./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/airline-5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/airline-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro --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 b3375d634339bd0477387b7559c4eae5ae554f112c0f1d9d1b21e4edc4514353 --- 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-8393723 [2022-11-18 20:56:23,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:56:23,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:56:23,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:56:23,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:56:23,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:56:23,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:56:23,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:56:23,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:56:23,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:56:23,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:56:23,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:56:23,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:56:23,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:56:23,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:56:23,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:56:23,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:56:23,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:56:23,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:56:23,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:56:23,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:56:23,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:56:23,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:56:23,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:56:23,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:56:23,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:56:23,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:56:23,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:56:23,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:56:23,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:56:23,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:56:23,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:56:23,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:56:23,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:56:23,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:56:23,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:56:23,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:56:23,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:56:23,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:56:23,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:56:23,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:56:23,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:56:23,256 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:56:23,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:56:23,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:56:23,258 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:56:23,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:56:23,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:56:23,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:56:23,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:56:23,261 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:56:23,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:56:23,263 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:56:23,263 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:56:23,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:56:23,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:56:23,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:56:23,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:56:23,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:56:23,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:56:23,265 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:56:23,265 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:56:23,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:56:23,266 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:56:23,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:56:23,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:56:23,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:56:23,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:56:23,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:56:23,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:56:23,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:56:23,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:56:23,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:56:23,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:56:23,271 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:56:23,271 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:56:23,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:56:23,271 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3375d634339bd0477387b7559c4eae5ae554f112c0f1d9d1b21e4edc4514353 [2022-11-18 20:56:23,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:56:23,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:56:23,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:56:23,621 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:56:23,622 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:56:23,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-deagle/airline-5.i [2022-11-18 20:56:23,703 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/data/98c8f44f9/6d7f421d771c41e5923db2df5be870c2/FLAG2ce1c4b1b [2022-11-18 20:56:24,328 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:56:24,329 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/sv-benchmarks/c/pthread-deagle/airline-5.i [2022-11-18 20:56:24,343 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/data/98c8f44f9/6d7f421d771c41e5923db2df5be870c2/FLAG2ce1c4b1b [2022-11-18 20:56:24,602 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/data/98c8f44f9/6d7f421d771c41e5923db2df5be870c2 [2022-11-18 20:56:24,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:56:24,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:56:24,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:56:24,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:56:24,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:56:24,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:56:24" (1/1) ... [2022-11-18 20:56:24,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa605d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:24, skipping insertion in model container [2022-11-18 20:56:24,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:56:24" (1/1) ... [2022-11-18 20:56:24,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:56:24,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:56:25,144 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/sv-benchmarks/c/pthread-deagle/airline-5.i[32089,32102] [2022-11-18 20:56:25,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:56:25,154 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:56:25,199 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/sv-benchmarks/c/pthread-deagle/airline-5.i[32089,32102] [2022-11-18 20:56:25,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:56:25,235 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:56:25,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25 WrapperNode [2022-11-18 20:56:25,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:56:25,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:56:25,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:56:25,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:56:25,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,320 INFO L138 Inliner]: procedures = 162, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2022-11-18 20:56:25,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:56:25,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:56:25,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:56:25,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:56:25,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,370 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:56:25,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:56:25,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:56:25,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:56:25,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (1/1) ... [2022-11-18 20:56:25,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:56:25,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:56:25,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:56:25,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:56:25,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:56:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:56:25,508 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2022-11-18 20:56:25,509 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2022-11-18 20:56:25,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:56:25,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:56:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:56:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:56:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:56:25,512 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:56:25,685 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:56:25,687 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:56:25,937 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:56:25,996 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:56:25,996 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:56:25,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:25 BoogieIcfgContainer [2022-11-18 20:56:25,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:56:26,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:56:26,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:56:26,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:56:26,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:56:24" (1/3) ... [2022-11-18 20:56:26,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f21a26b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:56:26, skipping insertion in model container [2022-11-18 20:56:26,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:25" (2/3) ... [2022-11-18 20:56:26,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f21a26b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:56:26, skipping insertion in model container [2022-11-18 20:56:26,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:25" (3/3) ... [2022-11-18 20:56:26,010 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-5.i [2022-11-18 20:56:26,021 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:56:26,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:56:26,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-18 20:56:26,033 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:56:26,107 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:56:26,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 88 transitions, 184 flow [2022-11-18 20:56:26,301 INFO L130 PetriNetUnfolder]: 9/119 cut-off events. [2022-11-18 20:56:26,301 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:56:26,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 119 events. 9/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 58. Up to 4 conditions per place. [2022-11-18 20:56:26,308 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 88 transitions, 184 flow [2022-11-18 20:56:26,314 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 88 transitions, 184 flow [2022-11-18 20:56:26,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:56:26,335 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;@413c0731, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:56:26,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-18 20:56:26,344 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-18 20:56:26,344 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:56:26,344 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:26,345 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:26,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:56:26,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:26,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1999147629, now seen corresponding path program 1 times [2022-11-18 20:56:26,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:26,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289622886] [2022-11-18 20:56:26,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:26,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:26,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:26,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:26,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289622886] [2022-11-18 20:56:26,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289622886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:26,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:26,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:56:26,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749996017] [2022-11-18 20:56:26,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:26,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:56:26,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:26,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:56:26,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:56:26,758 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 88 [2022-11-18 20:56:26,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 88 transitions, 184 flow. Second operand has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:26,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:26,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 88 [2022-11-18 20:56:26,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:26,893 INFO L130 PetriNetUnfolder]: 3/106 cut-off events. [2022-11-18 20:56:26,900 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:56:26,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 106 events. 3/106 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 215 event pairs, 0 based on Foata normal form. 6/98 useless extension candidates. Maximal degree in co-relation 50. Up to 8 conditions per place. [2022-11-18 20:56:26,903 INFO L137 encePairwiseOnDemand]: 80/88 looper letters, 7 selfloop transitions, 0 changer transitions 0/79 dead transitions. [2022-11-18 20:56:26,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 79 transitions, 180 flow [2022-11-18 20:56:26,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:56:26,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:56:26,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 159 transitions. [2022-11-18 20:56:26,929 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-18 20:56:26,930 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 159 transitions. [2022-11-18 20:56:26,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 159 transitions. [2022-11-18 20:56:26,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:26,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 159 transitions. [2022-11-18 20:56:26,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:26,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:26,949 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:26,951 INFO L175 Difference]: Start difference. First operand has 85 places, 88 transitions, 184 flow. Second operand 2 states and 159 transitions. [2022-11-18 20:56:26,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 79 transitions, 180 flow [2022-11-18 20:56:26,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 79 transitions, 180 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:56:26,959 INFO L231 Difference]: Finished difference. Result has 80 places, 79 transitions, 166 flow [2022-11-18 20:56:26,962 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=166, PETRI_PLACES=80, PETRI_TRANSITIONS=79} [2022-11-18 20:56:26,966 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -5 predicate places. [2022-11-18 20:56:26,967 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 166 flow [2022-11-18 20:56:26,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:26,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:26,968 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:26,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:56:26,968 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:56:26,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:26,969 INFO L85 PathProgramCache]: Analyzing trace with hash 676304161, now seen corresponding path program 1 times [2022-11-18 20:56:26,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:26,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313845732] [2022-11-18 20:56:26,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:26,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:27,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:27,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:27,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313845732] [2022-11-18 20:56:27,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313845732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:27,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:27,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:56:27,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330338142] [2022-11-18 20:56:27,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:27,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:56:27,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:27,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:56:27,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:56:27,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 88 [2022-11-18 20:56:27,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:27,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 88 [2022-11-18 20:56:27,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:27,193 INFO L130 PetriNetUnfolder]: 12/148 cut-off events. [2022-11-18 20:56:27,194 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:56:27,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 148 events. 12/148 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 343 event pairs, 3 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 185. Up to 23 conditions per place. [2022-11-18 20:56:27,196 INFO L137 encePairwiseOnDemand]: 85/88 looper letters, 16 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2022-11-18 20:56:27,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 83 transitions, 210 flow [2022-11-18 20:56:27,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:56:27,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:56:27,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2022-11-18 20:56:27,200 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8106060606060606 [2022-11-18 20:56:27,200 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2022-11-18 20:56:27,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2022-11-18 20:56:27,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:27,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2022-11-18 20:56:27,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,206 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,206 INFO L175 Difference]: Start difference. First operand has 80 places, 79 transitions, 166 flow. Second operand 3 states and 214 transitions. [2022-11-18 20:56:27,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 83 transitions, 210 flow [2022-11-18 20:56:27,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 83 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:56:27,210 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 174 flow [2022-11-18 20:56:27,211 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2022-11-18 20:56:27,212 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -2 predicate places. [2022-11-18 20:56:27,212 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 174 flow [2022-11-18 20:56:27,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,213 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:27,213 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:27,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:56:27,214 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:56:27,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:27,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1440702948, now seen corresponding path program 1 times [2022-11-18 20:56:27,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:27,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145208731] [2022-11-18 20:56:27,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:27,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:27,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:27,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:27,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145208731] [2022-11-18 20:56:27,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145208731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:27,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:27,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:56:27,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197859187] [2022-11-18 20:56:27,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:27,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:56:27,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:27,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:56:27,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:56:27,312 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 88 [2022-11-18 20:56:27,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:27,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 88 [2022-11-18 20:56:27,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:27,368 INFO L130 PetriNetUnfolder]: 1/131 cut-off events. [2022-11-18 20:56:27,369 INFO L131 PetriNetUnfolder]: For 8/14 co-relation queries the response was YES. [2022-11-18 20:56:27,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 131 events. 1/131 cut-off events. For 8/14 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 150. Up to 7 conditions per place. [2022-11-18 20:56:27,370 INFO L137 encePairwiseOnDemand]: 85/88 looper letters, 8 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2022-11-18 20:56:27,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 79 transitions, 197 flow [2022-11-18 20:56:27,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:56:27,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:56:27,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2022-11-18 20:56:27,373 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8257575757575758 [2022-11-18 20:56:27,374 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2022-11-18 20:56:27,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2022-11-18 20:56:27,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:27,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2022-11-18 20:56:27,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,378 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,378 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 174 flow. Second operand 3 states and 218 transitions. [2022-11-18 20:56:27,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 79 transitions, 197 flow [2022-11-18 20:56:27,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 79 transitions, 193 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:56:27,381 INFO L231 Difference]: Finished difference. Result has 82 places, 78 transitions, 172 flow [2022-11-18 20:56:27,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=82, PETRI_TRANSITIONS=78} [2022-11-18 20:56:27,383 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -3 predicate places. [2022-11-18 20:56:27,383 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 172 flow [2022-11-18 20:56:27,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,383 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:27,384 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:27,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:56:27,384 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:56:27,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:27,385 INFO L85 PathProgramCache]: Analyzing trace with hash 373619005, now seen corresponding path program 1 times [2022-11-18 20:56:27,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:27,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566010216] [2022-11-18 20:56:27,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:27,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:27,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:27,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:27,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566010216] [2022-11-18 20:56:27,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566010216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:27,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:27,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:56:27,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555114087] [2022-11-18 20:56:27,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:27,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:56:27,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:27,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:56:27,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:56:27,489 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 88 [2022-11-18 20:56:27,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:27,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 88 [2022-11-18 20:56:27,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:27,584 INFO L130 PetriNetUnfolder]: 7/188 cut-off events. [2022-11-18 20:56:27,584 INFO L131 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2022-11-18 20:56:27,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 188 events. 7/188 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 580 event pairs, 4 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 231. Up to 23 conditions per place. [2022-11-18 20:56:27,586 INFO L137 encePairwiseOnDemand]: 82/88 looper letters, 11 selfloop transitions, 3 changer transitions 11/81 dead transitions. [2022-11-18 20:56:27,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 81 transitions, 213 flow [2022-11-18 20:56:27,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:56:27,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:56:27,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2022-11-18 20:56:27,603 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2022-11-18 20:56:27,603 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2022-11-18 20:56:27,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2022-11-18 20:56:27,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:27,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2022-11-18 20:56:27,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,613 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 172 flow. Second operand 3 states and 216 transitions. [2022-11-18 20:56:27,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 81 transitions, 213 flow [2022-11-18 20:56:27,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 81 transitions, 209 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:56:27,619 INFO L231 Difference]: Finished difference. Result has 83 places, 69 transitions, 168 flow [2022-11-18 20:56:27,622 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=83, PETRI_TRANSITIONS=69} [2022-11-18 20:56:27,623 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -2 predicate places. [2022-11-18 20:56:27,628 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 69 transitions, 168 flow [2022-11-18 20:56:27,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,629 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:27,629 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:27,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:56:27,630 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 20:56:27,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:27,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1959545260, now seen corresponding path program 1 times [2022-11-18 20:56:27,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:27,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140179682] [2022-11-18 20:56:27,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:27,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:27,703 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:56:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:27,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:56:27,788 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:56:27,789 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2022-11-18 20:56:27,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-18 20:56:27,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-18 20:56:27,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-18 20:56:27,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-18 20:56:27,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-11-18 20:56:27,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-18 20:56:27,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-18 20:56:27,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-18 20:56:27,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-18 20:56:27,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-18 20:56:27,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-18 20:56:27,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-18 20:56:27,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-18 20:56:27,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:56:27,797 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 20:56:27,801 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:56:27,801 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 20:56:27,836 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:56:27,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 108 transitions, 234 flow [2022-11-18 20:56:27,908 INFO L130 PetriNetUnfolder]: 18/209 cut-off events. [2022-11-18 20:56:27,908 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:56:27,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 209 events. 18/209 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 516 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 121. Up to 8 conditions per place. [2022-11-18 20:56:27,915 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 108 transitions, 234 flow [2022-11-18 20:56:27,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 108 transitions, 234 flow [2022-11-18 20:56:27,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:56:27,935 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;@413c0731, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:56:27,935 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-18 20:56:27,940 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-18 20:56:27,940 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:56:27,941 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:27,941 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:27,941 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:56:27,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:27,942 INFO L85 PathProgramCache]: Analyzing trace with hash -746215681, now seen corresponding path program 1 times [2022-11-18 20:56:27,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:27,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603394456] [2022-11-18 20:56:27,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:27,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:27,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:27,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:27,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603394456] [2022-11-18 20:56:27,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603394456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:27,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:27,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:56:27,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570505409] [2022-11-18 20:56:27,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:27,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:56:27,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:27,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:56:27,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:56:27,979 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-11-18 20:56:27,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 108 transitions, 234 flow. Second operand has 2 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:27,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:27,980 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-11-18 20:56:27,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:28,057 INFO L130 PetriNetUnfolder]: 16/208 cut-off events. [2022-11-18 20:56:28,057 INFO L131 PetriNetUnfolder]: For 36/41 co-relation queries the response was YES. [2022-11-18 20:56:28,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 208 events. 16/208 cut-off events. For 36/41 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 642 event pairs, 1 based on Foata normal form. 18/197 useless extension candidates. Maximal degree in co-relation 116. Up to 27 conditions per place. [2022-11-18 20:56:28,062 INFO L137 encePairwiseOnDemand]: 98/108 looper letters, 11 selfloop transitions, 0 changer transitions 0/97 dead transitions. [2022-11-18 20:56:28,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 97 transitions, 234 flow [2022-11-18 20:56:28,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:56:28,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:56:28,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 193 transitions. [2022-11-18 20:56:28,066 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8935185185185185 [2022-11-18 20:56:28,066 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 193 transitions. [2022-11-18 20:56:28,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 193 transitions. [2022-11-18 20:56:28,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:28,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 193 transitions. [2022-11-18 20:56:28,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,069 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,071 INFO L175 Difference]: Start difference. First operand has 104 places, 108 transitions, 234 flow. Second operand 2 states and 193 transitions. [2022-11-18 20:56:28,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 97 transitions, 234 flow [2022-11-18 20:56:28,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 97 transitions, 234 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:56:28,077 INFO L231 Difference]: Finished difference. Result has 97 places, 97 transitions, 212 flow [2022-11-18 20:56:28,078 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=212, PETRI_PLACES=97, PETRI_TRANSITIONS=97} [2022-11-18 20:56:28,083 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -7 predicate places. [2022-11-18 20:56:28,083 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 97 transitions, 212 flow [2022-11-18 20:56:28,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,084 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:28,084 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:28,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:56:28,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:56:28,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:28,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1859938163, now seen corresponding path program 1 times [2022-11-18 20:56:28,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:28,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178140273] [2022-11-18 20:56:28,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:28,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:28,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:28,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:28,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178140273] [2022-11-18 20:56:28,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178140273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:28,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:28,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:56:28,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799685326] [2022-11-18 20:56:28,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:28,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:56:28,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:28,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:56:28,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:56:28,202 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 108 [2022-11-18 20:56:28,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 97 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:28,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 108 [2022-11-18 20:56:28,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:28,371 INFO L130 PetriNetUnfolder]: 68/423 cut-off events. [2022-11-18 20:56:28,371 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-18 20:56:28,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 423 events. 68/423 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2061 event pairs, 9 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 562. Up to 103 conditions per place. [2022-11-18 20:56:28,377 INFO L137 encePairwiseOnDemand]: 105/108 looper letters, 22 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2022-11-18 20:56:28,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 103 transitions, 272 flow [2022-11-18 20:56:28,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:56:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:56:28,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2022-11-18 20:56:28,380 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.808641975308642 [2022-11-18 20:56:28,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2022-11-18 20:56:28,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2022-11-18 20:56:28,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:28,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2022-11-18 20:56:28,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,386 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,386 INFO L175 Difference]: Start difference. First operand has 97 places, 97 transitions, 212 flow. Second operand 3 states and 262 transitions. [2022-11-18 20:56:28,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 103 transitions, 272 flow [2022-11-18 20:56:28,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 103 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:56:28,391 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 224 flow [2022-11-18 20:56:28,392 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=100, PETRI_TRANSITIONS=98} [2022-11-18 20:56:28,394 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -4 predicate places. [2022-11-18 20:56:28,394 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 224 flow [2022-11-18 20:56:28,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,395 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:28,395 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:28,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:56:28,396 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:56:28,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:28,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1310943378, now seen corresponding path program 1 times [2022-11-18 20:56:28,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:28,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994836294] [2022-11-18 20:56:28,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:28,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:28,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:28,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:28,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994836294] [2022-11-18 20:56:28,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994836294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:28,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:28,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:56:28,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772719458] [2022-11-18 20:56:28,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:28,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:56:28,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:28,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:56:28,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:56:28,480 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 108 [2022-11-18 20:56:28,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 98 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:28,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 108 [2022-11-18 20:56:28,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:28,662 INFO L130 PetriNetUnfolder]: 52/631 cut-off events. [2022-11-18 20:56:28,663 INFO L131 PetriNetUnfolder]: For 111/313 co-relation queries the response was YES. [2022-11-18 20:56:28,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 631 events. 52/631 cut-off events. For 111/313 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3962 event pairs, 10 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 780. Up to 52 conditions per place. [2022-11-18 20:56:28,668 INFO L137 encePairwiseOnDemand]: 100/108 looper letters, 22 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2022-11-18 20:56:28,668 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 109 transitions, 313 flow [2022-11-18 20:56:28,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:56:28,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:56:28,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2022-11-18 20:56:28,671 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-11-18 20:56:28,671 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2022-11-18 20:56:28,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2022-11-18 20:56:28,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:28,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2022-11-18 20:56:28,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,676 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,676 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 224 flow. Second operand 3 states and 270 transitions. [2022-11-18 20:56:28,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 109 transitions, 313 flow [2022-11-18 20:56:28,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 109 transitions, 311 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:56:28,690 INFO L231 Difference]: Finished difference. Result has 103 places, 104 transitions, 274 flow [2022-11-18 20:56:28,691 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=103, PETRI_TRANSITIONS=104} [2022-11-18 20:56:28,693 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -1 predicate places. [2022-11-18 20:56:28,697 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 104 transitions, 274 flow [2022-11-18 20:56:28,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,699 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:28,699 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:28,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:56:28,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:56:28,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:28,701 INFO L85 PathProgramCache]: Analyzing trace with hash 176942779, now seen corresponding path program 1 times [2022-11-18 20:56:28,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:28,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230210634] [2022-11-18 20:56:28,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:28,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:28,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:28,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230210634] [2022-11-18 20:56:28,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230210634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:28,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:28,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:56:28,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760501132] [2022-11-18 20:56:28,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:28,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:56:28,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:28,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:56:28,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:56:28,771 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-11-18 20:56:28,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 104 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:28,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:28,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-11-18 20:56:28,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:29,135 INFO L130 PetriNetUnfolder]: 266/1659 cut-off events. [2022-11-18 20:56:29,135 INFO L131 PetriNetUnfolder]: For 362/767 co-relation queries the response was YES. [2022-11-18 20:56:29,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2433 conditions, 1659 events. 266/1659 cut-off events. For 362/767 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 14100 event pairs, 91 based on Foata normal form. 1/1410 useless extension candidates. Maximal degree in co-relation 2425. Up to 383 conditions per place. [2022-11-18 20:56:29,146 INFO L137 encePairwiseOnDemand]: 97/108 looper letters, 27 selfloop transitions, 8 changer transitions 0/117 dead transitions. [2022-11-18 20:56:29,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 117 transitions, 389 flow [2022-11-18 20:56:29,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:56:29,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:56:29,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2022-11-18 20:56:29,148 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8240740740740741 [2022-11-18 20:56:29,149 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2022-11-18 20:56:29,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2022-11-18 20:56:29,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:29,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2022-11-18 20:56:29,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:29,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:29,152 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:29,152 INFO L175 Difference]: Start difference. First operand has 103 places, 104 transitions, 274 flow. Second operand 3 states and 267 transitions. [2022-11-18 20:56:29,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 117 transitions, 389 flow [2022-11-18 20:56:29,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 117 transitions, 373 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:56:29,158 INFO L231 Difference]: Finished difference. Result has 105 places, 112 transitions, 332 flow [2022-11-18 20:56:29,159 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=105, PETRI_TRANSITIONS=112} [2022-11-18 20:56:29,160 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, 1 predicate places. [2022-11-18 20:56:29,160 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 112 transitions, 332 flow [2022-11-18 20:56:29,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:29,160 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:29,161 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:29,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:56:29,161 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:56:29,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:29,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1184394343, now seen corresponding path program 1 times [2022-11-18 20:56:29,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:29,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680250973] [2022-11-18 20:56:29,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:29,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:29,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:29,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:29,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680250973] [2022-11-18 20:56:29,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680250973] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:56:29,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881595736] [2022-11-18 20:56:29,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:29,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:56:29,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:56:29,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:56:29,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:56:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:29,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:56:29,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:56:29,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:29,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:56:29,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:29,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881595736] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:56:29,620 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:56:29,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:56:29,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911520219] [2022-11-18 20:56:29,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:56:29,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:56:29,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:29,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:56:29,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:56:29,626 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 108 [2022-11-18 20:56:29,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 112 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 80.6) internal successors, (806), 10 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:29,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:29,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 108 [2022-11-18 20:56:29,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:29,894 INFO L130 PetriNetUnfolder]: 196/645 cut-off events. [2022-11-18 20:56:29,894 INFO L131 PetriNetUnfolder]: For 445/620 co-relation queries the response was YES. [2022-11-18 20:56:29,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1418 conditions, 645 events. 196/645 cut-off events. For 445/620 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 4598 event pairs, 5 based on Foata normal form. 47/623 useless extension candidates. Maximal degree in co-relation 1409. Up to 156 conditions per place. [2022-11-18 20:56:29,901 INFO L137 encePairwiseOnDemand]: 103/108 looper letters, 50 selfloop transitions, 7 changer transitions 0/117 dead transitions. [2022-11-18 20:56:29,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 117 transitions, 512 flow [2022-11-18 20:56:29,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:56:29,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:56:29,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 745 transitions. [2022-11-18 20:56:29,905 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7664609053497943 [2022-11-18 20:56:29,905 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 745 transitions. [2022-11-18 20:56:29,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 745 transitions. [2022-11-18 20:56:29,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:29,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 745 transitions. [2022-11-18 20:56:29,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.77777777777777) internal successors, (745), 9 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:29,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:29,913 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:29,913 INFO L175 Difference]: Start difference. First operand has 105 places, 112 transitions, 332 flow. Second operand 9 states and 745 transitions. [2022-11-18 20:56:29,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 117 transitions, 512 flow [2022-11-18 20:56:29,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 117 transitions, 480 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-18 20:56:29,920 INFO L231 Difference]: Finished difference. Result has 84 places, 83 transitions, 252 flow [2022-11-18 20:56:29,921 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=252, PETRI_PLACES=84, PETRI_TRANSITIONS=83} [2022-11-18 20:56:29,921 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -20 predicate places. [2022-11-18 20:56:29,921 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 83 transitions, 252 flow [2022-11-18 20:56:29,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 80.6) internal successors, (806), 10 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:29,922 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:29,922 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:29,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:56:30,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:56:30,123 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-18 20:56:30,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:30,124 INFO L85 PathProgramCache]: Analyzing trace with hash 96829731, now seen corresponding path program 1 times [2022-11-18 20:56:30,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:30,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160994526] [2022-11-18 20:56:30,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:30,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:30,173 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:56:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:30,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:56:30,210 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:56:30,212 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-11-18 20:56:30,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2022-11-18 20:56:30,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2022-11-18 20:56:30,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2022-11-18 20:56:30,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2022-11-18 20:56:30,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2022-11-18 20:56:30,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2022-11-18 20:56:30,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2022-11-18 20:56:30,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2022-11-18 20:56:30,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2022-11-18 20:56:30,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2022-11-18 20:56:30,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2022-11-18 20:56:30,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2022-11-18 20:56:30,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2022-11-18 20:56:30,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2022-11-18 20:56:30,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2022-11-18 20:56:30,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2022-11-18 20:56:30,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2022-11-18 20:56:30,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:56:30,217 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-18 20:56:30,218 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:56:30,218 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 20:56:30,257 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:56:30,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 128 transitions, 286 flow [2022-11-18 20:56:30,320 INFO L130 PetriNetUnfolder]: 34/360 cut-off events. [2022-11-18 20:56:30,320 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-18 20:56:30,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 360 events. 34/360 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1103 event pairs, 1 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 217. Up to 16 conditions per place. [2022-11-18 20:56:30,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 128 transitions, 286 flow [2022-11-18 20:56:30,329 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 128 transitions, 286 flow [2022-11-18 20:56:30,332 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:56:30,332 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;@413c0731, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:56:30,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-18 20:56:30,335 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-18 20:56:30,336 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:56:30,336 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:30,336 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:30,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:56:30,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:30,337 INFO L85 PathProgramCache]: Analyzing trace with hash 579667839, now seen corresponding path program 1 times [2022-11-18 20:56:30,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:30,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576652869] [2022-11-18 20:56:30,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:30,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:30,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:30,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576652869] [2022-11-18 20:56:30,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576652869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:30,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:30,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:56:30,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734789939] [2022-11-18 20:56:30,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:30,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:56:30,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:30,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:56:30,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:56:30,370 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 128 [2022-11-18 20:56:30,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 128 transitions, 286 flow. Second operand has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:30,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:30,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 128 [2022-11-18 20:56:30,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:30,479 INFO L130 PetriNetUnfolder]: 84/453 cut-off events. [2022-11-18 20:56:30,479 INFO L131 PetriNetUnfolder]: For 191/217 co-relation queries the response was YES. [2022-11-18 20:56:30,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 453 events. 84/453 cut-off events. For 191/217 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1922 event pairs, 19 based on Foata normal form. 57/450 useless extension candidates. Maximal degree in co-relation 317. Up to 115 conditions per place. [2022-11-18 20:56:30,485 INFO L137 encePairwiseOnDemand]: 116/128 looper letters, 15 selfloop transitions, 0 changer transitions 0/115 dead transitions. [2022-11-18 20:56:30,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 115 transitions, 290 flow [2022-11-18 20:56:30,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:56:30,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:56:30,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 227 transitions. [2022-11-18 20:56:30,488 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.88671875 [2022-11-18 20:56:30,488 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 227 transitions. [2022-11-18 20:56:30,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 227 transitions. [2022-11-18 20:56:30,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:30,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 227 transitions. [2022-11-18 20:56:30,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:30,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:30,493 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:30,494 INFO L175 Difference]: Start difference. First operand has 123 places, 128 transitions, 286 flow. Second operand 2 states and 227 transitions. [2022-11-18 20:56:30,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 115 transitions, 290 flow [2022-11-18 20:56:30,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 115 transitions, 290 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:56:30,497 INFO L231 Difference]: Finished difference. Result has 114 places, 115 transitions, 260 flow [2022-11-18 20:56:30,498 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=260, PETRI_PLACES=114, PETRI_TRANSITIONS=115} [2022-11-18 20:56:30,500 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -9 predicate places. [2022-11-18 20:56:30,500 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 115 transitions, 260 flow [2022-11-18 20:56:30,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:30,500 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:30,501 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:30,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:56:30,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:56:30,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:30,502 INFO L85 PathProgramCache]: Analyzing trace with hash -93669107, now seen corresponding path program 1 times [2022-11-18 20:56:30,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:30,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918701598] [2022-11-18 20:56:30,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:30,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:30,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:30,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918701598] [2022-11-18 20:56:30,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918701598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:30,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:30,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:56:30,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867542767] [2022-11-18 20:56:30,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:30,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:56:30,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:30,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:56:30,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:56:30,560 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-18 20:56:30,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 115 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:30,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:30,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-18 20:56:30,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:30,859 INFO L130 PetriNetUnfolder]: 258/1209 cut-off events. [2022-11-18 20:56:30,860 INFO L131 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2022-11-18 20:56:30,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 1209 events. 258/1209 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 7825 event pairs, 58 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 1666. Up to 347 conditions per place. [2022-11-18 20:56:30,872 INFO L137 encePairwiseOnDemand]: 125/128 looper letters, 26 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2022-11-18 20:56:30,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 121 transitions, 328 flow [2022-11-18 20:56:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:56:30,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:56:30,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2022-11-18 20:56:30,875 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8020833333333334 [2022-11-18 20:56:30,875 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2022-11-18 20:56:30,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2022-11-18 20:56:30,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:30,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2022-11-18 20:56:30,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:30,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:30,879 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:30,880 INFO L175 Difference]: Start difference. First operand has 114 places, 115 transitions, 260 flow. Second operand 3 states and 308 transitions. [2022-11-18 20:56:30,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 121 transitions, 328 flow [2022-11-18 20:56:30,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 121 transitions, 328 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:56:30,884 INFO L231 Difference]: Finished difference. Result has 117 places, 116 transitions, 272 flow [2022-11-18 20:56:30,884 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=117, PETRI_TRANSITIONS=116} [2022-11-18 20:56:30,886 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -6 predicate places. [2022-11-18 20:56:30,886 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 116 transitions, 272 flow [2022-11-18 20:56:30,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:30,887 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:30,887 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:30,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:56:30,888 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:56:30,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:30,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1706220828, now seen corresponding path program 1 times [2022-11-18 20:56:30,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:30,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010430324] [2022-11-18 20:56:30,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:30,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:30,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:30,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:30,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010430324] [2022-11-18 20:56:30,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010430324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:30,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:30,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:56:30,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518287722] [2022-11-18 20:56:30,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:30,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:56:30,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:30,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:56:30,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:56:30,950 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 128 [2022-11-18 20:56:30,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 116 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:30,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:30,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 128 [2022-11-18 20:56:30,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:31,692 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][81], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 103#L721-2true, 129#true, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:56:31,693 INFO L383 tUnfolder$Statistics]: this new event has 96 ancestors and is cut-off event [2022-11-18 20:56:31,693 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-18 20:56:31,693 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-18 20:56:31,693 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-18 20:56:31,694 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 134#true, 129#true, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true]) [2022-11-18 20:56:31,694 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:56:31,694 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:56:31,694 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:56:31,695 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:56:31,695 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][116], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 134#true, 129#true, salethreadThread3of3ForFork0NotInUse, 87#L721-3true, 126#true]) [2022-11-18 20:56:31,695 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:56:31,695 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:56:31,696 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:56:31,696 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:56:31,749 INFO L130 PetriNetUnfolder]: 654/3901 cut-off events. [2022-11-18 20:56:31,749 INFO L131 PetriNetUnfolder]: For 1338/3693 co-relation queries the response was YES. [2022-11-18 20:56:31,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5261 conditions, 3901 events. 654/3901 cut-off events. For 1338/3693 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 39293 event pairs, 115 based on Foata normal form. 1/3144 useless extension candidates. Maximal degree in co-relation 5253. Up to 474 conditions per place. [2022-11-18 20:56:31,791 INFO L137 encePairwiseOnDemand]: 116/128 looper letters, 32 selfloop transitions, 9 changer transitions 0/133 dead transitions. [2022-11-18 20:56:31,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 133 transitions, 409 flow [2022-11-18 20:56:31,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:56:31,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:56:31,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2022-11-18 20:56:31,808 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8255208333333334 [2022-11-18 20:56:31,808 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2022-11-18 20:56:31,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2022-11-18 20:56:31,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:31,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2022-11-18 20:56:31,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:31,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:31,811 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:31,811 INFO L175 Difference]: Start difference. First operand has 117 places, 116 transitions, 272 flow. Second operand 3 states and 317 transitions. [2022-11-18 20:56:31,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 133 transitions, 409 flow [2022-11-18 20:56:31,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 133 transitions, 407 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:56:31,816 INFO L231 Difference]: Finished difference. Result has 120 places, 125 transitions, 348 flow [2022-11-18 20:56:31,816 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=120, PETRI_TRANSITIONS=125} [2022-11-18 20:56:31,817 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -3 predicate places. [2022-11-18 20:56:31,817 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 125 transitions, 348 flow [2022-11-18 20:56:31,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:31,817 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:31,817 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:31,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:56:31,818 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:56:31,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:31,818 INFO L85 PathProgramCache]: Analyzing trace with hash 913815373, now seen corresponding path program 1 times [2022-11-18 20:56:31,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:31,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629586969] [2022-11-18 20:56:31,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:31,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:31,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:31,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:31,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629586969] [2022-11-18 20:56:31,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629586969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:31,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:31,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:56:31,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290701778] [2022-11-18 20:56:31,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:31,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:56:31,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:31,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:56:31,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:56:31,856 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 128 [2022-11-18 20:56:31,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 125 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:31,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:31,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 128 [2022-11-18 20:56:31,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:33,710 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][81], [136#(= |#race~stopSales~0| 0), 140#true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 66#salethreadENTRYtrue, salethreadThread3of3ForFork0NotInUse, Black: 134#true, 126#true]) [2022-11-18 20:56:33,710 INFO L383 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2022-11-18 20:56:33,710 INFO L386 tUnfolder$Statistics]: existing Event has 60 ancestors and is cut-off event [2022-11-18 20:56:33,711 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-18 20:56:33,711 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 20:56:33,908 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][118], [136#(= |#race~stopSales~0| 0), 42#L722-1true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:56:33,908 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-18 20:56:33,908 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-18 20:56:33,909 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-18 20:56:33,909 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-18 20:56:33,909 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][118], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 88#L722-2true, salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:56:33,909 INFO L383 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-11-18 20:56:33,909 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 20:56:33,910 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-18 20:56:33,910 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 20:56:33,940 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([547] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread2of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_14| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} OutVars{salethreadThread2of3ForFork0_thidvar0=v_salethreadThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_14|} AuxVars[] AssignedVars[][118], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 134#true, Black: 136#(= |#race~stopSales~0| 0), salethreadThread3of3ForFork0NotInUse, 126#true, 87#L721-3true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:56:33,940 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:56:33,941 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:56:33,941 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:56:33,941 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:56:34,142 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 134#true, Black: 136#(= |#race~stopSales~0| 0), salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:56:34,142 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:56:34,142 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-18 20:56:34,142 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 20:56:34,143 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:56:34,319 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 102#L722-2true, salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, Black: 134#true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:56:34,320 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-18 20:56:34,320 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-18 20:56:34,320 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 20:56:34,320 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 20:56:34,341 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [136#(= |#race~stopSales~0| 0), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 102#L722-2true, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:56:34,341 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-18 20:56:34,342 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-18 20:56:34,342 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-18 20:56:34,342 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-18 20:56:34,342 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-18 20:56:34,343 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] salethreadEXIT-->L750-7: Formula: (= v_salethreadThread1of3ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_12| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) InVars {salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} OutVars{salethreadThread1of3ForFork0_thidvar0=v_salethreadThread1of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_12|} AuxVars[] AssignedVars[][82], [136#(= |#race~stopSales~0| 0), 106#L722-1true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:56:34,343 INFO L383 tUnfolder$Statistics]: this new event has 98 ancestors and is cut-off event [2022-11-18 20:56:34,343 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-18 20:56:34,343 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-11-18 20:56:34,343 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 20:56:34,799 INFO L130 PetriNetUnfolder]: 4573/16387 cut-off events. [2022-11-18 20:56:34,799 INFO L131 PetriNetUnfolder]: For 6386/11701 co-relation queries the response was YES. [2022-11-18 20:56:34,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27144 conditions, 16387 events. 4573/16387 cut-off events. For 6386/11701 co-relation queries the response was YES. Maximal size of possible extension queue 838. Compared 201725 event pairs, 1391 based on Foata normal form. 3/13976 useless extension candidates. Maximal degree in co-relation 27135. Up to 4987 conditions per place. [2022-11-18 20:56:34,968 INFO L137 encePairwiseOnDemand]: 113/128 looper letters, 41 selfloop transitions, 11 changer transitions 0/147 dead transitions. [2022-11-18 20:56:34,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 147 transitions, 535 flow [2022-11-18 20:56:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:56:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:56:34,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions. [2022-11-18 20:56:34,971 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8177083333333334 [2022-11-18 20:56:34,971 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 314 transitions. [2022-11-18 20:56:34,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 314 transitions. [2022-11-18 20:56:34,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:34,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 314 transitions. [2022-11-18 20:56:34,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:34,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:34,976 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:34,977 INFO L175 Difference]: Start difference. First operand has 120 places, 125 transitions, 348 flow. Second operand 3 states and 314 transitions. [2022-11-18 20:56:34,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 147 transitions, 535 flow [2022-11-18 20:56:34,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 147 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:56:34,994 INFO L231 Difference]: Finished difference. Result has 122 places, 136 transitions, 426 flow [2022-11-18 20:56:34,995 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=122, PETRI_TRANSITIONS=136} [2022-11-18 20:56:34,997 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -1 predicate places. [2022-11-18 20:56:34,997 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 136 transitions, 426 flow [2022-11-18 20:56:34,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:34,998 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:34,998 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:34,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:56:34,999 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:56:34,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:35,000 INFO L85 PathProgramCache]: Analyzing trace with hash 469144953, now seen corresponding path program 1 times [2022-11-18 20:56:35,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:35,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756435815] [2022-11-18 20:56:35,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:35,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:35,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:35,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:35,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756435815] [2022-11-18 20:56:35,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756435815] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:56:35,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143930428] [2022-11-18 20:56:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:35,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:56:35,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:56:35,154 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:56:35,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:56:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:35,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:56:35,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:56:35,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:35,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:56:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:35,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143930428] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:56:35,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:56:35,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:56:35,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022136705] [2022-11-18 20:56:35,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:56:35,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:56:35,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:35,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:56:35,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:56:35,386 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 128 [2022-11-18 20:56:35,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 136 transitions, 426 flow. Second operand has 10 states, 10 states have (on average 94.6) internal successors, (946), 10 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:35,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:35,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 128 [2022-11-18 20:56:35,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:39,286 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([505] L728-->L721-3: Formula: (= (+ v_salethreadThread2of3ForFork0_~_numberOfSeatsSold~0_7 1) v_~numberOfSeatsSold~0_14) InVars {salethreadThread2of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread2of3ForFork0_~_numberOfSeatsSold~0_7} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_25|, salethreadThread2of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread2of3ForFork0_~_numberOfSeatsSold~0_7, salethreadThread2of3ForFork0_#t~nondet2=|v_salethreadThread2of3ForFork0_#t~nondet2_3|, ~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_14} AuxVars[] AssignedVars[~numberOfSeatsSold~0, #race~numberOfSeatsSold~0, salethreadThread2of3ForFork0_#t~nondet2][108], [146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), 140#true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true]) [2022-11-18 20:56:39,286 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:56:39,287 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:56:39,287 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:56:39,287 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:56:39,287 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([503] L724-->L721-3: Formula: (= v_~stopSales~0_20 1) InVars {} OutVars{salethreadThread2of3ForFork0_#t~nondet1=|v_salethreadThread2of3ForFork0_#t~nondet1_3|, ~stopSales~0=v_~stopSales~0_20, #race~stopSales~0=|v_#race~stopSales~0_24|} AuxVars[] AssignedVars[~stopSales~0, #race~stopSales~0, salethreadThread2of3ForFork0_#t~nondet1][106], [Black: 140#true, 146#true, 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, Black: 136#(= |#race~stopSales~0| 0), salethreadThread3of3ForFork0NotInUse, 97#L721-3true, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:56:39,288 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:56:39,288 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:56:39,288 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:56:39,288 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:56:39,366 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([448] L749-6-->L752: Formula: (= |v_#race~numberOfSeatsSold~0_10| 0) InVars {} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_10|} AuxVars[] AssignedVars[#race~numberOfSeatsSold~0][135], [Black: 140#true, 146#true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, 102#L722-2true, 56#L752true, salethreadThread2of3ForFork0InUse, Black: 134#true, salethreadThread3of3ForFork0NotInUse, 126#true, 142#(= |#race~numberOfSeatsSold~0| 0)]) [2022-11-18 20:56:39,366 INFO L383 tUnfolder$Statistics]: this new event has 105 ancestors and is cut-off event [2022-11-18 20:56:39,366 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-18 20:56:39,366 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 20:56:39,366 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 20:56:39,466 INFO L130 PetriNetUnfolder]: 6176/24951 cut-off events. [2022-11-18 20:56:39,466 INFO L131 PetriNetUnfolder]: For 11078/13988 co-relation queries the response was YES. [2022-11-18 20:56:39,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43873 conditions, 24951 events. 6176/24951 cut-off events. For 11078/13988 co-relation queries the response was YES. Maximal size of possible extension queue 1013. Compared 336576 event pairs, 1529 based on Foata normal form. 160/21065 useless extension candidates. Maximal degree in co-relation 43863. Up to 3631 conditions per place. [2022-11-18 20:56:39,695 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 73 selfloop transitions, 9 changer transitions 0/188 dead transitions. [2022-11-18 20:56:39,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 188 transitions, 804 flow [2022-11-18 20:56:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:56:39,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:56:39,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 888 transitions. [2022-11-18 20:56:39,700 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2022-11-18 20:56:39,700 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 888 transitions. [2022-11-18 20:56:39,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 888 transitions. [2022-11-18 20:56:39,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:39,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 888 transitions. [2022-11-18 20:56:39,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 98.66666666666667) internal successors, (888), 9 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:39,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:39,708 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:39,708 INFO L175 Difference]: Start difference. First operand has 122 places, 136 transitions, 426 flow. Second operand 9 states and 888 transitions. [2022-11-18 20:56:39,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 188 transitions, 804 flow [2022-11-18 20:56:39,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 188 transitions, 758 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:56:39,834 INFO L231 Difference]: Finished difference. Result has 131 places, 142 transitions, 454 flow [2022-11-18 20:56:39,835 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=454, PETRI_PLACES=131, PETRI_TRANSITIONS=142} [2022-11-18 20:56:39,836 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 8 predicate places. [2022-11-18 20:56:39,836 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 142 transitions, 454 flow [2022-11-18 20:56:39,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 94.6) internal successors, (946), 10 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:39,837 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:39,837 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:39,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:56:40,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:56:40,046 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:56:40,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:40,047 INFO L85 PathProgramCache]: Analyzing trace with hash -593229992, now seen corresponding path program 1 times [2022-11-18 20:56:40,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:40,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288416535] [2022-11-18 20:56:40,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:40,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:40,142 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:56:40,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:40,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288416535] [2022-11-18 20:56:40,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288416535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:40,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:40,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:56:40,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827037009] [2022-11-18 20:56:40,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:40,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:56:40,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:40,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:56:40,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:56:40,145 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-18 20:56:40,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 142 transitions, 454 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:40,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:40,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-18 20:56:40,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:42,183 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([541] L728-->L721-3: Formula: (= (+ v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7 1) v_~numberOfSeatsSold~0_14) InVars {salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_25|, ~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_14, salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7, salethreadThread1of3ForFork0_#t~nondet2=|v_salethreadThread1of3ForFork0_#t~nondet2_3|} AuxVars[] AssignedVars[~numberOfSeatsSold~0, #race~numberOfSeatsSold~0, salethreadThread1of3ForFork0_#t~nondet2][45], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 5), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 87#L721-3true, 5#L722-2true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0InUse, 126#true]) [2022-11-18 20:56:42,183 INFO L383 tUnfolder$Statistics]: this new event has 90 ancestors and is cut-off event [2022-11-18 20:56:42,183 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2022-11-18 20:56:42,183 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-11-18 20:56:42,183 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-11-18 20:56:42,183 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([541] L728-->L721-3: Formula: (= (+ v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7 1) v_~numberOfSeatsSold~0_14) InVars {salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7} OutVars{#race~numberOfSeatsSold~0=|v_#race~numberOfSeatsSold~0_25|, ~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_14, salethreadThread1of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread1of3ForFork0_~_numberOfSeatsSold~0_7, salethreadThread1of3ForFork0_#t~nondet2=|v_salethreadThread1of3ForFork0_#t~nondet2_3|} AuxVars[] AssignedVars[~numberOfSeatsSold~0, #race~numberOfSeatsSold~0, salethreadThread1of3ForFork0_#t~nondet2][45], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 5), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 87#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, 76#L722-1true, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0InUse, 126#true]) [2022-11-18 20:56:42,183 INFO L383 tUnfolder$Statistics]: this new event has 89 ancestors and is cut-off event [2022-11-18 20:56:42,183 INFO L386 tUnfolder$Statistics]: existing Event has 89 ancestors and is cut-off event [2022-11-18 20:56:42,184 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-18 20:56:42,184 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-18 20:56:42,188 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([517] L722-2-->L723: Formula: (= v_salethreadThread3of3ForFork0_~_numberOfSeatsSold~0_1 v_~numberOfSeatsSold~0_1) InVars {~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_1} OutVars{~numberOfSeatsSold~0=v_~numberOfSeatsSold~0_1, salethreadThread3of3ForFork0_~_numberOfSeatsSold~0=v_salethreadThread3of3ForFork0_~_numberOfSeatsSold~0_1} AuxVars[] AssignedVars[salethreadThread3of3ForFork0_~_numberOfSeatsSold~0][136], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 5), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 140#true, 146#true, 40#L723true, salethreadThread1of3ForFork0InUse, 21#L728true, salethreadThread2of3ForFork0NotInUse, salethreadThread3of3ForFork0InUse, 126#true]) [2022-11-18 20:56:42,189 INFO L383 tUnfolder$Statistics]: this new event has 85 ancestors and is not cut-off event [2022-11-18 20:56:42,189 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is not cut-off event [2022-11-18 20:56:42,189 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is not cut-off event [2022-11-18 20:56:42,189 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is not cut-off event [2022-11-18 20:56:42,319 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 5), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 97#L721-3true, 87#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0InUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:56:42,319 INFO L383 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2022-11-18 20:56:42,319 INFO L386 tUnfolder$Statistics]: existing Event has 88 ancestors and is cut-off event [2022-11-18 20:56:42,319 INFO L386 tUnfolder$Statistics]: existing Event has 88 ancestors and is cut-off event [2022-11-18 20:56:42,319 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-18 20:56:43,417 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 5), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 87#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:56:43,418 INFO L383 tUnfolder$Statistics]: this new event has 97 ancestors and is cut-off event [2022-11-18 20:56:43,418 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:56:43,418 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:56:43,418 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:56:43,428 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][175], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 5), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 140#true, 146#true, salethreadThread1of3ForFork0InUse, salethreadThread2of3ForFork0NotInUse, 21#L728true, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:56:43,428 INFO L383 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2022-11-18 20:56:43,428 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-18 20:56:43,428 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-18 20:56:43,428 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-18 20:56:43,480 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 5), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 134#true, 97#L721-3true, 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:56:43,480 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:56:43,480 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-18 20:56:43,481 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:56:43,481 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:56:44,063 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][177], [146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), Black: 306#(< |ULTIMATE.start_main_~i~0#1| 5), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0NotInUse, 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), salethreadThread3of3ForFork0NotInUse, Black: 134#true, 126#true]) [2022-11-18 20:56:44,063 INFO L383 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-11-18 20:56:44,063 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:56:44,063 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:56:44,063 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:56:44,150 INFO L130 PetriNetUnfolder]: 7626/31979 cut-off events. [2022-11-18 20:56:44,150 INFO L131 PetriNetUnfolder]: For 7994/14839 co-relation queries the response was YES. [2022-11-18 20:56:44,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51791 conditions, 31979 events. 7626/31979 cut-off events. For 7994/14839 co-relation queries the response was YES. Maximal size of possible extension queue 1395. Compared 455850 event pairs, 2221 based on Foata normal form. 112/27121 useless extension candidates. Maximal degree in co-relation 51779. Up to 4756 conditions per place. [2022-11-18 20:56:44,345 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 69 selfloop transitions, 7 changer transitions 0/190 dead transitions. [2022-11-18 20:56:44,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 190 transitions, 803 flow [2022-11-18 20:56:44,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:56:44,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:56:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 528 transitions. [2022-11-18 20:56:44,347 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825 [2022-11-18 20:56:44,347 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 528 transitions. [2022-11-18 20:56:44,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 528 transitions. [2022-11-18 20:56:44,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:44,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 528 transitions. [2022-11-18 20:56:44,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.6) internal successors, (528), 5 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:44,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 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) [2022-11-18 20:56:44,351 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 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) [2022-11-18 20:56:44,351 INFO L175 Difference]: Start difference. First operand has 131 places, 142 transitions, 454 flow. Second operand 5 states and 528 transitions. [2022-11-18 20:56:44,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 190 transitions, 803 flow [2022-11-18 20:56:44,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 190 transitions, 797 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-18 20:56:44,359 INFO L231 Difference]: Finished difference. Result has 137 places, 148 transitions, 511 flow [2022-11-18 20:56:44,360 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=511, PETRI_PLACES=137, PETRI_TRANSITIONS=148} [2022-11-18 20:56:44,361 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 14 predicate places. [2022-11-18 20:56:44,361 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 148 transitions, 511 flow [2022-11-18 20:56:44,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:44,362 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:44,362 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:44,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:56:44,363 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:56:44,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:44,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1860258400, now seen corresponding path program 1 times [2022-11-18 20:56:44,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:44,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903138628] [2022-11-18 20:56:44,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:44,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:44,498 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:56:44,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:44,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903138628] [2022-11-18 20:56:44,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903138628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:44,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:44,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:56:44,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281488134] [2022-11-18 20:56:44,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:44,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:56:44,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:44,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:56:44,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:56:44,501 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 128 [2022-11-18 20:56:44,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 148 transitions, 511 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:44,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:44,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 128 [2022-11-18 20:56:44,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:47,762 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][172], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 5), 433#(= salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 0), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), 97#L721-3true, Black: 422#(= ~numberOfSeatsSold~0 0), 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), 420#true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0InUse, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:56:47,763 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-18 20:56:47,763 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:56:47,763 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:56:47,763 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-18 20:56:48,672 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([548] salethreadEXIT-->L750-7: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem10#1_16| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_salethreadThread3of3ForFork0_thidvar0_4) InVars {salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} OutVars{salethreadThread3of3ForFork0_thidvar0=v_salethreadThread3of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem10#1=|v_ULTIMATE.start_main_#t~mem10#1_16|} AuxVars[] AssignedVars[][172], [Black: 306#(< |ULTIMATE.start_main_~i~0#1| 5), 433#(= salethreadThread2of3ForFork0_~_numberOfSeatsSold~0 0), Black: 150#(<= |ULTIMATE.start_main_~i~0#1| 1), 33#L750-7true, Black: 131#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 425#(and (= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0) (= ~numberOfSeatsSold~0 0)), Black: 134#true, Black: 423#(= salethreadThread1of3ForFork0_~_numberOfSeatsSold~0 0), Black: 422#(= ~numberOfSeatsSold~0 0), 146#true, Black: 142#(= |#race~numberOfSeatsSold~0| 0), 420#true, salethreadThread1of3ForFork0NotInUse, salethreadThread2of3ForFork0NotInUse, salethreadThread3of3ForFork0NotInUse, 126#true]) [2022-11-18 20:56:48,672 INFO L383 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-11-18 20:56:48,672 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:56:48,672 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:56:48,672 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:56:48,757 INFO L130 PetriNetUnfolder]: 7497/33079 cut-off events. [2022-11-18 20:56:48,757 INFO L131 PetriNetUnfolder]: For 16027/21821 co-relation queries the response was YES. [2022-11-18 20:56:48,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58016 conditions, 33079 events. 7497/33079 cut-off events. For 16027/21821 co-relation queries the response was YES. Maximal size of possible extension queue 1427. Compared 479988 event pairs, 2293 based on Foata normal form. 208/28502 useless extension candidates. Maximal degree in co-relation 58000. Up to 4780 conditions per place. [2022-11-18 20:56:48,984 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 62 selfloop transitions, 10 changer transitions 0/186 dead transitions. [2022-11-18 20:56:48,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 186 transitions, 838 flow [2022-11-18 20:56:48,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:56:48,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:56:48,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 525 transitions. [2022-11-18 20:56:48,986 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8203125 [2022-11-18 20:56:48,986 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 525 transitions. [2022-11-18 20:56:48,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 525 transitions. [2022-11-18 20:56:48,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:48,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 525 transitions. [2022-11-18 20:56:48,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:48,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 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) [2022-11-18 20:56:48,991 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 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) [2022-11-18 20:56:48,991 INFO L175 Difference]: Start difference. First operand has 137 places, 148 transitions, 511 flow. Second operand 5 states and 525 transitions. [2022-11-18 20:56:48,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 186 transitions, 838 flow [2022-11-18 20:56:49,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 186 transitions, 834 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:56:49,035 INFO L231 Difference]: Finished difference. Result has 143 places, 152 transitions, 574 flow [2022-11-18 20:56:49,036 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=574, PETRI_PLACES=143, PETRI_TRANSITIONS=152} [2022-11-18 20:56:49,037 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 20 predicate places. [2022-11-18 20:56:49,037 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 152 transitions, 574 flow [2022-11-18 20:56:49,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:56:49,038 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:49,038 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:49,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:56:49,038 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-18 20:56:49,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:49,039 INFO L85 PathProgramCache]: Analyzing trace with hash -871650852, now seen corresponding path program 1 times [2022-11-18 20:56:49,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:49,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172761153] [2022-11-18 20:56:49,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:49,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:49,055 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:56:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:56:49,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:56:49,088 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:56:49,089 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2022-11-18 20:56:49,089 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-11-18 20:56:49,089 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-11-18 20:56:49,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-11-18 20:56:49,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-11-18 20:56:49,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-11-18 20:56:49,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-11-18 20:56:49,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-11-18 20:56:49,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-11-18 20:56:49,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-11-18 20:56:49,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 22 remaining) [2022-11-18 20:56:49,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-11-18 20:56:49,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-11-18 20:56:49,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-11-18 20:56:49,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-11-18 20:56:49,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-11-18 20:56:49,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-11-18 20:56:49,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-11-18 20:56:49,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-11-18 20:56:49,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-11-18 20:56:49,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-11-18 20:56:49,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-11-18 20:56:49,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:56:49,093 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:49,099 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2022-11-18 20:56:49,100 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:56:49,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:56:49 BasicIcfg [2022-11-18 20:56:49,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:56:49,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:56:49,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:56:49,185 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:56:49,186 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:25" (3/4) ... [2022-11-18 20:56:49,189 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:56:49,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:56:49,190 INFO L158 Benchmark]: Toolchain (without parser) took 24581.04ms. Allocated memory was 115.3MB in the beginning and 7.8GB in the end (delta: 7.7GB). Free memory was 74.4MB in the beginning and 6.9GB in the end (delta: -6.8GB). Peak memory consumption was 862.6MB. Max. memory is 16.1GB. [2022-11-18 20:56:49,191 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 115.3MB. Free memory was 92.0MB in the beginning and 92.0MB in the end (delta: 87.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:56:49,192 INFO L158 Benchmark]: CACSL2BoogieTranslator took 624.14ms. Allocated memory is still 115.3MB. Free memory was 74.3MB in the beginning and 80.5MB in the end (delta: -6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:56:49,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.00ms. Allocated memory is still 115.3MB. Free memory was 80.5MB in the beginning and 78.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:56:49,192 INFO L158 Benchmark]: Boogie Preprocessor took 67.18ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 76.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:56:49,193 INFO L158 Benchmark]: RCFGBuilder took 609.97ms. Allocated memory is still 115.3MB. Free memory was 76.7MB in the beginning and 60.2MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 20:56:49,193 INFO L158 Benchmark]: TraceAbstraction took 23182.09ms. Allocated memory was 115.3MB in the beginning and 7.8GB in the end (delta: 7.7GB). Free memory was 59.5MB in the beginning and 6.9GB in the end (delta: -6.9GB). Peak memory consumption was 852.1MB. Max. memory is 16.1GB. [2022-11-18 20:56:49,194 INFO L158 Benchmark]: Witness Printer took 5.21ms. Allocated memory is still 7.8GB. Free memory was 6.9GB in the beginning and 6.9GB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:56:49,197 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 115.3MB. Free memory was 92.0MB in the beginning and 92.0MB in the end (delta: 87.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 624.14ms. Allocated memory is still 115.3MB. Free memory was 74.3MB in the beginning and 80.5MB in the end (delta: -6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.00ms. Allocated memory is still 115.3MB. Free memory was 80.5MB in the beginning and 78.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.18ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 76.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 609.97ms. Allocated memory is still 115.3MB. Free memory was 76.7MB in the beginning and 60.2MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 23182.09ms. Allocated memory was 115.3MB in the beginning and 7.8GB in the end (delta: 7.7GB). Free memory was 59.5MB in the beginning and 6.9GB in the end (delta: -6.9GB). Peak memory consumption was 852.1MB. Max. memory is 16.1GB. * Witness Printer took 5.21ms. Allocated memory is still 7.8GB. Free memory was 6.9GB in the beginning and 6.9GB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 722]: Data race detected Data race detected The following path leads to a data race: [L718] 0 int stopSales; VAL [stopSales=0] [L719] 0 int numOfTickets; VAL [numOfTickets=0, stopSales=0] [L717] 0 int numberOfSeatsSold; VAL [numberOfSeatsSold=0, numOfTickets=0, stopSales=0] [L736] 0 pthread_t salethreads[5]; VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, numberOfSeatsSold=0, numOfTickets=0, salethreads={3:0}, stopSales=0] [L738] 0 numOfTickets = 5 VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, numberOfSeatsSold=0, numOfTickets=5, salethreads={3:0}, stopSales=0] [L741] 0 numberOfSeatsSold = 0 VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, numberOfSeatsSold=0, numOfTickets=5, salethreads={3:0}, stopSales=0] [L744] 0 stopSales = 0 VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, numberOfSeatsSold=0, numOfTickets=5, salethreads={3:0}, stopSales=0] [L746] 0 int i = 0; VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, i=0, numberOfSeatsSold=0, numOfTickets=5, salethreads={3:0}, stopSales=0] [L746] COND TRUE 0 i < 5 VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, i=0, numberOfSeatsSold=0, numOfTickets=5, salethreads={3:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=49, arg={0:0}, argc=49, argv={50:51}, argv={50:51}, i=0, numberOfSeatsSold=0, numOfTickets=5, pthread_create(&salethreads[i], 0, salethread, ((void *)0))=-1, salethreads={3:0}, stopSales=0] [L721] 1 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=5, stopSales=0] [L746] 0 i++ VAL [\old(argc)=49, arg={0:0}, arg={0:0}, argc=49, argv={50:51}, argv={50:51}, i=1, numberOfSeatsSold=0, numOfTickets=5, salethreads={3:0}, stopSales=0] [L746] COND TRUE 0 i < 5 VAL [\old(argc)=49, arg={0:0}, arg={0:0}, argc=49, argv={50:51}, argv={50:51}, i=1, numberOfSeatsSold=0, numOfTickets=5, salethreads={3:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=49, arg={0:0}, arg={0:0}, argc=49, argv={50:51}, argv={50:51}, i=1, numberOfSeatsSold=0, numOfTickets=5, pthread_create(&salethreads[i], 0, salethread, ((void *)0))=0, salethreads={3:0}, stopSales=0] [L721] 2 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=5, stopSales=0] [L721] COND TRUE 2 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=5, stopSales=0] [L721] COND TRUE 1 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=5, stopSales=0] [L722] 1 int _numberOfSeatsSold = numberOfSeatsSold; VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=5, stopSales=0] [L723] COND FALSE 1 !(_numberOfSeatsSold >= (5 - (((5 / 10) == 0) ? 1 : (5 / 10)))) VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=5, stopSales=0] [L729] 1 numberOfSeatsSold = _numberOfSeatsSold + 1 VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=1, numOfTickets=5, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=1, numOfTickets=5, stopSales=0] Now there is a data race on ~numberOfSeatsSold~0 between C: numberOfSeatsSold = _numberOfSeatsSold + 1 [729] and C: int _numberOfSeatsSold = numberOfSeatsSold; [722] - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 752]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: 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 3 procedures, 100 locations, 14 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: 1.6s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 0.3s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 117 locations, 18 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: 2.4s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 207 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 21 mSDtfsCounter, 207 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=4, InterpolantAutomatonStates: 20, 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, 0.5s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 311 SizeOfPredicates, 2 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/3 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 134 locations, 22 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: 18.8s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 171 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 414 IncrementalHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 33 mSDtfsCounter, 414 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=574occurred in iteration=7, InterpolantAutomatonStates: 30, 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, 0.5s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 519 SizeOfPredicates, 2 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 10/13 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! [2022-11-18 20:56:49,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e4a07a-2fae-4042-991a-a46e74e3a022/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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