./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:03:25,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:03:25,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:03:25,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:03:25,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:03:25,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:03:25,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:03:25,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:03:25,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:03:25,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:03:25,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:03:25,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:03:25,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:03:25,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:03:25,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:03:25,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:03:25,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:03:25,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:03:25,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:03:25,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:03:25,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:03:25,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:03:25,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:03:25,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:03:25,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:03:25,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:03:25,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:03:25,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:03:25,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:03:25,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:03:25,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:03:25,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:03:25,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:03:25,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:03:25,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:03:25,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:03:25,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:03:25,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:03:25,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:03:25,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:03:25,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:03:25,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 13:03:25,290 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:03:25,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:03:25,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:03:25,291 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:03:25,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:03:25,291 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:03:25,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:03:25,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:03:25,292 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:03:25,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:03:25,293 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:03:25,293 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:03:25,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:03:25,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:03:25,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:03:25,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:03:25,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:03:25,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:03:25,294 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 13:03:25,294 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:03:25,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:03:25,295 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:03:25,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:03:25,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:03:25,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:03:25,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:03:25,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:03:25,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:03:25,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:03:25,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:03:25,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:03:25,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:03:25,296 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:03:25,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:03:25,297 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:03:25,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:03:25,297 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:03:25,297 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2022-12-13 13:03:25,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:03:25,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:03:25,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:03:25,504 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:03:25,504 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:03:25,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2022-12-13 13:03:28,148 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:03:28,348 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:03:28,349 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2022-12-13 13:03:28,361 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/data/c6b35c7f2/b3fb91effec442bc96445207998c4aa3/FLAG3b1391022 [2022-12-13 13:03:28,375 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/data/c6b35c7f2/b3fb91effec442bc96445207998c4aa3 [2022-12-13 13:03:28,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:03:28,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:03:28,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:03:28,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:03:28,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:03:28,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:03:28" (1/1) ... [2022-12-13 13:03:28,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f7c7903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28, skipping insertion in model container [2022-12-13 13:03:28,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:03:28" (1/1) ... [2022-12-13 13:03:28,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:03:28,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:03:28,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:03:28,744 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:03:28,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:03:28,819 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:03:28,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28 WrapperNode [2022-12-13 13:03:28,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:03:28,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:03:28,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:03:28,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:03:28,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28" (1/1) ... [2022-12-13 13:03:28,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28" (1/1) ... [2022-12-13 13:03:28,864 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2022-12-13 13:03:28,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:03:28,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:03:28,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:03:28,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:03:28,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28" (1/1) ... [2022-12-13 13:03:28,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28" (1/1) ... [2022-12-13 13:03:28,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28" (1/1) ... [2022-12-13 13:03:28,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28" (1/1) ... [2022-12-13 13:03:28,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28" (1/1) ... [2022-12-13 13:03:28,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28" (1/1) ... [2022-12-13 13:03:28,893 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28" (1/1) ... [2022-12-13 13:03:28,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28" (1/1) ... [2022-12-13 13:03:28,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:03:28,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:03:28,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:03:28,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:03:28,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28" (1/1) ... [2022-12-13 13:03:28,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:03:28,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:03:28,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:03:28,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:03:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:03:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:03:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:03:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:03:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 13:03:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:03:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 13:03:28,960 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 13:03:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:03:28,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:03:28,961 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 13:03:29,067 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:03:29,069 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:03:29,250 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:03:29,256 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:03:29,256 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:03:29,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:03:29 BoogieIcfgContainer [2022-12-13 13:03:29,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:03:29,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:03:29,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:03:29,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:03:29,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:03:28" (1/3) ... [2022-12-13 13:03:29,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94331d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:03:29, skipping insertion in model container [2022-12-13 13:03:29,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:03:28" (2/3) ... [2022-12-13 13:03:29,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94331d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:03:29, skipping insertion in model container [2022-12-13 13:03:29,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:03:29" (3/3) ... [2022-12-13 13:03:29,264 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2022-12-13 13:03:29,270 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:03:29,278 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:03:29,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 13:03:29,278 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:03:29,337 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:03:29,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 103 transitions, 211 flow [2022-12-13 13:03:29,409 INFO L130 PetriNetUnfolder]: 4/102 cut-off events. [2022-12-13 13:03:29,409 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:03:29,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 4/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-12-13 13:03:29,413 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 103 transitions, 211 flow [2022-12-13 13:03:29,417 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 102 transitions, 207 flow [2022-12-13 13:03:29,420 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:03:29,430 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 102 transitions, 207 flow [2022-12-13 13:03:29,433 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 102 transitions, 207 flow [2022-12-13 13:03:29,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 102 transitions, 207 flow [2022-12-13 13:03:29,458 INFO L130 PetriNetUnfolder]: 4/102 cut-off events. [2022-12-13 13:03:29,458 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:03:29,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 4/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-12-13 13:03:29,461 INFO L119 LiptonReduction]: Number of co-enabled transitions 2220 [2022-12-13 13:03:30,860 INFO L134 LiptonReduction]: Checked pairs total: 9138 [2022-12-13 13:03:30,860 INFO L136 LiptonReduction]: Total number of compositions: 79 [2022-12-13 13:03:30,873 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:03:30,879 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;@6ea41ac4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:03:30,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 13:03:30,884 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2022-12-13 13:03:30,884 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:03:30,884 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:03:30,885 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:03:30,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:03:30,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:03:30,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1616016811, now seen corresponding path program 1 times [2022-12-13 13:03:30,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:03:30,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471729132] [2022-12-13 13:03:30,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:03:30,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:03:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:03:31,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:03:31,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:03:31,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471729132] [2022-12-13 13:03:31,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471729132] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:03:31,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:03:31,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:03:31,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785125174] [2022-12-13 13:03:31,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:03:31,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:03:31,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:03:31,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:03:31,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:03:31,132 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 182 [2022-12-13 13:03:31,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:31,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:03:31,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 182 [2022-12-13 13:03:31,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:03:31,196 INFO L130 PetriNetUnfolder]: 37/167 cut-off events. [2022-12-13 13:03:31,196 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:03:31,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 167 events. 37/167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 246. Up to 89 conditions per place. [2022-12-13 13:03:31,198 INFO L137 encePairwiseOnDemand]: 179/182 looper letters, 15 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2022-12-13 13:03:31,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 111 flow [2022-12-13 13:03:31,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:03:31,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:03:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2022-12-13 13:03:31,208 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.554945054945055 [2022-12-13 13:03:31,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2022-12-13 13:03:31,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2022-12-13 13:03:31,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:03:31,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2022-12-13 13:03:31,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:31,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:31,220 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:31,222 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 75 flow. Second operand 3 states and 303 transitions. [2022-12-13 13:03:31,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 111 flow [2022-12-13 13:03:31,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:03:31,226 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow [2022-12-13 13:03:31,227 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2022-12-13 13:03:31,230 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2022-12-13 13:03:31,230 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow [2022-12-13 13:03:31,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:31,231 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:03:31,231 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:03:31,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:03:31,231 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:03:31,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:03:31,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1853811792, now seen corresponding path program 1 times [2022-12-13 13:03:31,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:03:31,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348902784] [2022-12-13 13:03:31,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:03:31,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:03:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:03:31,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:03:31,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:03:31,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348902784] [2022-12-13 13:03:31,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348902784] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:03:31,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347609762] [2022-12-13 13:03:31,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:03:31,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:03:31,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:03:31,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:03:31,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:03:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:03:31,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:03:31,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:03:31,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:03:31,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:03:31,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:03:31,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347609762] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:03:31,433 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:03:31,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-13 13:03:31,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899946747] [2022-12-13 13:03:31,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:03:31,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:03:31,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:03:31,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:03:31,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:03:31,456 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 182 [2022-12-13 13:03:31,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 86 flow. Second operand has 7 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:31,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:03:31,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 182 [2022-12-13 13:03:31,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:03:31,523 INFO L130 PetriNetUnfolder]: 37/170 cut-off events. [2022-12-13 13:03:31,523 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:03:31,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 170 events. 37/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 627 event pairs, 36 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 265. Up to 89 conditions per place. [2022-12-13 13:03:31,524 INFO L137 encePairwiseOnDemand]: 179/182 looper letters, 15 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2022-12-13 13:03:31,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 138 flow [2022-12-13 13:03:31,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:03:31,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:03:31,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 587 transitions. [2022-12-13 13:03:31,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5375457875457875 [2022-12-13 13:03:31,527 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 587 transitions. [2022-12-13 13:03:31,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 587 transitions. [2022-12-13 13:03:31,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:03:31,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 587 transitions. [2022-12-13 13:03:31,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.83333333333333) internal successors, (587), 6 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:31,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:31,536 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:31,536 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 587 transitions. [2022-12-13 13:03:31,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 138 flow [2022-12-13 13:03:31,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 13:03:31,537 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2022-12-13 13:03:31,537 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2022-12-13 13:03:31,538 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2022-12-13 13:03:31,538 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2022-12-13 13:03:31,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:31,538 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:03:31,538 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:03:31,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:03:31,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:03:31,740 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:03:31,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:03:31,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1638782235, now seen corresponding path program 2 times [2022-12-13 13:03:31,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:03:31,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429091536] [2022-12-13 13:03:31,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:03:31,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:03:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:03:32,135 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 13:03:32,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:03:32,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429091536] [2022-12-13 13:03:32,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429091536] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:03:32,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:03:32,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:03:32,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968055283] [2022-12-13 13:03:32,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:03:32,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:03:32,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:03:32,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:03:32,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:03:32,279 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 182 [2022-12-13 13:03:32,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:32,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:03:32,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 182 [2022-12-13 13:03:32,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:03:32,434 INFO L130 PetriNetUnfolder]: 162/398 cut-off events. [2022-12-13 13:03:32,434 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:03:32,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 785 conditions, 398 events. 162/398 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1688 event pairs, 74 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 752. Up to 265 conditions per place. [2022-12-13 13:03:32,436 INFO L137 encePairwiseOnDemand]: 171/182 looper letters, 52 selfloop transitions, 22 changer transitions 0/82 dead transitions. [2022-12-13 13:03:32,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 82 transitions, 350 flow [2022-12-13 13:03:32,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:03:32,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:03:32,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 569 transitions. [2022-12-13 13:03:32,440 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5210622710622711 [2022-12-13 13:03:32,440 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 569 transitions. [2022-12-13 13:03:32,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 569 transitions. [2022-12-13 13:03:32,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:03:32,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 569 transitions. [2022-12-13 13:03:32,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:32,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:32,444 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:32,444 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 569 transitions. [2022-12-13 13:03:32,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 82 transitions, 350 flow [2022-12-13 13:03:32,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 82 transitions, 336 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 13:03:32,446 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 254 flow [2022-12-13 13:03:32,446 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=254, PETRI_PLACES=57, PETRI_TRANSITIONS=61} [2022-12-13 13:03:32,446 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2022-12-13 13:03:32,446 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 254 flow [2022-12-13 13:03:32,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:32,447 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:03:32,447 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:03:32,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:03:32,447 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:03:32,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:03:32,447 INFO L85 PathProgramCache]: Analyzing trace with hash -387159317, now seen corresponding path program 1 times [2022-12-13 13:03:32,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:03:32,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864779852] [2022-12-13 13:03:32,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:03:32,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:03:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:03:32,630 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 13:03:32,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:03:32,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864779852] [2022-12-13 13:03:32,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864779852] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:03:32,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:03:32,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:03:32,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014217315] [2022-12-13 13:03:32,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:03:32,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:03:32,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:03:32,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:03:32,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:03:32,819 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 182 [2022-12-13 13:03:32,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:32,820 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:03:32,820 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 182 [2022-12-13 13:03:32,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:03:33,011 INFO L130 PetriNetUnfolder]: 216/518 cut-off events. [2022-12-13 13:03:33,011 INFO L131 PetriNetUnfolder]: For 133/137 co-relation queries the response was YES. [2022-12-13 13:03:33,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1231 conditions, 518 events. 216/518 cut-off events. For 133/137 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2395 event pairs, 80 based on Foata normal form. 3/512 useless extension candidates. Maximal degree in co-relation 1200. Up to 346 conditions per place. [2022-12-13 13:03:33,014 INFO L137 encePairwiseOnDemand]: 171/182 looper letters, 71 selfloop transitions, 26 changer transitions 0/107 dead transitions. [2022-12-13 13:03:33,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 107 transitions, 566 flow [2022-12-13 13:03:33,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:03:33,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:03:33,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 562 transitions. [2022-12-13 13:03:33,015 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5146520146520146 [2022-12-13 13:03:33,015 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 562 transitions. [2022-12-13 13:03:33,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 562 transitions. [2022-12-13 13:03:33,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:03:33,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 562 transitions. [2022-12-13 13:03:33,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.66666666666667) internal successors, (562), 6 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:33,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:33,019 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:33,019 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 254 flow. Second operand 6 states and 562 transitions. [2022-12-13 13:03:33,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 107 transitions, 566 flow [2022-12-13 13:03:33,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 107 transitions, 566 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:03:33,022 INFO L231 Difference]: Finished difference. Result has 67 places, 82 transitions, 438 flow [2022-12-13 13:03:33,022 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=67, PETRI_TRANSITIONS=82} [2022-12-13 13:03:33,022 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 28 predicate places. [2022-12-13 13:03:33,022 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 82 transitions, 438 flow [2022-12-13 13:03:33,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:33,023 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:03:33,023 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:03:33,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:03:33,023 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:03:33,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:03:33,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1935386805, now seen corresponding path program 1 times [2022-12-13 13:03:33,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:03:33,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848830817] [2022-12-13 13:03:33,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:03:33,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:03:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:03:33,101 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:03:33,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:03:33,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848830817] [2022-12-13 13:03:33,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848830817] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:03:33,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687803978] [2022-12-13 13:03:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:03:33,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:03:33,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:03:33,103 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:03:33,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 13:03:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:03:33,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 13:03:33,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:03:33,186 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:03:33,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:03:33,226 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:03:33,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687803978] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:03:33,226 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:03:33,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-13 13:03:33,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766093279] [2022-12-13 13:03:33,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:03:33,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 13:03:33,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:03:33,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 13:03:33,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 13:03:33,255 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 182 [2022-12-13 13:03:33,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 82 transitions, 438 flow. Second operand has 13 states, 13 states have (on average 95.46153846153847) internal successors, (1241), 13 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:33,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:03:33,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 182 [2022-12-13 13:03:33,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:03:33,333 INFO L130 PetriNetUnfolder]: 124/389 cut-off events. [2022-12-13 13:03:33,333 INFO L131 PetriNetUnfolder]: For 226/231 co-relation queries the response was YES. [2022-12-13 13:03:33,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 389 events. 124/389 cut-off events. For 226/231 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1943 event pairs, 46 based on Foata normal form. 7/388 useless extension candidates. Maximal degree in co-relation 947. Up to 152 conditions per place. [2022-12-13 13:03:33,335 INFO L137 encePairwiseOnDemand]: 179/182 looper letters, 21 selfloop transitions, 11 changer transitions 0/88 dead transitions. [2022-12-13 13:03:33,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 88 transitions, 538 flow [2022-12-13 13:03:33,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 13:03:33,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 13:03:33,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1160 transitions. [2022-12-13 13:03:33,340 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5311355311355311 [2022-12-13 13:03:33,340 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1160 transitions. [2022-12-13 13:03:33,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1160 transitions. [2022-12-13 13:03:33,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:03:33,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1160 transitions. [2022-12-13 13:03:33,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.66666666666667) internal successors, (1160), 12 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:33,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 182.0) internal successors, (2366), 13 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:33,345 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 182.0) internal successors, (2366), 13 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:33,345 INFO L175 Difference]: Start difference. First operand has 67 places, 82 transitions, 438 flow. Second operand 12 states and 1160 transitions. [2022-12-13 13:03:33,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 88 transitions, 538 flow [2022-12-13 13:03:33,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 88 transitions, 538 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:03:33,357 INFO L231 Difference]: Finished difference. Result has 84 places, 88 transitions, 522 flow [2022-12-13 13:03:33,357 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=522, PETRI_PLACES=84, PETRI_TRANSITIONS=88} [2022-12-13 13:03:33,358 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 45 predicate places. [2022-12-13 13:03:33,358 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 88 transitions, 522 flow [2022-12-13 13:03:33,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 95.46153846153847) internal successors, (1241), 13 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:33,359 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:03:33,359 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:03:33,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 13:03:33,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:03:33,559 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:03:33,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:03:33,560 INFO L85 PathProgramCache]: Analyzing trace with hash -156793707, now seen corresponding path program 2 times [2022-12-13 13:03:33,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:03:33,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977772055] [2022-12-13 13:03:33,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:03:33,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:03:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:03:33,884 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:03:33,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:03:33,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977772055] [2022-12-13 13:03:33,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977772055] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:03:33,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:03:33,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:03:33,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750142944] [2022-12-13 13:03:33,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:03:33,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:03:33,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:03:33,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:03:33,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:03:33,979 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 182 [2022-12-13 13:03:33,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 88 transitions, 522 flow. Second operand has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:33,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:03:33,980 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 182 [2022-12-13 13:03:33,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:03:34,264 INFO L130 PetriNetUnfolder]: 322/738 cut-off events. [2022-12-13 13:03:34,265 INFO L131 PetriNetUnfolder]: For 520/523 co-relation queries the response was YES. [2022-12-13 13:03:34,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2236 conditions, 738 events. 322/738 cut-off events. For 520/523 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3492 event pairs, 106 based on Foata normal form. 0/718 useless extension candidates. Maximal degree in co-relation 2151. Up to 557 conditions per place. [2022-12-13 13:03:34,270 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 89 selfloop transitions, 53 changer transitions 8/155 dead transitions. [2022-12-13 13:03:34,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 155 transitions, 1090 flow [2022-12-13 13:03:34,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:03:34,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:03:34,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 552 transitions. [2022-12-13 13:03:34,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5054945054945055 [2022-12-13 13:03:34,272 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 552 transitions. [2022-12-13 13:03:34,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 552 transitions. [2022-12-13 13:03:34,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:03:34,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 552 transitions. [2022-12-13 13:03:34,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.0) internal successors, (552), 6 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:34,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:34,276 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:34,276 INFO L175 Difference]: Start difference. First operand has 84 places, 88 transitions, 522 flow. Second operand 6 states and 552 transitions. [2022-12-13 13:03:34,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 155 transitions, 1090 flow [2022-12-13 13:03:34,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 155 transitions, 1042 flow, removed 19 selfloop flow, removed 5 redundant places. [2022-12-13 13:03:34,283 INFO L231 Difference]: Finished difference. Result has 89 places, 135 transitions, 956 flow [2022-12-13 13:03:34,284 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=956, PETRI_PLACES=89, PETRI_TRANSITIONS=135} [2022-12-13 13:03:34,284 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 50 predicate places. [2022-12-13 13:03:34,284 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 135 transitions, 956 flow [2022-12-13 13:03:34,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:34,285 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:03:34,285 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:03:34,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:03:34,285 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:03:34,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:03:34,286 INFO L85 PathProgramCache]: Analyzing trace with hash 217328679, now seen corresponding path program 1 times [2022-12-13 13:03:34,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:03:34,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988221305] [2022-12-13 13:03:34,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:03:34,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:03:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:03:34,502 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:03:34,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:03:34,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988221305] [2022-12-13 13:03:34,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988221305] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:03:34,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:03:34,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:03:34,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429608589] [2022-12-13 13:03:34,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:03:34,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:03:34,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:03:34,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:03:34,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:03:34,619 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 182 [2022-12-13 13:03:34,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 135 transitions, 956 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:34,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:03:34,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 182 [2022-12-13 13:03:34,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:03:34,875 INFO L130 PetriNetUnfolder]: 413/914 cut-off events. [2022-12-13 13:03:34,876 INFO L131 PetriNetUnfolder]: For 1245/1260 co-relation queries the response was YES. [2022-12-13 13:03:34,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3381 conditions, 914 events. 413/914 cut-off events. For 1245/1260 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4506 event pairs, 110 based on Foata normal form. 0/891 useless extension candidates. Maximal degree in co-relation 3316. Up to 721 conditions per place. [2022-12-13 13:03:34,881 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 131 selfloop transitions, 58 changer transitions 26/218 dead transitions. [2022-12-13 13:03:34,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 218 transitions, 1836 flow [2022-12-13 13:03:34,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:03:34,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:03:34,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 545 transitions. [2022-12-13 13:03:34,882 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4990842490842491 [2022-12-13 13:03:34,883 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 545 transitions. [2022-12-13 13:03:34,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 545 transitions. [2022-12-13 13:03:34,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:03:34,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 545 transitions. [2022-12-13 13:03:34,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:34,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:34,885 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:34,885 INFO L175 Difference]: Start difference. First operand has 89 places, 135 transitions, 956 flow. Second operand 6 states and 545 transitions. [2022-12-13 13:03:34,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 218 transitions, 1836 flow [2022-12-13 13:03:34,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 218 transitions, 1772 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-12-13 13:03:34,893 INFO L231 Difference]: Finished difference. Result has 99 places, 176 transitions, 1418 flow [2022-12-13 13:03:34,893 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1418, PETRI_PLACES=99, PETRI_TRANSITIONS=176} [2022-12-13 13:03:34,894 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 60 predicate places. [2022-12-13 13:03:34,894 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 176 transitions, 1418 flow [2022-12-13 13:03:34,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:03:34,894 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:03:34,894 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:03:34,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:03:34,894 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:03:34,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:03:34,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1573762417, now seen corresponding path program 1 times [2022-12-13 13:03:34,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:03:34,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899637808] [2022-12-13 13:03:34,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:03:34,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:03:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:03:42,297 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:03:42,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:03:42,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899637808] [2022-12-13 13:03:42,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899637808] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:03:42,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469898643] [2022-12-13 13:03:42,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:03:42,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:03:42,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:03:42,299 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:03:42,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 13:03:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:03:42,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 63 conjunts are in the unsatisfiable core [2022-12-13 13:03:42,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:03:42,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 13:03:42,629 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:03:42,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:03:42,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 13:03:42,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:42,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-12-13 13:03:42,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 13:03:42,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:42,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:42,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2022-12-13 13:03:42,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 13:03:42,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:42,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:42,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:42,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 54 [2022-12-13 13:03:42,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 13:03:43,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:03:43,185 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:03:43,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 86 treesize of output 103 [2022-12-13 13:03:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 13:03:51,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:04:09,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2022-12-13 13:04:09,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-12-13 13:04:09,879 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:04:09,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469898643] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 13:04:09,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:04:09,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [20, 17] total 48 [2022-12-13 13:04:09,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887807804] [2022-12-13 13:04:09,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:04:09,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 13:04:09,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:04:09,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 13:04:09,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=2086, Unknown=4, NotChecked=0, Total=2352 [2022-12-13 13:04:30,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:04:37,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:04:40,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:05:00,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:05:00,334 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 182 [2022-12-13 13:05:00,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 176 transitions, 1418 flow. Second operand has 13 states, 13 states have (on average 70.46153846153847) internal successors, (916), 13 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:05:00,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:05:00,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 182 [2022-12-13 13:05:00,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:05:09,770 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse56 (* |c_ULTIMATE.start_main_~i~2#1| 28))) (let ((.cse45 (+ .cse56 |c_~#a~0.offset|)) (.cse3 (+ .cse56 3 |c_~#a~0.offset|)) (.cse4 (+ |c_t_funThread1of1ForFork0_~p~0#1.offset| 3)) (.cse9 (+ .cse56 2 |c_~#a~0.offset|)) (.cse1 (+ |c_t_funThread1of1ForFork0_~p~0#1.offset| 2)) (.cse13 (+ .cse56 |c_~#a~0.offset| 1)) (.cse10 (select |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base|)) (.cse5 (+ |c_t_funThread1of1ForFork0_~p~0#1.offset| 1))) (and (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse2 (let ((.cse6 (let ((.cse7 (let ((.cse8 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse1 v_ArrVal_359)))) (store .cse8 |c_~#a~0.base| (store (select .cse8 |c_~#a~0.base|) .cse9 0))))) (store .cse7 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse7 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse6 |c_~#a~0.base| (store (select .cse6 |c_~#a~0.base|) .cse3 0))))) (let ((.cse0 (select .cse2 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse0 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse2 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse3) 0)) (not (= 0 (select .cse0 .cse4))) (not (= (select .cse0 .cse5) 0)))))) (forall ((v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse12 (let ((.cse14 (let ((.cse15 (let ((.cse16 (let ((.cse17 (let ((.cse18 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse5 v_ArrVal_354)))) (store .cse18 |c_~#a~0.base| (store (select .cse18 |c_~#a~0.base|) .cse13 0))))) (store .cse17 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse17 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse1 v_ArrVal_359))))) (store .cse16 |c_~#a~0.base| (store (select .cse16 |c_~#a~0.base|) .cse9 0))))) (store .cse15 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse15 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse14 |c_~#a~0.base| (store (select .cse14 |c_~#a~0.base|) .cse3 0))))) (let ((.cse11 (select .cse12 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse11 .cse4) 0)) (not (= (select .cse11 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse12 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse11 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse13) 0)) (not (= (select .cse11 .cse5) 0)))))) (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse20 (let ((.cse21 (let ((.cse22 (let ((.cse23 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse1 v_ArrVal_359)))) (store .cse23 |c_~#a~0.base| (store (select .cse23 |c_~#a~0.base|) .cse9 0))))) (store .cse22 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse22 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse21 |c_~#a~0.base| (store (select .cse21 |c_~#a~0.base|) .cse3 0))))) (let ((.cse19 (select .cse20 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse19 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse20 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse19 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse9) 0)) (not (= 0 (select .cse19 .cse4))) (not (= (select .cse19 .cse5) 0)))))) (forall ((v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse25 (let ((.cse26 (let ((.cse27 (let ((.cse28 (let ((.cse29 (let ((.cse30 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse5 v_ArrVal_354)))) (store .cse30 |c_~#a~0.base| (store (select .cse30 |c_~#a~0.base|) .cse13 0))))) (store .cse29 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse29 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse1 v_ArrVal_359))))) (store .cse28 |c_~#a~0.base| (store (select .cse28 |c_~#a~0.base|) .cse9 0))))) (store .cse27 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse27 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse26 |c_~#a~0.base| (store (select .cse26 |c_~#a~0.base|) .cse3 0))))) (let ((.cse24 (select .cse25 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse24 .cse4) 0)) (not (= (select .cse24 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse25 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse24 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse9) 0)) (not (= (select .cse24 .cse5) 0)))))) (forall ((v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse32 (let ((.cse33 (let ((.cse34 (let ((.cse35 (let ((.cse36 (let ((.cse37 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse5 v_ArrVal_354)))) (store .cse37 |c_~#a~0.base| (store (select .cse37 |c_~#a~0.base|) .cse13 0))))) (store .cse36 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse36 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse1 v_ArrVal_359))))) (store .cse35 |c_~#a~0.base| (store (select .cse35 |c_~#a~0.base|) .cse9 0))))) (store .cse34 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse34 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse33 |c_~#a~0.base| (store (select .cse33 |c_~#a~0.base|) .cse3 0))))) (let ((.cse31 (select .cse32 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse31 .cse4) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse32 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse31 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse3) 0)) (not (= (select .cse31 .cse1) 0)) (not (= (select .cse31 .cse5) 0)))))) (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse39 (let ((.cse40 (let ((.cse41 (let ((.cse42 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse1 v_ArrVal_359)))) (store .cse42 |c_~#a~0.base| (store (select .cse42 |c_~#a~0.base|) .cse9 0))))) (store .cse41 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse41 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse40 |c_~#a~0.base| (store (select .cse40 |c_~#a~0.base|) .cse3 0))))) (let ((.cse38 (select .cse39 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse38 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse39 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse38 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse13) 0)) (not (= 0 (select .cse38 .cse4))) (not (= (select .cse38 .cse5) 0)))))) (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse44 (let ((.cse46 (let ((.cse47 (let ((.cse48 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse1 v_ArrVal_359)))) (store .cse48 |c_~#a~0.base| (store (select .cse48 |c_~#a~0.base|) .cse9 0))))) (store .cse47 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse47 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse46 |c_~#a~0.base| (store (select .cse46 |c_~#a~0.base|) .cse3 0))))) (let ((.cse43 (select .cse44 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse43 .cse1) 0)) (not (= 0 (select .cse43 .cse4))) (not (= (select .cse43 .cse5) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse44 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse43 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse45) 0)))))) (forall ((v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse50 (let ((.cse51 (let ((.cse52 (let ((.cse53 (let ((.cse54 (let ((.cse55 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse5 v_ArrVal_354)))) (store .cse55 |c_~#a~0.base| (store (select .cse55 |c_~#a~0.base|) .cse13 0))))) (store .cse54 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse54 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse1 v_ArrVal_359))))) (store .cse53 |c_~#a~0.base| (store (select .cse53 |c_~#a~0.base|) .cse9 0))))) (store .cse52 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse52 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse51 |c_~#a~0.base| (store (select .cse51 |c_~#a~0.base|) .cse3 0))))) (let ((.cse49 (select .cse50 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse49 .cse4) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse50 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse49 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse45) 0)) (not (= (select .cse49 .cse1) 0)) (not (= (select .cse49 .cse5) 0))))))))) is different from true [2022-12-13 13:05:12,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:05:25,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:05:27,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:05:37,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:05:49,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:06:01,193 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse68 (* |c_ULTIMATE.start_main_~i~2#1| 28))) (let ((.cse36 (+ .cse68 |c_~#a~0.offset|)) (.cse9 (+ .cse68 2 |c_~#a~0.offset|)) (.cse13 (+ .cse68 |c_~#a~0.offset| 1)) (.cse5 (+ |c_t_funThread1of1ForFork0_~p~0#1.offset| 1)) (.cse1 (+ |c_t_funThread1of1ForFork0_~p~0#1.offset| 2)) (.cse3 (+ .cse68 3 |c_~#a~0.offset|)) (.cse10 (select |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base|)) (.cse4 (+ |c_t_funThread1of1ForFork0_~p~0#1.offset| 3))) (and (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse2 (let ((.cse6 (let ((.cse7 (let ((.cse8 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse1 v_ArrVal_359)))) (store .cse8 |c_~#a~0.base| (store (select .cse8 |c_~#a~0.base|) .cse9 0))))) (store .cse7 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse7 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse6 |c_~#a~0.base| (store (select .cse6 |c_~#a~0.base|) .cse3 0))))) (let ((.cse0 (select .cse2 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse0 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse2 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse3) 0)) (not (= 0 (select .cse0 .cse4))) (not (= (select .cse0 .cse5) 0)))))) (forall ((v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse12 (let ((.cse14 (let ((.cse15 (let ((.cse16 (let ((.cse17 (let ((.cse18 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse5 v_ArrVal_354)))) (store .cse18 |c_~#a~0.base| (store (select .cse18 |c_~#a~0.base|) .cse13 0))))) (store .cse17 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse17 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse1 v_ArrVal_359))))) (store .cse16 |c_~#a~0.base| (store (select .cse16 |c_~#a~0.base|) .cse9 0))))) (store .cse15 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse15 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse14 |c_~#a~0.base| (store (select .cse14 |c_~#a~0.base|) .cse3 0))))) (let ((.cse11 (select .cse12 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse11 .cse4) 0)) (not (= (select .cse11 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse12 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse11 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse13) 0)) (not (= (select .cse11 .cse5) 0)))))) (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse20 (let ((.cse21 (let ((.cse22 (let ((.cse23 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse1 v_ArrVal_359)))) (store .cse23 |c_~#a~0.base| (store (select .cse23 |c_~#a~0.base|) .cse9 0))))) (store .cse22 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse22 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse21 |c_~#a~0.base| (store (select .cse21 |c_~#a~0.base|) .cse3 0))))) (let ((.cse19 (select .cse20 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse19 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse20 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse19 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse9) 0)) (not (= 0 (select .cse19 .cse4))) (not (= (select .cse19 .cse5) 0)))))) (forall ((v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse25 (let ((.cse26 (let ((.cse27 (let ((.cse28 (let ((.cse29 (let ((.cse30 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse5 v_ArrVal_354)))) (store .cse30 |c_~#a~0.base| (store (select .cse30 |c_~#a~0.base|) .cse13 0))))) (store .cse29 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse29 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse1 v_ArrVal_359))))) (store .cse28 |c_~#a~0.base| (store (select .cse28 |c_~#a~0.base|) .cse9 0))))) (store .cse27 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse27 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse26 |c_~#a~0.base| (store (select .cse26 |c_~#a~0.base|) .cse3 0))))) (let ((.cse24 (select .cse25 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse24 .cse4) 0)) (not (= (select .cse24 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse25 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse24 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse9) 0)) (not (= (select .cse24 .cse5) 0)))))) (forall ((v_ArrVal_362 Int)) (let ((.cse31 (let ((.cse33 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse4 v_ArrVal_362)))) (store .cse33 |c_~#a~0.base| (store (select .cse33 |c_~#a~0.base|) .cse3 0))))) (let ((.cse32 (select .cse31 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse31 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse32 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse13) 0)) (not (= (select .cse32 .cse5) 0)) (not (= (select .cse32 .cse1) 0)) (not (= (select .cse32 .cse4) 0)))))) (forall ((v_ArrVal_362 Int)) (let ((.cse35 (let ((.cse37 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse4 v_ArrVal_362)))) (store .cse37 |c_~#a~0.base| (store (select .cse37 |c_~#a~0.base|) .cse3 0))))) (let ((.cse34 (select .cse35 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse34 .cse5) 0)) (not (= (select .cse34 .cse1) 0)) (not (= (select .cse34 .cse4) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse35 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse34 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse36) 0)))))) (forall ((v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse39 (let ((.cse40 (let ((.cse41 (let ((.cse42 (let ((.cse43 (let ((.cse44 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse5 v_ArrVal_354)))) (store .cse44 |c_~#a~0.base| (store (select .cse44 |c_~#a~0.base|) .cse13 0))))) (store .cse43 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse43 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse1 v_ArrVal_359))))) (store .cse42 |c_~#a~0.base| (store (select .cse42 |c_~#a~0.base|) .cse9 0))))) (store .cse41 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse41 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse40 |c_~#a~0.base| (store (select .cse40 |c_~#a~0.base|) .cse3 0))))) (let ((.cse38 (select .cse39 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse38 .cse4) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse39 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse38 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse3) 0)) (not (= (select .cse38 .cse1) 0)) (not (= (select .cse38 .cse5) 0)))))) (forall ((v_ArrVal_362 Int)) (let ((.cse45 (let ((.cse47 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse4 v_ArrVal_362)))) (store .cse47 |c_~#a~0.base| (store (select .cse47 |c_~#a~0.base|) .cse3 0))))) (let ((.cse46 (select .cse45 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse45 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse46 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse9) 0)) (not (= (select .cse46 .cse5) 0)) (not (= (select .cse46 .cse1) 0)) (not (= (select .cse46 .cse4) 0)))))) (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse49 (let ((.cse50 (let ((.cse51 (let ((.cse52 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse1 v_ArrVal_359)))) (store .cse52 |c_~#a~0.base| (store (select .cse52 |c_~#a~0.base|) .cse9 0))))) (store .cse51 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse51 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse50 |c_~#a~0.base| (store (select .cse50 |c_~#a~0.base|) .cse3 0))))) (let ((.cse48 (select .cse49 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse48 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse49 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse48 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse13) 0)) (not (= 0 (select .cse48 .cse4))) (not (= (select .cse48 .cse5) 0)))))) (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse54 (let ((.cse55 (let ((.cse56 (let ((.cse57 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse1 v_ArrVal_359)))) (store .cse57 |c_~#a~0.base| (store (select .cse57 |c_~#a~0.base|) .cse9 0))))) (store .cse56 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse56 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse55 |c_~#a~0.base| (store (select .cse55 |c_~#a~0.base|) .cse3 0))))) (let ((.cse53 (select .cse54 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse53 .cse1) 0)) (not (= 0 (select .cse53 .cse4))) (not (= (select .cse53 .cse5) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse54 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse53 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse36) 0)))))) (forall ((v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse59 (let ((.cse60 (let ((.cse61 (let ((.cse62 (let ((.cse63 (let ((.cse64 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse5 v_ArrVal_354)))) (store .cse64 |c_~#a~0.base| (store (select .cse64 |c_~#a~0.base|) .cse13 0))))) (store .cse63 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse63 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse1 v_ArrVal_359))))) (store .cse62 |c_~#a~0.base| (store (select .cse62 |c_~#a~0.base|) .cse9 0))))) (store .cse61 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse61 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse60 |c_~#a~0.base| (store (select .cse60 |c_~#a~0.base|) .cse3 0))))) (let ((.cse58 (select .cse59 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse58 .cse4) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse59 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse58 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse36) 0)) (not (= (select .cse58 .cse1) 0)) (not (= (select .cse58 .cse5) 0)))))) (forall ((v_ArrVal_362 Int)) (let ((.cse66 (let ((.cse67 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse4 v_ArrVal_362)))) (store .cse67 |c_~#a~0.base| (store (select .cse67 |c_~#a~0.base|) .cse3 0))))) (let ((.cse65 (select .cse66 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse65 .cse5) 0)) (not (= (select .cse65 .cse1) 0)) (not (= (select .cse65 .cse4) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse66 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse65 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse3) 0))))))))) is different from true [2022-12-13 13:06:03,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:06:06,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:06:09,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:06:17,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:06:19,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:06:25,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:06:33,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:06:39,722 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse68 (* |c_ULTIMATE.start_main_~i~2#1| 28))) (let ((.cse36 (+ .cse68 |c_~#a~0.offset|)) (.cse9 (+ .cse68 2 |c_~#a~0.offset|)) (.cse13 (+ .cse68 |c_~#a~0.offset| 1)) (.cse5 (+ |c_t_funThread1of1ForFork0_~p~0#1.offset| 1)) (.cse1 (+ |c_t_funThread1of1ForFork0_~p~0#1.offset| 2)) (.cse3 (+ .cse68 3 |c_~#a~0.offset|)) (.cse10 (select |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base|)) (.cse4 (+ |c_t_funThread1of1ForFork0_~p~0#1.offset| 3))) (and (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse2 (let ((.cse6 (let ((.cse7 (let ((.cse8 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse1 v_ArrVal_359)))) (store .cse8 |c_~#a~0.base| (store (select .cse8 |c_~#a~0.base|) .cse9 0))))) (store .cse7 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse7 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse6 |c_~#a~0.base| (store (select .cse6 |c_~#a~0.base|) .cse3 0))))) (let ((.cse0 (select .cse2 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse0 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse2 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse3) 0)) (not (= 0 (select .cse0 .cse4))) (not (= (select .cse0 .cse5) 0)))))) (forall ((v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse12 (let ((.cse14 (let ((.cse15 (let ((.cse16 (let ((.cse17 (let ((.cse18 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse5 v_ArrVal_354)))) (store .cse18 |c_~#a~0.base| (store (select .cse18 |c_~#a~0.base|) .cse13 0))))) (store .cse17 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse17 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse1 v_ArrVal_359))))) (store .cse16 |c_~#a~0.base| (store (select .cse16 |c_~#a~0.base|) .cse9 0))))) (store .cse15 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse15 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse14 |c_~#a~0.base| (store (select .cse14 |c_~#a~0.base|) .cse3 0))))) (let ((.cse11 (select .cse12 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse11 .cse4) 0)) (not (= (select .cse11 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse12 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse11 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse13) 0)) (not (= (select .cse11 .cse5) 0)))))) (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse20 (let ((.cse21 (let ((.cse22 (let ((.cse23 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse1 v_ArrVal_359)))) (store .cse23 |c_~#a~0.base| (store (select .cse23 |c_~#a~0.base|) .cse9 0))))) (store .cse22 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse22 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse21 |c_~#a~0.base| (store (select .cse21 |c_~#a~0.base|) .cse3 0))))) (let ((.cse19 (select .cse20 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse19 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse20 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse19 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse9) 0)) (not (= 0 (select .cse19 .cse4))) (not (= (select .cse19 .cse5) 0)))))) (forall ((v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse25 (let ((.cse26 (let ((.cse27 (let ((.cse28 (let ((.cse29 (let ((.cse30 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse5 v_ArrVal_354)))) (store .cse30 |c_~#a~0.base| (store (select .cse30 |c_~#a~0.base|) .cse13 0))))) (store .cse29 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse29 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse1 v_ArrVal_359))))) (store .cse28 |c_~#a~0.base| (store (select .cse28 |c_~#a~0.base|) .cse9 0))))) (store .cse27 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse27 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse26 |c_~#a~0.base| (store (select .cse26 |c_~#a~0.base|) .cse3 0))))) (let ((.cse24 (select .cse25 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse24 .cse4) 0)) (not (= (select .cse24 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse25 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse24 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse9) 0)) (not (= (select .cse24 .cse5) 0)))))) (forall ((v_ArrVal_362 Int)) (let ((.cse31 (let ((.cse33 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse4 v_ArrVal_362)))) (store .cse33 |c_~#a~0.base| (store (select .cse33 |c_~#a~0.base|) .cse3 0))))) (let ((.cse32 (select .cse31 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse31 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse32 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse13) 0)) (not (= (select .cse32 .cse5) 0)) (not (= (select .cse32 .cse1) 0)) (not (= (select .cse32 .cse4) 0)))))) (forall ((v_ArrVal_362 Int)) (let ((.cse35 (let ((.cse37 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse4 v_ArrVal_362)))) (store .cse37 |c_~#a~0.base| (store (select .cse37 |c_~#a~0.base|) .cse3 0))))) (let ((.cse34 (select .cse35 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse34 .cse5) 0)) (not (= (select .cse34 .cse1) 0)) (not (= (select .cse34 .cse4) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse35 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse34 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse36) 0)))))) (or (not (= (select .cse10 .cse5) 0)) (not (= (select .cse10 .cse1) 0)) (and (forall ((v_ArrVal_367 Int)) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse9) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse13) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse3) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse36) 0))) (not (= (select .cse10 .cse4) 0))) (forall ((v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse39 (let ((.cse40 (let ((.cse41 (let ((.cse42 (let ((.cse43 (let ((.cse44 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse5 v_ArrVal_354)))) (store .cse44 |c_~#a~0.base| (store (select .cse44 |c_~#a~0.base|) .cse13 0))))) (store .cse43 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse43 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse1 v_ArrVal_359))))) (store .cse42 |c_~#a~0.base| (store (select .cse42 |c_~#a~0.base|) .cse9 0))))) (store .cse41 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse41 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse40 |c_~#a~0.base| (store (select .cse40 |c_~#a~0.base|) .cse3 0))))) (let ((.cse38 (select .cse39 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse38 .cse4) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse39 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse38 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse3) 0)) (not (= (select .cse38 .cse1) 0)) (not (= (select .cse38 .cse5) 0)))))) (forall ((v_ArrVal_362 Int)) (let ((.cse45 (let ((.cse47 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse4 v_ArrVal_362)))) (store .cse47 |c_~#a~0.base| (store (select .cse47 |c_~#a~0.base|) .cse3 0))))) (let ((.cse46 (select .cse45 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse45 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse46 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse9) 0)) (not (= (select .cse46 .cse5) 0)) (not (= (select .cse46 .cse1) 0)) (not (= (select .cse46 .cse4) 0)))))) (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse49 (let ((.cse50 (let ((.cse51 (let ((.cse52 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse1 v_ArrVal_359)))) (store .cse52 |c_~#a~0.base| (store (select .cse52 |c_~#a~0.base|) .cse9 0))))) (store .cse51 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse51 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse50 |c_~#a~0.base| (store (select .cse50 |c_~#a~0.base|) .cse3 0))))) (let ((.cse48 (select .cse49 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse48 .cse1) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse49 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse48 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse13) 0)) (not (= 0 (select .cse48 .cse4))) (not (= (select .cse48 .cse5) 0)))))) (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse54 (let ((.cse55 (let ((.cse56 (let ((.cse57 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse1 v_ArrVal_359)))) (store .cse57 |c_~#a~0.base| (store (select .cse57 |c_~#a~0.base|) .cse9 0))))) (store .cse56 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse56 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse55 |c_~#a~0.base| (store (select .cse55 |c_~#a~0.base|) .cse3 0))))) (let ((.cse53 (select .cse54 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse53 .cse1) 0)) (not (= 0 (select .cse53 .cse4))) (not (= (select .cse53 .cse5) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse54 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse53 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse36) 0)))))) (forall ((v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (let ((.cse59 (let ((.cse60 (let ((.cse61 (let ((.cse62 (let ((.cse63 (let ((.cse64 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse5 v_ArrVal_354)))) (store .cse64 |c_~#a~0.base| (store (select .cse64 |c_~#a~0.base|) .cse13 0))))) (store .cse63 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse63 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse1 v_ArrVal_359))))) (store .cse62 |c_~#a~0.base| (store (select .cse62 |c_~#a~0.base|) .cse9 0))))) (store .cse61 |c_t_funThread1of1ForFork0_~p~0#1.base| (store (select .cse61 |c_t_funThread1of1ForFork0_~p~0#1.base|) .cse4 v_ArrVal_362))))) (store .cse60 |c_~#a~0.base| (store (select .cse60 |c_~#a~0.base|) .cse3 0))))) (let ((.cse58 (select .cse59 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse58 .cse4) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse59 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse58 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse36) 0)) (not (= (select .cse58 .cse1) 0)) (not (= (select .cse58 .cse5) 0)))))) (forall ((v_ArrVal_362 Int)) (let ((.cse66 (let ((.cse67 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 .cse4 v_ArrVal_362)))) (store .cse67 |c_~#a~0.base| (store (select .cse67 |c_~#a~0.base|) .cse3 0))))) (let ((.cse65 (select .cse66 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse65 .cse5) 0)) (not (= (select .cse65 .cse1) 0)) (not (= (select .cse65 .cse4) 0)) (forall ((v_ArrVal_367 Int)) (= (select (select (store .cse66 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse65 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_367)) |c_~#a~0.base|) .cse3) 0))))))))) is different from true [2022-12-13 13:06:44,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:06:56,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:07:01,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:07:01,698 INFO L130 PetriNetUnfolder]: 1278/2778 cut-off events. [2022-12-13 13:07:01,698 INFO L131 PetriNetUnfolder]: For 6521/6571 co-relation queries the response was YES. [2022-12-13 13:07:01,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12205 conditions, 2778 events. 1278/2778 cut-off events. For 6521/6571 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 18922 event pairs, 175 based on Foata normal form. 18/2796 useless extension candidates. Maximal degree in co-relation 12135. Up to 824 conditions per place. [2022-12-13 13:07:01,713 INFO L137 encePairwiseOnDemand]: 158/182 looper letters, 473 selfloop transitions, 188 changer transitions 30/697 dead transitions. [2022-12-13 13:07:01,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 697 transitions, 6828 flow [2022-12-13 13:07:01,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 13:07:01,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-13 13:07:01,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1859 transitions. [2022-12-13 13:07:01,719 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4440993788819876 [2022-12-13 13:07:01,719 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1859 transitions. [2022-12-13 13:07:01,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1859 transitions. [2022-12-13 13:07:01,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:07:01,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1859 transitions. [2022-12-13 13:07:01,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 80.82608695652173) internal successors, (1859), 23 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:01,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 182.0) internal successors, (4368), 24 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:01,726 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 182.0) internal successors, (4368), 24 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:01,726 INFO L175 Difference]: Start difference. First operand has 99 places, 176 transitions, 1418 flow. Second operand 23 states and 1859 transitions. [2022-12-13 13:07:01,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 697 transitions, 6828 flow [2022-12-13 13:07:01,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 697 transitions, 6624 flow, removed 102 selfloop flow, removed 0 redundant places. [2022-12-13 13:07:01,776 INFO L231 Difference]: Finished difference. Result has 138 places, 366 transitions, 3870 flow [2022-12-13 13:07:01,776 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1350, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3870, PETRI_PLACES=138, PETRI_TRANSITIONS=366} [2022-12-13 13:07:01,776 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 99 predicate places. [2022-12-13 13:07:01,777 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 366 transitions, 3870 flow [2022-12-13 13:07:01,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 70.46153846153847) internal successors, (916), 13 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:01,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:07:01,777 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:07:01,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 13:07:01,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 13:07:01,978 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:07:01,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:07:01,980 INFO L85 PathProgramCache]: Analyzing trace with hash 650835563, now seen corresponding path program 2 times [2022-12-13 13:07:01,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:07:01,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537892396] [2022-12-13 13:07:01,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:07:01,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:07:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:07:02,561 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:07:02,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:07:02,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537892396] [2022-12-13 13:07:02,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537892396] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:07:02,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:07:02,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:07:02,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925092713] [2022-12-13 13:07:02,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:07:02,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:07:02,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:07:02,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:07:02,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:07:02,994 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2022-12-13 13:07:02,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 366 transitions, 3870 flow. Second operand has 9 states, 9 states have (on average 77.77777777777777) internal successors, (700), 9 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:02,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:07:02,995 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2022-12-13 13:07:02,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:07:03,859 INFO L130 PetriNetUnfolder]: 1137/2627 cut-off events. [2022-12-13 13:07:03,859 INFO L131 PetriNetUnfolder]: For 13183/13291 co-relation queries the response was YES. [2022-12-13 13:07:03,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14607 conditions, 2627 events. 1137/2627 cut-off events. For 13183/13291 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 18670 event pairs, 116 based on Foata normal form. 24/2643 useless extension candidates. Maximal degree in co-relation 14520. Up to 1131 conditions per place. [2022-12-13 13:07:03,879 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 342 selfloop transitions, 152 changer transitions 35/569 dead transitions. [2022-12-13 13:07:03,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 569 transitions, 6733 flow [2022-12-13 13:07:03,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:07:03,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 13:07:03,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 890 transitions. [2022-12-13 13:07:03,882 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.489010989010989 [2022-12-13 13:07:03,882 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 890 transitions. [2022-12-13 13:07:03,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 890 transitions. [2022-12-13 13:07:03,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:07:03,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 890 transitions. [2022-12-13 13:07:03,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.0) internal successors, (890), 10 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:03,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:03,888 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:03,888 INFO L175 Difference]: Start difference. First operand has 138 places, 366 transitions, 3870 flow. Second operand 10 states and 890 transitions. [2022-12-13 13:07:03,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 569 transitions, 6733 flow [2022-12-13 13:07:03,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 569 transitions, 6617 flow, removed 58 selfloop flow, removed 0 redundant places. [2022-12-13 13:07:03,964 INFO L231 Difference]: Finished difference. Result has 153 places, 404 transitions, 4766 flow [2022-12-13 13:07:03,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=3764, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4766, PETRI_PLACES=153, PETRI_TRANSITIONS=404} [2022-12-13 13:07:03,965 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 114 predicate places. [2022-12-13 13:07:03,965 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 404 transitions, 4766 flow [2022-12-13 13:07:03,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.77777777777777) internal successors, (700), 9 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:03,966 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:07:03,966 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:07:03,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 13:07:03,966 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:07:03,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:07:03,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1161320213, now seen corresponding path program 3 times [2022-12-13 13:07:03,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:07:03,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196345517] [2022-12-13 13:07:03,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:07:03,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:07:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:07:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:07:04,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:07:04,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196345517] [2022-12-13 13:07:04,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196345517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:07:04,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:07:04,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:07:04,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991530958] [2022-12-13 13:07:04,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:07:04,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:07:04,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:07:04,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:07:04,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:07:05,133 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2022-12-13 13:07:05,134 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 404 transitions, 4766 flow. Second operand has 10 states, 10 states have (on average 75.7) internal successors, (757), 10 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:05,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:07:05,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2022-12-13 13:07:05,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:07:06,242 INFO L130 PetriNetUnfolder]: 1186/2723 cut-off events. [2022-12-13 13:07:06,242 INFO L131 PetriNetUnfolder]: For 18132/18242 co-relation queries the response was YES. [2022-12-13 13:07:06,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16174 conditions, 2723 events. 1186/2723 cut-off events. For 18132/18242 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 19424 event pairs, 121 based on Foata normal form. 16/2731 useless extension candidates. Maximal degree in co-relation 16081. Up to 1505 conditions per place. [2022-12-13 13:07:06,261 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 302 selfloop transitions, 161 changer transitions 61/554 dead transitions. [2022-12-13 13:07:06,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 554 transitions, 7438 flow [2022-12-13 13:07:06,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:07:06,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 13:07:06,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 867 transitions. [2022-12-13 13:07:06,263 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47637362637362635 [2022-12-13 13:07:06,263 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 867 transitions. [2022-12-13 13:07:06,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 867 transitions. [2022-12-13 13:07:06,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:07:06,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 867 transitions. [2022-12-13 13:07:06,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.7) internal successors, (867), 10 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:06,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:06,266 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:06,266 INFO L175 Difference]: Start difference. First operand has 153 places, 404 transitions, 4766 flow. Second operand 10 states and 867 transitions. [2022-12-13 13:07:06,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 554 transitions, 7438 flow [2022-12-13 13:07:06,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 554 transitions, 7418 flow, removed 10 selfloop flow, removed 0 redundant places. [2022-12-13 13:07:06,351 INFO L231 Difference]: Finished difference. Result has 170 places, 427 transitions, 5820 flow [2022-12-13 13:07:06,351 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4752, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5820, PETRI_PLACES=170, PETRI_TRANSITIONS=427} [2022-12-13 13:07:06,352 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 131 predicate places. [2022-12-13 13:07:06,352 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 427 transitions, 5820 flow [2022-12-13 13:07:06,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.7) internal successors, (757), 10 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:06,352 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:07:06,352 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:07:06,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 13:07:06,353 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:07:06,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:07:06,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1157546576, now seen corresponding path program 1 times [2022-12-13 13:07:06,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:07:06,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401153404] [2022-12-13 13:07:06,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:07:06,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:07:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:07:07,486 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:07:07,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:07:07,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401153404] [2022-12-13 13:07:07,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401153404] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:07:07,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:07:07,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:07:07,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519491410] [2022-12-13 13:07:07,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:07:07,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:07:07,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:07:07,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:07:07,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:07:07,818 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2022-12-13 13:07:07,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 427 transitions, 5820 flow. Second operand has 10 states, 10 states have (on average 75.7) internal successors, (757), 10 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:07,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:07:07,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2022-12-13 13:07:07,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:07:08,933 INFO L130 PetriNetUnfolder]: 1316/2992 cut-off events. [2022-12-13 13:07:08,933 INFO L131 PetriNetUnfolder]: For 27580/27720 co-relation queries the response was YES. [2022-12-13 13:07:08,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19011 conditions, 2992 events. 1316/2992 cut-off events. For 27580/27720 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 21642 event pairs, 186 based on Foata normal form. 25/3006 useless extension candidates. Maximal degree in co-relation 18910. Up to 1088 conditions per place. [2022-12-13 13:07:08,954 INFO L137 encePairwiseOnDemand]: 165/182 looper letters, 544 selfloop transitions, 128 changer transitions 27/745 dead transitions. [2022-12-13 13:07:08,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 745 transitions, 10362 flow [2022-12-13 13:07:08,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:07:08,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 13:07:08,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 965 transitions. [2022-12-13 13:07:08,957 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.482017982017982 [2022-12-13 13:07:08,957 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 965 transitions. [2022-12-13 13:07:08,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 965 transitions. [2022-12-13 13:07:08,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:07:08,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 965 transitions. [2022-12-13 13:07:08,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.72727272727273) internal successors, (965), 11 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:08,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:08,960 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:08,960 INFO L175 Difference]: Start difference. First operand has 170 places, 427 transitions, 5820 flow. Second operand 11 states and 965 transitions. [2022-12-13 13:07:08,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 745 transitions, 10362 flow [2022-12-13 13:07:09,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 745 transitions, 10182 flow, removed 10 selfloop flow, removed 6 redundant places. [2022-12-13 13:07:09,070 INFO L231 Difference]: Finished difference. Result has 180 places, 521 transitions, 7229 flow [2022-12-13 13:07:09,070 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5704, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7229, PETRI_PLACES=180, PETRI_TRANSITIONS=521} [2022-12-13 13:07:09,071 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 141 predicate places. [2022-12-13 13:07:09,071 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 521 transitions, 7229 flow [2022-12-13 13:07:09,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.7) internal successors, (757), 10 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:09,071 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:07:09,071 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:07:09,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 13:07:09,071 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:07:09,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:07:09,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1019993455, now seen corresponding path program 4 times [2022-12-13 13:07:09,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:07:09,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128056126] [2022-12-13 13:07:09,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:07:09,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:07:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:07:09,550 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:07:09,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:07:09,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128056126] [2022-12-13 13:07:09,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128056126] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:07:09,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:07:09,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:07:09,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537746134] [2022-12-13 13:07:09,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:07:09,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:07:09,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:07:09,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:07:09,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:07:09,867 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2022-12-13 13:07:09,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 521 transitions, 7229 flow. Second operand has 10 states, 10 states have (on average 75.7) internal successors, (757), 10 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:09,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:07:09,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2022-12-13 13:07:09,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:07:11,294 INFO L130 PetriNetUnfolder]: 1348/3097 cut-off events. [2022-12-13 13:07:11,294 INFO L131 PetriNetUnfolder]: For 31573/31724 co-relation queries the response was YES. [2022-12-13 13:07:11,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20792 conditions, 3097 events. 1348/3097 cut-off events. For 31573/31724 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 22795 event pairs, 147 based on Foata normal form. 21/3099 useless extension candidates. Maximal degree in co-relation 20685. Up to 1332 conditions per place. [2022-12-13 13:07:11,315 INFO L137 encePairwiseOnDemand]: 165/182 looper letters, 479 selfloop transitions, 173 changer transitions 34/741 dead transitions. [2022-12-13 13:07:11,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 741 transitions, 10955 flow [2022-12-13 13:07:11,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:07:11,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 13:07:11,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 973 transitions. [2022-12-13 13:07:11,317 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.486013986013986 [2022-12-13 13:07:11,317 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 973 transitions. [2022-12-13 13:07:11,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 973 transitions. [2022-12-13 13:07:11,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:07:11,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 973 transitions. [2022-12-13 13:07:11,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 88.45454545454545) internal successors, (973), 11 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:11,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:11,320 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:11,320 INFO L175 Difference]: Start difference. First operand has 180 places, 521 transitions, 7229 flow. Second operand 11 states and 973 transitions. [2022-12-13 13:07:11,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 741 transitions, 10955 flow [2022-12-13 13:07:11,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 741 transitions, 10910 flow, removed 13 selfloop flow, removed 1 redundant places. [2022-12-13 13:07:11,475 INFO L231 Difference]: Finished difference. Result has 195 places, 554 transitions, 8279 flow [2022-12-13 13:07:11,476 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=7208, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8279, PETRI_PLACES=195, PETRI_TRANSITIONS=554} [2022-12-13 13:07:11,476 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 156 predicate places. [2022-12-13 13:07:11,476 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 554 transitions, 8279 flow [2022-12-13 13:07:11,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.7) internal successors, (757), 10 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:11,476 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:07:11,477 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:07:11,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 13:07:11,477 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:07:11,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:07:11,477 INFO L85 PathProgramCache]: Analyzing trace with hash -268315500, now seen corresponding path program 2 times [2022-12-13 13:07:11,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:07:11,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739542797] [2022-12-13 13:07:11,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:07:11,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:07:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:07:12,250 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:07:12,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:07:12,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739542797] [2022-12-13 13:07:12,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739542797] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:07:12,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:07:12,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:07:12,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077168503] [2022-12-13 13:07:12,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:07:12,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:07:12,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:07:12,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:07:12,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:07:12,726 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2022-12-13 13:07:12,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 554 transitions, 8279 flow. Second operand has 10 states, 10 states have (on average 77.5) internal successors, (775), 10 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:12,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:07:12,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2022-12-13 13:07:12,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:07:14,249 INFO L130 PetriNetUnfolder]: 1316/3055 cut-off events. [2022-12-13 13:07:14,249 INFO L131 PetriNetUnfolder]: For 37395/37577 co-relation queries the response was YES. [2022-12-13 13:07:14,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21254 conditions, 3055 events. 1316/3055 cut-off events. For 37395/37577 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 22654 event pairs, 175 based on Foata normal form. 48/3079 useless extension candidates. Maximal degree in co-relation 21140. Up to 1228 conditions per place. [2022-12-13 13:07:14,271 INFO L137 encePairwiseOnDemand]: 166/182 looper letters, 454 selfloop transitions, 118 changer transitions 58/753 dead transitions. [2022-12-13 13:07:14,271 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 753 transitions, 11525 flow [2022-12-13 13:07:14,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 13:07:14,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 13:07:14,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1344 transitions. [2022-12-13 13:07:14,273 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2022-12-13 13:07:14,273 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1344 transitions. [2022-12-13 13:07:14,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1344 transitions. [2022-12-13 13:07:14,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:07:14,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1344 transitions. [2022-12-13 13:07:14,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 84.0) internal successors, (1344), 16 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:14,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 182.0) internal successors, (3094), 17 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:14,277 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 182.0) internal successors, (3094), 17 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:14,277 INFO L175 Difference]: Start difference. First operand has 195 places, 554 transitions, 8279 flow. Second operand 16 states and 1344 transitions. [2022-12-13 13:07:14,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 753 transitions, 11525 flow [2022-12-13 13:07:14,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 753 transitions, 11477 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-12-13 13:07:14,466 INFO L231 Difference]: Finished difference. Result has 222 places, 580 transitions, 9022 flow [2022-12-13 13:07:14,466 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=8231, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9022, PETRI_PLACES=222, PETRI_TRANSITIONS=580} [2022-12-13 13:07:14,467 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 183 predicate places. [2022-12-13 13:07:14,467 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 580 transitions, 9022 flow [2022-12-13 13:07:14,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.5) internal successors, (775), 10 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:14,467 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:07:14,467 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:07:14,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 13:07:14,467 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:07:14,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:07:14,468 INFO L85 PathProgramCache]: Analyzing trace with hash 996876148, now seen corresponding path program 3 times [2022-12-13 13:07:14,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:07:14,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246525248] [2022-12-13 13:07:14,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:07:14,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:07:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:07:15,477 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:07:15,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:07:15,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246525248] [2022-12-13 13:07:15,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246525248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:07:15,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:07:15,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:07:15,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343474067] [2022-12-13 13:07:15,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:07:15,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:07:15,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:07:15,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:07:15,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:07:15,815 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2022-12-13 13:07:15,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 580 transitions, 9022 flow. Second operand has 10 states, 10 states have (on average 75.7) internal successors, (757), 10 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:15,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:07:15,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2022-12-13 13:07:15,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:07:17,204 INFO L130 PetriNetUnfolder]: 1414/3259 cut-off events. [2022-12-13 13:07:17,204 INFO L131 PetriNetUnfolder]: For 45225/45420 co-relation queries the response was YES. [2022-12-13 13:07:17,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24058 conditions, 3259 events. 1414/3259 cut-off events. For 45225/45420 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 24282 event pairs, 174 based on Foata normal form. 50/3298 useless extension candidates. Maximal degree in co-relation 23931. Up to 1272 conditions per place. [2022-12-13 13:07:17,230 INFO L137 encePairwiseOnDemand]: 166/182 looper letters, 469 selfloop transitions, 237 changer transitions 23/784 dead transitions. [2022-12-13 13:07:17,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 784 transitions, 13287 flow [2022-12-13 13:07:17,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:07:17,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 13:07:17,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 869 transitions. [2022-12-13 13:07:17,231 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4774725274725275 [2022-12-13 13:07:17,232 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 869 transitions. [2022-12-13 13:07:17,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 869 transitions. [2022-12-13 13:07:17,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:07:17,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 869 transitions. [2022-12-13 13:07:17,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.9) internal successors, (869), 10 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:17,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:17,234 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:17,234 INFO L175 Difference]: Start difference. First operand has 222 places, 580 transitions, 9022 flow. Second operand 10 states and 869 transitions. [2022-12-13 13:07:17,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 784 transitions, 13287 flow [2022-12-13 13:07:17,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 784 transitions, 13186 flow, removed 50 selfloop flow, removed 5 redundant places. [2022-12-13 13:07:17,436 INFO L231 Difference]: Finished difference. Result has 229 places, 630 transitions, 10760 flow [2022-12-13 13:07:17,437 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=8933, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10760, PETRI_PLACES=229, PETRI_TRANSITIONS=630} [2022-12-13 13:07:17,437 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 190 predicate places. [2022-12-13 13:07:17,437 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 630 transitions, 10760 flow [2022-12-13 13:07:17,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.7) internal successors, (757), 10 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:17,437 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:07:17,437 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:07:17,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 13:07:17,437 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:07:17,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:07:17,438 INFO L85 PathProgramCache]: Analyzing trace with hash -15753621, now seen corresponding path program 5 times [2022-12-13 13:07:17,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:07:17,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25685632] [2022-12-13 13:07:17,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:07:17,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:07:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:07:18,517 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:07:18,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:07:18,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25685632] [2022-12-13 13:07:18,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25685632] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:07:18,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:07:18,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 13:07:18,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978561558] [2022-12-13 13:07:18,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:07:18,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 13:07:18,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:07:18,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 13:07:18,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:07:19,017 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 182 [2022-12-13 13:07:19,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 630 transitions, 10760 flow. Second operand has 11 states, 11 states have (on average 73.63636363636364) internal successors, (810), 11 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:19,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:07:19,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 182 [2022-12-13 13:07:19,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:07:20,927 INFO L130 PetriNetUnfolder]: 1553/3555 cut-off events. [2022-12-13 13:07:20,927 INFO L131 PetriNetUnfolder]: For 59254/59427 co-relation queries the response was YES. [2022-12-13 13:07:20,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28202 conditions, 3555 events. 1553/3555 cut-off events. For 59254/59427 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 26990 event pairs, 172 based on Foata normal form. 42/3581 useless extension candidates. Maximal degree in co-relation 28072. Up to 1869 conditions per place. [2022-12-13 13:07:20,952 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 492 selfloop transitions, 263 changer transitions 22/820 dead transitions. [2022-12-13 13:07:20,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 820 transitions, 15289 flow [2022-12-13 13:07:20,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 13:07:20,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 13:07:20,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1087 transitions. [2022-12-13 13:07:20,954 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45942519019442096 [2022-12-13 13:07:20,954 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1087 transitions. [2022-12-13 13:07:20,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1087 transitions. [2022-12-13 13:07:20,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:07:20,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1087 transitions. [2022-12-13 13:07:20,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 83.61538461538461) internal successors, (1087), 13 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:20,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:20,957 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:20,957 INFO L175 Difference]: Start difference. First operand has 229 places, 630 transitions, 10760 flow. Second operand 13 states and 1087 transitions. [2022-12-13 13:07:20,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 820 transitions, 15289 flow [2022-12-13 13:07:21,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 820 transitions, 15239 flow, removed 9 selfloop flow, removed 2 redundant places. [2022-12-13 13:07:21,209 INFO L231 Difference]: Finished difference. Result has 249 places, 694 transitions, 13039 flow [2022-12-13 13:07:21,209 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=10726, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=630, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=206, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13039, PETRI_PLACES=249, PETRI_TRANSITIONS=694} [2022-12-13 13:07:21,210 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 210 predicate places. [2022-12-13 13:07:21,210 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 694 transitions, 13039 flow [2022-12-13 13:07:21,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 73.63636363636364) internal successors, (810), 11 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:21,210 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:07:21,210 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:07:21,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 13:07:21,211 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:07:21,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:07:21,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1081421229, now seen corresponding path program 1 times [2022-12-13 13:07:21,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:07:21,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135918784] [2022-12-13 13:07:21,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:07:21,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:07:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:07:21,661 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:07:21,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:07:21,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135918784] [2022-12-13 13:07:21,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135918784] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:07:21,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:07:21,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 13:07:21,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980715977] [2022-12-13 13:07:21,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:07:21,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 13:07:21,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:07:21,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 13:07:21,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-13 13:07:22,019 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 182 [2022-12-13 13:07:22,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 694 transitions, 13039 flow. Second operand has 13 states, 13 states have (on average 65.53846153846153) internal successors, (852), 13 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:22,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:07:22,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 182 [2022-12-13 13:07:22,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:07:23,914 INFO L130 PetriNetUnfolder]: 1646/3723 cut-off events. [2022-12-13 13:07:23,914 INFO L131 PetriNetUnfolder]: For 76266/76356 co-relation queries the response was YES. [2022-12-13 13:07:23,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31358 conditions, 3723 events. 1646/3723 cut-off events. For 76266/76356 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 27940 event pairs, 189 based on Foata normal form. 3/3712 useless extension candidates. Maximal degree in co-relation 31219. Up to 1946 conditions per place. [2022-12-13 13:07:23,944 INFO L137 encePairwiseOnDemand]: 160/182 looper letters, 607 selfloop transitions, 237 changer transitions 59/909 dead transitions. [2022-12-13 13:07:23,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 909 transitions, 18124 flow [2022-12-13 13:07:23,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 13:07:23,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 13:07:23,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 974 transitions. [2022-12-13 13:07:23,946 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41166525781910396 [2022-12-13 13:07:23,946 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 974 transitions. [2022-12-13 13:07:23,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 974 transitions. [2022-12-13 13:07:23,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:07:23,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 974 transitions. [2022-12-13 13:07:23,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.92307692307692) internal successors, (974), 13 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:23,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:23,949 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:23,949 INFO L175 Difference]: Start difference. First operand has 249 places, 694 transitions, 13039 flow. Second operand 13 states and 974 transitions. [2022-12-13 13:07:23,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 909 transitions, 18124 flow [2022-12-13 13:07:24,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 909 transitions, 17802 flow, removed 94 selfloop flow, removed 2 redundant places. [2022-12-13 13:07:24,281 INFO L231 Difference]: Finished difference. Result has 267 places, 734 transitions, 14069 flow [2022-12-13 13:07:24,281 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=12781, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=203, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14069, PETRI_PLACES=267, PETRI_TRANSITIONS=734} [2022-12-13 13:07:24,281 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 228 predicate places. [2022-12-13 13:07:24,282 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 734 transitions, 14069 flow [2022-12-13 13:07:24,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 65.53846153846153) internal successors, (852), 13 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:24,282 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:07:24,282 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:07:24,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 13:07:24,282 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:07:24,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:07:24,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1904318487, now seen corresponding path program 6 times [2022-12-13 13:07:24,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:07:24,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030266225] [2022-12-13 13:07:24,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:07:24,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:07:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:07:26,173 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:07:26,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:07:26,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030266225] [2022-12-13 13:07:26,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030266225] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:07:26,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373557162] [2022-12-13 13:07:26,174 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 13:07:26,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:07:26,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:07:26,175 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:07:26,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 13:07:26,253 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-12-13 13:07:26,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:07:26,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 13:07:26,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:07:26,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 13:07:26,301 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:07:26,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:07:26,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 13:07:26,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 13:07:26,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 13:07:26,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 13:07:26,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:26,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:26,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:26,670 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:07:26,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 67 [2022-12-13 13:07:28,756 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:07:28,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:07:28,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373557162] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:07:28,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:07:28,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 27 [2022-12-13 13:07:28,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156426121] [2022-12-13 13:07:28,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:07:28,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:07:28,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:07:28,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:07:28,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2022-12-13 13:07:29,118 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2022-12-13 13:07:29,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 734 transitions, 14069 flow. Second operand has 9 states, 9 states have (on average 77.77777777777777) internal successors, (700), 9 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:29,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:07:29,119 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2022-12-13 13:07:29,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:07:31,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:07:32,883 INFO L130 PetriNetUnfolder]: 1499/3500 cut-off events. [2022-12-13 13:07:32,884 INFO L131 PetriNetUnfolder]: For 77379/77591 co-relation queries the response was YES. [2022-12-13 13:07:32,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30586 conditions, 3500 events. 1499/3500 cut-off events. For 77379/77591 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 26937 event pairs, 199 based on Foata normal form. 78/3557 useless extension candidates. Maximal degree in co-relation 30438. Up to 1589 conditions per place. [2022-12-13 13:07:32,914 INFO L137 encePairwiseOnDemand]: 171/182 looper letters, 661 selfloop transitions, 114 changer transitions 31/926 dead transitions. [2022-12-13 13:07:32,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 926 transitions, 18231 flow [2022-12-13 13:07:32,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:07:32,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:07:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 802 transitions. [2022-12-13 13:07:32,916 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4896214896214896 [2022-12-13 13:07:32,916 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 802 transitions. [2022-12-13 13:07:32,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 802 transitions. [2022-12-13 13:07:32,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:07:32,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 802 transitions. [2022-12-13 13:07:32,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 89.11111111111111) internal successors, (802), 9 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:32,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:32,918 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:32,918 INFO L175 Difference]: Start difference. First operand has 267 places, 734 transitions, 14069 flow. Second operand 9 states and 802 transitions. [2022-12-13 13:07:32,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 926 transitions, 18231 flow [2022-12-13 13:07:33,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 926 transitions, 18139 flow, removed 46 selfloop flow, removed 0 redundant places. [2022-12-13 13:07:33,295 INFO L231 Difference]: Finished difference. Result has 279 places, 758 transitions, 14997 flow [2022-12-13 13:07:33,296 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=13993, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=734, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=620, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=14997, PETRI_PLACES=279, PETRI_TRANSITIONS=758} [2022-12-13 13:07:33,296 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 240 predicate places. [2022-12-13 13:07:33,296 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 758 transitions, 14997 flow [2022-12-13 13:07:33,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.77777777777777) internal successors, (700), 9 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:07:33,296 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:07:33,296 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:07:33,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 13:07:33,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 13:07:33,497 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:07:33,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:07:33,497 INFO L85 PathProgramCache]: Analyzing trace with hash 637244501, now seen corresponding path program 7 times [2022-12-13 13:07:33,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:07:33,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285145542] [2022-12-13 13:07:33,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:07:33,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:07:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:07:35,781 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:07:35,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:07:35,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285145542] [2022-12-13 13:07:35,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285145542] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:07:35,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716775793] [2022-12-13 13:07:35,782 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 13:07:35,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:07:35,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:07:35,783 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:07:35,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 13:07:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:07:35,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 65 conjunts are in the unsatisfiable core [2022-12-13 13:07:35,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:07:36,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 13:07:36,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 13:07:36,099 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:07:36,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:07:36,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-13 13:07:36,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-12-13 13:07:36,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-12-13 13:07:36,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-12-13 13:07:36,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 13:07:36,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 13:07:36,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 13:07:36,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:07:36,582 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:07:36,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 86 treesize of output 103 [2022-12-13 13:07:44,705 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 13:07:44,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:08:09,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 298 [2022-12-13 13:08:11,331 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:08:11,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716775793] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 13:08:11,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:08:11,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [20, 17] total 49 [2022-12-13 13:08:11,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493761740] [2022-12-13 13:08:11,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:08:11,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 13:08:11,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:08:11,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 13:08:11,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=2193, Unknown=5, NotChecked=0, Total=2450 [2022-12-13 13:08:15,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:08:18,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:08:19,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:08:21,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:08:23,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:08:29,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:08:36,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:08:38,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:08:40,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:08:41,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:08:49,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:08:51,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:08:57,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:09:01,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:09:05,383 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 182 [2022-12-13 13:09:05,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 758 transitions, 14997 flow. Second operand has 14 states, 14 states have (on average 61.42857142857143) internal successors, (860), 14 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:09:05,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:09:05,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 182 [2022-12-13 13:09:05,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:09:09,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:09:20,795 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 166 DAG size of output: 146 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 13:09:24,274 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse31 (* |c_ULTIMATE.start_main_~i~2#1| 28))) (let ((.cse10 (select |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base|)) (.cse1 (+ |c_t_funThread1of1ForFork0_~p~0#1.offset| 2)) (.cse7 (+ .cse31 |c_~#a~0.offset| 1)) (.cse3 (+ .cse31 |c_~#a~0.offset|)) (.cse8 (+ .cse31 2 |c_~#a~0.offset|)) (.cse4 (+ |c_t_funThread1of1ForFork0_~p~0#1.offset| 3)) (.cse5 (+ |c_t_funThread1of1ForFork0_~p~0#1.offset| 1)) (.cse19 (select |c_#race| |c_~#a~0.base|)) (.cse9 (+ .cse31 3 |c_~#a~0.offset|))) (and (forall ((v_ArrVal_972 Int) (v_ArrVal_979 Int) (v_ArrVal_977 Int) (v_ArrVal_975 Int)) (let ((.cse2 (let ((.cse6 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store (store (store (store .cse10 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_972) .cse5 v_ArrVal_975) .cse1 v_ArrVal_977) .cse4 v_ArrVal_979)))) (store .cse6 |c_~#a~0.base| (store (store (store (select .cse6 |c_~#a~0.base|) .cse7 0) .cse8 0) .cse9 0))))) (let ((.cse0 (select .cse2 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse0 .cse1) 0)) (forall ((v_ArrVal_987 Int)) (= 0 (select (select (store .cse2 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse3))) (not (= (select .cse0 .cse4) 0)) (not (= (select .cse0 .cse5) 0)))))) (forall ((v_ArrVal_972 Int) (v_ArrVal_979 Int) (v_ArrVal_977 Int) (v_ArrVal_975 Int)) (let ((.cse12 (let ((.cse13 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store (store (store (store .cse10 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_972) .cse5 v_ArrVal_975) .cse1 v_ArrVal_977) .cse4 v_ArrVal_979)))) (store .cse13 |c_~#a~0.base| (store (store (store (select .cse13 |c_~#a~0.base|) .cse7 0) .cse8 0) .cse9 0))))) (let ((.cse11 (select .cse12 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse11 .cse1) 0)) (forall ((v_ArrVal_987 Int)) (= (select (select (store .cse12 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse11 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse9) 0)) (not (= (select .cse11 .cse4) 0)) (not (= (select .cse11 .cse5) 0)))))) (or (not (= (select .cse10 .cse5) 0)) (not (= (select .cse10 .cse1) 0)) (not (= (select .cse10 .cse4) 0)) (and (forall ((v_ArrVal_987 Int)) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse8) 0)) (forall ((v_ArrVal_987 Int)) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse3) 0)) (forall ((v_ArrVal_987 Int)) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse9) 0)) (forall ((v_ArrVal_987 Int)) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse10 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse7) 0)))) (forall ((|t_funThread1of1ForFork0_#t~nondet30#1| Int)) (let ((.cse20 (* |t_funThread1of1ForFork0_#t~nondet30#1| 28))) (or (forall ((v_ArrVal_972 Int) (v_ArrVal_979 Int) (v_ArrVal_977 Int) (v_ArrVal_975 Int)) (let ((.cse17 (+ |c_~#a~0.offset| .cse20)) (.cse16 (+ |c_~#a~0.offset| .cse20 1)) (.cse15 (+ 2 |c_~#a~0.offset| .cse20)) (.cse18 (+ 3 |c_~#a~0.offset| .cse20))) (let ((.cse14 (store (store (store (store (store (store (store .cse19 .cse17 v_ArrVal_972) .cse16 v_ArrVal_975) .cse15 v_ArrVal_977) .cse18 v_ArrVal_979) .cse7 0) .cse8 0) .cse9 0))) (or (not (= (select .cse14 .cse15) 0)) (not (= (select .cse14 .cse16) 0)) (forall ((v_ArrVal_987 Int)) (= (select (store .cse14 .cse17 v_ArrVal_987) .cse3) 0)) (not (= (select .cse14 .cse18) 0)))))) (not (= (select (select |c_#pthreadsMutex| |c_~#a~0.base|) (+ |c_~#a~0.offset| 4 .cse20)) 0))))) (forall ((v_ArrVal_972 Int) (v_ArrVal_979 Int) (v_ArrVal_977 Int) (v_ArrVal_975 Int)) (let ((.cse21 (let ((.cse23 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store (store (store (store .cse10 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_972) .cse5 v_ArrVal_975) .cse1 v_ArrVal_977) .cse4 v_ArrVal_979)))) (store .cse23 |c_~#a~0.base| (store (store (store (select .cse23 |c_~#a~0.base|) .cse7 0) .cse8 0) .cse9 0))))) (let ((.cse22 (select .cse21 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (forall ((v_ArrVal_987 Int)) (= (select (select (store .cse21 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse22 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse8) 0)) (not (= (select .cse22 .cse1) 0)) (not (= (select .cse22 .cse4) 0)) (not (= (select .cse22 .cse5) 0)))))) (let ((.cse25 (store |c_#race| |c_~#a~0.base| (store (store .cse19 .cse8 0) .cse9 0)))) (let ((.cse24 (select .cse25 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse24 .cse4) 0)) (and (forall ((v_ArrVal_987 Int)) (= (select (select (store .cse25 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse24 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse8) 0)) (forall ((v_ArrVal_987 Int)) (= (select (select (store .cse25 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse24 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse3) 0)) (forall ((v_ArrVal_987 Int)) (= (select (select (store .cse25 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse24 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse9) 0)) (forall ((v_ArrVal_987 Int)) (= (select (select (store .cse25 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse24 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse7) 0))) (not (= (select .cse24 .cse1) 0)) (not (= (select .cse24 .cse5) 0))))) (forall ((v_ArrVal_972 Int) (v_ArrVal_979 Int) (v_ArrVal_977 Int) (v_ArrVal_975 Int)) (let ((.cse27 (let ((.cse28 (store |c_#race| |c_t_funThread1of1ForFork0_~p~0#1.base| (store (store (store (store .cse10 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_972) .cse5 v_ArrVal_975) .cse1 v_ArrVal_977) .cse4 v_ArrVal_979)))) (store .cse28 |c_~#a~0.base| (store (store (store (select .cse28 |c_~#a~0.base|) .cse7 0) .cse8 0) .cse9 0))))) (let ((.cse26 (select .cse27 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse26 .cse1) 0)) (not (= (select .cse26 .cse4) 0)) (forall ((v_ArrVal_987 Int)) (= (select (select (store .cse27 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse26 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse7) 0)) (not (= (select .cse26 .cse5) 0)))))) (let ((.cse30 (store |c_#race| |c_~#a~0.base| (store .cse19 .cse9 0)))) (let ((.cse29 (select .cse30 |c_t_funThread1of1ForFork0_~p~0#1.base|))) (or (not (= (select .cse29 .cse1) 0)) (and (forall ((v_ArrVal_987 Int)) (= (select (select (store .cse30 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse29 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse7) 0)) (forall ((v_ArrVal_987 Int)) (= (select (select (store .cse30 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse29 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse3) 0)) (forall ((v_ArrVal_987 Int)) (= (select (select (store .cse30 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse29 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse9) 0)) (forall ((v_ArrVal_987 Int)) (= (select (select (store .cse30 |c_t_funThread1of1ForFork0_~p~0#1.base| (store .cse29 |c_t_funThread1of1ForFork0_~p~0#1.offset| v_ArrVal_987)) |c_~#a~0.base|) .cse8) 0))) (not (= (select .cse29 .cse4) 0)) (not (= (select .cse29 .cse5) 0)))))))) is different from true [2022-12-13 13:09:41,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:09:50,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:10:12,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:10:19,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:10:22,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:10:24,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 13:10:57,607 INFO L130 PetriNetUnfolder]: 2689/5881 cut-off events. [2022-12-13 13:10:57,607 INFO L131 PetriNetUnfolder]: For 148034/148034 co-relation queries the response was YES. [2022-12-13 13:10:57,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53442 conditions, 5881 events. 2689/5881 cut-off events. For 148034/148034 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 47212 event pairs, 256 based on Foata normal form. 1/5882 useless extension candidates. Maximal degree in co-relation 53288. Up to 3016 conditions per place. [2022-12-13 13:10:57,656 INFO L137 encePairwiseOnDemand]: 161/182 looper letters, 906 selfloop transitions, 496 changer transitions 11/1413 dead transitions. [2022-12-13 13:10:57,657 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 1413 transitions, 30926 flow [2022-12-13 13:10:57,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 13:10:57,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-13 13:10:57,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1675 transitions. [2022-12-13 13:10:57,659 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.383470695970696 [2022-12-13 13:10:57,659 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 1675 transitions. [2022-12-13 13:10:57,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 1675 transitions. [2022-12-13 13:10:57,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:10:57,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 1675 transitions. [2022-12-13 13:10:57,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 69.79166666666667) internal successors, (1675), 24 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:10:57,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 182.0) internal successors, (4550), 25 states have internal predecessors, (4550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:10:57,664 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 182.0) internal successors, (4550), 25 states have internal predecessors, (4550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:10:57,664 INFO L175 Difference]: Start difference. First operand has 279 places, 758 transitions, 14997 flow. Second operand 24 states and 1675 transitions. [2022-12-13 13:10:57,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 1413 transitions, 30926 flow [2022-12-13 13:10:58,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 1413 transitions, 30461 flow, removed 16 selfloop flow, removed 3 redundant places. [2022-12-13 13:10:58,414 INFO L231 Difference]: Finished difference. Result has 313 places, 1062 transitions, 24310 flow [2022-12-13 13:10:58,415 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=14719, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=758, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=24310, PETRI_PLACES=313, PETRI_TRANSITIONS=1062} [2022-12-13 13:10:58,415 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 274 predicate places. [2022-12-13 13:10:58,415 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 1062 transitions, 24310 flow [2022-12-13 13:10:58,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 61.42857142857143) internal successors, (860), 14 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:10:58,415 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:10:58,415 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:10:58,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 13:10:58,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 13:10:58,617 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:10:58,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:10:58,618 INFO L85 PathProgramCache]: Analyzing trace with hash 270118401, now seen corresponding path program 2 times [2022-12-13 13:10:58,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:10:58,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919560585] [2022-12-13 13:10:58,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:10:58,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:10:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:10:59,084 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:10:59,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:10:59,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919560585] [2022-12-13 13:10:59,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919560585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:10:59,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:10:59,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:10:59,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806502744] [2022-12-13 13:10:59,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:10:59,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:10:59,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:10:59,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:10:59,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:10:59,452 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 13:10:59,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 1062 transitions, 24310 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:10:59,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:10:59,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 13:10:59,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:11:02,762 INFO L130 PetriNetUnfolder]: 2489/5606 cut-off events. [2022-12-13 13:11:02,762 INFO L131 PetriNetUnfolder]: For 163085/163279 co-relation queries the response was YES. [2022-12-13 13:11:02,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53442 conditions, 5606 events. 2489/5606 cut-off events. For 163085/163279 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 45939 event pairs, 418 based on Foata normal form. 12/5598 useless extension candidates. Maximal degree in co-relation 53274. Up to 2822 conditions per place. [2022-12-13 13:11:02,814 INFO L137 encePairwiseOnDemand]: 166/182 looper letters, 940 selfloop transitions, 245 changer transitions 25/1216 dead transitions. [2022-12-13 13:11:02,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 1216 transitions, 28503 flow [2022-12-13 13:11:02,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:11:02,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 13:11:02,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 851 transitions. [2022-12-13 13:11:02,815 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4675824175824176 [2022-12-13 13:11:02,815 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 851 transitions. [2022-12-13 13:11:02,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 851 transitions. [2022-12-13 13:11:02,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:11:02,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 851 transitions. [2022-12-13 13:11:02,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 85.1) internal successors, (851), 10 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:02,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:02,817 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:02,817 INFO L175 Difference]: Start difference. First operand has 313 places, 1062 transitions, 24310 flow. Second operand 10 states and 851 transitions. [2022-12-13 13:11:02,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 1216 transitions, 28503 flow [2022-12-13 13:11:03,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 1216 transitions, 28071 flow, removed 216 selfloop flow, removed 0 redundant places. [2022-12-13 13:11:03,822 INFO L231 Difference]: Finished difference. Result has 327 places, 1109 transitions, 25277 flow [2022-12-13 13:11:03,823 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=23878, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=836, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=25277, PETRI_PLACES=327, PETRI_TRANSITIONS=1109} [2022-12-13 13:11:03,824 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 288 predicate places. [2022-12-13 13:11:03,824 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 1109 transitions, 25277 flow [2022-12-13 13:11:03,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:03,824 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:11:03,824 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:03,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 13:11:03,824 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:11:03,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:03,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1462831363, now seen corresponding path program 1 times [2022-12-13 13:11:03,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:11:03,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211600903] [2022-12-13 13:11:03,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:03,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:11:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:11:05,880 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:11:05,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:11:05,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211600903] [2022-12-13 13:11:05,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211600903] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:11:05,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898311952] [2022-12-13 13:11:05,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:05,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:11:05,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:11:05,881 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:11:05,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 13:11:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:11:06,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-13 13:11:06,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:06,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 13:11:06,196 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:11:06,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:11:06,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 13:11:06,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 13:11:06,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-13 13:11:06,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-13 13:11:06,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:06,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:06,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:06,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:06,533 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:11:06,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2022-12-13 13:11:06,541 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 13:11:06,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:11:07,647 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:11:07,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898311952] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 13:11:07,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:11:07,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19, 16] total 40 [2022-12-13 13:11:07,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494018981] [2022-12-13 13:11:07,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:11:07,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:11:07,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:11:07,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:11:07,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1465, Unknown=0, NotChecked=0, Total=1640 [2022-12-13 13:11:09,196 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 13:11:09,196 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 1109 transitions, 25277 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:09,196 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:11:09,196 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 13:11:09,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:11:15,559 INFO L130 PetriNetUnfolder]: 2437/5546 cut-off events. [2022-12-13 13:11:15,559 INFO L131 PetriNetUnfolder]: For 169812/169954 co-relation queries the response was YES. [2022-12-13 13:11:15,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53798 conditions, 5546 events. 2437/5546 cut-off events. For 169812/169954 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 45882 event pairs, 368 based on Foata normal form. 23/5540 useless extension candidates. Maximal degree in co-relation 53624. Up to 2653 conditions per place. [2022-12-13 13:11:15,613 INFO L137 encePairwiseOnDemand]: 164/182 looper letters, 931 selfloop transitions, 189 changer transitions 40/1254 dead transitions. [2022-12-13 13:11:15,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 1254 transitions, 29575 flow [2022-12-13 13:11:15,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 13:11:15,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 13:11:15,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1207 transitions. [2022-12-13 13:11:15,615 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4421245421245421 [2022-12-13 13:11:15,615 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1207 transitions. [2022-12-13 13:11:15,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1207 transitions. [2022-12-13 13:11:15,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:11:15,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1207 transitions. [2022-12-13 13:11:15,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 80.46666666666667) internal successors, (1207), 15 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:15,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 182.0) internal successors, (2912), 16 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:15,618 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 182.0) internal successors, (2912), 16 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:15,618 INFO L175 Difference]: Start difference. First operand has 327 places, 1109 transitions, 25277 flow. Second operand 15 states and 1207 transitions. [2022-12-13 13:11:15,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 1254 transitions, 29575 flow [2022-12-13 13:11:16,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 1254 transitions, 29437 flow, removed 53 selfloop flow, removed 1 redundant places. [2022-12-13 13:11:16,679 INFO L231 Difference]: Finished difference. Result has 349 places, 1156 transitions, 26464 flow [2022-12-13 13:11:16,680 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=25152, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=26464, PETRI_PLACES=349, PETRI_TRANSITIONS=1156} [2022-12-13 13:11:16,680 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 310 predicate places. [2022-12-13 13:11:16,680 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 1156 transitions, 26464 flow [2022-12-13 13:11:16,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:16,680 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:11:16,680 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:16,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 13:11:16,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:11:16,882 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:11:16,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:16,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1977883785, now seen corresponding path program 8 times [2022-12-13 13:11:16,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:11:16,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436411933] [2022-12-13 13:11:16,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:16,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:11:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:11:18,021 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:11:18,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:11:18,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436411933] [2022-12-13 13:11:18,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436411933] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:11:18,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:11:18,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 13:11:18,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279425239] [2022-12-13 13:11:18,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:11:18,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 13:11:18,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:11:18,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 13:11:18,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:11:18,399 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 182 [2022-12-13 13:11:18,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 1156 transitions, 26464 flow. Second operand has 11 states, 11 states have (on average 74.54545454545455) internal successors, (820), 11 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:18,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:11:18,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 182 [2022-12-13 13:11:18,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:11:22,117 INFO L130 PetriNetUnfolder]: 2468/5616 cut-off events. [2022-12-13 13:11:22,117 INFO L131 PetriNetUnfolder]: For 188637/188922 co-relation queries the response was YES. [2022-12-13 13:11:22,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56779 conditions, 5616 events. 2468/5616 cut-off events. For 188637/188922 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 46985 event pairs, 208 based on Foata normal form. 63/5651 useless extension candidates. Maximal degree in co-relation 56597. Up to 3132 conditions per place. [2022-12-13 13:11:22,173 INFO L137 encePairwiseOnDemand]: 166/182 looper letters, 697 selfloop transitions, 490 changer transitions 29/1349 dead transitions. [2022-12-13 13:11:22,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1349 transitions, 32937 flow [2022-12-13 13:11:22,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 13:11:22,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 13:11:22,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1238 transitions. [2022-12-13 13:11:22,174 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4534798534798535 [2022-12-13 13:11:22,174 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1238 transitions. [2022-12-13 13:11:22,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1238 transitions. [2022-12-13 13:11:22,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:11:22,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1238 transitions. [2022-12-13 13:11:22,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 82.53333333333333) internal successors, (1238), 15 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:22,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 182.0) internal successors, (2912), 16 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:22,177 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 182.0) internal successors, (2912), 16 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:22,177 INFO L175 Difference]: Start difference. First operand has 349 places, 1156 transitions, 26464 flow. Second operand 15 states and 1238 transitions. [2022-12-13 13:11:22,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 1349 transitions, 32937 flow [2022-12-13 13:11:23,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 1349 transitions, 32722 flow, removed 94 selfloop flow, removed 3 redundant places. [2022-12-13 13:11:23,474 INFO L231 Difference]: Finished difference. Result has 365 places, 1220 transitions, 30188 flow [2022-12-13 13:11:23,475 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=26285, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=430, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=694, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=30188, PETRI_PLACES=365, PETRI_TRANSITIONS=1220} [2022-12-13 13:11:23,475 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 326 predicate places. [2022-12-13 13:11:23,475 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 1220 transitions, 30188 flow [2022-12-13 13:11:23,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.54545454545455) internal successors, (820), 11 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:23,475 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:11:23,475 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:23,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 13:11:23,476 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:11:23,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:23,476 INFO L85 PathProgramCache]: Analyzing trace with hash -695658881, now seen corresponding path program 3 times [2022-12-13 13:11:23,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:11:23,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591721490] [2022-12-13 13:11:23,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:23,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:11:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:11:23,937 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:11:23,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:11:23,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591721490] [2022-12-13 13:11:23,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591721490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:11:23,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:11:23,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:11:23,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112834655] [2022-12-13 13:11:23,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:11:23,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:11:23,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:11:23,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:11:23,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:11:24,214 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 13:11:24,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 1220 transitions, 30188 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:24,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:11:24,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 13:11:24,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:11:27,931 INFO L130 PetriNetUnfolder]: 2551/5755 cut-off events. [2022-12-13 13:11:27,931 INFO L131 PetriNetUnfolder]: For 219854/220050 co-relation queries the response was YES. [2022-12-13 13:11:27,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60745 conditions, 5755 events. 2551/5755 cut-off events. For 219854/220050 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 47607 event pairs, 440 based on Foata normal form. 20/5758 useless extension candidates. Maximal degree in co-relation 60555. Up to 4048 conditions per place. [2022-12-13 13:11:27,989 INFO L137 encePairwiseOnDemand]: 164/182 looper letters, 845 selfloop transitions, 421 changer transitions 25/1297 dead transitions. [2022-12-13 13:11:27,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 1297 transitions, 33887 flow [2022-12-13 13:11:27,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:11:27,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:11:27,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 738 transitions. [2022-12-13 13:11:27,990 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45054945054945056 [2022-12-13 13:11:27,990 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 738 transitions. [2022-12-13 13:11:27,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 738 transitions. [2022-12-13 13:11:27,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:11:27,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 738 transitions. [2022-12-13 13:11:27,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.0) internal successors, (738), 9 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:27,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:27,992 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:27,992 INFO L175 Difference]: Start difference. First operand has 365 places, 1220 transitions, 30188 flow. Second operand 9 states and 738 transitions. [2022-12-13 13:11:27,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 1297 transitions, 33887 flow [2022-12-13 13:11:29,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 1297 transitions, 33731 flow, removed 41 selfloop flow, removed 2 redundant places. [2022-12-13 13:11:29,489 INFO L231 Difference]: Finished difference. Result has 375 places, 1234 transitions, 31262 flow [2022-12-13 13:11:29,489 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=30032, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=408, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=803, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=31262, PETRI_PLACES=375, PETRI_TRANSITIONS=1234} [2022-12-13 13:11:29,489 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 336 predicate places. [2022-12-13 13:11:29,489 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 1234 transitions, 31262 flow [2022-12-13 13:11:29,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:29,490 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:11:29,490 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:29,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 13:11:29,490 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:11:29,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:29,490 INFO L85 PathProgramCache]: Analyzing trace with hash -2013742621, now seen corresponding path program 9 times [2022-12-13 13:11:29,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:11:29,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108753385] [2022-12-13 13:11:29,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:29,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:11:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:11:30,300 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:11:30,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:11:30,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108753385] [2022-12-13 13:11:30,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108753385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:11:30,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:11:30,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:11:30,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912462930] [2022-12-13 13:11:30,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:11:30,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:11:30,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:11:30,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:11:30,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:11:30,706 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2022-12-13 13:11:30,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 1234 transitions, 31262 flow. Second operand has 10 states, 10 states have (on average 75.7) internal successors, (757), 10 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:30,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:11:30,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2022-12-13 13:11:30,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:11:35,125 INFO L130 PetriNetUnfolder]: 2498/5693 cut-off events. [2022-12-13 13:11:35,126 INFO L131 PetriNetUnfolder]: For 239886/240184 co-relation queries the response was YES. [2022-12-13 13:11:35,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61739 conditions, 5693 events. 2498/5693 cut-off events. For 239886/240184 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 47805 event pairs, 246 based on Foata normal form. 73/5736 useless extension candidates. Maximal degree in co-relation 61545. Up to 2755 conditions per place. [2022-12-13 13:11:35,199 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 674 selfloop transitions, 572 changer transitions 20/1407 dead transitions. [2022-12-13 13:11:35,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 1407 transitions, 37699 flow [2022-12-13 13:11:35,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 13:11:35,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 13:11:35,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1099 transitions. [2022-12-13 13:11:35,201 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46449704142011833 [2022-12-13 13:11:35,201 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1099 transitions. [2022-12-13 13:11:35,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1099 transitions. [2022-12-13 13:11:35,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:11:35,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1099 transitions. [2022-12-13 13:11:35,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 84.53846153846153) internal successors, (1099), 13 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:35,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:35,206 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:35,206 INFO L175 Difference]: Start difference. First operand has 375 places, 1234 transitions, 31262 flow. Second operand 13 states and 1099 transitions. [2022-12-13 13:11:35,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 1407 transitions, 37699 flow [2022-12-13 13:11:37,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 1407 transitions, 37285 flow, removed 19 selfloop flow, removed 3 redundant places. [2022-12-13 13:11:37,111 INFO L231 Difference]: Finished difference. Result has 393 places, 1293 transitions, 35101 flow [2022-12-13 13:11:37,112 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=30879, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=516, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=694, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=35101, PETRI_PLACES=393, PETRI_TRANSITIONS=1293} [2022-12-13 13:11:37,112 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 354 predicate places. [2022-12-13 13:11:37,112 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 1293 transitions, 35101 flow [2022-12-13 13:11:37,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.7) internal successors, (757), 10 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:11:37,113 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:11:37,113 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:37,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 13:11:37,113 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:11:37,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:37,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1179440116, now seen corresponding path program 4 times [2022-12-13 13:11:37,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:11:37,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902064266] [2022-12-13 13:11:37,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:37,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:11:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:11:40,536 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:11:40,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:11:40,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902064266] [2022-12-13 13:11:40,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902064266] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:11:40,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462942114] [2022-12-13 13:11:40,537 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 13:11:40,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:11:40,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:11:40,538 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:11:40,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 13:11:40,660 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 13:11:40,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:11:40,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-13 13:11:40,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:11:40,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 13:11:40,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 13:11:40,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 13:11:40,999 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:11:40,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:11:41,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-13 13:11:41,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-13 13:11:41,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2022-12-13 13:11:41,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 59 [2022-12-13 13:11:41,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 59 [2022-12-13 13:11:41,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-12-13 13:11:41,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:11:41,677 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:11:41,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 123 [2022-12-13 13:11:55,849 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 13:11:55,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:12:00,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2022-12-13 13:12:00,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-12-13 13:12:00,572 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:12:00,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462942114] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 13:12:00,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:12:00,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [20, 19] total 49 [2022-12-13 13:12:00,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020844754] [2022-12-13 13:12:00,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:12:00,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 13:12:00,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:12:00,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 13:12:00,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=2159, Unknown=6, NotChecked=0, Total=2450 [2022-12-13 13:12:06,529 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 182 [2022-12-13 13:12:06,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 1293 transitions, 35101 flow. Second operand has 13 states, 13 states have (on average 72.46153846153847) internal successors, (942), 13 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:12:06,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:12:06,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 182 [2022-12-13 13:12:06,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:12:22,678 INFO L130 PetriNetUnfolder]: 2885/6669 cut-off events. [2022-12-13 13:12:22,679 INFO L131 PetriNetUnfolder]: For 307276/307579 co-relation queries the response was YES. [2022-12-13 13:12:22,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73807 conditions, 6669 events. 2885/6669 cut-off events. For 307276/307579 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 58219 event pairs, 429 based on Foata normal form. 28/6668 useless extension candidates. Maximal degree in co-relation 73604. Up to 2845 conditions per place. [2022-12-13 13:12:22,752 INFO L137 encePairwiseOnDemand]: 163/182 looper letters, 1307 selfloop transitions, 392 changer transitions 24/1746 dead transitions. [2022-12-13 13:12:22,752 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 1746 transitions, 47199 flow [2022-12-13 13:12:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:12:22,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 13:12:22,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 951 transitions. [2022-12-13 13:12:22,754 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47502497502497504 [2022-12-13 13:12:22,754 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 951 transitions. [2022-12-13 13:12:22,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 951 transitions. [2022-12-13 13:12:22,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:12:22,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 951 transitions. [2022-12-13 13:12:22,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.45454545454545) internal successors, (951), 11 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:12:22,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:12:22,756 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:12:22,756 INFO L175 Difference]: Start difference. First operand has 393 places, 1293 transitions, 35101 flow. Second operand 11 states and 951 transitions. [2022-12-13 13:12:22,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 1746 transitions, 47199 flow [2022-12-13 13:12:25,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 1746 transitions, 46923 flow, removed 112 selfloop flow, removed 2 redundant places. [2022-12-13 13:12:25,186 INFO L231 Difference]: Finished difference. Result has 407 places, 1403 transitions, 38421 flow [2022-12-13 13:12:25,187 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=34884, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=286, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=38421, PETRI_PLACES=407, PETRI_TRANSITIONS=1403} [2022-12-13 13:12:25,188 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 368 predicate places. [2022-12-13 13:12:25,188 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 1403 transitions, 38421 flow [2022-12-13 13:12:25,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 72.46153846153847) internal successors, (942), 13 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:12:25,188 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:12:25,188 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:12:25,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 13:12:25,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:12:25,390 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:12:25,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:12:25,391 INFO L85 PathProgramCache]: Analyzing trace with hash 910411362, now seen corresponding path program 5 times [2022-12-13 13:12:25,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:12:25,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821005177] [2022-12-13 13:12:25,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:12:25,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:12:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:12:29,290 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:12:29,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:12:29,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821005177] [2022-12-13 13:12:29,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821005177] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:12:29,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819034688] [2022-12-13 13:12:29,291 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 13:12:29,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:12:29,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:12:29,292 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:12:29,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 13:12:29,486 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-12-13 13:12:29,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:12:29,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-13 13:12:29,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:12:29,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 13:12:29,746 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:12:29,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:12:29,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 13:12:29,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-13 13:12:29,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 13:12:29,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-13 13:12:30,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 47 [2022-12-13 13:12:30,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2022-12-13 13:12:30,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2022-12-13 13:12:30,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 89 [2022-12-13 13:12:30,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:12:30,642 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:12:30,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 123 [2022-12-13 13:12:38,757 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 13:12:38,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:12:50,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2022-12-13 13:12:50,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-12-13 13:12:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:12:50,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819034688] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 13:12:50,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:12:50,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [20, 19] total 49 [2022-12-13 13:12:50,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507828324] [2022-12-13 13:12:50,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:12:50,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 13:12:50,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:12:50,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 13:12:50,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=2115, Unknown=3, NotChecked=0, Total=2450 [2022-12-13 13:13:02,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 182 [2022-12-13 13:13:02,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 1403 transitions, 38421 flow. Second operand has 13 states, 13 states have (on average 72.46153846153847) internal successors, (942), 13 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:02,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:13:02,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 182 [2022-12-13 13:13:02,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:13:17,435 INFO L130 PetriNetUnfolder]: 2927/6760 cut-off events. [2022-12-13 13:13:17,435 INFO L131 PetriNetUnfolder]: For 327239/327553 co-relation queries the response was YES. [2022-12-13 13:13:17,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76751 conditions, 6760 events. 2927/6760 cut-off events. For 327239/327553 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 58988 event pairs, 461 based on Foata normal form. 40/6779 useless extension candidates. Maximal degree in co-relation 76543. Up to 2761 conditions per place. [2022-12-13 13:13:17,521 INFO L137 encePairwiseOnDemand]: 164/182 looper letters, 1271 selfloop transitions, 314 changer transitions 17/1625 dead transitions. [2022-12-13 13:13:17,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 1625 transitions, 46129 flow [2022-12-13 13:13:17,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:13:17,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 13:13:17,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 936 transitions. [2022-12-13 13:13:17,523 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4675324675324675 [2022-12-13 13:13:17,523 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 936 transitions. [2022-12-13 13:13:17,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 936 transitions. [2022-12-13 13:13:17,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:13:17,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 936 transitions. [2022-12-13 13:13:17,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 85.0909090909091) internal successors, (936), 11 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:17,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:17,527 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:17,527 INFO L175 Difference]: Start difference. First operand has 407 places, 1403 transitions, 38421 flow. Second operand 11 states and 936 transitions. [2022-12-13 13:13:17,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 1625 transitions, 46129 flow [2022-12-13 13:13:19,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1625 transitions, 46003 flow, removed 63 selfloop flow, removed 0 redundant places. [2022-12-13 13:13:19,958 INFO L231 Difference]: Finished difference. Result has 421 places, 1444 transitions, 40101 flow [2022-12-13 13:13:19,958 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=38307, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=40101, PETRI_PLACES=421, PETRI_TRANSITIONS=1444} [2022-12-13 13:13:19,959 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 382 predicate places. [2022-12-13 13:13:19,959 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 1444 transitions, 40101 flow [2022-12-13 13:13:19,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 72.46153846153847) internal successors, (942), 13 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:19,959 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:13:19,959 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:13:19,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 13:13:20,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-13 13:13:20,160 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:13:20,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:13:20,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2094861741, now seen corresponding path program 4 times [2022-12-13 13:13:20,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:13:20,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558825582] [2022-12-13 13:13:20,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:13:20,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:13:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:13:21,930 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:13:21,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:13:21,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558825582] [2022-12-13 13:13:21,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558825582] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:13:21,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109730101] [2022-12-13 13:13:21,930 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 13:13:21,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:13:21,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:13:21,931 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:13:21,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 13:13:22,045 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 13:13:22,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:13:22,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-13 13:13:22,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:13:22,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 13:13:22,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 13:13:22,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 13:13:22,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 13:13:22,354 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:13:22,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:13:22,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 13:13:22,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:13:22,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:13:22,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:13:22,544 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:13:22,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 67 [2022-12-13 13:13:28,685 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 13:13:28,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:13:31,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2022-12-13 13:13:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:13:31,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109730101] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 13:13:31,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:13:31,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19, 16] total 41 [2022-12-13 13:13:31,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898851277] [2022-12-13 13:13:31,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:13:31,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:13:31,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:13:31,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:13:31,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1556, Unknown=3, NotChecked=0, Total=1722 [2022-12-13 13:13:34,038 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 13:13:34,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 1444 transitions, 40101 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:34,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:13:34,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 13:13:34,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:13:45,102 INFO L130 PetriNetUnfolder]: 2970/6788 cut-off events. [2022-12-13 13:13:45,102 INFO L131 PetriNetUnfolder]: For 344537/344878 co-relation queries the response was YES. [2022-12-13 13:13:45,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78934 conditions, 6788 events. 2970/6788 cut-off events. For 344537/344878 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 58610 event pairs, 528 based on Foata normal form. 50/6817 useless extension candidates. Maximal degree in co-relation 78721. Up to 4678 conditions per place. [2022-12-13 13:13:45,192 INFO L137 encePairwiseOnDemand]: 164/182 looper letters, 996 selfloop transitions, 498 changer transitions 29/1529 dead transitions. [2022-12-13 13:13:45,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 1529 transitions, 44621 flow [2022-12-13 13:13:45,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:13:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:13:45,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 746 transitions. [2022-12-13 13:13:45,194 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4554334554334554 [2022-12-13 13:13:45,194 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 746 transitions. [2022-12-13 13:13:45,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 746 transitions. [2022-12-13 13:13:45,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:13:45,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 746 transitions. [2022-12-13 13:13:45,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.88888888888889) internal successors, (746), 9 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:45,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:45,281 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:45,281 INFO L175 Difference]: Start difference. First operand has 421 places, 1444 transitions, 40101 flow. Second operand 9 states and 746 transitions. [2022-12-13 13:13:45,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 1529 transitions, 44621 flow [2022-12-13 13:13:47,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 1529 transitions, 44397 flow, removed 29 selfloop flow, removed 4 redundant places. [2022-12-13 13:13:47,893 INFO L231 Difference]: Finished difference. Result has 428 places, 1451 transitions, 41153 flow [2022-12-13 13:13:47,894 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=39882, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=492, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=947, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=41153, PETRI_PLACES=428, PETRI_TRANSITIONS=1451} [2022-12-13 13:13:47,894 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 389 predicate places. [2022-12-13 13:13:47,894 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 1451 transitions, 41153 flow [2022-12-13 13:13:47,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:47,895 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:13:47,895 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:13:47,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 13:13:48,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:13:48,095 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:13:48,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:13:48,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1927157631, now seen corresponding path program 5 times [2022-12-13 13:13:48,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:13:48,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349766820] [2022-12-13 13:13:48,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:13:48,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:13:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:13:48,402 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:13:48,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:13:48,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349766820] [2022-12-13 13:13:48,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349766820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:13:48,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:13:48,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:13:48,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665825760] [2022-12-13 13:13:48,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:13:48,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:13:48,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:13:48,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:13:48,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:13:48,595 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 13:13:48,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 1451 transitions, 41153 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:48,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:13:48,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 13:13:48,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:13:53,480 INFO L130 PetriNetUnfolder]: 2969/6786 cut-off events. [2022-12-13 13:13:53,480 INFO L131 PetriNetUnfolder]: For 359292/359625 co-relation queries the response was YES. [2022-12-13 13:13:53,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80210 conditions, 6786 events. 2969/6786 cut-off events. For 359292/359625 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 58604 event pairs, 538 based on Foata normal form. 49/6814 useless extension candidates. Maximal degree in co-relation 79994. Up to 4680 conditions per place. [2022-12-13 13:13:53,558 INFO L137 encePairwiseOnDemand]: 164/182 looper letters, 994 selfloop transitions, 507 changer transitions 24/1531 dead transitions. [2022-12-13 13:13:53,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 1531 transitions, 45589 flow [2022-12-13 13:13:53,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:13:53,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 13:13:53,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 675 transitions. [2022-12-13 13:13:53,560 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4635989010989011 [2022-12-13 13:13:53,560 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 675 transitions. [2022-12-13 13:13:53,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 675 transitions. [2022-12-13 13:13:53,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:13:53,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 675 transitions. [2022-12-13 13:13:53,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 84.375) internal successors, (675), 8 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:53,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 182.0) internal successors, (1638), 9 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:53,561 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 182.0) internal successors, (1638), 9 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:53,561 INFO L175 Difference]: Start difference. First operand has 428 places, 1451 transitions, 41153 flow. Second operand 8 states and 675 transitions. [2022-12-13 13:13:53,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 1531 transitions, 45589 flow [2022-12-13 13:13:56,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 1531 transitions, 45114 flow, removed 10 selfloop flow, removed 4 redundant places. [2022-12-13 13:13:56,197 INFO L231 Difference]: Finished difference. Result has 433 places, 1454 transitions, 41880 flow [2022-12-13 13:13:56,198 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=40678, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=504, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=41880, PETRI_PLACES=433, PETRI_TRANSITIONS=1454} [2022-12-13 13:13:56,198 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 394 predicate places. [2022-12-13 13:13:56,198 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 1454 transitions, 41880 flow [2022-12-13 13:13:56,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:56,198 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:13:56,198 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:13:56,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 13:13:56,199 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:13:56,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:13:56,199 INFO L85 PathProgramCache]: Analyzing trace with hash 653457786, now seen corresponding path program 1 times [2022-12-13 13:13:56,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:13:56,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367801887] [2022-12-13 13:13:56,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:13:56,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:13:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:13:57,195 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:13:57,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:13:57,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367801887] [2022-12-13 13:13:57,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367801887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:13:57,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:13:57,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:13:57,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300462137] [2022-12-13 13:13:57,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:13:57,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:13:57,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:13:57,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:13:57,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:13:57,605 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2022-12-13 13:13:57,606 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 1454 transitions, 41880 flow. Second operand has 9 states, 9 states have (on average 77.88888888888889) internal successors, (701), 9 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:13:57,606 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:13:57,606 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2022-12-13 13:13:57,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:14:01,905 INFO L130 PetriNetUnfolder]: 2734/6352 cut-off events. [2022-12-13 13:14:01,905 INFO L131 PetriNetUnfolder]: For 372437/372886 co-relation queries the response was YES. [2022-12-13 13:14:01,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76149 conditions, 6352 events. 2734/6352 cut-off events. For 372437/372886 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 55150 event pairs, 273 based on Foata normal form. 154/6460 useless extension candidates. Maximal degree in co-relation 75931. Up to 1784 conditions per place. [2022-12-13 13:14:01,990 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 975 selfloop transitions, 376 changer transitions 53/1610 dead transitions. [2022-12-13 13:14:01,990 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 1610 transitions, 47740 flow [2022-12-13 13:14:01,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:14:01,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 13:14:01,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 878 transitions. [2022-12-13 13:14:01,992 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4824175824175824 [2022-12-13 13:14:01,992 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 878 transitions. [2022-12-13 13:14:01,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 878 transitions. [2022-12-13 13:14:01,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:14:01,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 878 transitions. [2022-12-13 13:14:01,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.8) internal successors, (878), 10 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:01,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:01,994 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:01,994 INFO L175 Difference]: Start difference. First operand has 433 places, 1454 transitions, 41880 flow. Second operand 10 states and 878 transitions. [2022-12-13 13:14:01,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 1610 transitions, 47740 flow [2022-12-13 13:14:04,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 1610 transitions, 46744 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-12-13 13:14:04,820 INFO L231 Difference]: Finished difference. Result has 438 places, 1449 transitions, 41747 flow [2022-12-13 13:14:04,821 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=40939, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=376, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1077, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=41747, PETRI_PLACES=438, PETRI_TRANSITIONS=1449} [2022-12-13 13:14:04,821 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 399 predicate places. [2022-12-13 13:14:04,821 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 1449 transitions, 41747 flow [2022-12-13 13:14:04,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.88888888888889) internal successors, (701), 9 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:04,821 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:14:04,821 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:14:04,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 13:14:04,822 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:14:04,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:14:04,822 INFO L85 PathProgramCache]: Analyzing trace with hash -484062352, now seen corresponding path program 6 times [2022-12-13 13:14:04,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:14:04,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070163832] [2022-12-13 13:14:04,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:14:04,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:14:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:14:05,610 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:14:05,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:14:05,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070163832] [2022-12-13 13:14:05,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070163832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:14:05,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:14:05,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:14:05,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033091202] [2022-12-13 13:14:05,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:14:05,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:14:05,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:14:05,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:14:05,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:14:06,088 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2022-12-13 13:14:06,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1449 transitions, 41747 flow. Second operand has 10 states, 10 states have (on average 75.7) internal successors, (757), 10 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:06,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:14:06,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2022-12-13 13:14:06,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:14:10,682 INFO L130 PetriNetUnfolder]: 2872/6576 cut-off events. [2022-12-13 13:14:10,682 INFO L131 PetriNetUnfolder]: For 367766/368118 co-relation queries the response was YES. [2022-12-13 13:14:10,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78315 conditions, 6576 events. 2872/6576 cut-off events. For 367766/368118 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 56810 event pairs, 435 based on Foata normal form. 75/6626 useless extension candidates. Maximal degree in co-relation 78096. Up to 2424 conditions per place. [2022-12-13 13:14:10,769 INFO L137 encePairwiseOnDemand]: 165/182 looper letters, 1230 selfloop transitions, 309 changer transitions 14/1653 dead transitions. [2022-12-13 13:14:10,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 1653 transitions, 49230 flow [2022-12-13 13:14:10,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:14:10,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 13:14:10,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 874 transitions. [2022-12-13 13:14:10,771 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48021978021978023 [2022-12-13 13:14:10,771 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 874 transitions. [2022-12-13 13:14:10,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 874 transitions. [2022-12-13 13:14:10,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:14:10,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 874 transitions. [2022-12-13 13:14:10,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.4) internal successors, (874), 10 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:10,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:10,773 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:10,773 INFO L175 Difference]: Start difference. First operand has 438 places, 1449 transitions, 41747 flow. Second operand 10 states and 874 transitions. [2022-12-13 13:14:10,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 1653 transitions, 49230 flow [2022-12-13 13:14:13,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1653 transitions, 48404 flow, removed 47 selfloop flow, removed 15 redundant places. [2022-12-13 13:14:13,575 INFO L231 Difference]: Finished difference. Result has 436 places, 1493 transitions, 42959 flow [2022-12-13 13:14:13,575 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=40952, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=42959, PETRI_PLACES=436, PETRI_TRANSITIONS=1493} [2022-12-13 13:14:13,576 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 397 predicate places. [2022-12-13 13:14:13,576 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 1493 transitions, 42959 flow [2022-12-13 13:14:13,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.7) internal successors, (757), 10 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:13,576 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:14:13,576 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:14:13,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 13:14:13,576 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:14:13,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:14:13,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2106623116, now seen corresponding path program 7 times [2022-12-13 13:14:13,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:14:13,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248184576] [2022-12-13 13:14:13,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:14:13,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:14:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:14:15,555 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:14:15,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:14:15,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248184576] [2022-12-13 13:14:15,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248184576] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:14:15,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853547275] [2022-12-13 13:14:15,556 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 13:14:15,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:14:15,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:14:15,557 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:14:15,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 13:14:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:14:15,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-13 13:14:15,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:14:15,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 13:14:15,747 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:14:15,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:14:15,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 13:14:15,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 13:14:15,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-13 13:14:16,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-13 13:14:16,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:14:16,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:14:16,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:14:16,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:14:16,082 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:14:16,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2022-12-13 13:14:16,090 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 13:14:16,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:14:17,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2022-12-13 13:14:17,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-12-13 13:14:17,094 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:14:17,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853547275] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 13:14:17,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:14:17,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19, 10] total 31 [2022-12-13 13:14:17,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045863173] [2022-12-13 13:14:17,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:14:17,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:14:17,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:14:17,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:14:17,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=826, Unknown=0, NotChecked=0, Total=992 [2022-12-13 13:14:19,245 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2022-12-13 13:14:19,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 1493 transitions, 42959 flow. Second operand has 9 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:19,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:14:19,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2022-12-13 13:14:19,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:14:24,868 INFO L130 PetriNetUnfolder]: 2765/6416 cut-off events. [2022-12-13 13:14:24,869 INFO L131 PetriNetUnfolder]: For 365050/365453 co-relation queries the response was YES. [2022-12-13 13:14:24,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76414 conditions, 6416 events. 2765/6416 cut-off events. For 365050/365453 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 56030 event pairs, 377 based on Foata normal form. 81/6441 useless extension candidates. Maximal degree in co-relation 76201. Up to 2610 conditions per place. [2022-12-13 13:14:24,952 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 1020 selfloop transitions, 265 changer transitions 17/1589 dead transitions. [2022-12-13 13:14:24,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 1589 transitions, 47411 flow [2022-12-13 13:14:24,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:14:24,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:14:24,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 793 transitions. [2022-12-13 13:14:24,954 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48412698412698413 [2022-12-13 13:14:24,954 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 793 transitions. [2022-12-13 13:14:24,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 793 transitions. [2022-12-13 13:14:24,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:14:24,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 793 transitions. [2022-12-13 13:14:24,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.11111111111111) internal successors, (793), 9 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:24,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:24,956 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:24,956 INFO L175 Difference]: Start difference. First operand has 436 places, 1493 transitions, 42959 flow. Second operand 9 states and 793 transitions. [2022-12-13 13:14:24,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 1589 transitions, 47411 flow [2022-12-13 13:14:27,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 1589 transitions, 46903 flow, removed 30 selfloop flow, removed 6 redundant places. [2022-12-13 13:14:27,711 INFO L231 Difference]: Finished difference. Result has 442 places, 1516 transitions, 43725 flow [2022-12-13 13:14:27,712 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=42451, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=244, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=43725, PETRI_PLACES=442, PETRI_TRANSITIONS=1516} [2022-12-13 13:14:27,712 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 403 predicate places. [2022-12-13 13:14:27,712 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 1516 transitions, 43725 flow [2022-12-13 13:14:27,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:27,713 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:14:27,713 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:14:27,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 13:14:27,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:14:27,915 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:14:27,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:14:27,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1706617981, now seen corresponding path program 2 times [2022-12-13 13:14:27,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:14:27,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257462726] [2022-12-13 13:14:27,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:14:27,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:14:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:14:31,189 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:14:31,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:14:31,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257462726] [2022-12-13 13:14:31,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257462726] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:14:31,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550952501] [2022-12-13 13:14:31,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:14:31,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:14:31,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:14:31,190 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:14:31,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 13:14:31,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 13:14:31,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:14:31,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 13:14:31,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:14:31,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 13:14:31,377 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:14:31,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:14:31,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 13:14:31,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 13:14:31,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-13 13:14:31,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-13 13:14:31,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:14:31,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:14:31,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:14:31,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:14:31,808 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:14:31,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2022-12-13 13:14:31,817 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:14:31,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:14:31,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550952501] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:14:31,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:14:31,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 26 [2022-12-13 13:14:31,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784044421] [2022-12-13 13:14:31,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:14:31,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:14:31,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:14:31,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:14:31,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2022-12-13 13:14:32,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 182 [2022-12-13 13:14:32,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 1516 transitions, 43725 flow. Second operand has 9 states, 9 states have (on average 71.22222222222223) internal successors, (641), 9 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:32,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:14:32,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 182 [2022-12-13 13:14:32,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:14:36,939 INFO L130 PetriNetUnfolder]: 2826/6455 cut-off events. [2022-12-13 13:14:36,939 INFO L131 PetriNetUnfolder]: For 379750/379949 co-relation queries the response was YES. [2022-12-13 13:14:36,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78905 conditions, 6455 events. 2826/6455 cut-off events. For 379750/379949 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 55284 event pairs, 415 based on Foata normal form. 101/6533 useless extension candidates. Maximal degree in co-relation 78688. Up to 2110 conditions per place. [2022-12-13 13:14:37,024 INFO L137 encePairwiseOnDemand]: 164/182 looper letters, 1281 selfloop transitions, 212 changer transitions 134/1752 dead transitions. [2022-12-13 13:14:37,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1752 transitions, 52488 flow [2022-12-13 13:14:37,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:14:37,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 13:14:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 838 transitions. [2022-12-13 13:14:37,026 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4604395604395604 [2022-12-13 13:14:37,026 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 838 transitions. [2022-12-13 13:14:37,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 838 transitions. [2022-12-13 13:14:37,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:14:37,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 838 transitions. [2022-12-13 13:14:37,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 83.8) internal successors, (838), 10 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:37,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:37,028 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:37,028 INFO L175 Difference]: Start difference. First operand has 442 places, 1516 transitions, 43725 flow. Second operand 10 states and 838 transitions. [2022-12-13 13:14:37,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1752 transitions, 52488 flow [2022-12-13 13:14:39,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 1752 transitions, 52309 flow, removed 51 selfloop flow, removed 2 redundant places. [2022-12-13 13:14:39,842 INFO L231 Difference]: Finished difference. Result has 455 places, 1515 transitions, 44063 flow [2022-12-13 13:14:39,843 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=43554, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=44063, PETRI_PLACES=455, PETRI_TRANSITIONS=1515} [2022-12-13 13:14:39,843 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 416 predicate places. [2022-12-13 13:14:39,843 INFO L495 AbstractCegarLoop]: Abstraction has has 455 places, 1515 transitions, 44063 flow [2022-12-13 13:14:39,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 71.22222222222223) internal successors, (641), 9 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:39,843 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:14:39,843 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:14:39,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 13:14:40,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-12-13 13:14:40,045 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:14:40,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:14:40,046 INFO L85 PathProgramCache]: Analyzing trace with hash -713563009, now seen corresponding path program 6 times [2022-12-13 13:14:40,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:14:40,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065973796] [2022-12-13 13:14:40,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:14:40,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:14:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:14:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:14:47,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:14:47,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065973796] [2022-12-13 13:14:47,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065973796] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:14:47,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268110524] [2022-12-13 13:14:47,727 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 13:14:47,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:14:47,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:14:47,728 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:14:47,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 13:14:47,860 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-12-13 13:14:47,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:14:47,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 13:14:47,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:14:47,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 13:14:47,906 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:14:47,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:14:47,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 13:14:48,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 13:14:48,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 13:14:48,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 13:14:48,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:14:48,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:14:48,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:14:48,219 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:14:48,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 67 [2022-12-13 13:14:50,322 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:14:50,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:14:50,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268110524] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:14:50,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:14:50,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 27 [2022-12-13 13:14:50,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462123542] [2022-12-13 13:14:50,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:14:50,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:14:50,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:14:50,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:14:50,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2022-12-13 13:14:50,850 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 182 [2022-12-13 13:14:50,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 1515 transitions, 44063 flow. Second operand has 9 states, 9 states have (on average 71.22222222222223) internal successors, (641), 9 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:50,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:14:50,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 182 [2022-12-13 13:14:50,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:14:54,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:14:57,592 INFO L130 PetriNetUnfolder]: 2635/6118 cut-off events. [2022-12-13 13:14:57,592 INFO L131 PetriNetUnfolder]: For 369430/369717 co-relation queries the response was YES. [2022-12-13 13:14:57,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76834 conditions, 6118 events. 2635/6118 cut-off events. For 369430/369717 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 52484 event pairs, 437 based on Foata normal form. 133/6236 useless extension candidates. Maximal degree in co-relation 76611. Up to 2194 conditions per place. [2022-12-13 13:14:57,669 INFO L137 encePairwiseOnDemand]: 173/182 looper letters, 1036 selfloop transitions, 117 changer transitions 554/1711 dead transitions. [2022-12-13 13:14:57,669 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 1711 transitions, 51766 flow [2022-12-13 13:14:57,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 13:14:57,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 13:14:57,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1036 transitions. [2022-12-13 13:14:57,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4378698224852071 [2022-12-13 13:14:57,671 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1036 transitions. [2022-12-13 13:14:57,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1036 transitions. [2022-12-13 13:14:57,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:14:57,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1036 transitions. [2022-12-13 13:14:57,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 79.6923076923077) internal successors, (1036), 13 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:57,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:57,673 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:14:57,673 INFO L175 Difference]: Start difference. First operand has 455 places, 1515 transitions, 44063 flow. Second operand 13 states and 1036 transitions. [2022-12-13 13:14:57,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 1711 transitions, 51766 flow [2022-12-13 13:15:00,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 1711 transitions, 51607 flow, removed 36 selfloop flow, removed 2 redundant places. [2022-12-13 13:15:00,561 INFO L231 Difference]: Finished difference. Result has 473 places, 1098 transitions, 31234 flow [2022-12-13 13:15:00,562 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=43958, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=31234, PETRI_PLACES=473, PETRI_TRANSITIONS=1098} [2022-12-13 13:15:00,562 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 434 predicate places. [2022-12-13 13:15:00,562 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 1098 transitions, 31234 flow [2022-12-13 13:15:00,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 71.22222222222223) internal successors, (641), 9 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:00,562 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:00,562 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:00,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 13:15:00,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-12-13 13:15:00,764 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:15:00,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:00,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1837003528, now seen corresponding path program 8 times [2022-12-13 13:15:00,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:00,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331179846] [2022-12-13 13:15:00,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:00,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:01,966 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:15:01,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:01,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331179846] [2022-12-13 13:15:01,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331179846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:01,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:01,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:15:01,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802463471] [2022-12-13 13:15:01,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:01,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:15:01,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:01,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:15:01,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:15:02,483 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2022-12-13 13:15:02,484 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 1098 transitions, 31234 flow. Second operand has 9 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:02,484 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:02,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2022-12-13 13:15:02,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:04,988 INFO L130 PetriNetUnfolder]: 1497/3811 cut-off events. [2022-12-13 13:15:04,988 INFO L131 PetriNetUnfolder]: For 241242/241415 co-relation queries the response was YES. [2022-12-13 13:15:05,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47153 conditions, 3811 events. 1497/3811 cut-off events. For 241242/241415 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 32211 event pairs, 263 based on Foata normal form. 74/3850 useless extension candidates. Maximal degree in co-relation 46961. Up to 1371 conditions per place. [2022-12-13 13:15:05,038 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 676 selfloop transitions, 258 changer transitions 42/1206 dead transitions. [2022-12-13 13:15:05,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 1206 transitions, 35386 flow [2022-12-13 13:15:05,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:15:05,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:15:05,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 783 transitions. [2022-12-13 13:15:05,040 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47802197802197804 [2022-12-13 13:15:05,040 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 783 transitions. [2022-12-13 13:15:05,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 783 transitions. [2022-12-13 13:15:05,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:05,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 783 transitions. [2022-12-13 13:15:05,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:05,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:05,042 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:05,042 INFO L175 Difference]: Start difference. First operand has 473 places, 1098 transitions, 31234 flow. Second operand 9 states and 783 transitions. [2022-12-13 13:15:05,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 1206 transitions, 35386 flow [2022-12-13 13:15:06,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 1206 transitions, 33888 flow, removed 274 selfloop flow, removed 25 redundant places. [2022-12-13 13:15:06,795 INFO L231 Difference]: Finished difference. Result has 441 places, 1097 transitions, 30560 flow [2022-12-13 13:15:06,795 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=29942, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1098, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=840, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=30560, PETRI_PLACES=441, PETRI_TRANSITIONS=1097} [2022-12-13 13:15:06,795 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 402 predicate places. [2022-12-13 13:15:06,795 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 1097 transitions, 30560 flow [2022-12-13 13:15:06,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:06,796 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:06,796 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:06,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 13:15:06,796 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:15:06,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:06,796 INFO L85 PathProgramCache]: Analyzing trace with hash -439865864, now seen corresponding path program 9 times [2022-12-13 13:15:06,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:06,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935968792] [2022-12-13 13:15:06,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:06,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:15:07,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:07,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935968792] [2022-12-13 13:15:07,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935968792] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:07,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:07,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:15:07,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236011111] [2022-12-13 13:15:07,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:07,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:15:07,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:07,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:15:07,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:15:08,138 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2022-12-13 13:15:08,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 1097 transitions, 30560 flow. Second operand has 9 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:08,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:08,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2022-12-13 13:15:08,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:10,599 INFO L130 PetriNetUnfolder]: 1470/3716 cut-off events. [2022-12-13 13:15:10,599 INFO L131 PetriNetUnfolder]: For 214101/214257 co-relation queries the response was YES. [2022-12-13 13:15:10,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44641 conditions, 3716 events. 1470/3716 cut-off events. For 214101/214257 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 31049 event pairs, 258 based on Foata normal form. 76/3756 useless extension candidates. Maximal degree in co-relation 44463. Up to 1371 conditions per place. [2022-12-13 13:15:10,646 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 676 selfloop transitions, 202 changer transitions 79/1176 dead transitions. [2022-12-13 13:15:10,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 1176 transitions, 33703 flow [2022-12-13 13:15:10,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:15:10,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:15:10,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 783 transitions. [2022-12-13 13:15:10,648 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47802197802197804 [2022-12-13 13:15:10,648 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 783 transitions. [2022-12-13 13:15:10,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 783 transitions. [2022-12-13 13:15:10,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:10,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 783 transitions. [2022-12-13 13:15:10,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:10,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:10,650 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:10,650 INFO L175 Difference]: Start difference. First operand has 441 places, 1097 transitions, 30560 flow. Second operand 9 states and 783 transitions. [2022-12-13 13:15:10,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 1176 transitions, 33703 flow [2022-12-13 13:15:12,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 1176 transitions, 33108 flow, removed 17 selfloop flow, removed 9 redundant places. [2022-12-13 13:15:12,204 INFO L231 Difference]: Finished difference. Result has 440 places, 1048 transitions, 29153 flow [2022-12-13 13:15:12,205 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=29971, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1097, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=895, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=29153, PETRI_PLACES=440, PETRI_TRANSITIONS=1048} [2022-12-13 13:15:12,205 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 401 predicate places. [2022-12-13 13:15:12,205 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 1048 transitions, 29153 flow [2022-12-13 13:15:12,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:12,205 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:12,205 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:12,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 13:15:12,206 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:15:12,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:12,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1158828246, now seen corresponding path program 10 times [2022-12-13 13:15:12,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:12,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003359641] [2022-12-13 13:15:12,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:12,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:13,294 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:15:13,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:13,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003359641] [2022-12-13 13:15:13,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003359641] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:13,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:13,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:15:13,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286633162] [2022-12-13 13:15:13,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:13,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:15:13,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:13,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:15:13,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:15:13,732 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2022-12-13 13:15:13,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 1048 transitions, 29153 flow. Second operand has 9 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:13,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:13,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2022-12-13 13:15:13,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:16,049 INFO L130 PetriNetUnfolder]: 1421/3563 cut-off events. [2022-12-13 13:15:16,050 INFO L131 PetriNetUnfolder]: For 204684/204837 co-relation queries the response was YES. [2022-12-13 13:15:16,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42529 conditions, 3563 events. 1421/3563 cut-off events. For 204684/204837 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 29382 event pairs, 244 based on Foata normal form. 74/3602 useless extension candidates. Maximal degree in co-relation 42354. Up to 1371 conditions per place. [2022-12-13 13:15:16,094 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 707 selfloop transitions, 122 changer transitions 102/1146 dead transitions. [2022-12-13 13:15:16,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 1146 transitions, 33133 flow [2022-12-13 13:15:16,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:15:16,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:15:16,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 783 transitions. [2022-12-13 13:15:16,095 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47802197802197804 [2022-12-13 13:15:16,095 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 783 transitions. [2022-12-13 13:15:16,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 783 transitions. [2022-12-13 13:15:16,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:16,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 783 transitions. [2022-12-13 13:15:16,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:16,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:16,097 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:16,097 INFO L175 Difference]: Start difference. First operand has 440 places, 1048 transitions, 29153 flow. Second operand 9 states and 783 transitions. [2022-12-13 13:15:16,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 1146 transitions, 33133 flow [2022-12-13 13:15:17,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 1146 transitions, 32397 flow, removed 83 selfloop flow, removed 13 redundant places. [2022-12-13 13:15:17,574 INFO L231 Difference]: Finished difference. Result has 432 places, 1009 transitions, 27993 flow [2022-12-13 13:15:17,574 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=28498, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1048, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=926, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=27993, PETRI_PLACES=432, PETRI_TRANSITIONS=1009} [2022-12-13 13:15:17,574 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 393 predicate places. [2022-12-13 13:15:17,574 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 1009 transitions, 27993 flow [2022-12-13 13:15:17,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:17,575 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:17,575 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:17,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-13 13:15:17,575 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:15:17,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:17,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1935236799, now seen corresponding path program 3 times [2022-12-13 13:15:17,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:17,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999265591] [2022-12-13 13:15:17,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:17,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:18,108 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:15:18,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:18,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999265591] [2022-12-13 13:15:18,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999265591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:18,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:18,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:15:18,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033613289] [2022-12-13 13:15:18,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:18,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:15:18,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:18,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:15:18,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:15:18,469 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 182 [2022-12-13 13:15:18,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 1009 transitions, 27993 flow. Second operand has 9 states, 9 states have (on average 71.22222222222223) internal successors, (641), 9 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:18,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:18,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 182 [2022-12-13 13:15:18,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:20,864 INFO L130 PetriNetUnfolder]: 1449/3521 cut-off events. [2022-12-13 13:15:20,864 INFO L131 PetriNetUnfolder]: For 196051/196134 co-relation queries the response was YES. [2022-12-13 13:15:20,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41634 conditions, 3521 events. 1449/3521 cut-off events. For 196051/196134 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 28066 event pairs, 266 based on Foata normal form. 12/3517 useless extension candidates. Maximal degree in co-relation 41463. Up to 2372 conditions per place. [2022-12-13 13:15:20,913 INFO L137 encePairwiseOnDemand]: 166/182 looper letters, 747 selfloop transitions, 213 changer transitions 16/1062 dead transitions. [2022-12-13 13:15:20,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 1062 transitions, 30704 flow [2022-12-13 13:15:20,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:15:20,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:15:20,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 733 transitions. [2022-12-13 13:15:20,915 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4474969474969475 [2022-12-13 13:15:20,915 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 733 transitions. [2022-12-13 13:15:20,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 733 transitions. [2022-12-13 13:15:20,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:20,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 733 transitions. [2022-12-13 13:15:20,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 81.44444444444444) internal successors, (733), 9 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:20,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:20,917 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:20,917 INFO L175 Difference]: Start difference. First operand has 432 places, 1009 transitions, 27993 flow. Second operand 9 states and 733 transitions. [2022-12-13 13:15:20,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 1062 transitions, 30704 flow [2022-12-13 13:15:22,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 1062 transitions, 30176 flow, removed 4 selfloop flow, removed 11 redundant places. [2022-12-13 13:15:22,315 INFO L231 Difference]: Finished difference. Result has 430 places, 1020 transitions, 28286 flow [2022-12-13 13:15:22,315 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=27465, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1009, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=203, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=802, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=28286, PETRI_PLACES=430, PETRI_TRANSITIONS=1020} [2022-12-13 13:15:22,315 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 391 predicate places. [2022-12-13 13:15:22,316 INFO L495 AbstractCegarLoop]: Abstraction has has 430 places, 1020 transitions, 28286 flow [2022-12-13 13:15:22,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 71.22222222222223) internal successors, (641), 9 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:22,316 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:22,316 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:22,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-13 13:15:22,316 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:15:22,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:22,316 INFO L85 PathProgramCache]: Analyzing trace with hash 2046073407, now seen corresponding path program 4 times [2022-12-13 13:15:22,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:22,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919591937] [2022-12-13 13:15:22,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:22,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:27,252 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:15:27,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:27,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919591937] [2022-12-13 13:15:27,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919591937] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:15:27,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713953031] [2022-12-13 13:15:27,253 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 13:15:27,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:15:27,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:15:27,254 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:15:27,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 13:15:27,392 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 13:15:27,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:15:27,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 53 conjunts are in the unsatisfiable core [2022-12-13 13:15:27,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:15:27,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 13:15:27,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 13:15:27,692 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:15:27,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:15:27,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 13:15:27,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-13 13:15:27,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-13 13:15:27,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:15:27,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:15:27,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:15:27,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:15:27,928 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:15:27,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2022-12-13 13:15:27,935 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:15:27,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:15:29,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2022-12-13 13:15:29,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-12-13 13:15:29,367 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:15:29,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713953031] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 13:15:29,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:15:29,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19, 17] total 41 [2022-12-13 13:15:29,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533326544] [2022-12-13 13:15:29,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:29,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:15:29,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:29,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:15:29,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1533, Unknown=0, NotChecked=0, Total=1722 [2022-12-13 13:15:31,673 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 13:15:31,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 1020 transitions, 28286 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:31,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:31,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 13:15:31,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:35,029 INFO L130 PetriNetUnfolder]: 1447/3514 cut-off events. [2022-12-13 13:15:35,029 INFO L131 PetriNetUnfolder]: For 194706/194791 co-relation queries the response was YES. [2022-12-13 13:15:35,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41848 conditions, 3514 events. 1447/3514 cut-off events. For 194706/194791 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 27964 event pairs, 283 based on Foata normal form. 12/3509 useless extension candidates. Maximal degree in co-relation 41677. Up to 2366 conditions per place. [2022-12-13 13:15:35,075 INFO L137 encePairwiseOnDemand]: 165/182 looper letters, 799 selfloop transitions, 171 changer transitions 13/1069 dead transitions. [2022-12-13 13:15:35,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 1069 transitions, 30971 flow [2022-12-13 13:15:35,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:15:35,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:15:35,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 728 transitions. [2022-12-13 13:15:35,076 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2022-12-13 13:15:35,076 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 728 transitions. [2022-12-13 13:15:35,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 728 transitions. [2022-12-13 13:15:35,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:35,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 728 transitions. [2022-12-13 13:15:35,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 80.88888888888889) internal successors, (728), 9 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:35,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:35,078 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:35,078 INFO L175 Difference]: Start difference. First operand has 430 places, 1020 transitions, 28286 flow. Second operand 9 states and 728 transitions. [2022-12-13 13:15:35,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 1069 transitions, 30971 flow [2022-12-13 13:15:36,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 1069 transitions, 30895 flow, removed 21 selfloop flow, removed 1 redundant places. [2022-12-13 13:15:36,541 INFO L231 Difference]: Finished difference. Result has 441 places, 1032 transitions, 28954 flow [2022-12-13 13:15:36,542 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=28212, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1020, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=854, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=28954, PETRI_PLACES=441, PETRI_TRANSITIONS=1032} [2022-12-13 13:15:36,542 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 402 predicate places. [2022-12-13 13:15:36,542 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 1032 transitions, 28954 flow [2022-12-13 13:15:36,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:36,542 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:36,542 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:36,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 13:15:36,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-12-13 13:15:36,744 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:15:36,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:36,745 INFO L85 PathProgramCache]: Analyzing trace with hash -773359747, now seen corresponding path program 5 times [2022-12-13 13:15:36,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:36,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833095085] [2022-12-13 13:15:36,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:36,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:42,141 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:15:42,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:42,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833095085] [2022-12-13 13:15:42,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833095085] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:15:42,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255106062] [2022-12-13 13:15:42,142 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 13:15:42,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:15:42,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:15:42,143 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:15:42,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 13:15:42,329 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-12-13 13:15:42,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:15:42,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-13 13:15:42,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:15:42,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 13:15:42,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 13:15:42,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 13:15:42,534 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:15:42,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:15:42,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-13 13:15:42,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-13 13:15:42,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:15:42,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:15:42,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:15:42,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:15:42,725 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:15:42,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2022-12-13 13:15:42,731 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 13:15:42,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:15:43,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2022-12-13 13:15:43,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-12-13 13:15:43,979 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:15:43,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255106062] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 13:15:43,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:15:43,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19, 11] total 35 [2022-12-13 13:15:43,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875367631] [2022-12-13 13:15:43,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:43,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:15:43,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:43,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:15:43,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1090, Unknown=0, NotChecked=0, Total=1260 [2022-12-13 13:15:45,491 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 13:15:45,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 1032 transitions, 28954 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:45,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:45,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 13:15:45,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:49,261 INFO L130 PetriNetUnfolder]: 1445/3507 cut-off events. [2022-12-13 13:15:49,261 INFO L131 PetriNetUnfolder]: For 200662/200749 co-relation queries the response was YES. [2022-12-13 13:15:49,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42428 conditions, 3507 events. 1445/3507 cut-off events. For 200662/200749 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 27850 event pairs, 299 based on Foata normal form. 12/3501 useless extension candidates. Maximal degree in co-relation 42253. Up to 2364 conditions per place. [2022-12-13 13:15:49,302 INFO L137 encePairwiseOnDemand]: 165/182 looper letters, 775 selfloop transitions, 200 changer transitions 14/1075 dead transitions. [2022-12-13 13:15:49,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 1075 transitions, 31565 flow [2022-12-13 13:15:49,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:15:49,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:15:49,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 736 transitions. [2022-12-13 13:15:49,303 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44932844932844934 [2022-12-13 13:15:49,303 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 736 transitions. [2022-12-13 13:15:49,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 736 transitions. [2022-12-13 13:15:49,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:49,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 736 transitions. [2022-12-13 13:15:49,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 81.77777777777777) internal successors, (736), 9 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:49,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:49,305 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:49,305 INFO L175 Difference]: Start difference. First operand has 441 places, 1032 transitions, 28954 flow. Second operand 9 states and 736 transitions. [2022-12-13 13:15:49,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 1075 transitions, 31565 flow [2022-12-13 13:15:50,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 1075 transitions, 31477 flow, removed 22 selfloop flow, removed 2 redundant places. [2022-12-13 13:15:50,636 INFO L231 Difference]: Finished difference. Result has 449 places, 1035 transitions, 29378 flow [2022-12-13 13:15:50,637 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=28866, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1032, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=834, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=29378, PETRI_PLACES=449, PETRI_TRANSITIONS=1035} [2022-12-13 13:15:50,637 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 410 predicate places. [2022-12-13 13:15:50,637 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 1035 transitions, 29378 flow [2022-12-13 13:15:50,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:50,637 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:50,637 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:50,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 13:15:50,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:15:50,839 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:15:50,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:50,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1884986109, now seen corresponding path program 6 times [2022-12-13 13:15:50,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:50,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014829000] [2022-12-13 13:15:50,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:50,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:51,346 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:15:51,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:51,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014829000] [2022-12-13 13:15:51,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014829000] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:51,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:51,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:15:51,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495331647] [2022-12-13 13:15:51,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:51,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:15:51,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:51,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:15:51,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:15:51,595 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 182 [2022-12-13 13:15:51,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 1035 transitions, 29378 flow. Second operand has 9 states, 9 states have (on average 69.22222222222223) internal successors, (623), 9 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:51,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:51,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 182 [2022-12-13 13:15:51,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:54,337 INFO L130 PetriNetUnfolder]: 1507/3596 cut-off events. [2022-12-13 13:15:54,337 INFO L131 PetriNetUnfolder]: For 210880/210916 co-relation queries the response was YES. [2022-12-13 13:15:54,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44126 conditions, 3596 events. 1507/3596 cut-off events. For 210880/210916 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 28229 event pairs, 321 based on Foata normal form. 9/3602 useless extension candidates. Maximal degree in co-relation 43949. Up to 2589 conditions per place. [2022-12-13 13:15:54,385 INFO L137 encePairwiseOnDemand]: 163/182 looper letters, 815 selfloop transitions, 268 changer transitions 28/1114 dead transitions. [2022-12-13 13:15:54,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 1114 transitions, 33451 flow [2022-12-13 13:15:54,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:15:54,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:15:54,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 730 transitions. [2022-12-13 13:15:54,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4456654456654457 [2022-12-13 13:15:54,387 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 730 transitions. [2022-12-13 13:15:54,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 730 transitions. [2022-12-13 13:15:54,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:54,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 730 transitions. [2022-12-13 13:15:54,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:54,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:54,389 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:54,389 INFO L175 Difference]: Start difference. First operand has 449 places, 1035 transitions, 29378 flow. Second operand 9 states and 730 transitions. [2022-12-13 13:15:54,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 1114 transitions, 33451 flow [2022-12-13 13:15:55,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 1114 transitions, 33168 flow, removed 28 selfloop flow, removed 5 redundant places. [2022-12-13 13:15:55,922 INFO L231 Difference]: Finished difference. Result has 454 places, 1043 transitions, 30029 flow [2022-12-13 13:15:55,922 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=29100, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1035, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=260, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=768, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=30029, PETRI_PLACES=454, PETRI_TRANSITIONS=1043} [2022-12-13 13:15:55,922 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 415 predicate places. [2022-12-13 13:15:55,923 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 1043 transitions, 30029 flow [2022-12-13 13:15:55,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 69.22222222222223) internal successors, (623), 9 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:55,923 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:55,923 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:55,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-13 13:15:55,923 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:15:55,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:55,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1448987409, now seen corresponding path program 1 times [2022-12-13 13:15:55,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:55,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356587691] [2022-12-13 13:15:55,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:55,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:15:56,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:56,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356587691] [2022-12-13 13:15:56,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356587691] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:56,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:56,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:15:56,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175029919] [2022-12-13 13:15:56,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:56,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:15:56,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:56,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:15:56,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:15:56,641 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 13:15:56,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 1043 transitions, 30029 flow. Second operand has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:56,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:56,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 13:15:56,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:59,222 INFO L130 PetriNetUnfolder]: 1440/3518 cut-off events. [2022-12-13 13:15:59,223 INFO L131 PetriNetUnfolder]: For 205714/205834 co-relation queries the response was YES. [2022-12-13 13:15:59,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43337 conditions, 3518 events. 1440/3518 cut-off events. For 205714/205834 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 28077 event pairs, 292 based on Foata normal form. 27/3534 useless extension candidates. Maximal degree in co-relation 43159. Up to 1846 conditions per place. [2022-12-13 13:15:59,269 INFO L137 encePairwiseOnDemand]: 165/182 looper letters, 795 selfloop transitions, 293 changer transitions 10/1102 dead transitions. [2022-12-13 13:15:59,269 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 1102 transitions, 33148 flow [2022-12-13 13:15:59,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:15:59,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 13:15:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 834 transitions. [2022-12-13 13:15:59,271 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4582417582417582 [2022-12-13 13:15:59,271 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 834 transitions. [2022-12-13 13:15:59,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 834 transitions. [2022-12-13 13:15:59,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:59,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 834 transitions. [2022-12-13 13:15:59,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 83.4) internal successors, (834), 10 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:59,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:59,273 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:15:59,273 INFO L175 Difference]: Start difference. First operand has 454 places, 1043 transitions, 30029 flow. Second operand 10 states and 834 transitions. [2022-12-13 13:15:59,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 1102 transitions, 33148 flow [2022-12-13 13:16:00,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 1102 transitions, 32762 flow, removed 10 selfloop flow, removed 4 redundant places. [2022-12-13 13:16:00,908 INFO L231 Difference]: Finished difference. Result has 464 places, 1070 transitions, 31341 flow [2022-12-13 13:16:00,908 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=29659, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1043, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=271, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=761, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=31341, PETRI_PLACES=464, PETRI_TRANSITIONS=1070} [2022-12-13 13:16:00,909 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 425 predicate places. [2022-12-13 13:16:00,909 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 1070 transitions, 31341 flow [2022-12-13 13:16:00,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:00,909 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:00,909 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:00,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-13 13:16:00,909 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:16:00,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:00,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1910009563, now seen corresponding path program 1 times [2022-12-13 13:16:00,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:00,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290223965] [2022-12-13 13:16:00,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:00,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:01,328 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:16:01,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:01,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290223965] [2022-12-13 13:16:01,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290223965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:01,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:01,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:16:01,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281917256] [2022-12-13 13:16:01,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:01,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:16:01,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:01,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:16:01,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:16:01,654 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 13:16:01,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 1070 transitions, 31341 flow. Second operand has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:01,655 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:01,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 13:16:01,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:04,219 INFO L130 PetriNetUnfolder]: 1453/3536 cut-off events. [2022-12-13 13:16:04,219 INFO L131 PetriNetUnfolder]: For 222063/222146 co-relation queries the response was YES. [2022-12-13 13:16:04,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44302 conditions, 3536 events. 1453/3536 cut-off events. For 222063/222146 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 28218 event pairs, 277 based on Foata normal form. 16/3534 useless extension candidates. Maximal degree in co-relation 44119. Up to 1519 conditions per place. [2022-12-13 13:16:04,267 INFO L137 encePairwiseOnDemand]: 166/182 looper letters, 768 selfloop transitions, 262 changer transitions 10/1132 dead transitions. [2022-12-13 13:16:04,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 1132 transitions, 34345 flow [2022-12-13 13:16:04,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:16:04,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:16:04,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 753 transitions. [2022-12-13 13:16:04,269 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4597069597069597 [2022-12-13 13:16:04,269 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 753 transitions. [2022-12-13 13:16:04,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 753 transitions. [2022-12-13 13:16:04,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:04,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 753 transitions. [2022-12-13 13:16:04,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 83.66666666666667) internal successors, (753), 9 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:04,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:04,270 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:04,270 INFO L175 Difference]: Start difference. First operand has 464 places, 1070 transitions, 31341 flow. Second operand 9 states and 753 transitions. [2022-12-13 13:16:04,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 1132 transitions, 34345 flow [2022-12-13 13:16:05,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 1132 transitions, 34093 flow, removed 92 selfloop flow, removed 3 redundant places. [2022-12-13 13:16:06,020 INFO L231 Difference]: Finished difference. Result has 474 places, 1100 transitions, 32689 flow [2022-12-13 13:16:06,020 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=31111, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1070, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=821, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=32689, PETRI_PLACES=474, PETRI_TRANSITIONS=1100} [2022-12-13 13:16:06,020 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 435 predicate places. [2022-12-13 13:16:06,021 INFO L495 AbstractCegarLoop]: Abstraction has has 474 places, 1100 transitions, 32689 flow [2022-12-13 13:16:06,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:06,021 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:06,021 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:06,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-13 13:16:06,021 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:16:06,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:06,021 INFO L85 PathProgramCache]: Analyzing trace with hash -114297395, now seen corresponding path program 2 times [2022-12-13 13:16:06,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:06,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031763420] [2022-12-13 13:16:06,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:06,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:16:09,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:09,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031763420] [2022-12-13 13:16:09,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031763420] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:09,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129047592] [2022-12-13 13:16:09,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:16:09,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:09,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:09,111 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:09,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 13:16:09,225 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 13:16:09,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:16:09,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-13 13:16:09,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:09,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 13:16:09,262 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:16:09,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:16:09,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 13:16:09,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 13:16:09,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 13:16:09,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 13:16:09,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:09,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:09,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:09,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 67 [2022-12-13 13:16:09,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:09,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:09,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:09,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:09,624 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:16:09,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 69 [2022-12-13 13:16:11,708 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:16:11,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:16:11,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129047592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:11,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:16:11,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 27 [2022-12-13 13:16:11,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171783900] [2022-12-13 13:16:11,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:11,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:16:11,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:11,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:16:11,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2022-12-13 13:16:12,218 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 13:16:12,218 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 1100 transitions, 32689 flow. Second operand has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:12,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:12,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 13:16:12,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:15,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:16:17,022 INFO L130 PetriNetUnfolder]: 1492/3638 cut-off events. [2022-12-13 13:16:17,022 INFO L131 PetriNetUnfolder]: For 234254/234416 co-relation queries the response was YES. [2022-12-13 13:16:17,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46660 conditions, 3638 events. 1492/3638 cut-off events. For 234254/234416 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 29125 event pairs, 294 based on Foata normal form. 46/3672 useless extension candidates. Maximal degree in co-relation 46472. Up to 1778 conditions per place. [2022-12-13 13:16:17,080 INFO L137 encePairwiseOnDemand]: 173/182 looper letters, 887 selfloop transitions, 274 changer transitions 55/1220 dead transitions. [2022-12-13 13:16:17,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 1220 transitions, 37615 flow [2022-12-13 13:16:17,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:16:17,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:16:17,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 757 transitions. [2022-12-13 13:16:17,082 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4621489621489622 [2022-12-13 13:16:17,082 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 757 transitions. [2022-12-13 13:16:17,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 757 transitions. [2022-12-13 13:16:17,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:17,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 757 transitions. [2022-12-13 13:16:17,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 84.11111111111111) internal successors, (757), 9 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:17,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:17,084 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:17,084 INFO L175 Difference]: Start difference. First operand has 474 places, 1100 transitions, 32689 flow. Second operand 9 states and 757 transitions. [2022-12-13 13:16:17,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 1220 transitions, 37615 flow [2022-12-13 13:16:19,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 1220 transitions, 37333 flow, removed 71 selfloop flow, removed 4 redundant places. [2022-12-13 13:16:19,059 INFO L231 Difference]: Finished difference. Result has 483 places, 1109 transitions, 33569 flow [2022-12-13 13:16:19,059 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=32449, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=248, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=826, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=33569, PETRI_PLACES=483, PETRI_TRANSITIONS=1109} [2022-12-13 13:16:19,059 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 444 predicate places. [2022-12-13 13:16:19,059 INFO L495 AbstractCegarLoop]: Abstraction has has 483 places, 1109 transitions, 33569 flow [2022-12-13 13:16:19,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:19,060 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:19,060 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:19,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-13 13:16:19,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2022-12-13 13:16:19,261 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:16:19,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:19,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1896866457, now seen corresponding path program 2 times [2022-12-13 13:16:19,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:19,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723464651] [2022-12-13 13:16:19,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:19,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:19,890 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:16:19,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:19,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723464651] [2022-12-13 13:16:19,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723464651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:19,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:19,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:16:19,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510008320] [2022-12-13 13:16:19,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:19,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:16:19,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:19,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:16:19,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:16:20,269 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 13:16:20,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 1109 transitions, 33569 flow. Second operand has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:20,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:20,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 13:16:20,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:23,174 INFO L130 PetriNetUnfolder]: 1476/3607 cut-off events. [2022-12-13 13:16:23,175 INFO L131 PetriNetUnfolder]: For 251072/251158 co-relation queries the response was YES. [2022-12-13 13:16:23,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46974 conditions, 3607 events. 1476/3607 cut-off events. For 251072/251158 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 28958 event pairs, 283 based on Foata normal form. 12/3601 useless extension candidates. Maximal degree in co-relation 46783. Up to 1571 conditions per place. [2022-12-13 13:16:23,225 INFO L137 encePairwiseOnDemand]: 168/182 looper letters, 792 selfloop transitions, 248 changer transitions 10/1142 dead transitions. [2022-12-13 13:16:23,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 1142 transitions, 36107 flow [2022-12-13 13:16:23,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:16:23,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:16:23,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 751 transitions. [2022-12-13 13:16:23,227 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45848595848595847 [2022-12-13 13:16:23,227 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 751 transitions. [2022-12-13 13:16:23,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 751 transitions. [2022-12-13 13:16:23,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:23,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 751 transitions. [2022-12-13 13:16:23,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 83.44444444444444) internal successors, (751), 9 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:23,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:23,228 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:23,229 INFO L175 Difference]: Start difference. First operand has 483 places, 1109 transitions, 33569 flow. Second operand 9 states and 751 transitions. [2022-12-13 13:16:23,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 1142 transitions, 36107 flow [2022-12-13 13:16:25,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 1142 transitions, 35997 flow, removed 31 selfloop flow, removed 2 redundant places. [2022-12-13 13:16:25,252 INFO L231 Difference]: Finished difference. Result has 490 places, 1111 transitions, 34072 flow [2022-12-13 13:16:25,253 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=33463, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=863, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=34072, PETRI_PLACES=490, PETRI_TRANSITIONS=1111} [2022-12-13 13:16:25,253 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 451 predicate places. [2022-12-13 13:16:25,253 INFO L495 AbstractCegarLoop]: Abstraction has has 490 places, 1111 transitions, 34072 flow [2022-12-13 13:16:25,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:25,253 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:25,254 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:25,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-13 13:16:25,254 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:16:25,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:25,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1184852842, now seen corresponding path program 2 times [2022-12-13 13:16:25,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:25,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589324062] [2022-12-13 13:16:25,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:25,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:26,009 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:16:26,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:26,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589324062] [2022-12-13 13:16:26,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589324062] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:26,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:26,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:16:26,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116070954] [2022-12-13 13:16:26,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:26,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:16:26,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:26,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:16:26,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:26,428 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2022-12-13 13:16:26,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 1111 transitions, 34072 flow. Second operand has 10 states, 10 states have (on average 75.8) internal successors, (758), 10 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:26,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:26,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2022-12-13 13:16:26,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:29,184 INFO L130 PetriNetUnfolder]: 1399/3479 cut-off events. [2022-12-13 13:16:29,184 INFO L131 PetriNetUnfolder]: For 253869/254107 co-relation queries the response was YES. [2022-12-13 13:16:29,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46130 conditions, 3479 events. 1399/3479 cut-off events. For 253869/254107 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 28272 event pairs, 127 based on Foata normal form. 61/3521 useless extension candidates. Maximal degree in co-relation 45938. Up to 1859 conditions per place. [2022-12-13 13:16:29,233 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 651 selfloop transitions, 393 changer transitions 10/1180 dead transitions. [2022-12-13 13:16:29,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 1180 transitions, 37375 flow [2022-12-13 13:16:29,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:16:29,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 13:16:29,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 937 transitions. [2022-12-13 13:16:29,235 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.468031968031968 [2022-12-13 13:16:29,235 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 937 transitions. [2022-12-13 13:16:29,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 937 transitions. [2022-12-13 13:16:29,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:29,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 937 transitions. [2022-12-13 13:16:29,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 85.18181818181819) internal successors, (937), 11 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:29,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:29,237 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:29,237 INFO L175 Difference]: Start difference. First operand has 490 places, 1111 transitions, 34072 flow. Second operand 11 states and 937 transitions. [2022-12-13 13:16:29,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 1180 transitions, 37375 flow [2022-12-13 13:16:31,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 1180 transitions, 37052 flow, removed 15 selfloop flow, removed 5 redundant places. [2022-12-13 13:16:31,242 INFO L231 Difference]: Finished difference. Result has 497 places, 1113 transitions, 34685 flow [2022-12-13 13:16:31,242 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=33758, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=391, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=718, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=34685, PETRI_PLACES=497, PETRI_TRANSITIONS=1113} [2022-12-13 13:16:31,243 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 458 predicate places. [2022-12-13 13:16:31,243 INFO L495 AbstractCegarLoop]: Abstraction has has 497 places, 1113 transitions, 34685 flow [2022-12-13 13:16:31,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.8) internal successors, (758), 10 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:31,243 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:31,243 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:31,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-13 13:16:31,243 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:16:31,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:31,243 INFO L85 PathProgramCache]: Analyzing trace with hash -835679009, now seen corresponding path program 3 times [2022-12-13 13:16:31,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:31,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106852670] [2022-12-13 13:16:31,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:31,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:33,557 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:16:33,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:33,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106852670] [2022-12-13 13:16:33,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106852670] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:33,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343413523] [2022-12-13 13:16:33,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:16:33,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:33,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:33,558 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:33,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 13:16:33,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 13:16:33,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:16:33,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-13 13:16:33,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:33,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 13:16:33,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 13:16:33,782 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 13:16:33,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-12-13 13:16:33,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 13:16:33,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 13:16:33,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 13:16:34,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:34,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:34,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:34,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 67 [2022-12-13 13:16:34,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:34,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:34,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:34,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:34,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:34,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:34,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:16:34,106 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:16:34,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 79 [2022-12-13 13:16:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:16:34,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:16:34,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343413523] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:34,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:16:34,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19] total 28 [2022-12-13 13:16:34,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994610945] [2022-12-13 13:16:34,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:34,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:16:34,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:34,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:16:34,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=723, Unknown=0, NotChecked=0, Total=812 [2022-12-13 13:16:34,768 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 182 [2022-12-13 13:16:34,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 1113 transitions, 34685 flow. Second operand has 10 states, 10 states have (on average 70.1) internal successors, (701), 10 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:34,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:34,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 182 [2022-12-13 13:16:34,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:38,149 INFO L130 PetriNetUnfolder]: 1497/3700 cut-off events. [2022-12-13 13:16:38,150 INFO L131 PetriNetUnfolder]: For 268469/268618 co-relation queries the response was YES. [2022-12-13 13:16:38,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49514 conditions, 3700 events. 1497/3700 cut-off events. For 268469/268618 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 29904 event pairs, 294 based on Foata normal form. 58/3748 useless extension candidates. Maximal degree in co-relation 49321. Up to 2374 conditions per place. [2022-12-13 13:16:38,203 INFO L137 encePairwiseOnDemand]: 163/182 looper letters, 813 selfloop transitions, 368 changer transitions 51/1236 dead transitions. [2022-12-13 13:16:38,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 1236 transitions, 39923 flow [2022-12-13 13:16:38,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:16:38,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 13:16:38,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 820 transitions. [2022-12-13 13:16:38,205 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45054945054945056 [2022-12-13 13:16:38,205 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 820 transitions. [2022-12-13 13:16:38,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 820 transitions. [2022-12-13 13:16:38,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:38,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 820 transitions. [2022-12-13 13:16:38,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:38,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:38,207 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:38,207 INFO L175 Difference]: Start difference. First operand has 497 places, 1113 transitions, 34685 flow. Second operand 10 states and 820 transitions. [2022-12-13 13:16:38,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 1236 transitions, 39923 flow [2022-12-13 13:16:40,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 1236 transitions, 39223 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-12-13 13:16:40,356 INFO L231 Difference]: Finished difference. Result has 507 places, 1125 transitions, 35858 flow [2022-12-13 13:16:40,357 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=34003, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=347, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=748, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=35858, PETRI_PLACES=507, PETRI_TRANSITIONS=1125} [2022-12-13 13:16:40,357 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 468 predicate places. [2022-12-13 13:16:40,357 INFO L495 AbstractCegarLoop]: Abstraction has has 507 places, 1125 transitions, 35858 flow [2022-12-13 13:16:40,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 70.1) internal successors, (701), 10 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:40,357 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:40,357 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:40,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 13:16:40,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac6feb9-a997-4b1d-80c9-3dc69e79aa6c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-12-13 13:16:40,559 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:16:40,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:40,560 INFO L85 PathProgramCache]: Analyzing trace with hash -90587571, now seen corresponding path program 4 times [2022-12-13 13:16:40,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:40,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631144060] [2022-12-13 13:16:40,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:40,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:41,017 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:16:41,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:41,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631144060] [2022-12-13 13:16:41,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631144060] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:41,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:41,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:16:41,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963999505] [2022-12-13 13:16:41,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:41,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:16:41,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:41,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:16:41,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:16:41,389 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 13:16:41,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 1125 transitions, 35858 flow. Second operand has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:41,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:41,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 13:16:41,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:44,345 INFO L130 PetriNetUnfolder]: 1470/3640 cut-off events. [2022-12-13 13:16:44,345 INFO L131 PetriNetUnfolder]: For 274664/274810 co-relation queries the response was YES. [2022-12-13 13:16:44,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49372 conditions, 3640 events. 1470/3640 cut-off events. For 274664/274810 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 29411 event pairs, 284 based on Foata normal form. 31/3661 useless extension candidates. Maximal degree in co-relation 49172. Up to 2599 conditions per place. [2022-12-13 13:16:44,397 INFO L137 encePairwiseOnDemand]: 164/182 looper letters, 767 selfloop transitions, 378 changer transitions 10/1159 dead transitions. [2022-12-13 13:16:44,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 1159 transitions, 38720 flow [2022-12-13 13:16:44,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:16:44,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:16:44,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 741 transitions. [2022-12-13 13:16:44,398 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2022-12-13 13:16:44,398 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 741 transitions. [2022-12-13 13:16:44,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 741 transitions. [2022-12-13 13:16:44,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:44,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 741 transitions. [2022-12-13 13:16:44,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.33333333333333) internal successors, (741), 9 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:44,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:44,400 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:44,400 INFO L175 Difference]: Start difference. First operand has 507 places, 1125 transitions, 35858 flow. Second operand 9 states and 741 transitions. [2022-12-13 13:16:44,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 1159 transitions, 38720 flow [2022-12-13 13:16:46,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 1159 transitions, 38286 flow, removed 76 selfloop flow, removed 4 redundant places. [2022-12-13 13:16:46,672 INFO L231 Difference]: Finished difference. Result has 510 places, 1133 transitions, 36385 flow [2022-12-13 13:16:46,672 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=35452, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=372, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=751, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=36385, PETRI_PLACES=510, PETRI_TRANSITIONS=1133} [2022-12-13 13:16:46,672 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 471 predicate places. [2022-12-13 13:16:46,672 INFO L495 AbstractCegarLoop]: Abstraction has has 510 places, 1133 transitions, 36385 flow [2022-12-13 13:16:46,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:46,672 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:46,673 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:46,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-13 13:16:46,673 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:16:46,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:46,673 INFO L85 PathProgramCache]: Analyzing trace with hash 516205791, now seen corresponding path program 5 times [2022-12-13 13:16:46,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:46,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160951796] [2022-12-13 13:16:46,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:46,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:47,079 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:16:47,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:47,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160951796] [2022-12-13 13:16:47,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160951796] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:47,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:47,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:16:47,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146094155] [2022-12-13 13:16:47,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:47,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:16:47,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:47,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:16:47,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:16:47,300 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 13:16:47,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 1133 transitions, 36385 flow. Second operand has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:47,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:47,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 13:16:47,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:50,151 INFO L130 PetriNetUnfolder]: 1466/3632 cut-off events. [2022-12-13 13:16:50,151 INFO L131 PetriNetUnfolder]: For 276639/276802 co-relation queries the response was YES. [2022-12-13 13:16:50,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49692 conditions, 3632 events. 1466/3632 cut-off events. For 276639/276802 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 29281 event pairs, 292 based on Foata normal form. 43/3664 useless extension candidates. Maximal degree in co-relation 49493. Up to 2611 conditions per place. [2022-12-13 13:16:50,202 INFO L137 encePairwiseOnDemand]: 164/182 looper letters, 759 selfloop transitions, 390 changer transitions 9/1162 dead transitions. [2022-12-13 13:16:50,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 1162 transitions, 39107 flow [2022-12-13 13:16:50,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:16:50,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:16:50,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 748 transitions. [2022-12-13 13:16:50,203 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45665445665445664 [2022-12-13 13:16:50,204 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 748 transitions. [2022-12-13 13:16:50,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 748 transitions. [2022-12-13 13:16:50,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:50,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 748 transitions. [2022-12-13 13:16:50,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 83.11111111111111) internal successors, (748), 9 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:50,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:50,205 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:50,205 INFO L175 Difference]: Start difference. First operand has 510 places, 1133 transitions, 36385 flow. Second operand 9 states and 748 transitions. [2022-12-13 13:16:50,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 1162 transitions, 39107 flow [2022-12-13 13:16:52,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 1162 transitions, 38624 flow, removed 43 selfloop flow, removed 5 redundant places. [2022-12-13 13:16:52,368 INFO L231 Difference]: Finished difference. Result has 514 places, 1135 transitions, 36742 flow [2022-12-13 13:16:52,368 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=35916, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=389, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=744, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=36742, PETRI_PLACES=514, PETRI_TRANSITIONS=1135} [2022-12-13 13:16:52,368 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 475 predicate places. [2022-12-13 13:16:52,368 INFO L495 AbstractCegarLoop]: Abstraction has has 514 places, 1135 transitions, 36742 flow [2022-12-13 13:16:52,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.33333333333333) internal successors, (651), 9 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:52,369 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:52,369 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:52,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-13 13:16:52,369 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:16:52,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:52,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1810741250, now seen corresponding path program 1 times [2022-12-13 13:16:52,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:52,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121261167] [2022-12-13 13:16:52,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:52,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:53,455 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:16:53,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:53,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121261167] [2022-12-13 13:16:53,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121261167] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:53,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:53,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:16:53,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594913955] [2022-12-13 13:16:53,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:53,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:16:53,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:53,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:16:53,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:53,889 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2022-12-13 13:16:53,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 1135 transitions, 36742 flow. Second operand has 10 states, 10 states have (on average 75.8) internal successors, (758), 10 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:53,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:16:53,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2022-12-13 13:16:53,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:16:56,736 INFO L130 PetriNetUnfolder]: 1444/3618 cut-off events. [2022-12-13 13:16:56,736 INFO L131 PetriNetUnfolder]: For 288689/288828 co-relation queries the response was YES. [2022-12-13 13:16:56,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49615 conditions, 3618 events. 1444/3618 cut-off events. For 288689/288828 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 29490 event pairs, 238 based on Foata normal form. 24/3629 useless extension candidates. Maximal degree in co-relation 49416. Up to 1978 conditions per place. [2022-12-13 13:16:56,790 INFO L137 encePairwiseOnDemand]: 165/182 looper letters, 940 selfloop transitions, 168 changer transitions 8/1224 dead transitions. [2022-12-13 13:16:56,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 1224 transitions, 40835 flow [2022-12-13 13:16:56,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:16:56,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 13:16:56,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 858 transitions. [2022-12-13 13:16:56,791 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2022-12-13 13:16:56,791 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 858 transitions. [2022-12-13 13:16:56,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 858 transitions. [2022-12-13 13:16:56,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:16:56,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 858 transitions. [2022-12-13 13:16:56,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:56,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:56,793 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:56,793 INFO L175 Difference]: Start difference. First operand has 514 places, 1135 transitions, 36742 flow. Second operand 10 states and 858 transitions. [2022-12-13 13:16:56,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 1224 transitions, 40835 flow [2022-12-13 13:16:59,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 1224 transitions, 40441 flow, removed 14 selfloop flow, removed 5 redundant places. [2022-12-13 13:16:59,097 INFO L231 Difference]: Finished difference. Result has 520 places, 1146 transitions, 37041 flow [2022-12-13 13:16:59,098 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=36370, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=969, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=37041, PETRI_PLACES=520, PETRI_TRANSITIONS=1146} [2022-12-13 13:16:59,098 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 481 predicate places. [2022-12-13 13:16:59,098 INFO L495 AbstractCegarLoop]: Abstraction has has 520 places, 1146 transitions, 37041 flow [2022-12-13 13:16:59,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.8) internal successors, (758), 10 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:16:59,098 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:16:59,098 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:59,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-13 13:16:59,098 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 13:16:59,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:59,098 INFO L85 PathProgramCache]: Analyzing trace with hash 951226476, now seen corresponding path program 2 times [2022-12-13 13:16:59,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:59,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22995674] [2022-12-13 13:16:59,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:59,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat