./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-figure3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-figure3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN --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 8978d351a1e877bd44e157215d417b40c01c7c886849af3efe046b60ddaacc95 --- 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-6b4ec56 [2022-11-20 10:37:26,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:37:26,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:37:26,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:37:26,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:37:26,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:37:26,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:37:26,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:37:26,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:37:26,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:37:26,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:37:26,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:37:26,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:37:26,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:37:26,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:37:26,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:37:26,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:37:26,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:37:26,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:37:26,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:37:26,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:37:26,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:37:26,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:37:26,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:37:26,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:37:26,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:37:26,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:37:26,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:37:26,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:37:26,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:37:26,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:37:26,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:37:26,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:37:26,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:37:26,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:37:26,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:37:26,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:37:26,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:37:26,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:37:26,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:37:26,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:37:26,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:37:26,280 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:37:26,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:37:26,282 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:37:26,282 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:37:26,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:37:26,283 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:37:26,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:37:26,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:37:26,284 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:37:26,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:37:26,286 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:37:26,286 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:37:26,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:37:26,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:37:26,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:37:26,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:37:26,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:37:26,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:37:26,287 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:37:26,288 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:37:26,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:37:26,288 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:37:26,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:37:26,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:37:26,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:37:26,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:37:26,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:37:26,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:37:26,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:37:26,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:37:26,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:37:26,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:37:26,291 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:37:26,291 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:37:26,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:37:26,292 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_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8978d351a1e877bd44e157215d417b40c01c7c886849af3efe046b60ddaacc95 [2022-11-20 10:37:26,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:37:26,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:37:26,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:37:26,580 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:37:26,581 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:37:26,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/popl20-figure3.wvr.c [2022-11-20 10:37:29,704 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:37:29,897 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:37:29,898 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/sv-benchmarks/c/weaver/popl20-figure3.wvr.c [2022-11-20 10:37:29,905 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/data/0bbff59c8/53e532a9cbc84cbc89037f5ba9422c68/FLAG8f55a3025 [2022-11-20 10:37:29,921 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/data/0bbff59c8/53e532a9cbc84cbc89037f5ba9422c68 [2022-11-20 10:37:29,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:37:29,925 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:37:29,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:37:29,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:37:29,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:37:29,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:37:29" (1/1) ... [2022-11-20 10:37:29,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23ef0187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:29, skipping insertion in model container [2022-11-20 10:37:29,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:37:29" (1/1) ... [2022-11-20 10:37:29,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:37:29,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:37:30,142 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/sv-benchmarks/c/weaver/popl20-figure3.wvr.c[2121,2134] [2022-11-20 10:37:30,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:37:30,153 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:37:30,178 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/sv-benchmarks/c/weaver/popl20-figure3.wvr.c[2121,2134] [2022-11-20 10:37:30,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:37:30,193 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:37:30,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:30 WrapperNode [2022-11-20 10:37:30,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:37:30,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:37:30,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:37:30,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:37:30,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:30" (1/1) ... [2022-11-20 10:37:30,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:30" (1/1) ... [2022-11-20 10:37:30,232 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 106 [2022-11-20 10:37:30,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:37:30,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:37:30,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:37:30,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:37:30,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:30" (1/1) ... [2022-11-20 10:37:30,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:30" (1/1) ... [2022-11-20 10:37:30,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:30" (1/1) ... [2022-11-20 10:37:30,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:30" (1/1) ... [2022-11-20 10:37:30,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:30" (1/1) ... [2022-11-20 10:37:30,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:30" (1/1) ... [2022-11-20 10:37:30,259 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:30" (1/1) ... [2022-11-20 10:37:30,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:30" (1/1) ... [2022-11-20 10:37:30,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:37:30,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:37:30,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:37:30,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:37:30,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:30" (1/1) ... [2022-11-20 10:37:30,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:37:30,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:37:30,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:37:30,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:37:30,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:37:30,373 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 10:37:30,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 10:37:30,373 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 10:37:30,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 10:37:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:37:30,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:37:30,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:37:30,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:37:30,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:37:30,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:37:30,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:37:30,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:37:30,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:37:30,379 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:37:30,512 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:37:30,514 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:37:30,965 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:37:31,090 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:37:31,090 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 10:37:31,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:31 BoogieIcfgContainer [2022-11-20 10:37:31,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:37:31,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:37:31,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:37:31,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:37:31,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:37:29" (1/3) ... [2022-11-20 10:37:31,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608cdcd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:37:31, skipping insertion in model container [2022-11-20 10:37:31,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:30" (2/3) ... [2022-11-20 10:37:31,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608cdcd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:37:31, skipping insertion in model container [2022-11-20 10:37:31,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:31" (3/3) ... [2022-11-20 10:37:31,103 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure3.wvr.c [2022-11-20 10:37:31,113 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:37:31,124 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:37:31,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-11-20 10:37:31,125 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:37:31,187 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 10:37:31,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 127 transitions, 270 flow [2022-11-20 10:37:31,297 INFO L130 PetriNetUnfolder]: 6/125 cut-off events. [2022-11-20 10:37:31,298 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 10:37:31,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 125 events. 6/125 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 112 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2022-11-20 10:37:31,304 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 127 transitions, 270 flow [2022-11-20 10:37:31,309 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 107 transitions, 226 flow [2022-11-20 10:37:31,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:37:31,327 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;@1b565210, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:37:31,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-20 10:37:31,335 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-11-20 10:37:31,335 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:37:31,336 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:31,336 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] [2022-11-20 10:37:31,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 10:37:31,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:31,343 INFO L85 PathProgramCache]: Analyzing trace with hash -911037931, now seen corresponding path program 1 times [2022-11-20 10:37:31,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:31,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36644651] [2022-11-20 10:37:31,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:31,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:31,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:31,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:31,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36644651] [2022-11-20 10:37:31,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36644651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:31,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:31,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:37:31,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626952404] [2022-11-20 10:37:31,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:31,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:37:31,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:31,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:37:31,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:37:31,678 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 127 [2022-11-20 10:37:31,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 107 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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) [2022-11-20 10:37:31,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:31,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 127 [2022-11-20 10:37:31,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:31,859 INFO L130 PetriNetUnfolder]: 36/211 cut-off events. [2022-11-20 10:37:31,859 INFO L131 PetriNetUnfolder]: For 46/92 co-relation queries the response was YES. [2022-11-20 10:37:31,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 211 events. 36/211 cut-off events. For 46/92 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 704 event pairs, 24 based on Foata normal form. 1/176 useless extension candidates. Maximal degree in co-relation 206. Up to 74 conditions per place. [2022-11-20 10:37:31,865 INFO L137 encePairwiseOnDemand]: 114/127 looper letters, 15 selfloop transitions, 2 changer transitions 1/96 dead transitions. [2022-11-20 10:37:31,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 96 transitions, 238 flow [2022-11-20 10:37:31,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:37:31,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:37:31,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 319 transitions. [2022-11-20 10:37:31,888 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8372703412073491 [2022-11-20 10:37:31,889 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 319 transitions. [2022-11-20 10:37:31,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 319 transitions. [2022-11-20 10:37:31,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:31,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 319 transitions. [2022-11-20 10:37:31,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2022-11-20 10:37:31,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-20 10:37:31,911 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-20 10:37:31,913 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 226 flow. Second operand 3 states and 319 transitions. [2022-11-20 10:37:31,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 96 transitions, 238 flow [2022-11-20 10:37:31,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 96 transitions, 230 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:37:31,924 INFO L231 Difference]: Finished difference. Result has 99 places, 95 transitions, 198 flow [2022-11-20 10:37:31,926 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=99, PETRI_TRANSITIONS=95} [2022-11-20 10:37:31,933 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -10 predicate places. [2022-11-20 10:37:31,934 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 95 transitions, 198 flow [2022-11-20 10:37:31,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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) [2022-11-20 10:37:31,934 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:31,934 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] [2022-11-20 10:37:31,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:37:31,935 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 10:37:31,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:31,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1280551480, now seen corresponding path program 1 times [2022-11-20 10:37:31,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:31,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99518361] [2022-11-20 10:37:31,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:31,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:32,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:32,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:32,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99518361] [2022-11-20 10:37:32,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99518361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:32,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:32,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:37:32,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932266033] [2022-11-20 10:37:32,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:32,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:37:32,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:32,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:37:32,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:37:32,011 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 127 [2022-11-20 10:37:32,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 95 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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) [2022-11-20 10:37:32,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:32,012 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 127 [2022-11-20 10:37:32,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:32,061 INFO L130 PetriNetUnfolder]: 11/136 cut-off events. [2022-11-20 10:37:32,061 INFO L131 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2022-11-20 10:37:32,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 136 events. 11/136 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 215 event pairs, 3 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 141. Up to 25 conditions per place. [2022-11-20 10:37:32,063 INFO L137 encePairwiseOnDemand]: 124/127 looper letters, 12 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2022-11-20 10:37:32,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 94 transitions, 224 flow [2022-11-20 10:37:32,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:37:32,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:37:32,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 315 transitions. [2022-11-20 10:37:32,066 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8267716535433071 [2022-11-20 10:37:32,066 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 315 transitions. [2022-11-20 10:37:32,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 315 transitions. [2022-11-20 10:37:32,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:32,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 315 transitions. [2022-11-20 10:37:32,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2022-11-20 10:37:32,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-20 10:37:32,070 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-20 10:37:32,070 INFO L175 Difference]: Start difference. First operand has 99 places, 95 transitions, 198 flow. Second operand 3 states and 315 transitions. [2022-11-20 10:37:32,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 94 transitions, 224 flow [2022-11-20 10:37:32,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 94 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:37:32,073 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 196 flow [2022-11-20 10:37:32,074 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2022-11-20 10:37:32,075 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -12 predicate places. [2022-11-20 10:37:32,075 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 196 flow [2022-11-20 10:37:32,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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) [2022-11-20 10:37:32,076 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:32,076 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] [2022-11-20 10:37:32,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:37:32,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 10:37:32,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:32,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1243421898, now seen corresponding path program 1 times [2022-11-20 10:37:32,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:32,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303727277] [2022-11-20 10:37:32,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:32,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:32,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:32,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:32,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303727277] [2022-11-20 10:37:32,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303727277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:32,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:32,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:37:32,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555319804] [2022-11-20 10:37:32,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:32,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:37:32,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:32,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:37:32,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:37:32,151 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 127 [2022-11-20 10:37:32,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2022-11-20 10:37:32,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:32,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 127 [2022-11-20 10:37:32,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:32,203 INFO L130 PetriNetUnfolder]: 11/135 cut-off events. [2022-11-20 10:37:32,203 INFO L131 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2022-11-20 10:37:32,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 135 events. 11/135 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 221 event pairs, 3 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 129. Up to 20 conditions per place. [2022-11-20 10:37:32,206 INFO L137 encePairwiseOnDemand]: 125/127 looper letters, 9 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2022-11-20 10:37:32,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 93 transitions, 214 flow [2022-11-20 10:37:32,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:37:32,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:37:32,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2022-11-20 10:37:32,209 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8398950131233596 [2022-11-20 10:37:32,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 320 transitions. [2022-11-20 10:37:32,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 320 transitions. [2022-11-20 10:37:32,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:32,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 320 transitions. [2022-11-20 10:37:32,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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) [2022-11-20 10:37:32,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-20 10:37:32,215 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-20 10:37:32,215 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 196 flow. Second operand 3 states and 320 transitions. [2022-11-20 10:37:32,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 93 transitions, 214 flow [2022-11-20 10:37:32,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 93 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:37:32,221 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 192 flow [2022-11-20 10:37:32,221 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2022-11-20 10:37:32,224 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -13 predicate places. [2022-11-20 10:37:32,224 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 192 flow [2022-11-20 10:37:32,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2022-11-20 10:37:32,225 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:32,225 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:32,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:37:32,225 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 10:37:32,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:32,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1658378257, now seen corresponding path program 1 times [2022-11-20 10:37:32,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:32,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940339736] [2022-11-20 10:37:32,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:32,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:32,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:32,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:32,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940339736] [2022-11-20 10:37:32,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940339736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:32,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:32,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:37:32,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947727045] [2022-11-20 10:37:32,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:32,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:37:32,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:32,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:37:32,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:37:32,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 127 [2022-11-20 10:37:32,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2022-11-20 10:37:32,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:32,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 127 [2022-11-20 10:37:32,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:32,389 INFO L130 PetriNetUnfolder]: 25/166 cut-off events. [2022-11-20 10:37:32,389 INFO L131 PetriNetUnfolder]: For 5/19 co-relation queries the response was YES. [2022-11-20 10:37:32,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 166 events. 25/166 cut-off events. For 5/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 442 event pairs, 9 based on Foata normal form. 1/153 useless extension candidates. Maximal degree in co-relation 191. Up to 48 conditions per place. [2022-11-20 10:37:32,394 INFO L137 encePairwiseOnDemand]: 123/127 looper letters, 13 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2022-11-20 10:37:32,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 94 transitions, 225 flow [2022-11-20 10:37:32,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:37:32,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:37:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2022-11-20 10:37:32,397 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8320209973753281 [2022-11-20 10:37:32,397 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2022-11-20 10:37:32,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2022-11-20 10:37:32,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:32,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2022-11-20 10:37:32,403 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) [2022-11-20 10:37:32,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-20 10:37:32,406 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-20 10:37:32,406 INFO L175 Difference]: Start difference. First operand has 96 places, 93 transitions, 192 flow. Second operand 3 states and 317 transitions. [2022-11-20 10:37:32,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 94 transitions, 225 flow [2022-11-20 10:37:32,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 94 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:37:32,409 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 201 flow [2022-11-20 10:37:32,410 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2022-11-20 10:37:32,410 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -13 predicate places. [2022-11-20 10:37:32,411 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 201 flow [2022-11-20 10:37:32,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2022-11-20 10:37:32,411 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:32,411 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:32,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:37:32,412 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 10:37:32,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:32,412 INFO L85 PathProgramCache]: Analyzing trace with hash 675347450, now seen corresponding path program 1 times [2022-11-20 10:37:32,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:32,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627612786] [2022-11-20 10:37:32,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:32,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:32,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:32,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:32,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627612786] [2022-11-20 10:37:32,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627612786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:32,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:32,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:37:32,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806424422] [2022-11-20 10:37:32,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:32,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:37:32,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:32,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:37:32,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:37:32,980 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 127 [2022-11-20 10:37:32,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 201 flow. Second operand has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 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) [2022-11-20 10:37:32,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:32,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 127 [2022-11-20 10:37:32,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:33,162 INFO L130 PetriNetUnfolder]: 61/223 cut-off events. [2022-11-20 10:37:33,163 INFO L131 PetriNetUnfolder]: For 1/6 co-relation queries the response was YES. [2022-11-20 10:37:33,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 223 events. 61/223 cut-off events. For 1/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 814 event pairs, 8 based on Foata normal form. 4/209 useless extension candidates. Maximal degree in co-relation 318. Up to 47 conditions per place. [2022-11-20 10:37:33,165 INFO L137 encePairwiseOnDemand]: 122/127 looper letters, 25 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2022-11-20 10:37:33,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 100 transitions, 273 flow [2022-11-20 10:37:33,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:37:33,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:37:33,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 576 transitions. [2022-11-20 10:37:33,168 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7559055118110236 [2022-11-20 10:37:33,168 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 576 transitions. [2022-11-20 10:37:33,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 576 transitions. [2022-11-20 10:37:33,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:33,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 576 transitions. [2022-11-20 10:37:33,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.0) internal successors, (576), 6 states have internal predecessors, (576), 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) [2022-11-20 10:37:33,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-11-20 10:37:33,173 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-11-20 10:37:33,173 INFO L175 Difference]: Start difference. First operand has 96 places, 93 transitions, 201 flow. Second operand 6 states and 576 transitions. [2022-11-20 10:37:33,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 100 transitions, 273 flow [2022-11-20 10:37:33,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 100 transitions, 273 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:37:33,176 INFO L231 Difference]: Finished difference. Result has 100 places, 92 transitions, 207 flow [2022-11-20 10:37:33,177 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=207, PETRI_PLACES=100, PETRI_TRANSITIONS=92} [2022-11-20 10:37:33,178 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -9 predicate places. [2022-11-20 10:37:33,178 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 92 transitions, 207 flow [2022-11-20 10:37:33,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 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) [2022-11-20 10:37:33,179 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:33,179 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:33,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:37:33,180 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 10:37:33,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1605391580, now seen corresponding path program 1 times [2022-11-20 10:37:33,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:33,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060029639] [2022-11-20 10:37:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:33,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:33,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:33,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:33,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060029639] [2022-11-20 10:37:33,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060029639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:33,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:33,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:37:33,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686470835] [2022-11-20 10:37:33,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:33,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:37:33,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:33,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:37:33,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:37:33,655 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 127 [2022-11-20 10:37:33,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 92 transitions, 207 flow. Second operand has 6 states, 6 states have (on average 93.83333333333333) internal successors, (563), 6 states have internal predecessors, (563), 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) [2022-11-20 10:37:33,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:33,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 127 [2022-11-20 10:37:33,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:33,735 INFO L130 PetriNetUnfolder]: 50/201 cut-off events. [2022-11-20 10:37:33,735 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 10:37:33,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 201 events. 50/201 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 705 event pairs, 30 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 299. Up to 79 conditions per place. [2022-11-20 10:37:33,737 INFO L137 encePairwiseOnDemand]: 122/127 looper letters, 20 selfloop transitions, 4 changer transitions 0/95 dead transitions. [2022-11-20 10:37:33,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 95 transitions, 261 flow [2022-11-20 10:37:33,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:37:33,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:37:33,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 571 transitions. [2022-11-20 10:37:33,739 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7493438320209974 [2022-11-20 10:37:33,740 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 571 transitions. [2022-11-20 10:37:33,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 571 transitions. [2022-11-20 10:37:33,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:33,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 571 transitions. [2022-11-20 10:37:33,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.16666666666667) internal successors, (571), 6 states have internal predecessors, (571), 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) [2022-11-20 10:37:33,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-11-20 10:37:33,744 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-11-20 10:37:33,744 INFO L175 Difference]: Start difference. First operand has 100 places, 92 transitions, 207 flow. Second operand 6 states and 571 transitions. [2022-11-20 10:37:33,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 95 transitions, 261 flow [2022-11-20 10:37:33,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 95 transitions, 254 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:37:33,747 INFO L231 Difference]: Finished difference. Result has 100 places, 91 transitions, 206 flow [2022-11-20 10:37:33,747 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=206, PETRI_PLACES=100, PETRI_TRANSITIONS=91} [2022-11-20 10:37:33,748 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -9 predicate places. [2022-11-20 10:37:33,748 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 91 transitions, 206 flow [2022-11-20 10:37:33,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.83333333333333) internal successors, (563), 6 states have internal predecessors, (563), 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) [2022-11-20 10:37:33,749 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:33,749 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:33,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:37:33,750 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 10:37:33,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:33,750 INFO L85 PathProgramCache]: Analyzing trace with hash -759474357, now seen corresponding path program 1 times [2022-11-20 10:37:33,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:33,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348565924] [2022-11-20 10:37:33,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:33,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:33,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:33,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:33,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348565924] [2022-11-20 10:37:33,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348565924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:33,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:33,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:37:33,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945729138] [2022-11-20 10:37:33,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:33,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:37:33,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:33,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:37:33,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:37:33,804 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 127 [2022-11-20 10:37:33,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 91 transitions, 206 flow. Second operand 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) [2022-11-20 10:37:33,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:33,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 127 [2022-11-20 10:37:33,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:33,829 INFO L130 PetriNetUnfolder]: 14/136 cut-off events. [2022-11-20 10:37:33,830 INFO L131 PetriNetUnfolder]: For 5/8 co-relation queries the response was YES. [2022-11-20 10:37:33,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 136 events. 14/136 cut-off events. For 5/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 246 event pairs, 3 based on Foata normal form. 1/129 useless extension candidates. Maximal degree in co-relation 161. Up to 18 conditions per place. [2022-11-20 10:37:33,831 INFO L137 encePairwiseOnDemand]: 125/127 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2022-11-20 10:37:33,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 90 transitions, 218 flow [2022-11-20 10:37:33,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:37:33,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:37:33,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 326 transitions. [2022-11-20 10:37:33,833 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8556430446194225 [2022-11-20 10:37:33,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 326 transitions. [2022-11-20 10:37:33,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 326 transitions. [2022-11-20 10:37:33,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:33,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 326 transitions. [2022-11-20 10:37:33,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2022-11-20 10:37:33,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-20 10:37:33,836 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-20 10:37:33,836 INFO L175 Difference]: Start difference. First operand has 100 places, 91 transitions, 206 flow. Second operand 3 states and 326 transitions. [2022-11-20 10:37:33,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 90 transitions, 218 flow [2022-11-20 10:37:33,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 90 transitions, 211 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:37:33,838 INFO L231 Difference]: Finished difference. Result has 97 places, 0 transitions, 0 flow [2022-11-20 10:37:33,838 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=97, PETRI_TRANSITIONS=0} [2022-11-20 10:37:33,839 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -12 predicate places. [2022-11-20 10:37:33,839 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 0 transitions, 0 flow [2022-11-20 10:37:33,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-11-20 10:37:33,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2022-11-20 10:37:33,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2022-11-20 10:37:33,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2022-11-20 10:37:33,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2022-11-20 10:37:33,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2022-11-20 10:37:33,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2022-11-20 10:37:33,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2022-11-20 10:37:33,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2022-11-20 10:37:33,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2022-11-20 10:37:33,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2022-11-20 10:37:33,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2022-11-20 10:37:33,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2022-11-20 10:37:33,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2022-11-20 10:37:33,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2022-11-20 10:37:33,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2022-11-20 10:37:33,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 26 remaining) [2022-11-20 10:37:33,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 26 remaining) [2022-11-20 10:37:33,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2022-11-20 10:37:33,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2022-11-20 10:37:33,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2022-11-20 10:37:33,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2022-11-20 10:37:33,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2022-11-20 10:37:33,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2022-11-20 10:37:33,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2022-11-20 10:37:33,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2022-11-20 10:37:33,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2022-11-20 10:37:33,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:37:33,849 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:33,855 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 10:37:33,855 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:37:33,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:37:33 BasicIcfg [2022-11-20 10:37:33,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:37:33,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:37:33,862 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:37:33,862 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:37:33,863 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:31" (3/4) ... [2022-11-20 10:37:33,866 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:37:33,871 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 10:37:33,871 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 10:37:33,878 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-20 10:37:33,878 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 10:37:33,878 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 10:37:33,879 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:37:33,935 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:37:33,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:37:33,936 INFO L158 Benchmark]: Toolchain (without parser) took 4010.89ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 93.1MB in the beginning and 91.2MB in the end (delta: 1.9MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2022-11-20 10:37:33,936 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:37:33,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.99ms. Allocated memory is still 138.4MB. Free memory was 92.7MB in the beginning and 81.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:37:33,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.81ms. Allocated memory is still 138.4MB. Free memory was 81.9MB in the beginning and 80.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:37:33,937 INFO L158 Benchmark]: Boogie Preprocessor took 30.45ms. Allocated memory is still 138.4MB. Free memory was 80.2MB in the beginning and 78.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:37:33,938 INFO L158 Benchmark]: RCFGBuilder took 829.10ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 78.4MB in the beginning and 136.6MB in the end (delta: -58.2MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-11-20 10:37:33,938 INFO L158 Benchmark]: TraceAbstraction took 2765.42ms. Allocated memory is still 176.2MB. Free memory was 135.5MB in the beginning and 94.3MB in the end (delta: 41.2MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2022-11-20 10:37:33,938 INFO L158 Benchmark]: Witness Printer took 74.10ms. Allocated memory is still 176.2MB. Free memory was 94.3MB in the beginning and 91.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:37:33,940 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.99ms. Allocated memory is still 138.4MB. Free memory was 92.7MB in the beginning and 81.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.81ms. Allocated memory is still 138.4MB. Free memory was 81.9MB in the beginning and 80.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.45ms. Allocated memory is still 138.4MB. Free memory was 80.2MB in the beginning and 78.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 829.10ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 78.4MB in the beginning and 136.6MB in the end (delta: -58.2MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2765.42ms. Allocated memory is still 176.2MB. Free memory was 135.5MB in the beginning and 94.3MB in the end (delta: 41.2MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. * Witness Printer took 74.10ms. Allocated memory is still 176.2MB. Free memory was 94.3MB in the beginning and 91.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 155 locations, 26 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: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 42 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, InterpolantAutomatonStates: 27, 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, 1.2s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 491 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 10:37:33,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a85259-8957-438d-9621-9b840e66dd70/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE