./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/security.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/security.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 417dec4be084b2867b601c43d125afd61f7d3912bd17641ca10c0f094ab6abe0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:50:25,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:50:25,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:50:25,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:50:25,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:50:25,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:50:25,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:50:25,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:50:25,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:50:25,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:50:25,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:50:25,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:50:25,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:50:25,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:50:25,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:50:25,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:50:25,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:50:25,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:50:25,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:50:25,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:50:25,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:50:25,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:50:25,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:50:25,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:50:25,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:50:25,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:50:25,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:50:25,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:50:25,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:50:25,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:50:25,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:50:25,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:50:25,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:50:25,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:50:25,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:50:25,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:50:25,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:50:25,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:50:25,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:50:25,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:50:25,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:50:25,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:50:25,435 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:50:25,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:50:25,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:50:25,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:50:25,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:50:25,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:50:25,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:50:25,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:50:25,438 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:50:25,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:50:25,439 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:50:25,439 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:50:25,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:50:25,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:50:25,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:50:25,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:50:25,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:50:25,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:50:25,441 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:50:25,441 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:50:25,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:50:25,441 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:50:25,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:50:25,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:50:25,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:50:25,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:50:25,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:50:25,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:50:25,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:50:25,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:50:25,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:50:25,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:50:25,444 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:50:25,445 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:50:25,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:50:25,445 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_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 417dec4be084b2867b601c43d125afd61f7d3912bd17641ca10c0f094ab6abe0 [2022-11-18 20:50:25,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:50:25,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:50:25,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:50:25,767 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:50:25,768 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:50:25,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/security.wvr.c [2022-11-18 20:50:25,834 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/data/afcb1b5a0/28f6d84ef9f0429595ba9b20a6a71375/FLAG12bf41b3a [2022-11-18 20:50:26,226 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:50:26,227 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/sv-benchmarks/c/weaver/security.wvr.c [2022-11-18 20:50:26,234 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/data/afcb1b5a0/28f6d84ef9f0429595ba9b20a6a71375/FLAG12bf41b3a [2022-11-18 20:50:26,634 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/data/afcb1b5a0/28f6d84ef9f0429595ba9b20a6a71375 [2022-11-18 20:50:26,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:50:26,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:50:26,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:50:26,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:50:26,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:50:26,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:50:26" (1/1) ... [2022-11-18 20:50:26,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45fecb97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:26, skipping insertion in model container [2022-11-18 20:50:26,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:50:26" (1/1) ... [2022-11-18 20:50:26,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:50:26,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:50:26,942 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/sv-benchmarks/c/weaver/security.wvr.c[1931,1944] [2022-11-18 20:50:26,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:50:26,955 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:50:26,996 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/sv-benchmarks/c/weaver/security.wvr.c[1931,1944] [2022-11-18 20:50:27,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:50:27,016 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:50:27,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:27 WrapperNode [2022-11-18 20:50:27,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:50:27,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:50:27,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:50:27,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:50:27,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:27" (1/1) ... [2022-11-18 20:50:27,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:27" (1/1) ... [2022-11-18 20:50:27,057 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-11-18 20:50:27,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:50:27,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:50:27,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:50:27,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:50:27,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:27" (1/1) ... [2022-11-18 20:50:27,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:27" (1/1) ... [2022-11-18 20:50:27,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:27" (1/1) ... [2022-11-18 20:50:27,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:27" (1/1) ... [2022-11-18 20:50:27,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:27" (1/1) ... [2022-11-18 20:50:27,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:27" (1/1) ... [2022-11-18 20:50:27,092 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:27" (1/1) ... [2022-11-18 20:50:27,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:27" (1/1) ... [2022-11-18 20:50:27,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:50:27,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:50:27,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:50:27,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:50:27,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:27" (1/1) ... [2022-11-18 20:50:27,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:50:27,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:50:27,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:50:27,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:50:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:50:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:50:27,177 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:50:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:50:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:50:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:50:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:50:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:50:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:50:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:50:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:50:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:50:27,182 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:50:27,272 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:50:27,274 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:50:27,611 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:50:27,628 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:50:27,628 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:50:27,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:27 BoogieIcfgContainer [2022-11-18 20:50:27,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:50:27,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:50:27,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:50:27,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:50:27,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:50:26" (1/3) ... [2022-11-18 20:50:27,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187bddf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:50:27, skipping insertion in model container [2022-11-18 20:50:27,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:27" (2/3) ... [2022-11-18 20:50:27,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187bddf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:50:27, skipping insertion in model container [2022-11-18 20:50:27,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:27" (3/3) ... [2022-11-18 20:50:27,645 INFO L112 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2022-11-18 20:50:27,653 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:50:27,662 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:50:27,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-11-18 20:50:27,663 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:50:27,748 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:50:27,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 161 transitions, 338 flow [2022-11-18 20:50:27,863 INFO L130 PetriNetUnfolder]: 3/159 cut-off events. [2022-11-18 20:50:27,864 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:50:27,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 159 events. 3/159 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 246 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2022-11-18 20:50:27,873 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 161 transitions, 338 flow [2022-11-18 20:50:27,878 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 141 transitions, 294 flow [2022-11-18 20:50:27,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:50:27,901 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;@30cbf2a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:50:27,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-11-18 20:50:27,909 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-18 20:50:27,909 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:50:27,910 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:27,910 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] [2022-11-18 20:50:27,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:27,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:27,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1389607255, now seen corresponding path program 1 times [2022-11-18 20:50:27,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:27,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558245150] [2022-11-18 20:50:27,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:27,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:28,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:28,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:28,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558245150] [2022-11-18 20:50:28,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558245150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:28,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:28,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:28,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457629806] [2022-11-18 20:50:28,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:28,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:28,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:28,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:28,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:28,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 161 [2022-11-18 20:50:28,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 141 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:28,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 161 [2022-11-18 20:50:28,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:28,389 INFO L130 PetriNetUnfolder]: 18/263 cut-off events. [2022-11-18 20:50:28,389 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-18 20:50:28,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 263 events. 18/263 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 866 event pairs, 15 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 233. Up to 44 conditions per place. [2022-11-18 20:50:28,395 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 13 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2022-11-18 20:50:28,395 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 140 transitions, 322 flow [2022-11-18 20:50:28,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:28,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:28,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2022-11-18 20:50:28,410 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9213250517598344 [2022-11-18 20:50:28,410 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions. [2022-11-18 20:50:28,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions. [2022-11-18 20:50:28,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:28,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions. [2022-11-18 20:50:28,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,426 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,428 INFO L175 Difference]: Start difference. First operand has 146 places, 141 transitions, 294 flow. Second operand 3 states and 445 transitions. [2022-11-18 20:50:28,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 140 transitions, 322 flow [2022-11-18 20:50:28,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 140 transitions, 314 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:50:28,437 INFO L231 Difference]: Finished difference. Result has 143 places, 140 transitions, 288 flow [2022-11-18 20:50:28,439 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=143, PETRI_TRANSITIONS=140} [2022-11-18 20:50:28,443 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -3 predicate places. [2022-11-18 20:50:28,443 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 140 transitions, 288 flow [2022-11-18 20:50:28,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,444 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:28,444 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:28,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:50:28,445 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:28,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:28,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1839248274, now seen corresponding path program 1 times [2022-11-18 20:50:28,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:28,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222236111] [2022-11-18 20:50:28,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:28,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:28,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:28,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:28,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222236111] [2022-11-18 20:50:28,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222236111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:28,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:28,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:28,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514069144] [2022-11-18 20:50:28,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:28,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:28,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:28,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:28,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:28,565 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2022-11-18 20:50:28,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 140 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:28,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2022-11-18 20:50:28,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:28,677 INFO L130 PetriNetUnfolder]: 10/183 cut-off events. [2022-11-18 20:50:28,677 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:50:28,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 183 events. 10/183 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 545 event pairs, 5 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 190. Up to 20 conditions per place. [2022-11-18 20:50:28,684 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 10 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2022-11-18 20:50:28,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 140 transitions, 313 flow [2022-11-18 20:50:28,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:28,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:28,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2022-11-18 20:50:28,689 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9399585921325052 [2022-11-18 20:50:28,689 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2022-11-18 20:50:28,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2022-11-18 20:50:28,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:28,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2022-11-18 20:50:28,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,699 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,699 INFO L175 Difference]: Start difference. First operand has 143 places, 140 transitions, 288 flow. Second operand 3 states and 454 transitions. [2022-11-18 20:50:28,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 140 transitions, 313 flow [2022-11-18 20:50:28,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 140 transitions, 309 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:50:28,706 INFO L231 Difference]: Finished difference. Result has 142 places, 139 transitions, 286 flow [2022-11-18 20:50:28,707 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=142, PETRI_TRANSITIONS=139} [2022-11-18 20:50:28,708 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2022-11-18 20:50:28,708 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 139 transitions, 286 flow [2022-11-18 20:50:28,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,709 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:28,709 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] [2022-11-18 20:50:28,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:50:28,710 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:28,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:28,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1747204638, now seen corresponding path program 1 times [2022-11-18 20:50:28,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:28,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973458481] [2022-11-18 20:50:28,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:28,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:28,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:28,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:28,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973458481] [2022-11-18 20:50:28,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973458481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:28,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:28,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:28,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800842045] [2022-11-18 20:50:28,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:28,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:28,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:28,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:28,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:28,789 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 161 [2022-11-18 20:50:28,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 139 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:28,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 161 [2022-11-18 20:50:28,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:28,840 INFO L130 PetriNetUnfolder]: 5/221 cut-off events. [2022-11-18 20:50:28,840 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:50:28,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 221 events. 5/221 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 704 event pairs, 2 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 132. Up to 11 conditions per place. [2022-11-18 20:50:28,842 INFO L137 encePairwiseOnDemand]: 159/161 looper letters, 10 selfloop transitions, 1 changer transitions 0/141 dead transitions. [2022-11-18 20:50:28,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 315 flow [2022-11-18 20:50:28,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:28,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:28,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2022-11-18 20:50:28,844 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503105590062112 [2022-11-18 20:50:28,844 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 459 transitions. [2022-11-18 20:50:28,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 459 transitions. [2022-11-18 20:50:28,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:28,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 459 transitions. [2022-11-18 20:50:28,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,848 INFO L175 Difference]: Start difference. First operand has 142 places, 139 transitions, 286 flow. Second operand 3 states and 459 transitions. [2022-11-18 20:50:28,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 315 flow [2022-11-18 20:50:28,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 141 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:50:28,851 INFO L231 Difference]: Finished difference. Result has 141 places, 138 transitions, 282 flow [2022-11-18 20:50:28,852 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=141, PETRI_TRANSITIONS=138} [2022-11-18 20:50:28,852 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -5 predicate places. [2022-11-18 20:50:28,853 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 138 transitions, 282 flow [2022-11-18 20:50:28,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,853 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:28,853 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] [2022-11-18 20:50:28,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:50:28,854 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:28,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:28,854 INFO L85 PathProgramCache]: Analyzing trace with hash 722610345, now seen corresponding path program 1 times [2022-11-18 20:50:28,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:28,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369731370] [2022-11-18 20:50:28,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:28,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:28,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:28,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:28,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369731370] [2022-11-18 20:50:28,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369731370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:28,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:28,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:28,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588481768] [2022-11-18 20:50:28,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:28,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:28,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:28,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:28,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:28,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2022-11-18 20:50:28,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 138 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:28,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2022-11-18 20:50:28,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:28,975 INFO L130 PetriNetUnfolder]: 17/271 cut-off events. [2022-11-18 20:50:28,975 INFO L131 PetriNetUnfolder]: For 18/20 co-relation queries the response was YES. [2022-11-18 20:50:28,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 271 events. 17/271 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 953 event pairs, 4 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 208. Up to 32 conditions per place. [2022-11-18 20:50:28,978 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 10 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2022-11-18 20:50:28,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 138 transitions, 307 flow [2022-11-18 20:50:28,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:28,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:28,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2022-11-18 20:50:28,979 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9399585921325052 [2022-11-18 20:50:28,980 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2022-11-18 20:50:28,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2022-11-18 20:50:28,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:28,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2022-11-18 20:50:28,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,983 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,983 INFO L175 Difference]: Start difference. First operand has 141 places, 138 transitions, 282 flow. Second operand 3 states and 454 transitions. [2022-11-18 20:50:28,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 138 transitions, 307 flow [2022-11-18 20:50:28,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 138 transitions, 306 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:50:28,986 INFO L231 Difference]: Finished difference. Result has 141 places, 137 transitions, 283 flow [2022-11-18 20:50:28,986 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=141, PETRI_TRANSITIONS=137} [2022-11-18 20:50:28,987 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -5 predicate places. [2022-11-18 20:50:28,987 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 137 transitions, 283 flow [2022-11-18 20:50:28,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:28,988 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:28,988 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] [2022-11-18 20:50:28,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:50:28,988 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:28,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:28,989 INFO L85 PathProgramCache]: Analyzing trace with hash 238983300, now seen corresponding path program 1 times [2022-11-18 20:50:28,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:28,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950182075] [2022-11-18 20:50:28,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:28,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:29,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:29,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:29,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950182075] [2022-11-18 20:50:29,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950182075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:29,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:29,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:29,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817954086] [2022-11-18 20:50:29,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:29,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:29,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:29,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:29,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:29,035 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2022-11-18 20:50:29,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 137 transitions, 283 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:29,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2022-11-18 20:50:29,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:29,110 INFO L130 PetriNetUnfolder]: 16/309 cut-off events. [2022-11-18 20:50:29,110 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:50:29,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 309 events. 16/309 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1365 event pairs, 11 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 246. Up to 40 conditions per place. [2022-11-18 20:50:29,113 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 13 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2022-11-18 20:50:29,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 137 transitions, 314 flow [2022-11-18 20:50:29,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:29,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 448 transitions. [2022-11-18 20:50:29,115 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.927536231884058 [2022-11-18 20:50:29,115 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 448 transitions. [2022-11-18 20:50:29,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 448 transitions. [2022-11-18 20:50:29,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:29,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 448 transitions. [2022-11-18 20:50:29,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,119 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,119 INFO L175 Difference]: Start difference. First operand has 141 places, 137 transitions, 283 flow. Second operand 3 states and 448 transitions. [2022-11-18 20:50:29,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 137 transitions, 314 flow [2022-11-18 20:50:29,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 137 transitions, 310 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:50:29,123 INFO L231 Difference]: Finished difference. Result has 140 places, 136 transitions, 281 flow [2022-11-18 20:50:29,124 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=140, PETRI_TRANSITIONS=136} [2022-11-18 20:50:29,127 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -6 predicate places. [2022-11-18 20:50:29,127 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 136 transitions, 281 flow [2022-11-18 20:50:29,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,128 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:29,128 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:29,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:50:29,129 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:29,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:29,130 INFO L85 PathProgramCache]: Analyzing trace with hash 395550536, now seen corresponding path program 1 times [2022-11-18 20:50:29,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:29,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031009215] [2022-11-18 20:50:29,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:29,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:29,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:29,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:29,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031009215] [2022-11-18 20:50:29,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031009215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:29,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:29,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:29,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839087477] [2022-11-18 20:50:29,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:29,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:29,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:29,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:29,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:29,207 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2022-11-18 20:50:29,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 136 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:29,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2022-11-18 20:50:29,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:29,283 INFO L130 PetriNetUnfolder]: 15/306 cut-off events. [2022-11-18 20:50:29,283 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:50:29,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 306 events. 15/306 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1333 event pairs, 10 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 239. Up to 37 conditions per place. [2022-11-18 20:50:29,286 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 12 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2022-11-18 20:50:29,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 136 transitions, 310 flow [2022-11-18 20:50:29,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:29,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:29,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2022-11-18 20:50:29,288 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9254658385093167 [2022-11-18 20:50:29,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 447 transitions. [2022-11-18 20:50:29,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 447 transitions. [2022-11-18 20:50:29,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:29,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 447 transitions. [2022-11-18 20:50:29,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,292 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,292 INFO L175 Difference]: Start difference. First operand has 140 places, 136 transitions, 281 flow. Second operand 3 states and 447 transitions. [2022-11-18 20:50:29,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 136 transitions, 310 flow [2022-11-18 20:50:29,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 136 transitions, 306 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:50:29,296 INFO L231 Difference]: Finished difference. Result has 139 places, 135 transitions, 279 flow [2022-11-18 20:50:29,296 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=139, PETRI_TRANSITIONS=135} [2022-11-18 20:50:29,298 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -7 predicate places. [2022-11-18 20:50:29,298 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 135 transitions, 279 flow [2022-11-18 20:50:29,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,300 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:29,300 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] [2022-11-18 20:50:29,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:50:29,301 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:29,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:29,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1084068079, now seen corresponding path program 1 times [2022-11-18 20:50:29,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:29,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731988730] [2022-11-18 20:50:29,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:29,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:29,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:29,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731988730] [2022-11-18 20:50:29,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731988730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:29,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:29,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:50:29,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945418325] [2022-11-18 20:50:29,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:29,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:50:29,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:29,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:50:29,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:50:29,782 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2022-11-18 20:50:29,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 135 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 138.83333333333334) internal successors, (833), 6 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:29,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2022-11-18 20:50:29,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:29,872 INFO L130 PetriNetUnfolder]: 1/164 cut-off events. [2022-11-18 20:50:29,872 INFO L131 PetriNetUnfolder]: For 2/16 co-relation queries the response was YES. [2022-11-18 20:50:29,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 164 events. 1/164 cut-off events. For 2/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 347 event pairs, 0 based on Foata normal form. 8/154 useless extension candidates. Maximal degree in co-relation 153. Up to 18 conditions per place. [2022-11-18 20:50:29,873 INFO L137 encePairwiseOnDemand]: 156/161 looper letters, 15 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2022-11-18 20:50:29,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 134 transitions, 315 flow [2022-11-18 20:50:29,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:50:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:50:29,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 842 transitions. [2022-11-18 20:50:29,877 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8716356107660456 [2022-11-18 20:50:29,877 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 842 transitions. [2022-11-18 20:50:29,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 842 transitions. [2022-11-18 20:50:29,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:29,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 842 transitions. [2022-11-18 20:50:29,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.33333333333334) internal successors, (842), 6 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,882 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,882 INFO L175 Difference]: Start difference. First operand has 139 places, 135 transitions, 279 flow. Second operand 6 states and 842 transitions. [2022-11-18 20:50:29,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 134 transitions, 315 flow [2022-11-18 20:50:29,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 134 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:50:29,885 INFO L231 Difference]: Finished difference. Result has 141 places, 134 transitions, 281 flow [2022-11-18 20:50:29,885 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=281, PETRI_PLACES=141, PETRI_TRANSITIONS=134} [2022-11-18 20:50:29,886 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -5 predicate places. [2022-11-18 20:50:29,887 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 134 transitions, 281 flow [2022-11-18 20:50:29,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.83333333333334) internal successors, (833), 6 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,888 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:29,888 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] [2022-11-18 20:50:29,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:50:29,888 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:29,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:29,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1503907074, now seen corresponding path program 1 times [2022-11-18 20:50:29,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:29,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042814822] [2022-11-18 20:50:29,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:29,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:29,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:29,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:29,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042814822] [2022-11-18 20:50:29,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042814822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:29,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:29,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:29,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583049088] [2022-11-18 20:50:29,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:29,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:29,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:29,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:29,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:29,924 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 161 [2022-11-18 20:50:29,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 134 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:29,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:29,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 161 [2022-11-18 20:50:29,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:30,002 INFO L130 PetriNetUnfolder]: 11/294 cut-off events. [2022-11-18 20:50:30,002 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:50:30,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 294 events. 11/294 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1200 event pairs, 4 based on Foata normal form. 0/258 useless extension candidates. Maximal degree in co-relation 284. Up to 16 conditions per place. [2022-11-18 20:50:30,005 INFO L137 encePairwiseOnDemand]: 159/161 looper letters, 10 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2022-11-18 20:50:30,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 134 transitions, 304 flow [2022-11-18 20:50:30,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:30,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:30,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2022-11-18 20:50:30,007 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9316770186335404 [2022-11-18 20:50:30,007 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2022-11-18 20:50:30,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2022-11-18 20:50:30,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:30,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2022-11-18 20:50:30,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,010 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,010 INFO L175 Difference]: Start difference. First operand has 141 places, 134 transitions, 281 flow. Second operand 3 states and 450 transitions. [2022-11-18 20:50:30,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 134 transitions, 304 flow [2022-11-18 20:50:30,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 134 transitions, 297 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:50:30,014 INFO L231 Difference]: Finished difference. Result has 138 places, 133 transitions, 274 flow [2022-11-18 20:50:30,014 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=138, PETRI_TRANSITIONS=133} [2022-11-18 20:50:30,016 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -8 predicate places. [2022-11-18 20:50:30,017 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 133 transitions, 274 flow [2022-11-18 20:50:30,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,017 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:30,017 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] [2022-11-18 20:50:30,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:50:30,018 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:30,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:30,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1770179986, now seen corresponding path program 1 times [2022-11-18 20:50:30,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:30,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710083162] [2022-11-18 20:50:30,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:30,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:30,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:30,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:30,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710083162] [2022-11-18 20:50:30,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710083162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:30,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:30,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:30,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995504026] [2022-11-18 20:50:30,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:30,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:30,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:30,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:30,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:30,061 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 161 [2022-11-18 20:50:30,062 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,062 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:30,062 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 161 [2022-11-18 20:50:30,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:30,126 INFO L130 PetriNetUnfolder]: 8/311 cut-off events. [2022-11-18 20:50:30,127 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-18 20:50:30,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 311 events. 8/311 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1167 event pairs, 6 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 296. Up to 17 conditions per place. [2022-11-18 20:50:30,128 INFO L137 encePairwiseOnDemand]: 159/161 looper letters, 9 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2022-11-18 20:50:30,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 134 transitions, 298 flow [2022-11-18 20:50:30,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:30,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:30,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2022-11-18 20:50:30,131 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.94824016563147 [2022-11-18 20:50:30,131 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 458 transitions. [2022-11-18 20:50:30,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 458 transitions. [2022-11-18 20:50:30,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:30,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 458 transitions. [2022-11-18 20:50:30,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,134 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,134 INFO L175 Difference]: Start difference. First operand has 138 places, 133 transitions, 274 flow. Second operand 3 states and 458 transitions. [2022-11-18 20:50:30,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 134 transitions, 298 flow [2022-11-18 20:50:30,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 134 transitions, 297 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:50:30,137 INFO L231 Difference]: Finished difference. Result has 138 places, 132 transitions, 273 flow [2022-11-18 20:50:30,137 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=138, PETRI_TRANSITIONS=132} [2022-11-18 20:50:30,138 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -8 predicate places. [2022-11-18 20:50:30,138 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 132 transitions, 273 flow [2022-11-18 20:50:30,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,139 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:30,139 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] [2022-11-18 20:50:30,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:50:30,139 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:30,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:30,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2145674176, now seen corresponding path program 1 times [2022-11-18 20:50:30,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:30,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836791542] [2022-11-18 20:50:30,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:30,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:30,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:30,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:30,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836791542] [2022-11-18 20:50:30,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836791542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:30,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:30,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:30,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264879480] [2022-11-18 20:50:30,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:30,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:30,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:30,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:30,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:30,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 161 [2022-11-18 20:50:30,201 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 132 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:30,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 161 [2022-11-18 20:50:30,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:30,282 INFO L130 PetriNetUnfolder]: 28/417 cut-off events. [2022-11-18 20:50:30,282 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 20:50:30,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 417 events. 28/417 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2153 event pairs, 16 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 415. Up to 70 conditions per place. [2022-11-18 20:50:30,285 INFO L137 encePairwiseOnDemand]: 157/161 looper letters, 11 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2022-11-18 20:50:30,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 133 transitions, 302 flow [2022-11-18 20:50:30,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:30,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:30,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2022-11-18 20:50:30,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.937888198757764 [2022-11-18 20:50:30,287 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2022-11-18 20:50:30,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2022-11-18 20:50:30,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:30,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2022-11-18 20:50:30,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,291 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,291 INFO L175 Difference]: Start difference. First operand has 138 places, 132 transitions, 273 flow. Second operand 3 states and 453 transitions. [2022-11-18 20:50:30,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 133 transitions, 302 flow [2022-11-18 20:50:30,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 133 transitions, 301 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:50:30,294 INFO L231 Difference]: Finished difference. Result has 138 places, 132 transitions, 282 flow [2022-11-18 20:50:30,295 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=138, PETRI_TRANSITIONS=132} [2022-11-18 20:50:30,296 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -8 predicate places. [2022-11-18 20:50:30,296 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 132 transitions, 282 flow [2022-11-18 20:50:30,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,296 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:30,297 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] [2022-11-18 20:50:30,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:50:30,297 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:30,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:30,298 INFO L85 PathProgramCache]: Analyzing trace with hash 306346260, now seen corresponding path program 1 times [2022-11-18 20:50:30,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:30,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477078235] [2022-11-18 20:50:30,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:30,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:30,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:30,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:30,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477078235] [2022-11-18 20:50:30,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477078235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:30,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:30,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:30,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558197964] [2022-11-18 20:50:30,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:30,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:30,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:30,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:30,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:30,352 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2022-11-18 20:50:30,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 132 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:30,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2022-11-18 20:50:30,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:30,421 INFO L130 PetriNetUnfolder]: 30/338 cut-off events. [2022-11-18 20:50:30,421 INFO L131 PetriNetUnfolder]: For 32/34 co-relation queries the response was YES. [2022-11-18 20:50:30,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 338 events. 30/338 cut-off events. For 32/34 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1744 event pairs, 16 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 389. Up to 64 conditions per place. [2022-11-18 20:50:30,423 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 13 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2022-11-18 20:50:30,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 132 transitions, 313 flow [2022-11-18 20:50:30,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:30,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 448 transitions. [2022-11-18 20:50:30,425 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.927536231884058 [2022-11-18 20:50:30,426 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 448 transitions. [2022-11-18 20:50:30,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 448 transitions. [2022-11-18 20:50:30,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:30,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 448 transitions. [2022-11-18 20:50:30,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,429 INFO L175 Difference]: Start difference. First operand has 138 places, 132 transitions, 282 flow. Second operand 3 states and 448 transitions. [2022-11-18 20:50:30,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 132 transitions, 313 flow [2022-11-18 20:50:30,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 132 transitions, 313 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:50:30,432 INFO L231 Difference]: Finished difference. Result has 139 places, 131 transitions, 284 flow [2022-11-18 20:50:30,432 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=139, PETRI_TRANSITIONS=131} [2022-11-18 20:50:30,433 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -7 predicate places. [2022-11-18 20:50:30,433 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 131 transitions, 284 flow [2022-11-18 20:50:30,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,434 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:30,434 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] [2022-11-18 20:50:30,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:50:30,435 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:30,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:30,435 INFO L85 PathProgramCache]: Analyzing trace with hash 706846904, now seen corresponding path program 1 times [2022-11-18 20:50:30,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:30,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906900906] [2022-11-18 20:50:30,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:30,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:30,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:30,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:30,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906900906] [2022-11-18 20:50:30,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906900906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:30,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:30,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:30,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069074715] [2022-11-18 20:50:30,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:30,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:30,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:30,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:30,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:30,468 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2022-11-18 20:50:30,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 131 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:30,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2022-11-18 20:50:30,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:30,533 INFO L130 PetriNetUnfolder]: 28/333 cut-off events. [2022-11-18 20:50:30,533 INFO L131 PetriNetUnfolder]: For 33/35 co-relation queries the response was YES. [2022-11-18 20:50:30,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 333 events. 28/333 cut-off events. For 33/35 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1601 event pairs, 14 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 385. Up to 59 conditions per place. [2022-11-18 20:50:30,535 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 12 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2022-11-18 20:50:30,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 131 transitions, 313 flow [2022-11-18 20:50:30,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:30,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:30,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2022-11-18 20:50:30,537 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9254658385093167 [2022-11-18 20:50:30,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 447 transitions. [2022-11-18 20:50:30,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 447 transitions. [2022-11-18 20:50:30,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:30,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 447 transitions. [2022-11-18 20:50:30,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,541 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,541 INFO L175 Difference]: Start difference. First operand has 139 places, 131 transitions, 284 flow. Second operand 3 states and 447 transitions. [2022-11-18 20:50:30,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 131 transitions, 313 flow [2022-11-18 20:50:30,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 131 transitions, 309 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:50:30,544 INFO L231 Difference]: Finished difference. Result has 138 places, 130 transitions, 282 flow [2022-11-18 20:50:30,545 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=138, PETRI_TRANSITIONS=130} [2022-11-18 20:50:30,545 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -8 predicate places. [2022-11-18 20:50:30,546 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 130 transitions, 282 flow [2022-11-18 20:50:30,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,546 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:30,546 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] [2022-11-18 20:50:30,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:50:30,547 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:30,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:30,547 INFO L85 PathProgramCache]: Analyzing trace with hash -443654219, now seen corresponding path program 1 times [2022-11-18 20:50:30,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:30,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314337372] [2022-11-18 20:50:30,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:30,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:30,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:30,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:30,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314337372] [2022-11-18 20:50:30,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314337372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:30,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:30,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:30,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893850478] [2022-11-18 20:50:30,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:30,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:30,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:30,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:30,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:30,589 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 161 [2022-11-18 20:50:30,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 130 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:30,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 161 [2022-11-18 20:50:30,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:30,656 INFO L130 PetriNetUnfolder]: 20/301 cut-off events. [2022-11-18 20:50:30,657 INFO L131 PetriNetUnfolder]: For 25/27 co-relation queries the response was YES. [2022-11-18 20:50:30,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 301 events. 20/301 cut-off events. For 25/27 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1330 event pairs, 8 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 333. Up to 25 conditions per place. [2022-11-18 20:50:30,659 INFO L137 encePairwiseOnDemand]: 159/161 looper letters, 10 selfloop transitions, 1 changer transitions 0/130 dead transitions. [2022-11-18 20:50:30,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 130 transitions, 305 flow [2022-11-18 20:50:30,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:30,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:30,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2022-11-18 20:50:30,661 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9316770186335404 [2022-11-18 20:50:30,662 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2022-11-18 20:50:30,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2022-11-18 20:50:30,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:30,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2022-11-18 20:50:30,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,668 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,668 INFO L175 Difference]: Start difference. First operand has 138 places, 130 transitions, 282 flow. Second operand 3 states and 450 transitions. [2022-11-18 20:50:30,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 130 transitions, 305 flow [2022-11-18 20:50:30,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 130 transitions, 301 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:50:30,672 INFO L231 Difference]: Finished difference. Result has 137 places, 129 transitions, 278 flow [2022-11-18 20:50:30,672 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=137, PETRI_TRANSITIONS=129} [2022-11-18 20:50:30,673 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -9 predicate places. [2022-11-18 20:50:30,673 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 129 transitions, 278 flow [2022-11-18 20:50:30,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,673 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:30,674 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] [2022-11-18 20:50:30,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:50:30,674 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:30,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:30,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1792271741, now seen corresponding path program 1 times [2022-11-18 20:50:30,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:30,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374505620] [2022-11-18 20:50:30,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:30,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:30,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:30,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:30,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374505620] [2022-11-18 20:50:30,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374505620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:30,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:30,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:30,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660449660] [2022-11-18 20:50:30,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:30,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:30,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:30,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:30,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:30,708 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2022-11-18 20:50:30,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 129 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:30,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2022-11-18 20:50:30,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:30,765 INFO L130 PetriNetUnfolder]: 12/349 cut-off events. [2022-11-18 20:50:30,765 INFO L131 PetriNetUnfolder]: For 6/28 co-relation queries the response was YES. [2022-11-18 20:50:30,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 349 events. 12/349 cut-off events. For 6/28 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1537 event pairs, 4 based on Foata normal form. 6/329 useless extension candidates. Maximal degree in co-relation 256. Up to 33 conditions per place. [2022-11-18 20:50:30,767 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 10 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2022-11-18 20:50:30,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 129 transitions, 303 flow [2022-11-18 20:50:30,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:30,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:30,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2022-11-18 20:50:30,769 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9399585921325052 [2022-11-18 20:50:30,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2022-11-18 20:50:30,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2022-11-18 20:50:30,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:30,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2022-11-18 20:50:30,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,772 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,772 INFO L175 Difference]: Start difference. First operand has 137 places, 129 transitions, 278 flow. Second operand 3 states and 454 transitions. [2022-11-18 20:50:30,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 129 transitions, 303 flow [2022-11-18 20:50:30,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 129 transitions, 302 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:50:30,775 INFO L231 Difference]: Finished difference. Result has 137 places, 128 transitions, 279 flow [2022-11-18 20:50:30,775 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=137, PETRI_TRANSITIONS=128} [2022-11-18 20:50:30,776 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -9 predicate places. [2022-11-18 20:50:30,776 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 128 transitions, 279 flow [2022-11-18 20:50:30,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:30,777 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] [2022-11-18 20:50:30,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:50:30,777 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:30,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:30,778 INFO L85 PathProgramCache]: Analyzing trace with hash -832141158, now seen corresponding path program 1 times [2022-11-18 20:50:30,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:30,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528806250] [2022-11-18 20:50:30,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:30,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:30,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:30,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:30,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528806250] [2022-11-18 20:50:30,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528806250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:30,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:30,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:30,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951093755] [2022-11-18 20:50:30,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:30,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:30,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:30,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:30,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:30,808 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2022-11-18 20:50:30,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 128 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:30,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2022-11-18 20:50:30,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:30,860 INFO L130 PetriNetUnfolder]: 20/265 cut-off events. [2022-11-18 20:50:30,860 INFO L131 PetriNetUnfolder]: For 22/27 co-relation queries the response was YES. [2022-11-18 20:50:30,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 265 events. 20/265 cut-off events. For 22/27 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1045 event pairs, 8 based on Foata normal form. 1/251 useless extension candidates. Maximal degree in co-relation 317. Up to 45 conditions per place. [2022-11-18 20:50:30,862 INFO L137 encePairwiseOnDemand]: 158/161 looper letters, 9 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2022-11-18 20:50:30,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 128 transitions, 302 flow [2022-11-18 20:50:30,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:30,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:30,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2022-11-18 20:50:30,864 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.937888198757764 [2022-11-18 20:50:30,864 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2022-11-18 20:50:30,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2022-11-18 20:50:30,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:30,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2022-11-18 20:50:30,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,868 INFO L175 Difference]: Start difference. First operand has 137 places, 128 transitions, 279 flow. Second operand 3 states and 453 transitions. [2022-11-18 20:50:30,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 128 transitions, 302 flow [2022-11-18 20:50:30,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 128 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:50:30,870 INFO L231 Difference]: Finished difference. Result has 136 places, 127 transitions, 277 flow [2022-11-18 20:50:30,871 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=136, PETRI_TRANSITIONS=127} [2022-11-18 20:50:30,871 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -10 predicate places. [2022-11-18 20:50:30,872 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 127 transitions, 277 flow [2022-11-18 20:50:30,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:30,872 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:30,872 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] [2022-11-18 20:50:30,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:50:30,873 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:30,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:30,873 INFO L85 PathProgramCache]: Analyzing trace with hash 749078325, now seen corresponding path program 1 times [2022-11-18 20:50:30,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:30,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614502311] [2022-11-18 20:50:30,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:30,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:31,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:31,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:31,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614502311] [2022-11-18 20:50:31,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614502311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:31,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:31,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:50:31,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873632679] [2022-11-18 20:50:31,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:31,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:50:31,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:31,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:50:31,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:50:31,370 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2022-11-18 20:50:31,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 127 transitions, 277 flow. Second operand has 6 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:31,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2022-11-18 20:50:31,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:31,449 INFO L130 PetriNetUnfolder]: 4/215 cut-off events. [2022-11-18 20:50:31,449 INFO L131 PetriNetUnfolder]: For 4/42 co-relation queries the response was YES. [2022-11-18 20:50:31,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 215 events. 4/215 cut-off events. For 4/42 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 661 event pairs, 0 based on Foata normal form. 8/213 useless extension candidates. Maximal degree in co-relation 224. Up to 15 conditions per place. [2022-11-18 20:50:31,450 INFO L137 encePairwiseOnDemand]: 156/161 looper letters, 14 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2022-11-18 20:50:31,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 126 transitions, 311 flow [2022-11-18 20:50:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:50:31,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:50:31,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 841 transitions. [2022-11-18 20:50:31,453 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.870600414078675 [2022-11-18 20:50:31,453 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 841 transitions. [2022-11-18 20:50:31,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 841 transitions. [2022-11-18 20:50:31,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:31,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 841 transitions. [2022-11-18 20:50:31,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.16666666666666) internal successors, (841), 6 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,459 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,460 INFO L175 Difference]: Start difference. First operand has 136 places, 127 transitions, 277 flow. Second operand 6 states and 841 transitions. [2022-11-18 20:50:31,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 126 transitions, 311 flow [2022-11-18 20:50:31,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 126 transitions, 307 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:50:31,463 INFO L231 Difference]: Finished difference. Result has 138 places, 126 transitions, 279 flow [2022-11-18 20:50:31,463 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=279, PETRI_PLACES=138, PETRI_TRANSITIONS=126} [2022-11-18 20:50:31,464 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -8 predicate places. [2022-11-18 20:50:31,466 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 126 transitions, 279 flow [2022-11-18 20:50:31,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,467 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:31,467 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] [2022-11-18 20:50:31,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:50:31,467 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:31,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:31,468 INFO L85 PathProgramCache]: Analyzing trace with hash 483235654, now seen corresponding path program 1 times [2022-11-18 20:50:31,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:31,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424457648] [2022-11-18 20:50:31,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:31,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:31,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:31,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424457648] [2022-11-18 20:50:31,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424457648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:31,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:31,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:31,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250327306] [2022-11-18 20:50:31,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:31,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:31,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:31,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:31,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:31,523 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 161 [2022-11-18 20:50:31,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 126 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:31,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 161 [2022-11-18 20:50:31,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:31,595 INFO L130 PetriNetUnfolder]: 8/327 cut-off events. [2022-11-18 20:50:31,596 INFO L131 PetriNetUnfolder]: For 6/16 co-relation queries the response was YES. [2022-11-18 20:50:31,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 327 events. 8/327 cut-off events. For 6/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1398 event pairs, 4 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 350. Up to 21 conditions per place. [2022-11-18 20:50:31,597 INFO L137 encePairwiseOnDemand]: 159/161 looper letters, 7 selfloop transitions, 1 changer transitions 0/125 dead transitions. [2022-11-18 20:50:31,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 125 transitions, 293 flow [2022-11-18 20:50:31,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:31,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:31,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2022-11-18 20:50:31,599 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9440993788819876 [2022-11-18 20:50:31,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 456 transitions. [2022-11-18 20:50:31,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 456 transitions. [2022-11-18 20:50:31,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:31,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 456 transitions. [2022-11-18 20:50:31,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,603 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,603 INFO L175 Difference]: Start difference. First operand has 138 places, 126 transitions, 279 flow. Second operand 3 states and 456 transitions. [2022-11-18 20:50:31,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 125 transitions, 293 flow [2022-11-18 20:50:31,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 125 transitions, 286 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:50:31,605 INFO L231 Difference]: Finished difference. Result has 135 places, 125 transitions, 272 flow [2022-11-18 20:50:31,606 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=135, PETRI_TRANSITIONS=125} [2022-11-18 20:50:31,606 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -11 predicate places. [2022-11-18 20:50:31,606 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 272 flow [2022-11-18 20:50:31,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,607 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:50:31,607 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] [2022-11-18 20:50:31,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:50:31,607 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-18 20:50:31,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:31,608 INFO L85 PathProgramCache]: Analyzing trace with hash 146871224, now seen corresponding path program 1 times [2022-11-18 20:50:31,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:31,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755380953] [2022-11-18 20:50:31,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:31,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:31,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:31,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:31,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755380953] [2022-11-18 20:50:31,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755380953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:31,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:31,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:31,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958285831] [2022-11-18 20:50:31,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:31,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:31,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:31,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:31,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:31,666 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 161 [2022-11-18 20:50:31,666 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:50:31,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 161 [2022-11-18 20:50:31,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:50:31,705 INFO L130 PetriNetUnfolder]: 12/256 cut-off events. [2022-11-18 20:50:31,705 INFO L131 PetriNetUnfolder]: For 14/19 co-relation queries the response was YES. [2022-11-18 20:50:31,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 256 events. 12/256 cut-off events. For 14/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 920 event pairs, 8 based on Foata normal form. 4/250 useless extension candidates. Maximal degree in co-relation 310. Up to 37 conditions per place. [2022-11-18 20:50:31,706 INFO L137 encePairwiseOnDemand]: 159/161 looper letters, 0 selfloop transitions, 0 changer transitions 124/124 dead transitions. [2022-11-18 20:50:31,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 124 transitions, 284 flow [2022-11-18 20:50:31,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:31,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:50:31,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2022-11-18 20:50:31,708 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9420289855072463 [2022-11-18 20:50:31,709 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 455 transitions. [2022-11-18 20:50:31,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 455 transitions. [2022-11-18 20:50:31,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:50:31,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 455 transitions. [2022-11-18 20:50:31,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,712 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,712 INFO L175 Difference]: Start difference. First operand has 135 places, 125 transitions, 272 flow. Second operand 3 states and 455 transitions. [2022-11-18 20:50:31,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 124 transitions, 284 flow [2022-11-18 20:50:31,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 124 transitions, 283 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:50:31,715 INFO L231 Difference]: Finished difference. Result has 135 places, 0 transitions, 0 flow [2022-11-18 20:50:31,715 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=135, PETRI_TRANSITIONS=0} [2022-11-18 20:50:31,717 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -11 predicate places. [2022-11-18 20:50:31,717 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 0 transitions, 0 flow [2022-11-18 20:50:31,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:31,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (34 of 35 remaining) [2022-11-18 20:50:31,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (33 of 35 remaining) [2022-11-18 20:50:31,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (32 of 35 remaining) [2022-11-18 20:50:31,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (31 of 35 remaining) [2022-11-18 20:50:31,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (30 of 35 remaining) [2022-11-18 20:50:31,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (29 of 35 remaining) [2022-11-18 20:50:31,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (28 of 35 remaining) [2022-11-18 20:50:31,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (27 of 35 remaining) [2022-11-18 20:50:31,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (26 of 35 remaining) [2022-11-18 20:50:31,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (25 of 35 remaining) [2022-11-18 20:50:31,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (24 of 35 remaining) [2022-11-18 20:50:31,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (23 of 35 remaining) [2022-11-18 20:50:31,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (22 of 35 remaining) [2022-11-18 20:50:31,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (21 of 35 remaining) [2022-11-18 20:50:31,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 35 remaining) [2022-11-18 20:50:31,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 35 remaining) [2022-11-18 20:50:31,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 35 remaining) [2022-11-18 20:50:31,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 35 remaining) [2022-11-18 20:50:31,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 35 remaining) [2022-11-18 20:50:31,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 35 remaining) [2022-11-18 20:50:31,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 35 remaining) [2022-11-18 20:50:31,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (13 of 35 remaining) [2022-11-18 20:50:31,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (12 of 35 remaining) [2022-11-18 20:50:31,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (11 of 35 remaining) [2022-11-18 20:50:31,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (10 of 35 remaining) [2022-11-18 20:50:31,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (9 of 35 remaining) [2022-11-18 20:50:31,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (8 of 35 remaining) [2022-11-18 20:50:31,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (7 of 35 remaining) [2022-11-18 20:50:31,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (6 of 35 remaining) [2022-11-18 20:50:31,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 35 remaining) [2022-11-18 20:50:31,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 35 remaining) [2022-11-18 20:50:31,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (3 of 35 remaining) [2022-11-18 20:50:31,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (2 of 35 remaining) [2022-11-18 20:50:31,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 35 remaining) [2022-11-18 20:50:31,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (0 of 35 remaining) [2022-11-18 20:50:31,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:50:31,728 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:31,735 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:50:31,735 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:50:31,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:50:31 BasicIcfg [2022-11-18 20:50:31,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:50:31,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:50:31,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:50:31,742 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:50:31,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:27" (3/4) ... [2022-11-18 20:50:31,745 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:50:31,750 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 20:50:31,751 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 20:50:31,756 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-18 20:50:31,757 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:50:31,757 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:50:31,757 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:50:31,795 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:50:31,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:50:31,796 INFO L158 Benchmark]: Toolchain (without parser) took 5157.75ms. Allocated memory was 123.7MB in the beginning and 188.7MB in the end (delta: 65.0MB). Free memory was 85.0MB in the beginning and 123.6MB in the end (delta: -38.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-18 20:50:31,796 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory was 101.6MB in the beginning and 101.5MB in the end (delta: 127.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:50:31,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.94ms. Allocated memory is still 123.7MB. Free memory was 84.9MB in the beginning and 96.7MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:50:31,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.18ms. Allocated memory is still 123.7MB. Free memory was 96.7MB in the beginning and 95.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:50:31,797 INFO L158 Benchmark]: Boogie Preprocessor took 37.76ms. Allocated memory is still 123.7MB. Free memory was 95.3MB in the beginning and 93.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:50:31,798 INFO L158 Benchmark]: RCFGBuilder took 534.31ms. Allocated memory is still 123.7MB. Free memory was 93.8MB in the beginning and 78.0MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 20:50:31,798 INFO L158 Benchmark]: TraceAbstraction took 4109.39ms. Allocated memory was 123.7MB in the beginning and 188.7MB in the end (delta: 65.0MB). Free memory was 77.4MB in the beginning and 126.7MB in the end (delta: -49.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-11-18 20:50:31,798 INFO L158 Benchmark]: Witness Printer took 53.15ms. Allocated memory is still 188.7MB. Free memory was 126.7MB in the beginning and 123.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:50:31,803 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory was 101.6MB in the beginning and 101.5MB in the end (delta: 127.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.94ms. Allocated memory is still 123.7MB. Free memory was 84.9MB in the beginning and 96.7MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.18ms. Allocated memory is still 123.7MB. Free memory was 96.7MB in the beginning and 95.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.76ms. Allocated memory is still 123.7MB. Free memory was 95.3MB in the beginning and 93.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 534.31ms. Allocated memory is still 123.7MB. Free memory was 93.8MB in the beginning and 78.0MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4109.39ms. Allocated memory was 123.7MB in the beginning and 188.7MB in the end (delta: 65.0MB). Free memory was 77.4MB in the beginning and 126.7MB in the end (delta: -49.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Witness Printer took 53.15ms. Allocated memory is still 188.7MB. Free memory was 126.7MB in the beginning and 123.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 239 locations, 35 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 285 IncrementalHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 110 mSDtfsCounter, 285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred in iteration=0, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 951 NumberOfCodeBlocks, 951 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 933 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 19 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:50:31,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8299c193-9947-4da4-b300-64328c8d1978/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE