./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/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_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/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_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/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 c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 --- 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 11:27:12,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:27:12,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:27:12,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:27:12,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:27:12,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:27:12,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:27:12,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:27:12,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:27:12,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:27:12,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:27:12,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:27:12,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:27:12,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:27:12,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:27:12,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:27:12,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:27:12,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:27:12,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:27:12,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:27:12,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:27:12,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:27:12,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:27:12,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:27:12,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:27:12,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:27:12,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:27:12,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:27:12,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:27:12,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:27:12,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:27:12,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:27:12,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:27:12,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:27:12,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:27:12,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:27:12,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:27:12,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:27:12,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:27:12,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:27:12,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:27:12,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:27:12,234 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:27:12,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:27:12,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:27:12,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:27:12,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:27:12,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:27:12,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:27:12,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:27:12,237 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:27:12,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:27:12,238 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:27:12,238 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:27:12,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:27:12,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:27:12,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:27:12,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:27:12,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:27:12,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:27:12,240 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:27:12,240 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:27:12,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:27:12,240 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:27:12,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:27:12,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:27:12,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:27:12,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:27:12,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:27:12,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:27:12,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:27:12,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:27:12,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:27:12,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:27:12,243 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:27:12,244 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:27:12,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:27:12,244 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_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 [2022-11-20 11:27:12,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:27:12,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:27:12,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:27:12,589 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:27:12,589 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:27:12,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2022-11-20 11:27:15,641 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:27:15,932 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:27:15,933 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2022-11-20 11:27:15,942 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/bin/uautomizer-ug76WZFUDN/data/ea256f8c5/0fdbafc80a7d4fed96128082d232144f/FLAGfac63c2e0 [2022-11-20 11:27:15,958 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/bin/uautomizer-ug76WZFUDN/data/ea256f8c5/0fdbafc80a7d4fed96128082d232144f [2022-11-20 11:27:15,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:27:15,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:27:15,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:27:15,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:27:15,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:27:15,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:27:15" (1/1) ... [2022-11-20 11:27:15,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e44d100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:15, skipping insertion in model container [2022-11-20 11:27:15,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:27:15" (1/1) ... [2022-11-20 11:27:15,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:27:16,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:27:16,256 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_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2022-11-20 11:27:16,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:27:16,281 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:27:16,326 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_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2022-11-20 11:27:16,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:27:16,348 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:27:16,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:16 WrapperNode [2022-11-20 11:27:16,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:27:16,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:27:16,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:27:16,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:27:16,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:16" (1/1) ... [2022-11-20 11:27:16,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:16" (1/1) ... [2022-11-20 11:27:16,430 INFO L138 Inliner]: procedures = 26, calls = 75, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 641 [2022-11-20 11:27:16,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:27:16,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:27:16,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:27:16,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:27:16,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:16" (1/1) ... [2022-11-20 11:27:16,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:16" (1/1) ... [2022-11-20 11:27:16,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:16" (1/1) ... [2022-11-20 11:27:16,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:16" (1/1) ... [2022-11-20 11:27:16,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:16" (1/1) ... [2022-11-20 11:27:16,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:16" (1/1) ... [2022-11-20 11:27:16,482 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:16" (1/1) ... [2022-11-20 11:27:16,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:16" (1/1) ... [2022-11-20 11:27:16,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:27:16,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:27:16,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:27:16,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:27:16,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:16" (1/1) ... [2022-11-20 11:27:16,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:27:16,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:27:16,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:27:16,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5adebba1-dee0-4bed-ad04-9da91e4dcfc0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:27:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:27:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:27:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:27:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:27:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:27:16,603 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:27:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:27:16,604 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:27:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:27:16,604 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:27:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 11:27:16,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 11:27:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:27:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:27:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:27:16,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:27:16,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:27:16,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:27:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:27:16,609 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 11:27:16,766 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:27:16,768 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:27:17,925 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:27:18,579 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:27:18,579 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 11:27:18,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:27:18 BoogieIcfgContainer [2022-11-20 11:27:18,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:27:18,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:27:18,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:27:18,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:27:18,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:27:15" (1/3) ... [2022-11-20 11:27:18,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585ba441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:27:18, skipping insertion in model container [2022-11-20 11:27:18,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:27:16" (2/3) ... [2022-11-20 11:27:18,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585ba441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:27:18, skipping insertion in model container [2022-11-20 11:27:18,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:27:18" (3/3) ... [2022-11-20 11:27:18,600 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c [2022-11-20 11:27:18,642 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:27:18,654 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:27:18,654 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2022-11-20 11:27:18,654 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:27:18,831 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-20 11:27:18,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 455 places, 465 transitions, 962 flow [2022-11-20 11:27:19,084 INFO L130 PetriNetUnfolder]: 23/461 cut-off events. [2022-11-20 11:27:19,084 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 11:27:19,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 461 events. 23/461 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 634 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 376. Up to 2 conditions per place. [2022-11-20 11:27:19,092 INFO L82 GeneralOperation]: Start removeDead. Operand has 455 places, 465 transitions, 962 flow [2022-11-20 11:27:19,104 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 430 places, 439 transitions, 902 flow [2022-11-20 11:27:19,114 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:27:19,120 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;@844b18d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:27:19,121 INFO L358 AbstractCegarLoop]: Starting to check reachability of 173 error locations. [2022-11-20 11:27:19,126 INFO L130 PetriNetUnfolder]: 0/34 cut-off events. [2022-11-20 11:27:19,126 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:27:19,127 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:19,127 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:27:19,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:19,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:19,133 INFO L85 PathProgramCache]: Analyzing trace with hash -478683625, now seen corresponding path program 1 times [2022-11-20 11:27:19,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:19,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482292018] [2022-11-20 11:27:19,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:19,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:19,378 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 11:27:19,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:19,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482292018] [2022-11-20 11:27:19,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482292018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:19,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:19,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:19,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82225283] [2022-11-20 11:27:19,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:19,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:19,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:19,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:19,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:19,450 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 465 [2022-11-20 11:27:19,458 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 439 transitions, 902 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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 11:27:19,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:19,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 465 [2022-11-20 11:27:19,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:20,246 INFO L130 PetriNetUnfolder]: 454/1232 cut-off events. [2022-11-20 11:27:20,246 INFO L131 PetriNetUnfolder]: For 162/233 co-relation queries the response was YES. [2022-11-20 11:27:20,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1977 conditions, 1232 events. 454/1232 cut-off events. For 162/233 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5216 event pairs, 272 based on Foata normal form. 184/1238 useless extension candidates. Maximal degree in co-relation 1540. Up to 618 conditions per place. [2022-11-20 11:27:20,262 INFO L137 encePairwiseOnDemand]: 380/465 looper letters, 29 selfloop transitions, 2 changer transitions 6/356 dead transitions. [2022-11-20 11:27:20,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 356 transitions, 798 flow [2022-11-20 11:27:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:20,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:20,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1161 transitions. [2022-11-20 11:27:20,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.832258064516129 [2022-11-20 11:27:20,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1161 transitions. [2022-11-20 11:27:20,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1161 transitions. [2022-11-20 11:27:20,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:20,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1161 transitions. [2022-11-20 11:27:20,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.0) internal successors, (1161), 3 states have internal predecessors, (1161), 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 11:27:20,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:20,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:20,319 INFO L175 Difference]: Start difference. First operand has 430 places, 439 transitions, 902 flow. Second operand 3 states and 1161 transitions. [2022-11-20 11:27:20,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 356 transitions, 798 flow [2022-11-20 11:27:20,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 356 transitions, 782 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-20 11:27:20,342 INFO L231 Difference]: Finished difference. Result has 353 places, 350 transitions, 712 flow [2022-11-20 11:27:20,345 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=712, PETRI_PLACES=353, PETRI_TRANSITIONS=350} [2022-11-20 11:27:20,351 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -77 predicate places. [2022-11-20 11:27:20,351 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 350 transitions, 712 flow [2022-11-20 11:27:20,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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 11:27:20,353 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:20,353 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] [2022-11-20 11:27:20,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:27:20,354 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:20,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:20,355 INFO L85 PathProgramCache]: Analyzing trace with hash -99763621, now seen corresponding path program 1 times [2022-11-20 11:27:20,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:20,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558673381] [2022-11-20 11:27:20,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:20,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:20,511 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 11:27:20,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:20,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558673381] [2022-11-20 11:27:20,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558673381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:20,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:20,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:20,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589176700] [2022-11-20 11:27:20,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:20,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:20,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:20,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:20,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:20,519 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 465 [2022-11-20 11:27:20,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 350 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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 11:27:20,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:20,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 465 [2022-11-20 11:27:20,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:20,984 INFO L130 PetriNetUnfolder]: 454/1225 cut-off events. [2022-11-20 11:27:20,985 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:20,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1889 conditions, 1225 events. 454/1225 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5201 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1846. Up to 618 conditions per place. [2022-11-20 11:27:20,994 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 29 selfloop transitions, 2 changer transitions 0/349 dead transitions. [2022-11-20 11:27:20,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 349 transitions, 772 flow [2022-11-20 11:27:20,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:20,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:20,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1079 transitions. [2022-11-20 11:27:20,998 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7734767025089606 [2022-11-20 11:27:20,998 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1079 transitions. [2022-11-20 11:27:20,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1079 transitions. [2022-11-20 11:27:20,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:20,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1079 transitions. [2022-11-20 11:27:21,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 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 11:27:21,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:21,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:21,007 INFO L175 Difference]: Start difference. First operand has 353 places, 350 transitions, 712 flow. Second operand 3 states and 1079 transitions. [2022-11-20 11:27:21,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 349 transitions, 772 flow [2022-11-20 11:27:21,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 349 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:21,014 INFO L231 Difference]: Finished difference. Result has 346 places, 349 transitions, 710 flow [2022-11-20 11:27:21,015 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=710, PETRI_PLACES=346, PETRI_TRANSITIONS=349} [2022-11-20 11:27:21,016 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -84 predicate places. [2022-11-20 11:27:21,016 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 349 transitions, 710 flow [2022-11-20 11:27:21,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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 11:27:21,017 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:21,018 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] [2022-11-20 11:27:21,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:27:21,018 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:21,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:21,019 INFO L85 PathProgramCache]: Analyzing trace with hash 964529178, now seen corresponding path program 1 times [2022-11-20 11:27:21,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:21,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987249952] [2022-11-20 11:27:21,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:21,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:21,092 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 11:27:21,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:21,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987249952] [2022-11-20 11:27:21,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987249952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:21,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:21,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:21,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5004168] [2022-11-20 11:27:21,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:21,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:21,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:21,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:21,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:21,096 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-20 11:27:21,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 349 transitions, 710 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:21,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:21,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-20 11:27:21,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:21,509 INFO L130 PetriNetUnfolder]: 454/1224 cut-off events. [2022-11-20 11:27:21,510 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:21,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1885 conditions, 1224 events. 454/1224 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5209 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1835. Up to 615 conditions per place. [2022-11-20 11:27:21,519 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/348 dead transitions. [2022-11-20 11:27:21,520 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 348 transitions, 764 flow [2022-11-20 11:27:21,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:21,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:21,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-20 11:27:21,524 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-20 11:27:21,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-20 11:27:21,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-20 11:27:21,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:21,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-20 11:27:21,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 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 11:27:21,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:21,532 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:21,532 INFO L175 Difference]: Start difference. First operand has 346 places, 349 transitions, 710 flow. Second operand 3 states and 1085 transitions. [2022-11-20 11:27:21,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 348 transitions, 764 flow [2022-11-20 11:27:21,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 348 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:21,540 INFO L231 Difference]: Finished difference. Result has 345 places, 348 transitions, 708 flow [2022-11-20 11:27:21,541 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=708, PETRI_PLACES=345, PETRI_TRANSITIONS=348} [2022-11-20 11:27:21,541 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -85 predicate places. [2022-11-20 11:27:21,542 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 348 transitions, 708 flow [2022-11-20 11:27:21,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:21,543 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:21,543 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] [2022-11-20 11:27:21,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:27:21,544 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:21,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash 364475388, now seen corresponding path program 1 times [2022-11-20 11:27:21,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:21,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518758436] [2022-11-20 11:27:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:21,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:21,598 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 11:27:21,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:21,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518758436] [2022-11-20 11:27:21,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518758436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:21,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:21,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:21,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986919182] [2022-11-20 11:27:21,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:21,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:21,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:21,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:21,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:21,603 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-20 11:27:21,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 348 transitions, 708 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:21,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:21,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-20 11:27:21,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:22,025 INFO L130 PetriNetUnfolder]: 454/1223 cut-off events. [2022-11-20 11:27:22,025 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:22,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1884 conditions, 1223 events. 454/1223 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5207 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1827. Up to 615 conditions per place. [2022-11-20 11:27:22,035 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/347 dead transitions. [2022-11-20 11:27:22,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 347 transitions, 762 flow [2022-11-20 11:27:22,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:22,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:22,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-20 11:27:22,042 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-20 11:27:22,043 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-20 11:27:22,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-20 11:27:22,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:22,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-20 11:27:22,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 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 11:27:22,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:22,051 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:22,055 INFO L175 Difference]: Start difference. First operand has 345 places, 348 transitions, 708 flow. Second operand 3 states and 1085 transitions. [2022-11-20 11:27:22,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 347 transitions, 762 flow [2022-11-20 11:27:22,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 347 transitions, 758 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:22,062 INFO L231 Difference]: Finished difference. Result has 344 places, 347 transitions, 706 flow [2022-11-20 11:27:22,062 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=706, PETRI_PLACES=344, PETRI_TRANSITIONS=347} [2022-11-20 11:27:22,064 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -86 predicate places. [2022-11-20 11:27:22,064 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 347 transitions, 706 flow [2022-11-20 11:27:22,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:22,065 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:22,065 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] [2022-11-20 11:27:22,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:27:22,066 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:22,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:22,066 INFO L85 PathProgramCache]: Analyzing trace with hash 306583187, now seen corresponding path program 1 times [2022-11-20 11:27:22,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:22,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902177667] [2022-11-20 11:27:22,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:22,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:22,120 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 11:27:22,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:22,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902177667] [2022-11-20 11:27:22,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902177667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:22,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:22,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:22,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694454148] [2022-11-20 11:27:22,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:22,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:22,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:22,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:22,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:22,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-20 11:27:22,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 347 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:22,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:22,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-20 11:27:22,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:22,509 INFO L130 PetriNetUnfolder]: 454/1222 cut-off events. [2022-11-20 11:27:22,510 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:22,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1883 conditions, 1222 events. 454/1222 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5178 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1819. Up to 615 conditions per place. [2022-11-20 11:27:22,519 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/346 dead transitions. [2022-11-20 11:27:22,520 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 346 transitions, 760 flow [2022-11-20 11:27:22,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:22,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:22,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-20 11:27:22,523 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-20 11:27:22,523 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-20 11:27:22,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-20 11:27:22,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:22,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-20 11:27:22,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 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 11:27:22,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:22,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:22,532 INFO L175 Difference]: Start difference. First operand has 344 places, 347 transitions, 706 flow. Second operand 3 states and 1085 transitions. [2022-11-20 11:27:22,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 346 transitions, 760 flow [2022-11-20 11:27:22,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 346 transitions, 756 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:22,538 INFO L231 Difference]: Finished difference. Result has 343 places, 346 transitions, 704 flow [2022-11-20 11:27:22,539 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=343, PETRI_TRANSITIONS=346} [2022-11-20 11:27:22,542 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -87 predicate places. [2022-11-20 11:27:22,542 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 346 transitions, 704 flow [2022-11-20 11:27:22,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:22,543 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:22,544 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:27:22,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:27:22,544 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:22,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:22,546 INFO L85 PathProgramCache]: Analyzing trace with hash -741308157, now seen corresponding path program 1 times [2022-11-20 11:27:22,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:22,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804042153] [2022-11-20 11:27:22,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:22,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:22,644 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 11:27:22,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:22,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804042153] [2022-11-20 11:27:22,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804042153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:22,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:22,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:22,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811726052] [2022-11-20 11:27:22,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:22,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:22,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:22,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:22,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:22,648 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-20 11:27:22,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 346 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:22,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:22,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-20 11:27:22,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:23,042 INFO L130 PetriNetUnfolder]: 454/1221 cut-off events. [2022-11-20 11:27:23,043 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:23,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1882 conditions, 1221 events. 454/1221 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5182 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1811. Up to 615 conditions per place. [2022-11-20 11:27:23,055 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/345 dead transitions. [2022-11-20 11:27:23,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 345 transitions, 758 flow [2022-11-20 11:27:23,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:23,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:23,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-20 11:27:23,059 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-20 11:27:23,059 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-20 11:27:23,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-20 11:27:23,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:23,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-20 11:27:23,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 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 11:27:23,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:23,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:23,068 INFO L175 Difference]: Start difference. First operand has 343 places, 346 transitions, 704 flow. Second operand 3 states and 1085 transitions. [2022-11-20 11:27:23,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 345 transitions, 758 flow [2022-11-20 11:27:23,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 345 transitions, 754 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:23,078 INFO L231 Difference]: Finished difference. Result has 342 places, 345 transitions, 702 flow [2022-11-20 11:27:23,079 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=342, PETRI_TRANSITIONS=345} [2022-11-20 11:27:23,082 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -88 predicate places. [2022-11-20 11:27:23,082 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 345 transitions, 702 flow [2022-11-20 11:27:23,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:23,084 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:23,084 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:23,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:27:23,084 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:23,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:23,086 INFO L85 PathProgramCache]: Analyzing trace with hash -2146365794, now seen corresponding path program 1 times [2022-11-20 11:27:23,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:23,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297087780] [2022-11-20 11:27:23,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:23,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:23,186 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 11:27:23,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:23,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297087780] [2022-11-20 11:27:23,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297087780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:23,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:23,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:23,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793565976] [2022-11-20 11:27:23,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:23,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:23,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:23,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:23,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:23,190 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-20 11:27:23,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 345 transitions, 702 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:23,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:23,192 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-20 11:27:23,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:23,547 INFO L130 PetriNetUnfolder]: 454/1220 cut-off events. [2022-11-20 11:27:23,547 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:23,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1881 conditions, 1220 events. 454/1220 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5196 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1803. Up to 615 conditions per place. [2022-11-20 11:27:23,558 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/344 dead transitions. [2022-11-20 11:27:23,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 344 transitions, 756 flow [2022-11-20 11:27:23,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:23,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:23,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-20 11:27:23,561 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-20 11:27:23,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-20 11:27:23,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-20 11:27:23,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:23,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-20 11:27:23,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 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 11:27:23,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:23,569 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:23,569 INFO L175 Difference]: Start difference. First operand has 342 places, 345 transitions, 702 flow. Second operand 3 states and 1085 transitions. [2022-11-20 11:27:23,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 344 transitions, 756 flow [2022-11-20 11:27:23,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 344 transitions, 752 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:23,576 INFO L231 Difference]: Finished difference. Result has 341 places, 344 transitions, 700 flow [2022-11-20 11:27:23,577 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=700, PETRI_PLACES=341, PETRI_TRANSITIONS=344} [2022-11-20 11:27:23,578 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -89 predicate places. [2022-11-20 11:27:23,578 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 344 transitions, 700 flow [2022-11-20 11:27:23,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:23,579 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:23,579 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, 1, 1, 1, 1, 1] [2022-11-20 11:27:23,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:27:23,580 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:23,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:23,580 INFO L85 PathProgramCache]: Analyzing trace with hash -688006266, now seen corresponding path program 1 times [2022-11-20 11:27:23,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:23,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440328729] [2022-11-20 11:27:23,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:23,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:23,625 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 11:27:23,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:23,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440328729] [2022-11-20 11:27:23,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440328729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:23,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:23,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:23,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152385181] [2022-11-20 11:27:23,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:23,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:23,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:23,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:23,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:23,629 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-20 11:27:23,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 344 transitions, 700 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:23,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:23,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-20 11:27:23,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:24,005 INFO L130 PetriNetUnfolder]: 454/1219 cut-off events. [2022-11-20 11:27:24,005 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:24,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1880 conditions, 1219 events. 454/1219 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5212 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1795. Up to 615 conditions per place. [2022-11-20 11:27:24,015 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/343 dead transitions. [2022-11-20 11:27:24,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 343 transitions, 754 flow [2022-11-20 11:27:24,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:24,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:24,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-20 11:27:24,019 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-20 11:27:24,019 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-20 11:27:24,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-20 11:27:24,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:24,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-20 11:27:24,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 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 11:27:24,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:24,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:24,027 INFO L175 Difference]: Start difference. First operand has 341 places, 344 transitions, 700 flow. Second operand 3 states and 1085 transitions. [2022-11-20 11:27:24,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 343 transitions, 754 flow [2022-11-20 11:27:24,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 343 transitions, 750 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:24,034 INFO L231 Difference]: Finished difference. Result has 340 places, 343 transitions, 698 flow [2022-11-20 11:27:24,035 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=340, PETRI_TRANSITIONS=343} [2022-11-20 11:27:24,035 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -90 predicate places. [2022-11-20 11:27:24,035 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 343 transitions, 698 flow [2022-11-20 11:27:24,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:24,036 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:24,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:27:24,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:27:24,037 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:24,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:24,038 INFO L85 PathProgramCache]: Analyzing trace with hash -951829221, now seen corresponding path program 1 times [2022-11-20 11:27:24,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:24,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078576384] [2022-11-20 11:27:24,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:24,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:24,081 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 11:27:24,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:24,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078576384] [2022-11-20 11:27:24,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078576384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:24,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:24,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:24,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920096370] [2022-11-20 11:27:24,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:24,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:24,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:24,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:24,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:24,085 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-20 11:27:24,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 343 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:24,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:24,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-20 11:27:24,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:24,467 INFO L130 PetriNetUnfolder]: 454/1218 cut-off events. [2022-11-20 11:27:24,468 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:24,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1879 conditions, 1218 events. 454/1218 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5205 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1787. Up to 615 conditions per place. [2022-11-20 11:27:24,476 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/342 dead transitions. [2022-11-20 11:27:24,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 342 transitions, 752 flow [2022-11-20 11:27:24,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:24,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:24,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-20 11:27:24,479 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-20 11:27:24,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-20 11:27:24,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-20 11:27:24,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:24,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-20 11:27:24,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 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 11:27:24,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:24,487 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:24,487 INFO L175 Difference]: Start difference. First operand has 340 places, 343 transitions, 698 flow. Second operand 3 states and 1085 transitions. [2022-11-20 11:27:24,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 342 transitions, 752 flow [2022-11-20 11:27:24,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 342 transitions, 748 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:24,493 INFO L231 Difference]: Finished difference. Result has 339 places, 342 transitions, 696 flow [2022-11-20 11:27:24,494 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=696, PETRI_PLACES=339, PETRI_TRANSITIONS=342} [2022-11-20 11:27:24,495 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -91 predicate places. [2022-11-20 11:27:24,495 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 342 transitions, 696 flow [2022-11-20 11:27:24,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:24,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:24,496 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:27:24,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:27:24,496 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:24,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:24,497 INFO L85 PathProgramCache]: Analyzing trace with hash -445214302, now seen corresponding path program 1 times [2022-11-20 11:27:24,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:24,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537220209] [2022-11-20 11:27:24,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:24,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:24,548 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 11:27:24,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:24,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537220209] [2022-11-20 11:27:24,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537220209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:24,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:24,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:24,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986445336] [2022-11-20 11:27:24,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:24,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:24,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:24,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:24,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:24,552 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-20 11:27:24,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 342 transitions, 696 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:24,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:24,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-20 11:27:24,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:24,903 INFO L130 PetriNetUnfolder]: 454/1217 cut-off events. [2022-11-20 11:27:24,904 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:24,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 1217 events. 454/1217 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5208 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1774. Up to 610 conditions per place. [2022-11-20 11:27:24,913 INFO L137 encePairwiseOnDemand]: 463/465 looper letters, 23 selfloop transitions, 1 changer transitions 0/341 dead transitions. [2022-11-20 11:27:24,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 341 transitions, 742 flow [2022-11-20 11:27:24,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:24,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:24,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1090 transitions. [2022-11-20 11:27:24,922 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7813620071684588 [2022-11-20 11:27:24,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1090 transitions. [2022-11-20 11:27:24,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1090 transitions. [2022-11-20 11:27:24,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:24,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1090 transitions. [2022-11-20 11:27:24,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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 11:27:24,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:24,947 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:24,947 INFO L175 Difference]: Start difference. First operand has 339 places, 342 transitions, 696 flow. Second operand 3 states and 1090 transitions. [2022-11-20 11:27:24,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 341 transitions, 742 flow [2022-11-20 11:27:24,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 341 transitions, 738 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:24,953 INFO L231 Difference]: Finished difference. Result has 338 places, 341 transitions, 692 flow [2022-11-20 11:27:24,954 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=692, PETRI_PLACES=338, PETRI_TRANSITIONS=341} [2022-11-20 11:27:24,954 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -92 predicate places. [2022-11-20 11:27:24,955 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 341 transitions, 692 flow [2022-11-20 11:27:24,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:24,955 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:24,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:24,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:27:24,956 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:24,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:24,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1832068738, now seen corresponding path program 1 times [2022-11-20 11:27:24,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:24,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196436844] [2022-11-20 11:27:24,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:24,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:25,010 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 11:27:25,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:25,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196436844] [2022-11-20 11:27:25,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196436844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:25,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:25,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:25,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505693205] [2022-11-20 11:27:25,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:25,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:25,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:25,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:25,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:25,013 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-20 11:27:25,014 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 341 transitions, 692 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:25,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:25,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-20 11:27:25,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:25,357 INFO L130 PetriNetUnfolder]: 454/1216 cut-off events. [2022-11-20 11:27:25,357 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:25,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1873 conditions, 1216 events. 454/1216 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5205 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1774. Up to 612 conditions per place. [2022-11-20 11:27:25,365 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 23 selfloop transitions, 2 changer transitions 0/340 dead transitions. [2022-11-20 11:27:25,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 340 transitions, 740 flow [2022-11-20 11:27:25,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:25,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:25,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1091 transitions. [2022-11-20 11:27:25,368 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.782078853046595 [2022-11-20 11:27:25,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1091 transitions. [2022-11-20 11:27:25,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1091 transitions. [2022-11-20 11:27:25,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:25,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1091 transitions. [2022-11-20 11:27:25,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 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 11:27:25,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:25,375 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:25,375 INFO L175 Difference]: Start difference. First operand has 338 places, 341 transitions, 692 flow. Second operand 3 states and 1091 transitions. [2022-11-20 11:27:25,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 340 transitions, 740 flow [2022-11-20 11:27:25,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 340 transitions, 739 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:27:25,381 INFO L231 Difference]: Finished difference. Result has 338 places, 340 transitions, 693 flow [2022-11-20 11:27:25,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=693, PETRI_PLACES=338, PETRI_TRANSITIONS=340} [2022-11-20 11:27:25,382 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -92 predicate places. [2022-11-20 11:27:25,383 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 340 transitions, 693 flow [2022-11-20 11:27:25,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:25,383 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:25,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:25,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:27:25,384 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:25,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:25,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1310212640, now seen corresponding path program 1 times [2022-11-20 11:27:25,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:25,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583351957] [2022-11-20 11:27:25,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:25,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:25,923 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 11:27:25,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:25,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583351957] [2022-11-20 11:27:25,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583351957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:25,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:25,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:27:25,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41660764] [2022-11-20 11:27:25,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:25,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:27:25,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:25,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:27:25,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:27:25,927 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 465 [2022-11-20 11:27:25,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 340 transitions, 693 flow. Second operand has 6 states, 6 states have (on average 304.8333333333333) internal successors, (1829), 6 states have internal predecessors, (1829), 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 11:27:25,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:25,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 465 [2022-11-20 11:27:25,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:27,677 INFO L130 PetriNetUnfolder]: 3010/4626 cut-off events. [2022-11-20 11:27:27,678 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:27:27,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8588 conditions, 4626 events. 3010/4626 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 20134 event pairs, 1976 based on Foata normal form. 0/4346 useless extension candidates. Maximal degree in co-relation 8490. Up to 3907 conditions per place. [2022-11-20 11:27:27,714 INFO L137 encePairwiseOnDemand]: 453/465 looper letters, 66 selfloop transitions, 10 changer transitions 0/338 dead transitions. [2022-11-20 11:27:27,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 338 transitions, 841 flow [2022-11-20 11:27:27,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:27:27,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:27:27,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1896 transitions. [2022-11-20 11:27:27,722 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6795698924731183 [2022-11-20 11:27:27,722 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1896 transitions. [2022-11-20 11:27:27,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1896 transitions. [2022-11-20 11:27:27,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:27,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1896 transitions. [2022-11-20 11:27:27,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 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 11:27:27,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 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 11:27:27,734 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 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 11:27:27,734 INFO L175 Difference]: Start difference. First operand has 338 places, 340 transitions, 693 flow. Second operand 6 states and 1896 transitions. [2022-11-20 11:27:27,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 338 transitions, 841 flow [2022-11-20 11:27:27,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 338 transitions, 837 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:27,740 INFO L231 Difference]: Finished difference. Result has 339 places, 338 transitions, 705 flow [2022-11-20 11:27:27,740 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=685, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=705, PETRI_PLACES=339, PETRI_TRANSITIONS=338} [2022-11-20 11:27:27,743 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -91 predicate places. [2022-11-20 11:27:27,743 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 338 transitions, 705 flow [2022-11-20 11:27:27,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.8333333333333) internal successors, (1829), 6 states have internal predecessors, (1829), 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 11:27:27,744 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:27,744 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:27,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:27:27,745 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:27,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:27,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1226075615, now seen corresponding path program 1 times [2022-11-20 11:27:27,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:27,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595544929] [2022-11-20 11:27:27,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:27,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:27,816 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 11:27:27,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:27,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595544929] [2022-11-20 11:27:27,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595544929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:27,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:27,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:27,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995082007] [2022-11-20 11:27:27,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:27,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:27,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:27,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:27,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:27,821 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-20 11:27:27,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 338 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:27,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:27,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-20 11:27:27,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:28,197 INFO L130 PetriNetUnfolder]: 454/1213 cut-off events. [2022-11-20 11:27:28,197 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:28,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1879 conditions, 1213 events. 454/1213 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5195 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1846. Up to 610 conditions per place. [2022-11-20 11:27:28,205 INFO L137 encePairwiseOnDemand]: 463/465 looper letters, 23 selfloop transitions, 1 changer transitions 0/337 dead transitions. [2022-11-20 11:27:28,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 337 transitions, 751 flow [2022-11-20 11:27:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:28,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:28,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1090 transitions. [2022-11-20 11:27:28,209 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7813620071684588 [2022-11-20 11:27:28,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1090 transitions. [2022-11-20 11:27:28,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1090 transitions. [2022-11-20 11:27:28,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:28,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1090 transitions. [2022-11-20 11:27:28,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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 11:27:28,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:28,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:28,216 INFO L175 Difference]: Start difference. First operand has 339 places, 338 transitions, 705 flow. Second operand 3 states and 1090 transitions. [2022-11-20 11:27:28,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 337 transitions, 751 flow [2022-11-20 11:27:28,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 337 transitions, 731 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:27:28,222 INFO L231 Difference]: Finished difference. Result has 335 places, 337 transitions, 685 flow [2022-11-20 11:27:28,222 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=335, PETRI_TRANSITIONS=337} [2022-11-20 11:27:28,223 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -95 predicate places. [2022-11-20 11:27:28,223 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 337 transitions, 685 flow [2022-11-20 11:27:28,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:28,224 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:28,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:28,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:27:28,224 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:28,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:28,225 INFO L85 PathProgramCache]: Analyzing trace with hash 302779067, now seen corresponding path program 1 times [2022-11-20 11:27:28,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:28,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580781949] [2022-11-20 11:27:28,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:28,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:28,282 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 11:27:28,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:28,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580781949] [2022-11-20 11:27:28,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580781949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:28,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:28,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:28,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800997582] [2022-11-20 11:27:28,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:28,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:28,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:28,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:28,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:28,286 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-20 11:27:28,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 337 transitions, 685 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:28,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:28,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-20 11:27:28,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:28,667 INFO L130 PetriNetUnfolder]: 454/1212 cut-off events. [2022-11-20 11:27:28,667 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:28,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1870 conditions, 1212 events. 454/1212 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5209 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1771. Up to 612 conditions per place. [2022-11-20 11:27:28,674 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 23 selfloop transitions, 2 changer transitions 0/336 dead transitions. [2022-11-20 11:27:28,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 336 transitions, 733 flow [2022-11-20 11:27:28,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:28,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:28,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1091 transitions. [2022-11-20 11:27:28,678 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.782078853046595 [2022-11-20 11:27:28,678 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1091 transitions. [2022-11-20 11:27:28,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1091 transitions. [2022-11-20 11:27:28,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:28,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1091 transitions. [2022-11-20 11:27:28,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 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 11:27:28,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:28,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:28,685 INFO L175 Difference]: Start difference. First operand has 335 places, 337 transitions, 685 flow. Second operand 3 states and 1091 transitions. [2022-11-20 11:27:28,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 336 transitions, 733 flow [2022-11-20 11:27:28,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 336 transitions, 732 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:27:28,691 INFO L231 Difference]: Finished difference. Result has 335 places, 336 transitions, 686 flow [2022-11-20 11:27:28,692 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=335, PETRI_TRANSITIONS=336} [2022-11-20 11:27:28,692 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -95 predicate places. [2022-11-20 11:27:28,692 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 336 transitions, 686 flow [2022-11-20 11:27:28,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:28,693 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:28,693 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:28,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:27:28,693 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:28,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:28,694 INFO L85 PathProgramCache]: Analyzing trace with hash -961555895, now seen corresponding path program 1 times [2022-11-20 11:27:28,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:28,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805982905] [2022-11-20 11:27:28,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:28,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:28,752 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 11:27:28,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:28,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805982905] [2022-11-20 11:27:28,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805982905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:28,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:28,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:28,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355252984] [2022-11-20 11:27:28,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:28,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:28,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:28,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:28,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:28,755 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-20 11:27:28,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 336 transitions, 686 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:28,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:28,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-20 11:27:28,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:29,092 INFO L130 PetriNetUnfolder]: 454/1210 cut-off events. [2022-11-20 11:27:29,092 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:29,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1871 conditions, 1210 events. 454/1210 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5175 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1771. Up to 612 conditions per place. [2022-11-20 11:27:29,100 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 25 selfloop transitions, 1 changer transitions 0/334 dead transitions. [2022-11-20 11:27:29,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 334 transitions, 734 flow [2022-11-20 11:27:29,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:29,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:29,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1084 transitions. [2022-11-20 11:27:29,104 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7770609318996415 [2022-11-20 11:27:29,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1084 transitions. [2022-11-20 11:27:29,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1084 transitions. [2022-11-20 11:27:29,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:29,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1084 transitions. [2022-11-20 11:27:29,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.3333333333333) internal successors, (1084), 3 states have internal predecessors, (1084), 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 11:27:29,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:29,111 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:29,111 INFO L175 Difference]: Start difference. First operand has 335 places, 336 transitions, 686 flow. Second operand 3 states and 1084 transitions. [2022-11-20 11:27:29,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 334 transitions, 734 flow [2022-11-20 11:27:29,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 334 transitions, 730 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:29,145 INFO L231 Difference]: Finished difference. Result has 333 places, 334 transitions, 680 flow [2022-11-20 11:27:29,146 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=333, PETRI_TRANSITIONS=334} [2022-11-20 11:27:29,146 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -97 predicate places. [2022-11-20 11:27:29,147 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 334 transitions, 680 flow [2022-11-20 11:27:29,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:29,147 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:29,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:29,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:27:29,148 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:29,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:29,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1353725316, now seen corresponding path program 1 times [2022-11-20 11:27:29,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:29,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506519372] [2022-11-20 11:27:29,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:29,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:29,224 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 11:27:29,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:29,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506519372] [2022-11-20 11:27:29,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506519372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:29,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:29,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:29,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336150411] [2022-11-20 11:27:29,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:29,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:29,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:29,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:29,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:29,229 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-20 11:27:29,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 334 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:29,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:29,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-20 11:27:29,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:29,673 INFO L130 PetriNetUnfolder]: 454/1209 cut-off events. [2022-11-20 11:27:29,673 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:29,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1867 conditions, 1209 events. 454/1209 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5167 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1767. Up to 610 conditions per place. [2022-11-20 11:27:29,683 INFO L137 encePairwiseOnDemand]: 463/465 looper letters, 23 selfloop transitions, 1 changer transitions 0/333 dead transitions. [2022-11-20 11:27:29,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 333 transitions, 726 flow [2022-11-20 11:27:29,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:29,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:29,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1090 transitions. [2022-11-20 11:27:29,687 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7813620071684588 [2022-11-20 11:27:29,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1090 transitions. [2022-11-20 11:27:29,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1090 transitions. [2022-11-20 11:27:29,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:29,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1090 transitions. [2022-11-20 11:27:29,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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 11:27:29,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:29,696 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:29,696 INFO L175 Difference]: Start difference. First operand has 333 places, 334 transitions, 680 flow. Second operand 3 states and 1090 transitions. [2022-11-20 11:27:29,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 333 transitions, 726 flow [2022-11-20 11:27:29,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 333 transitions, 725 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:27:29,704 INFO L231 Difference]: Finished difference. Result has 333 places, 333 transitions, 679 flow [2022-11-20 11:27:29,704 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=679, PETRI_PLACES=333, PETRI_TRANSITIONS=333} [2022-11-20 11:27:29,705 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -97 predicate places. [2022-11-20 11:27:29,705 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 333 transitions, 679 flow [2022-11-20 11:27:29,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:29,707 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:29,707 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:29,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:27:29,708 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:29,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:29,708 INFO L85 PathProgramCache]: Analyzing trace with hash 445125427, now seen corresponding path program 1 times [2022-11-20 11:27:29,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:29,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194590493] [2022-11-20 11:27:29,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:29,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:29,788 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 11:27:29,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:29,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194590493] [2022-11-20 11:27:29,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194590493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:29,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:29,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:29,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925025953] [2022-11-20 11:27:29,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:29,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:29,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:29,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:29,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:29,793 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-20 11:27:29,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 333 transitions, 679 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:29,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:29,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-20 11:27:29,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:30,239 INFO L130 PetriNetUnfolder]: 454/1207 cut-off events. [2022-11-20 11:27:30,240 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-20 11:27:30,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1868 conditions, 1207 events. 454/1207 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5175 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1768. Up to 612 conditions per place. [2022-11-20 11:27:30,249 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 25 selfloop transitions, 1 changer transitions 0/331 dead transitions. [2022-11-20 11:27:30,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 331 transitions, 727 flow [2022-11-20 11:27:30,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:30,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1084 transitions. [2022-11-20 11:27:30,254 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7770609318996415 [2022-11-20 11:27:30,254 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1084 transitions. [2022-11-20 11:27:30,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1084 transitions. [2022-11-20 11:27:30,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:30,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1084 transitions. [2022-11-20 11:27:30,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.3333333333333) internal successors, (1084), 3 states have internal predecessors, (1084), 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 11:27:30,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:30,262 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:30,262 INFO L175 Difference]: Start difference. First operand has 333 places, 333 transitions, 679 flow. Second operand 3 states and 1084 transitions. [2022-11-20 11:27:30,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 331 transitions, 727 flow [2022-11-20 11:27:30,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 331 transitions, 726 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:27:30,270 INFO L231 Difference]: Finished difference. Result has 332 places, 331 transitions, 676 flow [2022-11-20 11:27:30,270 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=332, PETRI_TRANSITIONS=331} [2022-11-20 11:27:30,271 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -98 predicate places. [2022-11-20 11:27:30,271 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 331 transitions, 676 flow [2022-11-20 11:27:30,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 11:27:30,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:30,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:30,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:27:30,272 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:30,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:30,273 INFO L85 PathProgramCache]: Analyzing trace with hash 478304205, now seen corresponding path program 1 times [2022-11-20 11:27:30,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:30,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827166462] [2022-11-20 11:27:30,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:30,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:30,357 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 11:27:30,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:30,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827166462] [2022-11-20 11:27:30,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827166462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:30,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:30,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:30,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065395569] [2022-11-20 11:27:30,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:30,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:30,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:30,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:30,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:30,363 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-20 11:27:30,364 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 331 transitions, 676 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:30,364 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:30,365 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-20 11:27:30,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:30,983 INFO L130 PetriNetUnfolder]: 761/1951 cut-off events. [2022-11-20 11:27:30,984 INFO L131 PetriNetUnfolder]: For 68/190 co-relation queries the response was YES. [2022-11-20 11:27:30,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3061 conditions, 1951 events. 761/1951 cut-off events. For 68/190 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 10414 event pairs, 443 based on Foata normal form. 0/1681 useless extension candidates. Maximal degree in co-relation 2961. Up to 659 conditions per place. [2022-11-20 11:27:30,997 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 41 selfloop transitions, 2 changer transitions 0/349 dead transitions. [2022-11-20 11:27:30,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 349 transitions, 806 flow [2022-11-20 11:27:30,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:30,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:31,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1109 transitions. [2022-11-20 11:27:31,001 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7949820788530466 [2022-11-20 11:27:31,001 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1109 transitions. [2022-11-20 11:27:31,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1109 transitions. [2022-11-20 11:27:31,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:31,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1109 transitions. [2022-11-20 11:27:31,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 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 11:27:31,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:31,008 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:31,008 INFO L175 Difference]: Start difference. First operand has 332 places, 331 transitions, 676 flow. Second operand 3 states and 1109 transitions. [2022-11-20 11:27:31,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 349 transitions, 806 flow [2022-11-20 11:27:31,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 349 transitions, 805 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:27:31,015 INFO L231 Difference]: Finished difference. Result has 333 places, 331 transitions, 683 flow [2022-11-20 11:27:31,016 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=683, PETRI_PLACES=333, PETRI_TRANSITIONS=331} [2022-11-20 11:27:31,016 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -97 predicate places. [2022-11-20 11:27:31,016 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 331 transitions, 683 flow [2022-11-20 11:27:31,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:31,017 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:31,017 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:31,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:27:31,017 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:31,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:31,018 INFO L85 PathProgramCache]: Analyzing trace with hash 83781772, now seen corresponding path program 1 times [2022-11-20 11:27:31,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:31,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85630910] [2022-11-20 11:27:31,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:31,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:31,071 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 11:27:31,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:31,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85630910] [2022-11-20 11:27:31,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85630910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:31,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:31,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:31,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106819810] [2022-11-20 11:27:31,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:31,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:31,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:31,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:31,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:31,075 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-20 11:27:31,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 331 transitions, 683 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:31,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:31,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-20 11:27:31,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:32,120 INFO L130 PetriNetUnfolder]: 1322/3401 cut-off events. [2022-11-20 11:27:32,120 INFO L131 PetriNetUnfolder]: For 281/489 co-relation queries the response was YES. [2022-11-20 11:27:32,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5603 conditions, 3401 events. 1322/3401 cut-off events. For 281/489 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 22766 event pairs, 755 based on Foata normal form. 0/2896 useless extension candidates. Maximal degree in co-relation 5502. Up to 1097 conditions per place. [2022-11-20 11:27:32,144 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 43 selfloop transitions, 2 changer transitions 0/350 dead transitions. [2022-11-20 11:27:32,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 350 transitions, 824 flow [2022-11-20 11:27:32,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:32,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:32,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1109 transitions. [2022-11-20 11:27:32,147 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7949820788530466 [2022-11-20 11:27:32,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1109 transitions. [2022-11-20 11:27:32,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1109 transitions. [2022-11-20 11:27:32,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:32,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1109 transitions. [2022-11-20 11:27:32,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 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 11:27:32,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:32,153 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:32,153 INFO L175 Difference]: Start difference. First operand has 333 places, 331 transitions, 683 flow. Second operand 3 states and 1109 transitions. [2022-11-20 11:27:32,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 350 transitions, 824 flow [2022-11-20 11:27:32,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 350 transitions, 821 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:27:32,162 INFO L231 Difference]: Finished difference. Result has 334 places, 331 transitions, 689 flow [2022-11-20 11:27:32,162 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=689, PETRI_PLACES=334, PETRI_TRANSITIONS=331} [2022-11-20 11:27:32,163 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -96 predicate places. [2022-11-20 11:27:32,163 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 331 transitions, 689 flow [2022-11-20 11:27:32,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:32,163 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:32,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:32,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:27:32,164 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:32,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:32,164 INFO L85 PathProgramCache]: Analyzing trace with hash 88902015, now seen corresponding path program 1 times [2022-11-20 11:27:32,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:32,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789709239] [2022-11-20 11:27:32,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:32,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:32,217 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 11:27:32,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:32,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789709239] [2022-11-20 11:27:32,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789709239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:32,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:32,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:32,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495122845] [2022-11-20 11:27:32,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:32,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:32,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:32,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:32,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:32,220 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-20 11:27:32,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 331 transitions, 689 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:32,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:32,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-20 11:27:32,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:33,414 INFO L130 PetriNetUnfolder]: 2007/5156 cut-off events. [2022-11-20 11:27:33,415 INFO L131 PetriNetUnfolder]: For 712/1014 co-relation queries the response was YES. [2022-11-20 11:27:33,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8702 conditions, 5156 events. 2007/5156 cut-off events. For 712/1014 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 38989 event pairs, 774 based on Foata normal form. 0/4393 useless extension candidates. Maximal degree in co-relation 8600. Up to 1469 conditions per place. [2022-11-20 11:27:33,463 INFO L137 encePairwiseOnDemand]: 461/465 looper letters, 44 selfloop transitions, 4 changer transitions 0/352 dead transitions. [2022-11-20 11:27:33,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 352 transitions, 844 flow [2022-11-20 11:27:33,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:33,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:33,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1110 transitions. [2022-11-20 11:27:33,467 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7956989247311828 [2022-11-20 11:27:33,467 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1110 transitions. [2022-11-20 11:27:33,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1110 transitions. [2022-11-20 11:27:33,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:33,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1110 transitions. [2022-11-20 11:27:33,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.0) internal successors, (1110), 3 states have internal predecessors, (1110), 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 11:27:33,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:33,474 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:33,474 INFO L175 Difference]: Start difference. First operand has 334 places, 331 transitions, 689 flow. Second operand 3 states and 1110 transitions. [2022-11-20 11:27:33,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 352 transitions, 844 flow [2022-11-20 11:27:33,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 352 transitions, 841 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:27:33,481 INFO L231 Difference]: Finished difference. Result has 336 places, 333 transitions, 717 flow [2022-11-20 11:27:33,482 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=685, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=717, PETRI_PLACES=336, PETRI_TRANSITIONS=333} [2022-11-20 11:27:33,482 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -94 predicate places. [2022-11-20 11:27:33,482 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 333 transitions, 717 flow [2022-11-20 11:27:33,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:33,483 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:33,483 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:33,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:27:33,484 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:33,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:33,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1090045654, now seen corresponding path program 1 times [2022-11-20 11:27:33,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:33,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137200407] [2022-11-20 11:27:33,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:33,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:33,539 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 11:27:33,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:33,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137200407] [2022-11-20 11:27:33,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137200407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:33,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:33,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:27:33,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403237844] [2022-11-20 11:27:33,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:33,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:33,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:33,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:33,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:33,543 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-20 11:27:33,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 333 transitions, 717 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:33,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:33,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-20 11:27:33,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:35,585 INFO L130 PetriNetUnfolder]: 2826/7505 cut-off events. [2022-11-20 11:27:35,586 INFO L131 PetriNetUnfolder]: For 3053/3633 co-relation queries the response was YES. [2022-11-20 11:27:35,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13412 conditions, 7505 events. 2826/7505 cut-off events. For 3053/3633 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 63985 event pairs, 1117 based on Foata normal form. 0/6382 useless extension candidates. Maximal degree in co-relation 13309. Up to 2207 conditions per place. [2022-11-20 11:27:35,644 INFO L137 encePairwiseOnDemand]: 461/465 looper letters, 50 selfloop transitions, 4 changer transitions 0/357 dead transitions. [2022-11-20 11:27:35,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 357 transitions, 911 flow [2022-11-20 11:27:35,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:35,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:27:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1110 transitions. [2022-11-20 11:27:35,648 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7956989247311828 [2022-11-20 11:27:35,648 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1110 transitions. [2022-11-20 11:27:35,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1110 transitions. [2022-11-20 11:27:35,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:35,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1110 transitions. [2022-11-20 11:27:35,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.0) internal successors, (1110), 3 states have internal predecessors, (1110), 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 11:27:35,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:35,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 11:27:35,656 INFO L175 Difference]: Start difference. First operand has 336 places, 333 transitions, 717 flow. Second operand 3 states and 1110 transitions. [2022-11-20 11:27:35,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 357 transitions, 911 flow [2022-11-20 11:27:35,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 357 transitions, 897 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:35,664 INFO L231 Difference]: Finished difference. Result has 337 places, 335 transitions, 739 flow [2022-11-20 11:27:35,664 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=739, PETRI_PLACES=337, PETRI_TRANSITIONS=335} [2022-11-20 11:27:35,665 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -93 predicate places. [2022-11-20 11:27:35,665 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 335 transitions, 739 flow [2022-11-20 11:27:35,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 11:27:35,666 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:35,666 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:35,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 11:27:35,667 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:35,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:35,667 INFO L85 PathProgramCache]: Analyzing trace with hash 149702676, now seen corresponding path program 1 times [2022-11-20 11:27:35,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:35,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212951866] [2022-11-20 11:27:35,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:35,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:36,266 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 11:27:36,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:36,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212951866] [2022-11-20 11:27:36,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212951866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:36,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:36,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:27:36,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042400710] [2022-11-20 11:27:36,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:36,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:27:36,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:36,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:27:36,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:27:36,270 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 465 [2022-11-20 11:27:36,272 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 335 transitions, 739 flow. Second operand has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 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 11:27:36,272 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:36,272 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 465 [2022-11-20 11:27:36,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:44,818 INFO L130 PetriNetUnfolder]: 19194/29365 cut-off events. [2022-11-20 11:27:44,818 INFO L131 PetriNetUnfolder]: For 23996/23996 co-relation queries the response was YES. [2022-11-20 11:27:44,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70342 conditions, 29365 events. 19194/29365 cut-off events. For 23996/23996 co-relation queries the response was YES. Maximal size of possible extension queue 811. Compared 185111 event pairs, 2275 based on Foata normal form. 0/28042 useless extension candidates. Maximal degree in co-relation 70238. Up to 12605 conditions per place. [2022-11-20 11:27:45,106 INFO L137 encePairwiseOnDemand]: 460/465 looper letters, 141 selfloop transitions, 4 changer transitions 0/414 dead transitions. [2022-11-20 11:27:45,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 414 transitions, 1371 flow [2022-11-20 11:27:45,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:27:45,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:27:45,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2020 transitions. [2022-11-20 11:27:45,113 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7240143369175627 [2022-11-20 11:27:45,113 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2020 transitions. [2022-11-20 11:27:45,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2020 transitions. [2022-11-20 11:27:45,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:45,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2020 transitions. [2022-11-20 11:27:45,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 336.6666666666667) internal successors, (2020), 6 states have internal predecessors, (2020), 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 11:27:45,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 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 11:27:45,128 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 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 11:27:45,128 INFO L175 Difference]: Start difference. First operand has 337 places, 335 transitions, 739 flow. Second operand 6 states and 2020 transitions. [2022-11-20 11:27:45,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 414 transitions, 1371 flow [2022-11-20 11:27:45,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 414 transitions, 1339 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:27:45,152 INFO L231 Difference]: Finished difference. Result has 339 places, 334 transitions, 737 flow [2022-11-20 11:27:45,153 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=737, PETRI_PLACES=339, PETRI_TRANSITIONS=334} [2022-11-20 11:27:45,153 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -91 predicate places. [2022-11-20 11:27:45,154 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 334 transitions, 737 flow [2022-11-20 11:27:45,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 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 11:27:45,155 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:45,155 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:45,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 11:27:45,155 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:45,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:45,156 INFO L85 PathProgramCache]: Analyzing trace with hash -610461472, now seen corresponding path program 1 times [2022-11-20 11:27:45,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:45,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540353625] [2022-11-20 11:27:45,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:45,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:46,118 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 11:27:46,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:46,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540353625] [2022-11-20 11:27:46,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540353625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:46,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:46,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:27:46,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292791582] [2022-11-20 11:27:46,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:46,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:27:46,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:46,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:27:46,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:27:46,126 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 465 [2022-11-20 11:27:46,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 334 transitions, 737 flow. Second operand has 6 states, 6 states have (on average 322.3333333333333) internal successors, (1934), 6 states have internal predecessors, (1934), 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 11:27:46,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:46,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 465 [2022-11-20 11:27:46,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:27:54,275 INFO L130 PetriNetUnfolder]: 17272/26833 cut-off events. [2022-11-20 11:27:54,275 INFO L131 PetriNetUnfolder]: For 17731/17731 co-relation queries the response was YES. [2022-11-20 11:27:54,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63914 conditions, 26833 events. 17272/26833 cut-off events. For 17731/17731 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 170485 event pairs, 7743 based on Foata normal form. 0/25627 useless extension candidates. Maximal degree in co-relation 63810. Up to 16456 conditions per place. [2022-11-20 11:27:54,483 INFO L137 encePairwiseOnDemand]: 460/465 looper letters, 124 selfloop transitions, 4 changer transitions 0/397 dead transitions. [2022-11-20 11:27:54,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 397 transitions, 1263 flow [2022-11-20 11:27:54,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:27:54,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:27:54,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2007 transitions. [2022-11-20 11:27:54,489 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7193548387096774 [2022-11-20 11:27:54,489 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2007 transitions. [2022-11-20 11:27:54,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2007 transitions. [2022-11-20 11:27:54,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:27:54,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2007 transitions. [2022-11-20 11:27:54,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 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 11:27:54,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 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 11:27:54,500 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 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 11:27:54,501 INFO L175 Difference]: Start difference. First operand has 339 places, 334 transitions, 737 flow. Second operand 6 states and 2007 transitions. [2022-11-20 11:27:54,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 397 transitions, 1263 flow [2022-11-20 11:27:54,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 397 transitions, 1256 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:27:54,516 INFO L231 Difference]: Finished difference. Result has 339 places, 333 transitions, 736 flow [2022-11-20 11:27:54,517 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=736, PETRI_PLACES=339, PETRI_TRANSITIONS=333} [2022-11-20 11:27:54,518 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -91 predicate places. [2022-11-20 11:27:54,518 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 333 transitions, 736 flow [2022-11-20 11:27:54,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 322.3333333333333) internal successors, (1934), 6 states have internal predecessors, (1934), 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 11:27:54,519 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:27:54,519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:54,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 11:27:54,520 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:27:54,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:54,520 INFO L85 PathProgramCache]: Analyzing trace with hash -2002478858, now seen corresponding path program 1 times [2022-11-20 11:27:54,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:54,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054828565] [2022-11-20 11:27:54,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:54,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:55,187 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 11:27:55,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:55,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054828565] [2022-11-20 11:27:55,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054828565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:55,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:55,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:27:55,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135708279] [2022-11-20 11:27:55,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:55,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:27:55,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:27:55,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:27:55,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:27:55,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 465 [2022-11-20 11:27:55,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 333 transitions, 736 flow. Second operand has 6 states, 6 states have (on average 323.5) internal successors, (1941), 6 states have internal predecessors, (1941), 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 11:27:55,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:27:55,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 465 [2022-11-20 11:27:55,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:28:03,346 INFO L130 PetriNetUnfolder]: 16762/26363 cut-off events. [2022-11-20 11:28:03,346 INFO L131 PetriNetUnfolder]: For 16396/16396 co-relation queries the response was YES. [2022-11-20 11:28:03,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61710 conditions, 26363 events. 16762/26363 cut-off events. For 16396/16396 co-relation queries the response was YES. Maximal size of possible extension queue 739. Compared 169372 event pairs, 9395 based on Foata normal form. 0/25237 useless extension candidates. Maximal degree in co-relation 61606. Up to 20229 conditions per place. [2022-11-20 11:28:03,546 INFO L137 encePairwiseOnDemand]: 460/465 looper letters, 107 selfloop transitions, 4 changer transitions 0/380 dead transitions. [2022-11-20 11:28:03,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 380 transitions, 1180 flow [2022-11-20 11:28:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:28:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:28:03,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1994 transitions. [2022-11-20 11:28:03,554 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7146953405017921 [2022-11-20 11:28:03,555 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1994 transitions. [2022-11-20 11:28:03,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1994 transitions. [2022-11-20 11:28:03,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:28:03,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1994 transitions. [2022-11-20 11:28:03,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 332.3333333333333) internal successors, (1994), 6 states have internal predecessors, (1994), 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 11:28:03,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 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 11:28:03,568 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 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 11:28:03,568 INFO L175 Difference]: Start difference. First operand has 339 places, 333 transitions, 736 flow. Second operand 6 states and 1994 transitions. [2022-11-20 11:28:03,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 380 transitions, 1180 flow [2022-11-20 11:28:03,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 380 transitions, 1173 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:28:03,593 INFO L231 Difference]: Finished difference. Result has 339 places, 332 transitions, 735 flow [2022-11-20 11:28:03,594 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=735, PETRI_PLACES=339, PETRI_TRANSITIONS=332} [2022-11-20 11:28:03,595 INFO L288 CegarLoopForPetriNet]: 430 programPoint places, -91 predicate places. [2022-11-20 11:28:03,595 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 332 transitions, 735 flow [2022-11-20 11:28:03,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.5) internal successors, (1941), 6 states have internal predecessors, (1941), 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 11:28:03,596 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:28:03,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:03,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 11:28:03,597 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 11:28:03,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:03,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1725970254, now seen corresponding path program 1 times [2022-11-20 11:28:03,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:03,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383042136] [2022-11-20 11:28:03,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:03,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:04,582 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 11:28:04,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:04,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383042136] [2022-11-20 11:28:04,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383042136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:04,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:04,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:28:04,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722929014] [2022-11-20 11:28:04,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:04,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:28:04,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:28:04,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:28:04,587 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 465 [2022-11-20 11:28:04,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 332 transitions, 735 flow. Second operand has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 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 11:28:04,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:28:04,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 465 [2022-11-20 11:28:04,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand