./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8 --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 a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- 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-e04fb08 [2022-11-16 11:06:16,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:06:16,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:06:16,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:06:16,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:06:16,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:06:16,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:06:16,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:06:16,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:06:16,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:06:16,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:06:16,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:06:16,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:06:16,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:06:16,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:06:16,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:06:16,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:06:16,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:06:16,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:06:16,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:06:16,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:06:16,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:06:16,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:06:16,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:06:16,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:06:16,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:06:16,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:06:16,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:06:16,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:06:16,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:06:16,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:06:16,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:06:16,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:06:16,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:06:16,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:06:16,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:06:16,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:06:16,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:06:16,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:06:16,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:06:16,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:06:16,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:06:16,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:06:16,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:06:16,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:06:16,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:06:16,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:06:16,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:06:16,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:06:16,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:06:16,426 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:06:16,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:06:16,427 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:06:16,427 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:06:16,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:06:16,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:06:16,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:06:16,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:06:16,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:06:16,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:06:16,429 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:06:16,429 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:06:16,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:06:16,430 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:06:16,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:06:16,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:06:16,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:06:16,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:06:16,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:06:16,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:06:16,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:06:16,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:06:16,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:06:16,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:06:16,433 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:06:16,433 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:06:16,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:06:16,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2022-11-16 11:06:16,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:06:16,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:06:16,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:06:16,845 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:06:16,847 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:06:16,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2022-11-16 11:06:16,951 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/data/37c101ea4/73daaa05059b44e3a5afc1bdb3727eee/FLAGc200dbac2 [2022-11-16 11:06:17,763 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:06:17,764 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2022-11-16 11:06:17,787 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/data/37c101ea4/73daaa05059b44e3a5afc1bdb3727eee/FLAGc200dbac2 [2022-11-16 11:06:18,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/data/37c101ea4/73daaa05059b44e3a5afc1bdb3727eee [2022-11-16 11:06:18,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:06:18,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:06:18,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:06:18,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:06:18,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:06:18,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:06:18" (1/1) ... [2022-11-16 11:06:18,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d950985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:18, skipping insertion in model container [2022-11-16 11:06:18,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:06:18" (1/1) ... [2022-11-16 11:06:18,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:06:18,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:06:19,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:06:19,033 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:06:19,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:06:19,233 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:06:19,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:19 WrapperNode [2022-11-16 11:06:19,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:06:19,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:06:19,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:06:19,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:06:19,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:19" (1/1) ... [2022-11-16 11:06:19,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:19" (1/1) ... [2022-11-16 11:06:19,328 INFO L138 Inliner]: procedures = 370, calls = 51, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 241 [2022-11-16 11:06:19,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:06:19,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:06:19,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:06:19,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:06:19,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:19" (1/1) ... [2022-11-16 11:06:19,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:19" (1/1) ... [2022-11-16 11:06:19,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:19" (1/1) ... [2022-11-16 11:06:19,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:19" (1/1) ... [2022-11-16 11:06:19,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:19" (1/1) ... [2022-11-16 11:06:19,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:19" (1/1) ... [2022-11-16 11:06:19,385 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:19" (1/1) ... [2022-11-16 11:06:19,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:19" (1/1) ... [2022-11-16 11:06:19,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:06:19,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:06:19,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:06:19,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:06:19,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:19" (1/1) ... [2022-11-16 11:06:19,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:06:19,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:19,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:19,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795680cb-a87b-4dba-a5cf-5ab97b4b9504/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:06:19,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:06:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:06:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:06:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:06:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:06:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:06:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:06:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:06:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:06:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:06:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:06:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:06:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:06:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:06:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:06:19,524 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:06:19,793 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:06:19,796 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:06:20,708 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:06:20,730 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:06:20,733 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:06:20,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:06:20 BoogieIcfgContainer [2022-11-16 11:06:20,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:06:20,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:06:20,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:06:20,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:06:20,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:06:18" (1/3) ... [2022-11-16 11:06:20,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af82ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:06:20, skipping insertion in model container [2022-11-16 11:06:20,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:19" (2/3) ... [2022-11-16 11:06:20,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af82ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:06:20, skipping insertion in model container [2022-11-16 11:06:20,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:06:20" (3/3) ... [2022-11-16 11:06:20,753 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2022-11-16 11:06:20,769 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:06:20,783 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:06:20,783 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-16 11:06:20,784 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:06:20,964 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:06:21,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 281 places, 279 transitions, 563 flow [2022-11-16 11:06:21,284 INFO L130 PetriNetUnfolder]: 2/278 cut-off events. [2022-11-16 11:06:21,284 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:06:21,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 278 events. 2/278 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2022-11-16 11:06:21,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 281 places, 279 transitions, 563 flow [2022-11-16 11:06:21,314 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 280 places, 278 transitions, 559 flow [2022-11-16 11:06:21,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:06:21,357 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;@508882e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:06:21,358 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-16 11:06:21,370 INFO L130 PetriNetUnfolder]: 0/39 cut-off events. [2022-11-16 11:06:21,370 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:06:21,370 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:21,372 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:21,373 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-16 11:06:21,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:21,381 INFO L85 PathProgramCache]: Analyzing trace with hash 655555695, now seen corresponding path program 1 times [2022-11-16 11:06:21,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:21,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581649130] [2022-11-16 11:06:21,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:21,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:22,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:22,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:22,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581649130] [2022-11-16 11:06:22,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581649130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:22,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:22,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:06:22,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337796128] [2022-11-16 11:06:22,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:22,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:06:22,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:22,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:06:22,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:06:22,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 279 [2022-11-16 11:06:22,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 278 transitions, 559 flow. Second operand has 6 states, 6 states have (on average 148.66666666666666) internal successors, (892), 6 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:22,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:22,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 279 [2022-11-16 11:06:22,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:25,397 INFO L130 PetriNetUnfolder]: 2452/7160 cut-off events. [2022-11-16 11:06:25,397 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:06:25,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12116 conditions, 7160 events. 2452/7160 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 52936 event pairs, 2408 based on Foata normal form. 48/6331 useless extension candidates. Maximal degree in co-relation 12002. Up to 4947 conditions per place. [2022-11-16 11:06:25,458 INFO L137 encePairwiseOnDemand]: 272/279 looper letters, 125 selfloop transitions, 5 changer transitions 0/276 dead transitions. [2022-11-16 11:06:25,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 276 transitions, 815 flow [2022-11-16 11:06:25,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:06:25,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:06:25,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1014 transitions. [2022-11-16 11:06:25,493 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6057347670250897 [2022-11-16 11:06:25,494 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1014 transitions. [2022-11-16 11:06:25,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1014 transitions. [2022-11-16 11:06:25,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:25,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1014 transitions. [2022-11-16 11:06:25,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:25,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:25,527 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:25,530 INFO L175 Difference]: Start difference. First operand has 280 places, 278 transitions, 559 flow. Second operand 6 states and 1014 transitions. [2022-11-16 11:06:25,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 276 transitions, 815 flow [2022-11-16 11:06:25,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 276 transitions, 814 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:06:25,550 INFO L231 Difference]: Finished difference. Result has 283 places, 276 transitions, 564 flow [2022-11-16 11:06:25,553 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=564, PETRI_PLACES=283, PETRI_TRANSITIONS=276} [2022-11-16 11:06:25,560 INFO L288 CegarLoopForPetriNet]: 280 programPoint places, 3 predicate places. [2022-11-16 11:06:25,561 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 276 transitions, 564 flow [2022-11-16 11:06:25,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.66666666666666) internal successors, (892), 6 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:25,563 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:25,563 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:25,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:06:25,564 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-16 11:06:25,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:25,566 INFO L85 PathProgramCache]: Analyzing trace with hash 472888241, now seen corresponding path program 1 times [2022-11-16 11:06:25,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:25,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214471143] [2022-11-16 11:06:25,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:25,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:26,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:26,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:26,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214471143] [2022-11-16 11:06:26,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214471143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:26,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:26,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:06:26,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444677891] [2022-11-16 11:06:26,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:26,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:06:26,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:26,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:06:26,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:06:26,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 279 [2022-11-16 11:06:26,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 276 transitions, 564 flow. Second operand has 6 states, 6 states have (on average 152.33333333333334) internal successors, (914), 6 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:26,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:26,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 279 [2022-11-16 11:06:26,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:30,037 INFO L130 PetriNetUnfolder]: 3374/9761 cut-off events. [2022-11-16 11:06:30,037 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:06:30,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16623 conditions, 9761 events. 3374/9761 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 77334 event pairs, 1399 based on Foata normal form. 0/8563 useless extension candidates. Maximal degree in co-relation 16565. Up to 5264 conditions per place. [2022-11-16 11:06:30,099 INFO L137 encePairwiseOnDemand]: 247/279 looper letters, 230 selfloop transitions, 90 changer transitions 0/469 dead transitions. [2022-11-16 11:06:30,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 469 transitions, 1590 flow [2022-11-16 11:06:30,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:06:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:06:30,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1222 transitions. [2022-11-16 11:06:30,104 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7299880525686977 [2022-11-16 11:06:30,105 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1222 transitions. [2022-11-16 11:06:30,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1222 transitions. [2022-11-16 11:06:30,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:30,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1222 transitions. [2022-11-16 11:06:30,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.66666666666666) internal successors, (1222), 6 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:30,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:30,117 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:30,117 INFO L175 Difference]: Start difference. First operand has 283 places, 276 transitions, 564 flow. Second operand 6 states and 1222 transitions. [2022-11-16 11:06:30,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 469 transitions, 1590 flow [2022-11-16 11:06:30,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 469 transitions, 1580 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:06:30,137 INFO L231 Difference]: Finished difference. Result has 287 places, 359 transitions, 1130 flow [2022-11-16 11:06:30,138 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1130, PETRI_PLACES=287, PETRI_TRANSITIONS=359} [2022-11-16 11:06:30,139 INFO L288 CegarLoopForPetriNet]: 280 programPoint places, 7 predicate places. [2022-11-16 11:06:30,139 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 359 transitions, 1130 flow [2022-11-16 11:06:30,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.33333333333334) internal successors, (914), 6 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:30,140 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:30,141 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:30,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:06:30,141 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-16 11:06:30,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:30,143 INFO L85 PathProgramCache]: Analyzing trace with hash -722360085, now seen corresponding path program 1 times [2022-11-16 11:06:30,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:30,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201073390] [2022-11-16 11:06:30,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:30,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:30,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:30,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:30,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201073390] [2022-11-16 11:06:30,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201073390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:30,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:30,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:06:30,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845036318] [2022-11-16 11:06:30,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:30,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:06:30,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:30,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:06:30,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:06:30,664 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 279 [2022-11-16 11:06:30,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 359 transitions, 1130 flow. Second operand has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:30,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:30,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 279 [2022-11-16 11:06:30,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:34,381 INFO L130 PetriNetUnfolder]: 3685/10622 cut-off events. [2022-11-16 11:06:34,381 INFO L131 PetriNetUnfolder]: For 2178/2180 co-relation queries the response was YES. [2022-11-16 11:06:34,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20958 conditions, 10622 events. 3685/10622 cut-off events. For 2178/2180 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 83602 event pairs, 2558 based on Foata normal form. 0/9362 useless extension candidates. Maximal degree in co-relation 20835. Up to 7137 conditions per place. [2022-11-16 11:06:34,450 INFO L137 encePairwiseOnDemand]: 238/279 looper letters, 264 selfloop transitions, 123 changer transitions 0/531 dead transitions. [2022-11-16 11:06:34,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 531 transitions, 2408 flow [2022-11-16 11:06:34,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:06:34,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:06:34,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1175 transitions. [2022-11-16 11:06:34,456 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7019115890083633 [2022-11-16 11:06:34,456 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1175 transitions. [2022-11-16 11:06:34,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1175 transitions. [2022-11-16 11:06:34,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:34,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1175 transitions. [2022-11-16 11:06:34,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.83333333333334) internal successors, (1175), 6 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:34,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:34,467 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:34,468 INFO L175 Difference]: Start difference. First operand has 287 places, 359 transitions, 1130 flow. Second operand 6 states and 1175 transitions. [2022-11-16 11:06:34,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 531 transitions, 2408 flow [2022-11-16 11:06:34,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 531 transitions, 2408 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:06:34,490 INFO L231 Difference]: Finished difference. Result has 296 places, 475 transitions, 2082 flow [2022-11-16 11:06:34,491 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=1128, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2082, PETRI_PLACES=296, PETRI_TRANSITIONS=475} [2022-11-16 11:06:34,492 INFO L288 CegarLoopForPetriNet]: 280 programPoint places, 16 predicate places. [2022-11-16 11:06:34,492 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 475 transitions, 2082 flow [2022-11-16 11:06:34,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:34,494 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:34,494 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:34,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:06:34,495 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-16 11:06:34,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:34,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1691353780, now seen corresponding path program 1 times [2022-11-16 11:06:34,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:34,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829436457] [2022-11-16 11:06:34,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:34,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:35,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:35,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829436457] [2022-11-16 11:06:35,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829436457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:35,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:35,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:06:35,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933406307] [2022-11-16 11:06:35,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:35,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:06:35,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:35,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:06:35,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:06:35,028 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 279 [2022-11-16 11:06:35,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 475 transitions, 2082 flow. Second operand has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:35,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:35,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 279 [2022-11-16 11:06:35,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:38,546 INFO L130 PetriNetUnfolder]: 3905/11249 cut-off events. [2022-11-16 11:06:38,546 INFO L131 PetriNetUnfolder]: For 4607/4611 co-relation queries the response was YES. [2022-11-16 11:06:38,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25159 conditions, 11249 events. 3905/11249 cut-off events. For 4607/4611 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 89208 event pairs, 2420 based on Foata normal form. 0/9984 useless extension candidates. Maximal degree in co-relation 25023. Up to 7549 conditions per place. [2022-11-16 11:06:38,623 INFO L137 encePairwiseOnDemand]: 238/279 looper letters, 379 selfloop transitions, 123 changer transitions 0/647 dead transitions. [2022-11-16 11:06:38,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 647 transitions, 3814 flow [2022-11-16 11:06:38,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:06:38,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:06:38,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1174 transitions. [2022-11-16 11:06:38,627 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7013142174432497 [2022-11-16 11:06:38,628 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1174 transitions. [2022-11-16 11:06:38,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1174 transitions. [2022-11-16 11:06:38,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:38,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1174 transitions. [2022-11-16 11:06:38,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.66666666666666) internal successors, (1174), 6 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:38,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:38,639 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:38,639 INFO L175 Difference]: Start difference. First operand has 296 places, 475 transitions, 2082 flow. Second operand 6 states and 1174 transitions. [2022-11-16 11:06:38,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 647 transitions, 3814 flow [2022-11-16 11:06:38,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 647 transitions, 3654 flow, removed 80 selfloop flow, removed 0 redundant places. [2022-11-16 11:06:38,679 INFO L231 Difference]: Finished difference. Result has 305 places, 591 transitions, 3098 flow [2022-11-16 11:06:38,680 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=1920, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3098, PETRI_PLACES=305, PETRI_TRANSITIONS=591} [2022-11-16 11:06:38,681 INFO L288 CegarLoopForPetriNet]: 280 programPoint places, 25 predicate places. [2022-11-16 11:06:38,681 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 591 transitions, 3098 flow [2022-11-16 11:06:38,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:38,682 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:38,683 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:38,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:06:38,683 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-16 11:06:38,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:38,684 INFO L85 PathProgramCache]: Analyzing trace with hash 337100362, now seen corresponding path program 1 times [2022-11-16 11:06:38,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:38,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330989162] [2022-11-16 11:06:38,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:38,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:39,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:39,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:39,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330989162] [2022-11-16 11:06:39,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330989162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:39,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:39,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:06:39,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845572176] [2022-11-16 11:06:39,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:39,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:06:39,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:39,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:06:39,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:06:39,409 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 279 [2022-11-16 11:06:39,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 591 transitions, 3098 flow. Second operand has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 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) [2022-11-16 11:06:39,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:39,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 279 [2022-11-16 11:06:39,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:43,524 INFO L130 PetriNetUnfolder]: 4348/12361 cut-off events. [2022-11-16 11:06:43,524 INFO L131 PetriNetUnfolder]: For 7934/7970 co-relation queries the response was YES. [2022-11-16 11:06:43,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30414 conditions, 12361 events. 4348/12361 cut-off events. For 7934/7970 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 99045 event pairs, 2401 based on Foata normal form. 0/11096 useless extension candidates. Maximal degree in co-relation 30269. Up to 8246 conditions per place. [2022-11-16 11:06:43,643 INFO L137 encePairwiseOnDemand]: 236/279 looper letters, 501 selfloop transitions, 180 changer transitions 0/833 dead transitions. [2022-11-16 11:06:43,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 833 transitions, 5244 flow [2022-11-16 11:06:43,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:06:43,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:06:43,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1251 transitions. [2022-11-16 11:06:43,663 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7473118279569892 [2022-11-16 11:06:43,663 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1251 transitions. [2022-11-16 11:06:43,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1251 transitions. [2022-11-16 11:06:43,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:43,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1251 transitions. [2022-11-16 11:06:43,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.5) internal successors, (1251), 6 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:43,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:43,687 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:43,688 INFO L175 Difference]: Start difference. First operand has 305 places, 591 transitions, 3098 flow. Second operand 6 states and 1251 transitions. [2022-11-16 11:06:43,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 833 transitions, 5244 flow [2022-11-16 11:06:43,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 833 transitions, 4848 flow, removed 198 selfloop flow, removed 0 redundant places. [2022-11-16 11:06:43,763 INFO L231 Difference]: Finished difference. Result has 315 places, 758 transitions, 4098 flow [2022-11-16 11:06:43,764 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2714, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4098, PETRI_PLACES=315, PETRI_TRANSITIONS=758} [2022-11-16 11:06:43,765 INFO L288 CegarLoopForPetriNet]: 280 programPoint places, 35 predicate places. [2022-11-16 11:06:43,766 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 758 transitions, 4098 flow [2022-11-16 11:06:43,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 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) [2022-11-16 11:06:43,767 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:43,767 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:43,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:06:43,767 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-16 11:06:43,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:43,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1164186063, now seen corresponding path program 1 times [2022-11-16 11:06:43,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:43,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956547674] [2022-11-16 11:06:43,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:43,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:44,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:44,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:44,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956547674] [2022-11-16 11:06:44,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956547674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:44,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:44,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:06:44,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192295209] [2022-11-16 11:06:44,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:44,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:06:44,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:44,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:06:44,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:06:44,355 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 279 [2022-11-16 11:06:44,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 758 transitions, 4098 flow. Second operand has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 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) [2022-11-16 11:06:44,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:44,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 279 [2022-11-16 11:06:44,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:49,268 INFO L130 PetriNetUnfolder]: 4713/13236 cut-off events. [2022-11-16 11:06:49,268 INFO L131 PetriNetUnfolder]: For 12226/12386 co-relation queries the response was YES. [2022-11-16 11:06:49,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37022 conditions, 13236 events. 4713/13236 cut-off events. For 12226/12386 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 107030 event pairs, 2343 based on Foata normal form. 0/12018 useless extension candidates. Maximal degree in co-relation 36872. Up to 8882 conditions per place. [2022-11-16 11:06:49,373 INFO L137 encePairwiseOnDemand]: 236/279 looper letters, 667 selfloop transitions, 180 changer transitions 0/1000 dead transitions. [2022-11-16 11:06:49,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 1000 transitions, 6870 flow [2022-11-16 11:06:49,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:06:49,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:06:49,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1251 transitions. [2022-11-16 11:06:49,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7473118279569892 [2022-11-16 11:06:49,387 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1251 transitions. [2022-11-16 11:06:49,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1251 transitions. [2022-11-16 11:06:49,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:49,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1251 transitions. [2022-11-16 11:06:49,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.5) internal successors, (1251), 6 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:49,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:49,398 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:49,398 INFO L175 Difference]: Start difference. First operand has 315 places, 758 transitions, 4098 flow. Second operand 6 states and 1251 transitions. [2022-11-16 11:06:49,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 1000 transitions, 6870 flow [2022-11-16 11:06:49,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 1000 transitions, 6816 flow, removed 27 selfloop flow, removed 0 redundant places. [2022-11-16 11:06:49,496 INFO L231 Difference]: Finished difference. Result has 325 places, 925 transitions, 5734 flow [2022-11-16 11:06:49,497 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=4044, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=758, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=686, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5734, PETRI_PLACES=325, PETRI_TRANSITIONS=925} [2022-11-16 11:06:49,501 INFO L288 CegarLoopForPetriNet]: 280 programPoint places, 45 predicate places. [2022-11-16 11:06:49,501 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 925 transitions, 5734 flow [2022-11-16 11:06:49,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 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) [2022-11-16 11:06:49,502 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:49,502 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:49,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:06:49,503 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-16 11:06:49,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:49,503 INFO L85 PathProgramCache]: Analyzing trace with hash -330490993, now seen corresponding path program 1 times [2022-11-16 11:06:49,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:49,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78308434] [2022-11-16 11:06:49,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:49,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:50,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:50,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78308434] [2022-11-16 11:06:50,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78308434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:50,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:50,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:06:50,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860253475] [2022-11-16 11:06:50,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:50,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:06:50,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:50,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:06:50,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:06:50,706 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 279 [2022-11-16 11:06:50,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 925 transitions, 5734 flow. Second operand has 15 states, 15 states have (on average 118.73333333333333) internal successors, (1781), 15 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:50,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:50,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 279 [2022-11-16 11:06:50,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:59,958 INFO L130 PetriNetUnfolder]: 6484/17043 cut-off events. [2022-11-16 11:06:59,958 INFO L131 PetriNetUnfolder]: For 21402/21460 co-relation queries the response was YES. [2022-11-16 11:07:00,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52823 conditions, 17043 events. 6484/17043 cut-off events. For 21402/21460 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 138030 event pairs, 2035 based on Foata normal form. 32/15822 useless extension candidates. Maximal degree in co-relation 52654. Up to 11125 conditions per place. [2022-11-16 11:07:00,109 INFO L137 encePairwiseOnDemand]: 225/279 looper letters, 1255 selfloop transitions, 273 changer transitions 1/1646 dead transitions. [2022-11-16 11:07:00,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 1646 transitions, 12492 flow [2022-11-16 11:07:00,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-16 11:07:00,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-11-16 11:07:00,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 4962 transitions. [2022-11-16 11:07:00,129 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5081413210445469 [2022-11-16 11:07:00,129 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 4962 transitions. [2022-11-16 11:07:00,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 4962 transitions. [2022-11-16 11:07:00,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:00,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 4962 transitions. [2022-11-16 11:07:00,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 141.77142857142857) internal successors, (4962), 35 states have internal predecessors, (4962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:00,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 279.0) internal successors, (10044), 36 states have internal predecessors, (10044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:00,173 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 279.0) internal successors, (10044), 36 states have internal predecessors, (10044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:00,173 INFO L175 Difference]: Start difference. First operand has 325 places, 925 transitions, 5734 flow. Second operand 35 states and 4962 transitions. [2022-11-16 11:07:00,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 1646 transitions, 12492 flow [2022-11-16 11:07:00,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 1646 transitions, 12132 flow, removed 180 selfloop flow, removed 0 redundant places. [2022-11-16 11:07:00,386 INFO L231 Difference]: Finished difference. Result has 387 places, 1035 transitions, 7133 flow [2022-11-16 11:07:00,387 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=5374, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=925, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=705, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=7133, PETRI_PLACES=387, PETRI_TRANSITIONS=1035} [2022-11-16 11:07:00,388 INFO L288 CegarLoopForPetriNet]: 280 programPoint places, 107 predicate places. [2022-11-16 11:07:00,389 INFO L495 AbstractCegarLoop]: Abstraction has has 387 places, 1035 transitions, 7133 flow [2022-11-16 11:07:00,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 118.73333333333333) internal successors, (1781), 15 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:00,390 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:00,390 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:00,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:07:00,391 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-16 11:07:00,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:00,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1241181733, now seen corresponding path program 2 times [2022-11-16 11:07:00,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:00,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922537433] [2022-11-16 11:07:00,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:00,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:01,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:01,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:01,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922537433] [2022-11-16 11:07:01,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922537433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:01,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:01,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:07:01,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203355705] [2022-11-16 11:07:01,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:01,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:07:01,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:01,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:07:01,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:07:01,586 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 279 [2022-11-16 11:07:01,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 1035 transitions, 7133 flow. Second operand has 15 states, 15 states have (on average 118.73333333333333) internal successors, (1781), 15 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:01,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:01,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 279 [2022-11-16 11:07:01,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:18,779 INFO L130 PetriNetUnfolder]: 12440/32055 cut-off events. [2022-11-16 11:07:18,779 INFO L131 PetriNetUnfolder]: For 56291/56418 co-relation queries the response was YES. [2022-11-16 11:07:19,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106705 conditions, 32055 events. 12440/32055 cut-off events. For 56291/56418 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 293944 event pairs, 699 based on Foata normal form. 54/29659 useless extension candidates. Maximal degree in co-relation 106507. Up to 6583 conditions per place. [2022-11-16 11:07:19,244 INFO L137 encePairwiseOnDemand]: 224/279 looper letters, 2378 selfloop transitions, 352 changer transitions 1/2848 dead transitions. [2022-11-16 11:07:19,244 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 2848 transitions, 24642 flow [2022-11-16 11:07:19,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-16 11:07:19,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-16 11:07:19,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 6116 transitions. [2022-11-16 11:07:19,263 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5219320703191671 [2022-11-16 11:07:19,264 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 6116 transitions. [2022-11-16 11:07:19,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 6116 transitions. [2022-11-16 11:07:19,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:19,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 6116 transitions. [2022-11-16 11:07:19,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 145.61904761904762) internal successors, (6116), 42 states have internal predecessors, (6116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:19,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 279.0) internal successors, (11997), 43 states have internal predecessors, (11997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:19,312 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 279.0) internal successors, (11997), 43 states have internal predecessors, (11997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:19,313 INFO L175 Difference]: Start difference. First operand has 387 places, 1035 transitions, 7133 flow. Second operand 42 states and 6116 transitions. [2022-11-16 11:07:19,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 2848 transitions, 24642 flow [2022-11-16 11:07:19,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 2848 transitions, 24522 flow, removed 60 selfloop flow, removed 0 redundant places. [2022-11-16 11:07:19,955 INFO L231 Difference]: Finished difference. Result has 456 places, 1327 transitions, 11394 flow [2022-11-16 11:07:19,957 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=7031, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1035, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=777, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=11394, PETRI_PLACES=456, PETRI_TRANSITIONS=1327} [2022-11-16 11:07:19,958 INFO L288 CegarLoopForPetriNet]: 280 programPoint places, 176 predicate places. [2022-11-16 11:07:19,958 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 1327 transitions, 11394 flow [2022-11-16 11:07:19,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 118.73333333333333) internal successors, (1781), 15 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:19,960 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:19,960 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:19,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:07:19,961 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-16 11:07:19,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:19,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1868802383, now seen corresponding path program 1 times [2022-11-16 11:07:19,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:19,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242680859] [2022-11-16 11:07:19,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:19,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:20,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:20,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:20,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242680859] [2022-11-16 11:07:20,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242680859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:20,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:20,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:07:20,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069804600] [2022-11-16 11:07:20,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:20,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:07:20,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:20,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:07:20,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:07:20,857 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 279 [2022-11-16 11:07:20,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 1327 transitions, 11394 flow. Second operand has 15 states, 15 states have (on average 116.86666666666666) internal successors, (1753), 15 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:20,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:20,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 279 [2022-11-16 11:07:20,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:48,002 INFO L130 PetriNetUnfolder]: 18062/47533 cut-off events. [2022-11-16 11:07:48,002 INFO L131 PetriNetUnfolder]: For 109951/110102 co-relation queries the response was YES. [2022-11-16 11:07:48,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164999 conditions, 47533 events. 18062/47533 cut-off events. For 109951/110102 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 474869 event pairs, 4234 based on Foata normal form. 48/43928 useless extension candidates. Maximal degree in co-relation 164895. Up to 22204 conditions per place. [2022-11-16 11:07:49,071 INFO L137 encePairwiseOnDemand]: 230/279 looper letters, 2676 selfloop transitions, 288 changer transitions 2/3098 dead transitions. [2022-11-16 11:07:49,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 3098 transitions, 30446 flow [2022-11-16 11:07:49,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:07:49,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-16 11:07:49,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3904 transitions. [2022-11-16 11:07:49,080 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5830346475507766 [2022-11-16 11:07:49,081 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3904 transitions. [2022-11-16 11:07:49,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3904 transitions. [2022-11-16 11:07:49,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:49,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3904 transitions. [2022-11-16 11:07:49,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 162.66666666666666) internal successors, (3904), 24 states have internal predecessors, (3904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:49,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 279.0) internal successors, (6975), 25 states have internal predecessors, (6975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:49,106 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 279.0) internal successors, (6975), 25 states have internal predecessors, (6975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:49,107 INFO L175 Difference]: Start difference. First operand has 456 places, 1327 transitions, 11394 flow. Second operand 24 states and 3904 transitions. [2022-11-16 11:07:49,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 3098 transitions, 30446 flow [2022-11-16 11:07:50,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 3098 transitions, 30227 flow, removed 83 selfloop flow, removed 2 redundant places. [2022-11-16 11:07:50,605 INFO L231 Difference]: Finished difference. Result has 488 places, 1539 transitions, 14245 flow [2022-11-16 11:07:50,606 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=11231, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1089, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=14245, PETRI_PLACES=488, PETRI_TRANSITIONS=1539} [2022-11-16 11:07:50,607 INFO L288 CegarLoopForPetriNet]: 280 programPoint places, 208 predicate places. [2022-11-16 11:07:50,608 INFO L495 AbstractCegarLoop]: Abstraction has has 488 places, 1539 transitions, 14245 flow [2022-11-16 11:07:50,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 116.86666666666666) internal successors, (1753), 15 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:50,609 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:50,609 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:50,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:07:50,610 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-16 11:07:50,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:50,610 INFO L85 PathProgramCache]: Analyzing trace with hash 755556931, now seen corresponding path program 3 times [2022-11-16 11:07:50,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:50,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007020330] [2022-11-16 11:07:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:50,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:51,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:51,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:51,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007020330] [2022-11-16 11:07:51,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007020330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:51,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:51,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:07:51,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959253688] [2022-11-16 11:07:51,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:51,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:07:51,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:51,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:07:51,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:07:51,882 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 279 [2022-11-16 11:07:51,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 1539 transitions, 14245 flow. Second operand has 15 states, 15 states have (on average 118.73333333333333) internal successors, (1781), 15 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:51,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:51,886 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 279 [2022-11-16 11:07:51,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand