./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_5e187db2-056e-4248-acd3-080c40854d34/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e187db2-056e-4248-acd3-080c40854d34/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_5e187db2-056e-4248-acd3-080c40854d34/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e187db2-056e-4248-acd3-080c40854d34/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e187db2-056e-4248-acd3-080c40854d34/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_5e187db2-056e-4248-acd3-080c40854d34/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 bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 --- 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 20:16:22,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:16:22,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:16:22,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:16:22,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:16:22,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:16:22,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:16:22,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:16:22,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:16:22,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:16:22,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:16:22,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:16:22,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:16:22,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:16:22,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:16:22,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:16:22,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:16:22,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:16:22,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:16:22,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:16:22,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:16:22,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:16:22,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:16:22,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:16:22,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:16:22,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:16:22,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:16:22,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:16:22,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:16:22,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:16:22,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:16:22,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:16:22,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:16:22,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:16:22,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:16:22,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:16:22,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:16:22,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:16:22,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:16:22,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:16:22,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:16:22,225 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e187db2-056e-4248-acd3-080c40854d34/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 20:16:22,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:16:22,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:16:22,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:16:22,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:16:22,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:16:22,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:16:22,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:16:22,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:16:22,247 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:16:22,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:16:22,248 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:16:22,248 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:16:22,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:16:22,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:16:22,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:16:22,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:16:22,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:16:22,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:16:22,249 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 20:16:22,249 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:16:22,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:16:22,250 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:16:22,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:16:22,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:16:22,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:16:22,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:16:22,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:16:22,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:16:22,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:16:22,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:16:22,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:16:22,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:16:22,252 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:16:22,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:16:22,252 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:16:22,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:16:22,253 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:16:22,253 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_5e187db2-056e-4248-acd3-080c40854d34/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e187db2-056e-4248-acd3-080c40854d34/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 [2022-12-13 20:16:22,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:16:22,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:16:22,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:16:22,454 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:16:22,455 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:16:22,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e187db2-056e-4248-acd3-080c40854d34/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-12-13 20:16:24,952 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:16:25,214 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:16:25,214 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e187db2-056e-4248-acd3-080c40854d34/sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-12-13 20:16:25,233 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e187db2-056e-4248-acd3-080c40854d34/bin/uautomizer-uyxdKDjOR8/data/463e05658/aceb93f673a04860bead2f6fa6e292d3/FLAGcfca253fc [2022-12-13 20:16:25,523 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e187db2-056e-4248-acd3-080c40854d34/bin/uautomizer-uyxdKDjOR8/data/463e05658/aceb93f673a04860bead2f6fa6e292d3 [2022-12-13 20:16:25,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:16:25,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:16:25,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:16:25,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:16:25,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:16:25,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:16:25" (1/1) ... [2022-12-13 20:16:25,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55962a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:25, skipping insertion in model container [2022-12-13 20:16:25,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:16:25" (1/1) ... [2022-12-13 20:16:25,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:16:25,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:16:26,054 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:16:26,061 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,062 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,066 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,067 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,067 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 20:16:26,070 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:16:26,070 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 20:16:26,071 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,072 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,073 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,074 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,076 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:16:26,079 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,079 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,081 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,081 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,082 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,083 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,083 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,084 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:16:26,095 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:16:26,126 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:16:26,127 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,128 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,129 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,129 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,129 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 20:16:26,130 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:16:26,131 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 20:16:26,131 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,132 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,132 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,133 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,135 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:16:26,136 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,136 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,137 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,138 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,139 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,139 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,140 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 20:16:26,140 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-13 20:16:26,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:16:26,237 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:16:26,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:26 WrapperNode [2022-12-13 20:16:26,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:16:26,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:16:26,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:16:26,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:16:26,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:26" (1/1) ... [2022-12-13 20:16:26,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:26" (1/1) ... [2022-12-13 20:16:26,278 INFO L138 Inliner]: procedures = 524, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137 [2022-12-13 20:16:26,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:16:26,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:16:26,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:16:26,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:16:26,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:26" (1/1) ... [2022-12-13 20:16:26,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:26" (1/1) ... [2022-12-13 20:16:26,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:26" (1/1) ... [2022-12-13 20:16:26,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:26" (1/1) ... [2022-12-13 20:16:26,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:26" (1/1) ... [2022-12-13 20:16:26,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:26" (1/1) ... [2022-12-13 20:16:26,303 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:26" (1/1) ... [2022-12-13 20:16:26,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:26" (1/1) ... [2022-12-13 20:16:26,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:16:26,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:16:26,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:16:26,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:16:26,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:26" (1/1) ... [2022-12-13 20:16:26,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:16:26,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e187db2-056e-4248-acd3-080c40854d34/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:16:26,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e187db2-056e-4248-acd3-080c40854d34/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:16:26,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e187db2-056e-4248-acd3-080c40854d34/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:16:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-12-13 20:16:26,364 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-12-13 20:16:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-13 20:16:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-12-13 20:16:26,365 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-12-13 20:16:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-12-13 20:16:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:16:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:16:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 20:16:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:16:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:16:26,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:16:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:16:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-12-13 20:16:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:16:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:16:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:16:26,367 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 20:16:26,581 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:16:26,582 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:16:26,826 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:16:26,833 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:16:26,833 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-12-13 20:16:26,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:16:26 BoogieIcfgContainer [2022-12-13 20:16:26,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:16:26,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:16:26,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:16:26,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:16:26,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:16:25" (1/3) ... [2022-12-13 20:16:26,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157c9fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:16:26, skipping insertion in model container [2022-12-13 20:16:26,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:26" (2/3) ... [2022-12-13 20:16:26,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157c9fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:16:26, skipping insertion in model container [2022-12-13 20:16:26,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:16:26" (3/3) ... [2022-12-13 20:16:26,840 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2022-12-13 20:16:26,846 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:16:26,854 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:16:26,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-13 20:16:26,854 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:16:26,909 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 20:16:26,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 276 transitions, 568 flow [2022-12-13 20:16:27,014 INFO L130 PetriNetUnfolder]: 31/274 cut-off events. [2022-12-13 20:16:27,014 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 20:16:27,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 274 events. 31/274 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 660 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 173. Up to 5 conditions per place. [2022-12-13 20:16:27,022 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 276 transitions, 568 flow [2022-12-13 20:16:27,029 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 263 transitions, 538 flow [2022-12-13 20:16:27,033 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:16:27,043 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 241 places, 263 transitions, 538 flow [2022-12-13 20:16:27,046 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 241 places, 263 transitions, 538 flow [2022-12-13 20:16:27,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 241 places, 263 transitions, 538 flow [2022-12-13 20:16:27,093 INFO L130 PetriNetUnfolder]: 29/263 cut-off events. [2022-12-13 20:16:27,093 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 20:16:27,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 263 events. 29/263 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 643 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 173. Up to 5 conditions per place. [2022-12-13 20:16:27,104 INFO L119 LiptonReduction]: Number of co-enabled transitions 19072 [2022-12-13 20:16:39,177 INFO L134 LiptonReduction]: Checked pairs total: 51344 [2022-12-13 20:16:39,177 INFO L136 LiptonReduction]: Total number of compositions: 253 [2022-12-13 20:16:39,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:16:39,198 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;@3825fe52, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:16:39,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-12-13 20:16:39,200 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 20:16:39,200 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:16:39,200 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:16:39,201 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 20:16:39,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-13 20:16:39,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:39,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1093, now seen corresponding path program 1 times [2022-12-13 20:16:39,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:39,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730239417] [2022-12-13 20:16:39,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:39,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:39,345 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 20:16:39,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:39,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730239417] [2022-12-13 20:16:39,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730239417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:39,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:39,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 20:16:39,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494632529] [2022-12-13 20:16:39,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:39,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:16:39,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:39,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:16:39,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:16:39,371 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 529 [2022-12-13 20:16:39,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 89 transitions, 190 flow. Second operand has 2 states, 2 states have (on average 245.5) internal successors, (491), 2 states have internal predecessors, (491), 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 20:16:39,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:16:39,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 529 [2022-12-13 20:16:39,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:16:39,601 INFO L130 PetriNetUnfolder]: 1167/2357 cut-off events. [2022-12-13 20:16:39,601 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-12-13 20:16:39,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4164 conditions, 2357 events. 1167/2357 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 15627 event pairs, 923 based on Foata normal form. 1/1702 useless extension candidates. Maximal degree in co-relation 3956. Up to 1774 conditions per place. [2022-12-13 20:16:39,611 INFO L137 encePairwiseOnDemand]: 514/529 looper letters, 36 selfloop transitions, 0 changer transitions 1/55 dead transitions. [2022-12-13 20:16:39,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 55 transitions, 196 flow [2022-12-13 20:16:39,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:16:39,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 20:16:39,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 542 transitions. [2022-12-13 20:16:39,622 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5122873345935728 [2022-12-13 20:16:39,622 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 542 transitions. [2022-12-13 20:16:39,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 542 transitions. [2022-12-13 20:16:39,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:16:39,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 542 transitions. [2022-12-13 20:16:39,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 271.0) internal successors, (542), 2 states have internal predecessors, (542), 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 20:16:39,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 529.0) internal successors, (1587), 3 states have internal predecessors, (1587), 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 20:16:39,633 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 529.0) internal successors, (1587), 3 states have internal predecessors, (1587), 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 20:16:39,634 INFO L175 Difference]: Start difference. First operand has 74 places, 89 transitions, 190 flow. Second operand 2 states and 542 transitions. [2022-12-13 20:16:39,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 55 transitions, 196 flow [2022-12-13 20:16:39,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 55 transitions, 188 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 20:16:39,639 INFO L231 Difference]: Finished difference. Result has 55 places, 54 transitions, 111 flow [2022-12-13 20:16:39,640 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=529, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=111, PETRI_PLACES=55, PETRI_TRANSITIONS=54} [2022-12-13 20:16:39,643 INFO L288 CegarLoopForPetriNet]: 74 programPoint places, -19 predicate places. [2022-12-13 20:16:39,643 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 54 transitions, 111 flow [2022-12-13 20:16:39,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 245.5) internal successors, (491), 2 states have internal predecessors, (491), 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 20:16:39,643 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:16:39,644 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 20:16:39,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:16:39,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-13 20:16:39,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:39,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1035359396, now seen corresponding path program 1 times [2022-12-13 20:16:39,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:39,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319042366] [2022-12-13 20:16:39,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:39,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:39,760 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 20:16:39,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:39,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319042366] [2022-12-13 20:16:39,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319042366] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:39,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:39,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:16:39,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115101132] [2022-12-13 20:16:39,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:39,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:16:39,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:39,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:16:39,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:39,776 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 529 [2022-12-13 20:16:39,777 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 54 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 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 20:16:39,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:16:39,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 529 [2022-12-13 20:16:39,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:16:39,984 INFO L130 PetriNetUnfolder]: 1204/2349 cut-off events. [2022-12-13 20:16:39,984 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-12-13 20:16:39,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4193 conditions, 2349 events. 1204/2349 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 15174 event pairs, 331 based on Foata normal form. 0/1710 useless extension candidates. Maximal degree in co-relation 4190. Up to 1773 conditions per place. [2022-12-13 20:16:39,991 INFO L137 encePairwiseOnDemand]: 525/529 looper letters, 47 selfloop transitions, 2 changer transitions 0/65 dead transitions. [2022-12-13 20:16:39,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 65 transitions, 232 flow [2022-12-13 20:16:39,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:16:39,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:16:39,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2022-12-13 20:16:39,994 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4820415879017013 [2022-12-13 20:16:39,994 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 765 transitions. [2022-12-13 20:16:39,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 765 transitions. [2022-12-13 20:16:39,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:16:39,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 765 transitions. [2022-12-13 20:16:39,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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 20:16:39,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:39,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:39,999 INFO L175 Difference]: Start difference. First operand has 55 places, 54 transitions, 111 flow. Second operand 3 states and 765 transitions. [2022-12-13 20:16:39,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 65 transitions, 232 flow [2022-12-13 20:16:40,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 65 transitions, 232 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:16:40,000 INFO L231 Difference]: Finished difference. Result has 55 places, 54 transitions, 121 flow [2022-12-13 20:16:40,001 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=529, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=55, PETRI_TRANSITIONS=54} [2022-12-13 20:16:40,001 INFO L288 CegarLoopForPetriNet]: 74 programPoint places, -19 predicate places. [2022-12-13 20:16:40,001 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 54 transitions, 121 flow [2022-12-13 20:16:40,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 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 20:16:40,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:16:40,002 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 20:16:40,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:16:40,002 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-13 20:16:40,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:40,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1035403595, now seen corresponding path program 1 times [2022-12-13 20:16:40,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:40,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6834167] [2022-12-13 20:16:40,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:40,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:40,070 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 20:16:40,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:40,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6834167] [2022-12-13 20:16:40,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6834167] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:40,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:40,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:16:40,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498488615] [2022-12-13 20:16:40,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:40,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:16:40,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:40,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:16:40,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:40,093 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 529 [2022-12-13 20:16:40,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 54 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 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 20:16:40,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:16:40,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 529 [2022-12-13 20:16:40,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:16:40,298 INFO L130 PetriNetUnfolder]: 1204/2216 cut-off events. [2022-12-13 20:16:40,299 INFO L131 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2022-12-13 20:16:40,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4239 conditions, 2216 events. 1204/2216 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 13302 event pairs, 668 based on Foata normal form. 152/1751 useless extension candidates. Maximal degree in co-relation 4235. Up to 1396 conditions per place. [2022-12-13 20:16:40,306 INFO L137 encePairwiseOnDemand]: 523/529 looper letters, 66 selfloop transitions, 3 changer transitions 1/83 dead transitions. [2022-12-13 20:16:40,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 83 transitions, 330 flow [2022-12-13 20:16:40,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:16:40,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:16:40,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 732 transitions. [2022-12-13 20:16:40,309 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4612476370510397 [2022-12-13 20:16:40,309 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 732 transitions. [2022-12-13 20:16:40,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 732 transitions. [2022-12-13 20:16:40,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:16:40,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 732 transitions. [2022-12-13 20:16:40,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 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 20:16:40,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:40,314 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:40,314 INFO L175 Difference]: Start difference. First operand has 55 places, 54 transitions, 121 flow. Second operand 3 states and 732 transitions. [2022-12-13 20:16:40,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 83 transitions, 330 flow [2022-12-13 20:16:40,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 83 transitions, 330 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:16:40,316 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 132 flow [2022-12-13 20:16:40,316 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=529, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2022-12-13 20:16:40,316 INFO L288 CegarLoopForPetriNet]: 74 programPoint places, -19 predicate places. [2022-12-13 20:16:40,317 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 132 flow [2022-12-13 20:16:40,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 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 20:16:40,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:16:40,317 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 20:16:40,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:16:40,317 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-13 20:16:40,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:40,318 INFO L85 PathProgramCache]: Analyzing trace with hash 2032621580, now seen corresponding path program 1 times [2022-12-13 20:16:40,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:40,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586638261] [2022-12-13 20:16:40,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:40,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:40,469 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 20:16:40,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:40,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586638261] [2022-12-13 20:16:40,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586638261] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:40,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:40,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:16:40,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484567554] [2022-12-13 20:16:40,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:40,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:16:40,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:40,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:16:40,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:40,507 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 529 [2022-12-13 20:16:40,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 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 20:16:40,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:16:40,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 529 [2022-12-13 20:16:40,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:16:40,682 INFO L130 PetriNetUnfolder]: 1003/1781 cut-off events. [2022-12-13 20:16:40,682 INFO L131 PetriNetUnfolder]: For 206/206 co-relation queries the response was YES. [2022-12-13 20:16:40,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3758 conditions, 1781 events. 1003/1781 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 10033 event pairs, 390 based on Foata normal form. 0/1337 useless extension candidates. Maximal degree in co-relation 3753. Up to 864 conditions per place. [2022-12-13 20:16:40,689 INFO L137 encePairwiseOnDemand]: 527/529 looper letters, 61 selfloop transitions, 1 changer transitions 0/75 dead transitions. [2022-12-13 20:16:40,689 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 75 transitions, 313 flow [2022-12-13 20:16:40,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:16:40,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:16:40,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 780 transitions. [2022-12-13 20:16:40,693 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4914933837429111 [2022-12-13 20:16:40,693 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 780 transitions. [2022-12-13 20:16:40,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 780 transitions. [2022-12-13 20:16:40,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:16:40,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 780 transitions. [2022-12-13 20:16:40,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 260.0) internal successors, (780), 3 states have internal predecessors, (780), 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 20:16:40,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:40,697 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:40,697 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 132 flow. Second operand 3 states and 780 transitions. [2022-12-13 20:16:40,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 75 transitions, 313 flow [2022-12-13 20:16:40,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 75 transitions, 313 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:16:40,699 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 132 flow [2022-12-13 20:16:40,699 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=529, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2022-12-13 20:16:40,700 INFO L288 CegarLoopForPetriNet]: 74 programPoint places, -18 predicate places. [2022-12-13 20:16:40,700 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 132 flow [2022-12-13 20:16:40,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 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 20:16:40,700 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:16:40,700 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:16:40,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:16:40,701 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-13 20:16:40,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:40,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2059314400, now seen corresponding path program 1 times [2022-12-13 20:16:40,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:40,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132507982] [2022-12-13 20:16:40,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:40,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:40,747 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 20:16:40,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:40,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132507982] [2022-12-13 20:16:40,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132507982] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:40,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:40,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:16:40,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422308615] [2022-12-13 20:16:40,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:40,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:16:40,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:40,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:16:40,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:40,763 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 529 [2022-12-13 20:16:40,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 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 20:16:40,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:16:40,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 529 [2022-12-13 20:16:40,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:16:41,095 INFO L130 PetriNetUnfolder]: 2930/4798 cut-off events. [2022-12-13 20:16:41,096 INFO L131 PetriNetUnfolder]: For 776/776 co-relation queries the response was YES. [2022-12-13 20:16:41,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10739 conditions, 4798 events. 2930/4798 cut-off events. For 776/776 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 25963 event pairs, 1002 based on Foata normal form. 0/3999 useless extension candidates. Maximal degree in co-relation 10733. Up to 2337 conditions per place. [2022-12-13 20:16:41,112 INFO L137 encePairwiseOnDemand]: 518/529 looper letters, 79 selfloop transitions, 8 changer transitions 0/92 dead transitions. [2022-12-13 20:16:41,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 92 transitions, 407 flow [2022-12-13 20:16:41,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:16:41,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:16:41,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 786 transitions. [2022-12-13 20:16:41,115 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4952741020793951 [2022-12-13 20:16:41,115 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 786 transitions. [2022-12-13 20:16:41,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 786 transitions. [2022-12-13 20:16:41,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:16:41,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 786 transitions. [2022-12-13 20:16:41,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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 20:16:41,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:41,119 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:41,119 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 132 flow. Second operand 3 states and 786 transitions. [2022-12-13 20:16:41,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 92 transitions, 407 flow [2022-12-13 20:16:41,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 92 transitions, 405 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:16:41,122 INFO L231 Difference]: Finished difference. Result has 59 places, 60 transitions, 201 flow [2022-12-13 20:16:41,122 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=529, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=59, PETRI_TRANSITIONS=60} [2022-12-13 20:16:41,122 INFO L288 CegarLoopForPetriNet]: 74 programPoint places, -15 predicate places. [2022-12-13 20:16:41,123 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 60 transitions, 201 flow [2022-12-13 20:16:41,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 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 20:16:41,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:16:41,123 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:16:41,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 20:16:41,123 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-13 20:16:41,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:41,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1706794629, now seen corresponding path program 1 times [2022-12-13 20:16:41,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:41,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876015130] [2022-12-13 20:16:41,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:41,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:41,283 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 20:16:41,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:41,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876015130] [2022-12-13 20:16:41,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876015130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:41,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:41,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:16:41,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039886795] [2022-12-13 20:16:41,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:41,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:16:41,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:41,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:16:41,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:41,318 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 529 [2022-12-13 20:16:41,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 60 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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 20:16:41,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:16:41,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 529 [2022-12-13 20:16:41,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:16:41,607 INFO L130 PetriNetUnfolder]: 2117/3724 cut-off events. [2022-12-13 20:16:41,607 INFO L131 PetriNetUnfolder]: For 967/977 co-relation queries the response was YES. [2022-12-13 20:16:41,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8997 conditions, 3724 events. 2117/3724 cut-off events. For 967/977 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 21404 event pairs, 1397 based on Foata normal form. 0/3025 useless extension candidates. Maximal degree in co-relation 8990. Up to 3074 conditions per place. [2022-12-13 20:16:41,622 INFO L137 encePairwiseOnDemand]: 527/529 looper letters, 51 selfloop transitions, 1 changer transitions 3/73 dead transitions. [2022-12-13 20:16:41,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 73 transitions, 354 flow [2022-12-13 20:16:41,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:16:41,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:16:41,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 770 transitions. [2022-12-13 20:16:41,626 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48519218651543794 [2022-12-13 20:16:41,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 770 transitions. [2022-12-13 20:16:41,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 770 transitions. [2022-12-13 20:16:41,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:16:41,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 770 transitions. [2022-12-13 20:16:41,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 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 20:16:41,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:41,630 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:41,630 INFO L175 Difference]: Start difference. First operand has 59 places, 60 transitions, 201 flow. Second operand 3 states and 770 transitions. [2022-12-13 20:16:41,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 73 transitions, 354 flow [2022-12-13 20:16:41,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 73 transitions, 334 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:16:41,634 INFO L231 Difference]: Finished difference. Result has 58 places, 59 transitions, 185 flow [2022-12-13 20:16:41,634 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=529, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=185, PETRI_PLACES=58, PETRI_TRANSITIONS=59} [2022-12-13 20:16:41,634 INFO L288 CegarLoopForPetriNet]: 74 programPoint places, -16 predicate places. [2022-12-13 20:16:41,634 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 59 transitions, 185 flow [2022-12-13 20:16:41,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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 20:16:41,635 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:16:41,635 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:16:41,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 20:16:41,635 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-13 20:16:41,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:41,636 INFO L85 PathProgramCache]: Analyzing trace with hash 39570952, now seen corresponding path program 1 times [2022-12-13 20:16:41,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:41,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330941561] [2022-12-13 20:16:41,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:41,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:41,673 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 20:16:41,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:41,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330941561] [2022-12-13 20:16:41,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330941561] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:41,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:41,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:16:41,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545117284] [2022-12-13 20:16:41,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:41,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:16:41,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:41,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:16:41,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:41,694 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 529 [2022-12-13 20:16:41,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 59 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 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 20:16:41,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:16:41,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 529 [2022-12-13 20:16:41,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:16:42,050 INFO L130 PetriNetUnfolder]: 2745/4556 cut-off events. [2022-12-13 20:16:42,050 INFO L131 PetriNetUnfolder]: For 780/826 co-relation queries the response was YES. [2022-12-13 20:16:42,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10970 conditions, 4556 events. 2745/4556 cut-off events. For 780/826 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 24802 event pairs, 1677 based on Foata normal form. 33/3630 useless extension candidates. Maximal degree in co-relation 10963. Up to 3873 conditions per place. [2022-12-13 20:16:42,069 INFO L137 encePairwiseOnDemand]: 523/529 looper letters, 55 selfloop transitions, 9 changer transitions 9/86 dead transitions. [2022-12-13 20:16:42,069 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 86 transitions, 414 flow [2022-12-13 20:16:42,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:16:42,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:16:42,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 768 transitions. [2022-12-13 20:16:42,071 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4839319470699433 [2022-12-13 20:16:42,071 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 768 transitions. [2022-12-13 20:16:42,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 768 transitions. [2022-12-13 20:16:42,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:16:42,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 768 transitions. [2022-12-13 20:16:42,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 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 20:16:42,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:42,075 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:42,075 INFO L175 Difference]: Start difference. First operand has 58 places, 59 transitions, 185 flow. Second operand 3 states and 768 transitions. [2022-12-13 20:16:42,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 86 transitions, 414 flow [2022-12-13 20:16:42,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 86 transitions, 413 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:16:42,078 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 246 flow [2022-12-13 20:16:42,078 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=529, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2022-12-13 20:16:42,078 INFO L288 CegarLoopForPetriNet]: 74 programPoint places, -14 predicate places. [2022-12-13 20:16:42,078 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 246 flow [2022-12-13 20:16:42,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 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 20:16:42,079 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:16:42,079 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:16:42,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 20:16:42,079 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting monitor_threadErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-13 20:16:42,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:42,079 INFO L85 PathProgramCache]: Analyzing trace with hash -321172126, now seen corresponding path program 1 times [2022-12-13 20:16:42,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:42,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305379371] [2022-12-13 20:16:42,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:42,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:42,145 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 20:16:42,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:42,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305379371] [2022-12-13 20:16:42,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305379371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:42,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:42,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:16:42,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716576773] [2022-12-13 20:16:42,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:42,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:16:42,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:42,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:16:42,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:42,163 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 529 [2022-12-13 20:16:42,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 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 20:16:42,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:16:42,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 529 [2022-12-13 20:16:42,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:16:42,464 INFO L130 PetriNetUnfolder]: 2759/4507 cut-off events. [2022-12-13 20:16:42,465 INFO L131 PetriNetUnfolder]: For 1893/2034 co-relation queries the response was YES. [2022-12-13 20:16:42,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11793 conditions, 4507 events. 2759/4507 cut-off events. For 1893/2034 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 23853 event pairs, 1652 based on Foata normal form. 13/3615 useless extension candidates. Maximal degree in co-relation 11785. Up to 3943 conditions per place. [2022-12-13 20:16:42,474 INFO L137 encePairwiseOnDemand]: 524/529 looper letters, 58 selfloop transitions, 8 changer transitions 4/83 dead transitions. [2022-12-13 20:16:42,474 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 83 transitions, 446 flow [2022-12-13 20:16:42,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:16:42,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:16:42,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 762 transitions. [2022-12-13 20:16:42,476 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48015122873345933 [2022-12-13 20:16:42,476 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 762 transitions. [2022-12-13 20:16:42,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 762 transitions. [2022-12-13 20:16:42,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:16:42,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 762 transitions. [2022-12-13 20:16:42,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 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 20:16:42,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:42,479 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 529.0) internal successors, (2116), 4 states have internal predecessors, (2116), 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 20:16:42,479 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 246 flow. Second operand 3 states and 762 transitions. [2022-12-13 20:16:42,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 83 transitions, 446 flow [2022-12-13 20:16:42,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 83 transitions, 435 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:16:42,484 INFO L231 Difference]: Finished difference. Result has 60 places, 68 transitions, 289 flow [2022-12-13 20:16:42,484 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=529, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=289, PETRI_PLACES=60, PETRI_TRANSITIONS=68} [2022-12-13 20:16:42,484 INFO L288 CegarLoopForPetriNet]: 74 programPoint places, -14 predicate places. [2022-12-13 20:16:42,484 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 68 transitions, 289 flow [2022-12-13 20:16:42,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 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 20:16:42,485 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:16:42,485 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:16:42,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 20:16:42,485 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-13 20:16:42,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:42,485 INFO L85 PathProgramCache]: Analyzing trace with hash 601204241, now seen corresponding path program 1 times [2022-12-13 20:16:42,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:42,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543979653] [2022-12-13 20:16:42,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:42,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:42,570 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 20:16:42,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:42,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543979653] [2022-12-13 20:16:42,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543979653] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:42,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:42,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:16:42,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839271267] [2022-12-13 20:16:42,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:42,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:16:42,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:42,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:16:42,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:16:42,602 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 529 [2022-12-13 20:16:42,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 68 transitions, 289 flow. Second operand has 4 states, 4 states have (on average 236.75) internal successors, (947), 4 states have internal predecessors, (947), 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 20:16:42,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:16:42,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 529 [2022-12-13 20:16:42,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:16:43,167 INFO L130 PetriNetUnfolder]: 4171/7023 cut-off events. [2022-12-13 20:16:43,167 INFO L131 PetriNetUnfolder]: For 4574/5128 co-relation queries the response was YES. [2022-12-13 20:16:43,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18291 conditions, 7023 events. 4171/7023 cut-off events. For 4574/5128 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 42126 event pairs, 830 based on Foata normal form. 294/5986 useless extension candidates. Maximal degree in co-relation 18282. Up to 2314 conditions per place. [2022-12-13 20:16:43,185 INFO L137 encePairwiseOnDemand]: 522/529 looper letters, 107 selfloop transitions, 9 changer transitions 3/141 dead transitions. [2022-12-13 20:16:43,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 141 transitions, 783 flow [2022-12-13 20:16:43,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 20:16:43,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 20:16:43,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1257 transitions. [2022-12-13 20:16:43,187 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47523629489603025 [2022-12-13 20:16:43,187 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1257 transitions. [2022-12-13 20:16:43,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1257 transitions. [2022-12-13 20:16:43,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:16:43,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1257 transitions. [2022-12-13 20:16:43,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 251.4) internal successors, (1257), 5 states have internal predecessors, (1257), 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 20:16:43,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 529.0) internal successors, (3174), 6 states have internal predecessors, (3174), 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 20:16:43,192 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 529.0) internal successors, (3174), 6 states have internal predecessors, (3174), 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 20:16:43,192 INFO L175 Difference]: Start difference. First operand has 60 places, 68 transitions, 289 flow. Second operand 5 states and 1257 transitions. [2022-12-13 20:16:43,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 141 transitions, 783 flow [2022-12-13 20:16:43,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 141 transitions, 769 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:16:43,200 INFO L231 Difference]: Finished difference. Result has 67 places, 76 transitions, 361 flow [2022-12-13 20:16:43,200 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=529, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=361, PETRI_PLACES=67, PETRI_TRANSITIONS=76} [2022-12-13 20:16:43,201 INFO L288 CegarLoopForPetriNet]: 74 programPoint places, -7 predicate places. [2022-12-13 20:16:43,201 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 76 transitions, 361 flow [2022-12-13 20:16:43,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 236.75) internal successors, (947), 4 states have internal predecessors, (947), 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 20:16:43,202 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:16:43,202 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:16:43,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 20:16:43,202 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-13 20:16:43,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:43,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1340293749, now seen corresponding path program 2 times [2022-12-13 20:16:43,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:43,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272367447] [2022-12-13 20:16:43,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:43,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:43,307 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 20:16:43,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:43,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272367447] [2022-12-13 20:16:43,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272367447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:43,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:43,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:16:43,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175559921] [2022-12-13 20:16:43,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:43,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:16:43,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:43,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:16:43,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:16:43,334 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 529 [2022-12-13 20:16:43,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 76 transitions, 361 flow. Second operand has 4 states, 4 states have (on average 236.75) internal successors, (947), 4 states have internal predecessors, (947), 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 20:16:43,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:16:43,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 529 [2022-12-13 20:16:43,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:16:44,005 INFO L130 PetriNetUnfolder]: 4652/7898 cut-off events. [2022-12-13 20:16:44,005 INFO L131 PetriNetUnfolder]: For 7041/7526 co-relation queries the response was YES. [2022-12-13 20:16:44,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23518 conditions, 7898 events. 4652/7898 cut-off events. For 7041/7526 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 49035 event pairs, 850 based on Foata normal form. 195/6863 useless extension candidates. Maximal degree in co-relation 23506. Up to 3605 conditions per place. [2022-12-13 20:16:44,027 INFO L137 encePairwiseOnDemand]: 520/529 looper letters, 86 selfloop transitions, 17 changer transitions 7/132 dead transitions. [2022-12-13 20:16:44,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 132 transitions, 798 flow [2022-12-13 20:16:44,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:16:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 20:16:44,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1013 transitions. [2022-12-13 20:16:44,029 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4787334593572779 [2022-12-13 20:16:44,029 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1013 transitions. [2022-12-13 20:16:44,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1013 transitions. [2022-12-13 20:16:44,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:16:44,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1013 transitions. [2022-12-13 20:16:44,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 253.25) internal successors, (1013), 4 states have internal predecessors, (1013), 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 20:16:44,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 529.0) internal successors, (2645), 5 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) [2022-12-13 20:16:44,034 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 529.0) internal successors, (2645), 5 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) [2022-12-13 20:16:44,034 INFO L175 Difference]: Start difference. First operand has 67 places, 76 transitions, 361 flow. Second operand 4 states and 1013 transitions. [2022-12-13 20:16:44,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 132 transitions, 798 flow [2022-12-13 20:16:44,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 132 transitions, 798 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:16:44,040 INFO L231 Difference]: Finished difference. Result has 73 places, 87 transitions, 506 flow [2022-12-13 20:16:44,041 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=529, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=506, PETRI_PLACES=73, PETRI_TRANSITIONS=87} [2022-12-13 20:16:44,041 INFO L288 CegarLoopForPetriNet]: 74 programPoint places, -1 predicate places. [2022-12-13 20:16:44,041 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 87 transitions, 506 flow [2022-12-13 20:16:44,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 236.75) internal successors, (947), 4 states have internal predecessors, (947), 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 20:16:44,042 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:16:44,042 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:16:44,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 20:16:44,042 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting monitor_threadErr4ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-13 20:16:44,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:44,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1286673757, now seen corresponding path program 1 times [2022-12-13 20:16:44,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:44,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413741931] [2022-12-13 20:16:44,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:44,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:16:44,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:16:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:16:44,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:16:44,096 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:16:44,097 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2022-12-13 20:16:44,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-12-13 20:16:44,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-12-13 20:16:44,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-12-13 20:16:44,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-12-13 20:16:44,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-12-13 20:16:44,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-12-13 20:16:44,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-12-13 20:16:44,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-12-13 20:16:44,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-12-13 20:16:44,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-12-13 20:16:44,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-12-13 20:16:44,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-12-13 20:16:44,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-12-13 20:16:44,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-12-13 20:16:44,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-12-13 20:16:44,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-12-13 20:16:44,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-12-13 20:16:44,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-12-13 20:16:44,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 31 remaining) [2022-12-13 20:16:44,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2022-12-13 20:16:44,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-12-13 20:16:44,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-12-13 20:16:44,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-12-13 20:16:44,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-12-13 20:16:44,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-12-13 20:16:44,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-12-13 20:16:44,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-12-13 20:16:44,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-12-13 20:16:44,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-12-13 20:16:44,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-12-13 20:16:44,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 20:16:44,102 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:16:44,108 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:16:44,108 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:16:44,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:16:44 BasicIcfg [2022-12-13 20:16:44,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:16:44,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:16:44,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:16:44,147 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:16:44,147 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:16:26" (3/4) ... [2022-12-13 20:16:44,149 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:16:44,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:16:44,149 INFO L158 Benchmark]: Toolchain (without parser) took 18623.23ms. Allocated memory was 159.4MB in the beginning and 507.5MB in the end (delta: 348.1MB). Free memory was 123.6MB in the beginning and 281.8MB in the end (delta: -158.2MB). Peak memory consumption was 192.8MB. Max. memory is 16.1GB. [2022-12-13 20:16:44,150 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 159.4MB. Free memory is still 112.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:16:44,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 710.55ms. Allocated memory is still 159.4MB. Free memory was 123.4MB in the beginning and 115.9MB in the end (delta: 7.5MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2022-12-13 20:16:44,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.00ms. Allocated memory is still 159.4MB. Free memory was 115.9MB in the beginning and 112.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:16:44,150 INFO L158 Benchmark]: Boogie Preprocessor took 29.74ms. Allocated memory is still 159.4MB. Free memory was 112.5MB in the beginning and 109.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:16:44,150 INFO L158 Benchmark]: RCFGBuilder took 525.82ms. Allocated memory is still 159.4MB. Free memory was 109.6MB in the beginning and 82.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 20:16:44,150 INFO L158 Benchmark]: TraceAbstraction took 17309.96ms. Allocated memory was 159.4MB in the beginning and 507.5MB in the end (delta: 348.1MB). Free memory was 81.7MB in the beginning and 281.8MB in the end (delta: -200.1MB). Peak memory consumption was 149.1MB. Max. memory is 16.1GB. [2022-12-13 20:16:44,151 INFO L158 Benchmark]: Witness Printer took 2.63ms. Allocated memory is still 507.5MB. Free memory is still 281.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:16:44,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 159.4MB. Free memory is still 112.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 710.55ms. Allocated memory is still 159.4MB. Free memory was 123.4MB in the beginning and 115.9MB in the end (delta: 7.5MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.00ms. Allocated memory is still 159.4MB. Free memory was 115.9MB in the beginning and 112.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.74ms. Allocated memory is still 159.4MB. Free memory was 112.5MB in the beginning and 109.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 525.82ms. Allocated memory is still 159.4MB. Free memory was 109.6MB in the beginning and 82.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 17309.96ms. Allocated memory was 159.4MB in the beginning and 507.5MB in the end (delta: 348.1MB). Free memory was 81.7MB in the beginning and 281.8MB in the end (delta: -200.1MB). Peak memory consumption was 149.1MB. Max. memory is 16.1GB. * Witness Printer took 2.63ms. Allocated memory is still 507.5MB. Free memory is still 281.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.1s, 241 PlacesBefore, 74 PlacesAfterwards, 263 TransitionsBefore, 89 TransitionsAfterwards, 19072 CoEnabledTransitionPairs, 8 FixpointIterations, 67 TrivialSequentialCompositions, 138 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 39 ConcurrentYvCompositions, 7 ChoiceCompositions, 253 TotalNumberOfCompositions, 51344 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24377, independent: 23711, independent conditional: 0, independent unconditional: 23711, dependent: 666, dependent conditional: 0, dependent unconditional: 666, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11439, independent: 11323, independent conditional: 0, independent unconditional: 11323, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24377, independent: 12388, independent conditional: 0, independent unconditional: 12388, dependent: 550, dependent conditional: 0, dependent unconditional: 550, unknown: 11439, unknown conditional: 0, unknown unconditional: 11439] , Statistics on independence cache: Total cache size (in pairs): 860, Positive cache size: 804, Positive conditional cache size: 0, Positive unconditional cache size: 804, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1830]: Data race detected Data race detected The following path leads to a data race: [L1797] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1798] 0 long counter; [L1799] 0 time_t end_time; [L1836] 0 int status; [L1837] 0 pthread_t counter_thread_id; [L1838] 0 pthread_t monitor_thread_id; [L1839] 0 end_time = time (((void *)0)) + 60 [L1840] EXPR, FCALL, FORK 0 pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1153, arg={0:0}, argc=1153, argv={1150:1151}, argv={1150:1151}, counter=0, counter_thread_id={26:0}, end_time=1, monitor_thread_id={27:0}, mutex={25:0}, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=-1] [L1801] 1 int status; [L1802] 1 int spin; VAL [arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}] [L1840] 0 status = pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) [L1841] COND FALSE 0 !(status != 0) [L1803] 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}, time (((void *)0))=0] [L1843] FCALL, FORK 0 pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0)) VAL [\old(argc)=1153, arg={0:0}, arg={0:0}, arg={0:0}, argc=1153, argv={1150:1151}, argv={1150:1151}, counter=0, counter_thread_id={26:0}, end_time=1, monitor_thread_id={27:0}, mutex={25:0}, pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0))=0, status=0, time (((void *)0))=0] [L1803] 1 time (((void *)0)) < end_time [L1803] COND TRUE 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}, time (((void *)0))=0] [L1817] 2 int status; [L1818] 2 int misses = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, misses=0, mutex={25:0}, time (((void *)0))=0] [L1819] 2 time (((void *)0)) < end_time [L1819] COND TRUE 2 time (((void *)0)) < end_time [L1804] 1 status = pthread_mutex_lock (&mutex) [L1805] COND FALSE 1 !(status != 0) [L1807] 1 spin = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=0] [L1807] COND TRUE 1 spin < 10000000 [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=0] [L1821] 2 status = pthread_mutex_trylock (&mutex) [L1822] COND FALSE 2 !(status != 16) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1152, counter++=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=0, status=16] [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1152, counter++=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=16, status=0] Now there is a data race on ~counter~0 between C: counter++ [1808] and C: counter++ [1830] - UnprovableResult [Line: 1819]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1824]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1828]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1803]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1806]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1811]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1842]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1845]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1846]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1848]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1849]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1843]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1840]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 359 locations, 31 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 560 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 339 mSDsluCounter, 95 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1161 IncrementalHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 112 mSolverCounterUnsat, 77 mSDtfsCounter, 1161 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=506occurred in iteration=10, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 20:16:44,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e187db2-056e-4248-acd3-080c40854d34/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE