./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --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 47fde0ba5912e0415b0c299af0f3ae7b3e6a5b956bf726bb77299079d74126b4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:32:26,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:32:26,181 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:32:26,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:32:26,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:32:26,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:32:26,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:32:26,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:32:26,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:32:26,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:32:26,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:32:26,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:32:26,222 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:32:26,223 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:32:26,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:32:26,224 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:32:26,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:32:26,225 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:32:26,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:32:26,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:32:26,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:32:26,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:32:26,233 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:32:26,234 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:32:26,234 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:32:26,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:32:26,235 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:32:26,235 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:32:26,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:32:26,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:32:26,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:32:26,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:32:26,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:32:26,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:32:26,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:32:26,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:32:26,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:32:26,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:32:26,238 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:32:26,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:32:26,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:32:26,240 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47fde0ba5912e0415b0c299af0f3ae7b3e6a5b956bf726bb77299079d74126b4 [2023-11-23 22:32:26,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:32:26,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:32:26,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:32:26,581 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:32:26,581 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:32:26,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2023-11-23 22:32:29,615 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:32:29,862 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:32:29,863 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2023-11-23 22:32:29,877 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/data/b87bf6b0e/52e10733fdcf429db58f16421d0d87d3/FLAGb80d24c97 [2023-11-23 22:32:29,898 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/data/b87bf6b0e/52e10733fdcf429db58f16421d0d87d3 [2023-11-23 22:32:29,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:32:29,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:32:29,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:32:29,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:32:29,915 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:32:29,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:32:29" (1/1) ... [2023-11-23 22:32:29,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4a1bbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:29, skipping insertion in model container [2023-11-23 22:32:29,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:32:29" (1/1) ... [2023-11-23 22:32:29,947 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:32:30,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:32:30,193 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:32:30,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:32:30,269 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:32:30,269 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:32:30,277 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:32:30,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:30 WrapperNode [2023-11-23 22:32:30,278 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:32:30,280 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:32:30,280 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:32:30,280 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:32:30,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:30" (1/1) ... [2023-11-23 22:32:30,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:30" (1/1) ... [2023-11-23 22:32:30,370 INFO L138 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 274 [2023-11-23 22:32:30,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:32:30,371 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:32:30,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:32:30,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:32:30,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:30" (1/1) ... [2023-11-23 22:32:30,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:30" (1/1) ... [2023-11-23 22:32:30,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:30" (1/1) ... [2023-11-23 22:32:30,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:30" (1/1) ... [2023-11-23 22:32:30,432 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:30" (1/1) ... [2023-11-23 22:32:30,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:30" (1/1) ... [2023-11-23 22:32:30,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:30" (1/1) ... [2023-11-23 22:32:30,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:30" (1/1) ... [2023-11-23 22:32:30,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:32:30,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:32:30,450 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:32:30,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:32:30,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:30" (1/1) ... [2023-11-23 22:32:30,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:32:30,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:32:30,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:32:30,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:32:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:32:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:32:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:32:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:32:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 22:32:30,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 22:32:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 22:32:30,536 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 22:32:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 22:32:30,536 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 22:32:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-23 22:32:30,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-23 22:32:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:32:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-23 22:32:30,539 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-23 22:32:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 22:32:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 22:32:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:32:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:32:30,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:32:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:32:30,543 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:32:30,712 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:32:30,714 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:32:31,634 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:32:32,118 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:32:32,118 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 22:32:32,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:32:32 BoogieIcfgContainer [2023-11-23 22:32:32,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:32:32,123 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:32:32,123 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:32:32,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:32:32,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:32:29" (1/3) ... [2023-11-23 22:32:32,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320f8746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:32:32, skipping insertion in model container [2023-11-23 22:32:32,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:30" (2/3) ... [2023-11-23 22:32:32,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320f8746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:32:32, skipping insertion in model container [2023-11-23 22:32:32,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:32:32" (3/3) ... [2023-11-23 22:32:32,132 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2023-11-23 22:32:32,142 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:32:32,154 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:32:32,154 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2023-11-23 22:32:32,155 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:32:32,282 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-23 22:32:32,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 314 places, 312 transitions, 659 flow [2023-11-23 22:32:32,560 INFO L124 PetriNetUnfolderBase]: 14/307 cut-off events. [2023-11-23 22:32:32,561 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-23 22:32:32,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 307 events. 14/307 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 478 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 228. Up to 2 conditions per place. [2023-11-23 22:32:32,577 INFO L82 GeneralOperation]: Start removeDead. Operand has 314 places, 312 transitions, 659 flow [2023-11-23 22:32:32,593 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 283 places, 280 transitions, 590 flow [2023-11-23 22:32:32,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:32:32,622 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=LoopHeads, 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;@77161dc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:32:32,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 100 error locations. [2023-11-23 22:32:32,638 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:32:32,639 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-11-23 22:32:32,639 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:32:32,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:32:32,640 INFO L208 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] [2023-11-23 22:32:32,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-23 22:32:32,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:32,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1043652791, now seen corresponding path program 1 times [2023-11-23 22:32:32,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:32,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191506179] [2023-11-23 22:32:32,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:32,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:32,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:32,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:32,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191506179] [2023-11-23 22:32:32,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191506179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:32:32,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:32:32,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:32:32,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838070753] [2023-11-23 22:32:32,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:32:32,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:32:32,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:33,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:32:33,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:32:33,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 312 [2023-11-23 22:32:33,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 280 transitions, 590 flow. Second operand has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:33,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:32:33,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 312 [2023-11-23 22:32:33,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:32:35,561 INFO L124 PetriNetUnfolderBase]: 2758/7702 cut-off events. [2023-11-23 22:32:35,562 INFO L125 PetriNetUnfolderBase]: For 682/682 co-relation queries the response was YES. [2023-11-23 22:32:35,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12089 conditions, 7702 events. 2758/7702 cut-off events. For 682/682 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 75030 event pairs, 2248 based on Foata normal form. 4/6858 useless extension candidates. Maximal degree in co-relation 11590. Up to 3600 conditions per place. [2023-11-23 22:32:35,704 INFO L140 encePairwiseOnDemand]: 263/312 looper letters, 28 selfloop transitions, 2 changer transitions 3/233 dead transitions. [2023-11-23 22:32:35,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 233 transitions, 556 flow [2023-11-23 22:32:35,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:32:35,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:32:35,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 773 transitions. [2023-11-23 22:32:35,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8258547008547008 [2023-11-23 22:32:35,730 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 773 transitions. [2023-11-23 22:32:35,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 773 transitions. [2023-11-23 22:32:35,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:32:35,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 773 transitions. [2023-11-23 22:32:35,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 257.6666666666667) internal successors, (773), 3 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:35,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:35,756 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:35,758 INFO L175 Difference]: Start difference. First operand has 283 places, 280 transitions, 590 flow. Second operand 3 states and 773 transitions. [2023-11-23 22:32:35,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 233 transitions, 556 flow [2023-11-23 22:32:35,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 233 transitions, 536 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-11-23 22:32:35,777 INFO L231 Difference]: Finished difference. Result has 236 places, 230 transitions, 474 flow [2023-11-23 22:32:35,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=474, PETRI_PLACES=236, PETRI_TRANSITIONS=230} [2023-11-23 22:32:35,785 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -47 predicate places. [2023-11-23 22:32:35,786 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 230 transitions, 474 flow [2023-11-23 22:32:35,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:35,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:32:35,787 INFO L208 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] [2023-11-23 22:32:35,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:32:35,788 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-23 22:32:35,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:35,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1694198436, now seen corresponding path program 1 times [2023-11-23 22:32:35,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:35,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010447987] [2023-11-23 22:32:35,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:35,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:35,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:35,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:35,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010447987] [2023-11-23 22:32:35,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010447987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:32:35,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:32:35,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:32:35,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990718081] [2023-11-23 22:32:35,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:32:35,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:32:35,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:35,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:32:35,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:32:35,969 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 312 [2023-11-23 22:32:35,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 230 transitions, 474 flow. Second operand has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:35,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:32:35,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 312 [2023-11-23 22:32:35,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:32:39,596 INFO L124 PetriNetUnfolderBase]: 6997/15234 cut-off events. [2023-11-23 22:32:39,596 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2023-11-23 22:32:39,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25097 conditions, 15234 events. 6997/15234 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 772. Compared 148437 event pairs, 5929 based on Foata normal form. 0/14388 useless extension candidates. Maximal degree in co-relation 25063. Up to 9094 conditions per place. [2023-11-23 22:32:39,787 INFO L140 encePairwiseOnDemand]: 305/312 looper letters, 31 selfloop transitions, 1 changer transitions 0/224 dead transitions. [2023-11-23 22:32:39,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 224 transitions, 526 flow [2023-11-23 22:32:39,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:32:39,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:32:39,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 716 transitions. [2023-11-23 22:32:39,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7649572649572649 [2023-11-23 22:32:39,791 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 716 transitions. [2023-11-23 22:32:39,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 716 transitions. [2023-11-23 22:32:39,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:32:39,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 716 transitions. [2023-11-23 22:32:39,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:39,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:39,798 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:39,798 INFO L175 Difference]: Start difference. First operand has 236 places, 230 transitions, 474 flow. Second operand 3 states and 716 transitions. [2023-11-23 22:32:39,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 224 transitions, 526 flow [2023-11-23 22:32:39,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 224 transitions, 522 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:32:39,805 INFO L231 Difference]: Finished difference. Result has 227 places, 224 transitions, 460 flow [2023-11-23 22:32:39,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=227, PETRI_TRANSITIONS=224} [2023-11-23 22:32:39,807 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -56 predicate places. [2023-11-23 22:32:39,807 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 224 transitions, 460 flow [2023-11-23 22:32:39,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:39,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:32:39,808 INFO L208 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] [2023-11-23 22:32:39,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:32:39,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-23 22:32:39,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:39,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1807955111, now seen corresponding path program 1 times [2023-11-23 22:32:39,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:39,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658892767] [2023-11-23 22:32:39,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:39,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:40,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:40,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:40,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658892767] [2023-11-23 22:32:40,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658892767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:32:40,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:32:40,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:32:40,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337913676] [2023-11-23 22:32:40,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:32:40,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:32:40,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:40,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:32:40,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:32:40,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 312 [2023-11-23 22:32:40,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 224 transitions, 460 flow. Second operand has 6 states, 6 states have (on average 212.5) internal successors, (1275), 6 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:40,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:32:40,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 312 [2023-11-23 22:32:40,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:32:42,662 INFO L124 PetriNetUnfolderBase]: 2982/6410 cut-off events. [2023-11-23 22:32:42,662 INFO L125 PetriNetUnfolderBase]: For 49/112 co-relation queries the response was YES. [2023-11-23 22:32:42,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10452 conditions, 6410 events. 2982/6410 cut-off events. For 49/112 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 51859 event pairs, 2489 based on Foata normal form. 0/5753 useless extension candidates. Maximal degree in co-relation 10419. Up to 3917 conditions per place. [2023-11-23 22:32:42,766 INFO L140 encePairwiseOnDemand]: 306/312 looper letters, 47 selfloop transitions, 5 changer transitions 0/223 dead transitions. [2023-11-23 22:32:42,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 223 transitions, 562 flow [2023-11-23 22:32:42,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:32:42,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:32:42,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1319 transitions. [2023-11-23 22:32:42,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7045940170940171 [2023-11-23 22:32:42,773 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1319 transitions. [2023-11-23 22:32:42,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1319 transitions. [2023-11-23 22:32:42,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:32:42,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1319 transitions. [2023-11-23 22:32:42,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 219.83333333333334) internal successors, (1319), 6 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:42,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:42,788 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:42,788 INFO L175 Difference]: Start difference. First operand has 227 places, 224 transitions, 460 flow. Second operand 6 states and 1319 transitions. [2023-11-23 22:32:42,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 223 transitions, 562 flow [2023-11-23 22:32:42,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 223 transitions, 561 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:32:42,795 INFO L231 Difference]: Finished difference. Result has 230 places, 223 transitions, 467 flow [2023-11-23 22:32:42,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=467, PETRI_PLACES=230, PETRI_TRANSITIONS=223} [2023-11-23 22:32:42,798 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -53 predicate places. [2023-11-23 22:32:42,798 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 223 transitions, 467 flow [2023-11-23 22:32:42,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.5) internal successors, (1275), 6 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:42,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:32:42,800 INFO L208 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] [2023-11-23 22:32:42,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:32:42,800 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-23 22:32:42,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:42,801 INFO L85 PathProgramCache]: Analyzing trace with hash -749727835, now seen corresponding path program 1 times [2023-11-23 22:32:42,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:42,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356375777] [2023-11-23 22:32:42,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:42,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:42,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:42,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:42,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356375777] [2023-11-23 22:32:42,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356375777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:32:42,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:32:42,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:32:42,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546677587] [2023-11-23 22:32:42,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:32:42,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:32:42,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:42,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:32:42,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:32:42,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 312 [2023-11-23 22:32:42,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 223 transitions, 467 flow. Second operand has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:42,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:32:42,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 312 [2023-11-23 22:32:42,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:32:43,634 INFO L124 PetriNetUnfolderBase]: 743/2952 cut-off events. [2023-11-23 22:32:43,634 INFO L125 PetriNetUnfolderBase]: For 49/51 co-relation queries the response was YES. [2023-11-23 22:32:43,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4059 conditions, 2952 events. 743/2952 cut-off events. For 49/51 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 24725 event pairs, 597 based on Foata normal form. 0/2704 useless extension candidates. Maximal degree in co-relation 4041. Up to 980 conditions per place. [2023-11-23 22:32:43,673 INFO L140 encePairwiseOnDemand]: 309/312 looper letters, 22 selfloop transitions, 2 changer transitions 0/222 dead transitions. [2023-11-23 22:32:43,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 222 transitions, 513 flow [2023-11-23 22:32:43,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:32:43,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:32:43,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2023-11-23 22:32:43,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7895299145299145 [2023-11-23 22:32:43,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 739 transitions. [2023-11-23 22:32:43,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 739 transitions. [2023-11-23 22:32:43,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:32:43,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 739 transitions. [2023-11-23 22:32:43,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:43,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:43,684 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:43,684 INFO L175 Difference]: Start difference. First operand has 230 places, 223 transitions, 467 flow. Second operand 3 states and 739 transitions. [2023-11-23 22:32:43,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 222 transitions, 513 flow [2023-11-23 22:32:43,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 222 transitions, 503 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:32:43,690 INFO L231 Difference]: Finished difference. Result has 226 places, 222 transitions, 459 flow [2023-11-23 22:32:43,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=459, PETRI_PLACES=226, PETRI_TRANSITIONS=222} [2023-11-23 22:32:43,692 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -57 predicate places. [2023-11-23 22:32:43,692 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 222 transitions, 459 flow [2023-11-23 22:32:43,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:43,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:32:43,694 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:32:43,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:32:43,694 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-23 22:32:43,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:43,695 INFO L85 PathProgramCache]: Analyzing trace with hash -579479088, now seen corresponding path program 1 times [2023-11-23 22:32:43,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:43,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176576343] [2023-11-23 22:32:43,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:43,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:44,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:44,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176576343] [2023-11-23 22:32:44,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176576343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:32:44,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:32:44,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:32:44,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564445406] [2023-11-23 22:32:44,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:32:44,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:32:44,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:44,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:32:44,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:32:44,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 312 [2023-11-23 22:32:44,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 222 transitions, 459 flow. Second operand has 6 states, 6 states have (on average 233.0) internal successors, (1398), 6 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:44,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:32:44,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 312 [2023-11-23 22:32:44,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:32:46,811 INFO L124 PetriNetUnfolderBase]: 5111/9548 cut-off events. [2023-11-23 22:32:46,812 INFO L125 PetriNetUnfolderBase]: For 56/58 co-relation queries the response was YES. [2023-11-23 22:32:46,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16254 conditions, 9548 events. 5111/9548 cut-off events. For 56/58 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 72666 event pairs, 1898 based on Foata normal form. 0/8780 useless extension candidates. Maximal degree in co-relation 16219. Up to 4472 conditions per place. [2023-11-23 22:32:46,973 INFO L140 encePairwiseOnDemand]: 304/312 looper letters, 63 selfloop transitions, 13 changer transitions 0/267 dead transitions. [2023-11-23 22:32:46,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 267 transitions, 706 flow [2023-11-23 22:32:46,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:32:46,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:32:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1463 transitions. [2023-11-23 22:32:46,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.781517094017094 [2023-11-23 22:32:46,980 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1463 transitions. [2023-11-23 22:32:46,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1463 transitions. [2023-11-23 22:32:46,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:32:46,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1463 transitions. [2023-11-23 22:32:46,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 243.83333333333334) internal successors, (1463), 6 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:46,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:46,995 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:46,996 INFO L175 Difference]: Start difference. First operand has 226 places, 222 transitions, 459 flow. Second operand 6 states and 1463 transitions. [2023-11-23 22:32:46,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 267 transitions, 706 flow [2023-11-23 22:32:46,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 267 transitions, 702 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:32:47,004 INFO L231 Difference]: Finished difference. Result has 234 places, 234 transitions, 545 flow [2023-11-23 22:32:47,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=545, PETRI_PLACES=234, PETRI_TRANSITIONS=234} [2023-11-23 22:32:47,006 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -49 predicate places. [2023-11-23 22:32:47,006 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 234 transitions, 545 flow [2023-11-23 22:32:47,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.0) internal successors, (1398), 6 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:47,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:32:47,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:32:47,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:32:47,008 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-23 22:32:47,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:47,009 INFO L85 PathProgramCache]: Analyzing trace with hash -834990245, now seen corresponding path program 1 times [2023-11-23 22:32:47,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:47,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627817746] [2023-11-23 22:32:47,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:47,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:47,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:47,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627817746] [2023-11-23 22:32:47,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627817746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:32:47,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:32:47,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 22:32:47,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527510475] [2023-11-23 22:32:47,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:32:47,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:32:47,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:47,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:32:47,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:32:47,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 312 [2023-11-23 22:32:47,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 234 transitions, 545 flow. Second operand has 7 states, 7 states have (on average 232.57142857142858) internal successors, (1628), 7 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:47,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:32:47,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 312 [2023-11-23 22:32:47,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:32:54,097 INFO L124 PetriNetUnfolderBase]: 13317/28427 cut-off events. [2023-11-23 22:32:54,097 INFO L125 PetriNetUnfolderBase]: For 13481/14581 co-relation queries the response was YES. [2023-11-23 22:32:54,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58315 conditions, 28427 events. 13317/28427 cut-off events. For 13481/14581 co-relation queries the response was YES. Maximal size of possible extension queue 1372. Compared 293307 event pairs, 7581 based on Foata normal form. 301/26916 useless extension candidates. Maximal degree in co-relation 58276. Up to 11963 conditions per place. [2023-11-23 22:32:54,568 INFO L140 encePairwiseOnDemand]: 299/312 looper letters, 73 selfloop transitions, 14 changer transitions 0/279 dead transitions. [2023-11-23 22:32:54,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 279 transitions, 859 flow [2023-11-23 22:32:54,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:32:54,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-23 22:32:54,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2372 transitions. [2023-11-23 22:32:54,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7602564102564102 [2023-11-23 22:32:54,578 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2372 transitions. [2023-11-23 22:32:54,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2372 transitions. [2023-11-23 22:32:54,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:32:54,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2372 transitions. [2023-11-23 22:32:54,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 237.2) internal successors, (2372), 10 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:54,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 312.0) internal successors, (3432), 11 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:54,600 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 312.0) internal successors, (3432), 11 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:54,601 INFO L175 Difference]: Start difference. First operand has 234 places, 234 transitions, 545 flow. Second operand 10 states and 2372 transitions. [2023-11-23 22:32:54,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 279 transitions, 859 flow [2023-11-23 22:32:54,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 279 transitions, 859 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:32:54,753 INFO L231 Difference]: Finished difference. Result has 247 places, 241 transitions, 611 flow [2023-11-23 22:32:54,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=611, PETRI_PLACES=247, PETRI_TRANSITIONS=241} [2023-11-23 22:32:54,757 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -36 predicate places. [2023-11-23 22:32:54,757 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 241 transitions, 611 flow [2023-11-23 22:32:54,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 232.57142857142858) internal successors, (1628), 7 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:54,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:32:54,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:32:54,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:32:54,759 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-23 22:32:54,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:54,760 INFO L85 PathProgramCache]: Analyzing trace with hash -796702111, now seen corresponding path program 1 times [2023-11-23 22:32:54,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:54,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667350160] [2023-11-23 22:32:54,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:54,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:55,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:55,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667350160] [2023-11-23 22:32:55,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667350160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:32:55,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:32:55,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 22:32:55,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156221075] [2023-11-23 22:32:55,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:32:55,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:32:55,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:55,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:32:55,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:32:55,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 312 [2023-11-23 22:32:55,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 241 transitions, 611 flow. Second operand has 7 states, 7 states have (on average 232.57142857142858) internal successors, (1628), 7 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:55,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:32:55,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 312 [2023-11-23 22:32:55,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:32:59,240 INFO L124 PetriNetUnfolderBase]: 8786/17386 cut-off events. [2023-11-23 22:32:59,241 INFO L125 PetriNetUnfolderBase]: For 5676/7011 co-relation queries the response was YES. [2023-11-23 22:32:59,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34695 conditions, 17386 events. 8786/17386 cut-off events. For 5676/7011 co-relation queries the response was YES. Maximal size of possible extension queue 1135. Compared 160603 event pairs, 6247 based on Foata normal form. 60/16288 useless extension candidates. Maximal degree in co-relation 34648. Up to 10223 conditions per place. [2023-11-23 22:32:59,459 INFO L140 encePairwiseOnDemand]: 299/312 looper letters, 63 selfloop transitions, 14 changer transitions 0/271 dead transitions. [2023-11-23 22:32:59,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 271 transitions, 839 flow [2023-11-23 22:32:59,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:32:59,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-23 22:32:59,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2370 transitions. [2023-11-23 22:32:59,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7596153846153846 [2023-11-23 22:32:59,469 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2370 transitions. [2023-11-23 22:32:59,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2370 transitions. [2023-11-23 22:32:59,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:32:59,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2370 transitions. [2023-11-23 22:32:59,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 237.0) internal successors, (2370), 10 states have internal predecessors, (2370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:59,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 312.0) internal successors, (3432), 11 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:59,490 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 312.0) internal successors, (3432), 11 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:59,490 INFO L175 Difference]: Start difference. First operand has 247 places, 241 transitions, 611 flow. Second operand 10 states and 2370 transitions. [2023-11-23 22:32:59,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 271 transitions, 839 flow [2023-11-23 22:32:59,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 271 transitions, 835 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:32:59,518 INFO L231 Difference]: Finished difference. Result has 257 places, 243 transitions, 652 flow [2023-11-23 22:32:59,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=652, PETRI_PLACES=257, PETRI_TRANSITIONS=243} [2023-11-23 22:32:59,520 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -26 predicate places. [2023-11-23 22:32:59,520 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 243 transitions, 652 flow [2023-11-23 22:32:59,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 232.57142857142858) internal successors, (1628), 7 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:59,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:32:59,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:32:59,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:32:59,522 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-23 22:32:59,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:59,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1487521122, now seen corresponding path program 1 times [2023-11-23 22:32:59,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:59,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887337210] [2023-11-23 22:32:59,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:59,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:00,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:00,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887337210] [2023-11-23 22:33:00,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887337210] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:00,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:00,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:33:00,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675577421] [2023-11-23 22:33:00,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:00,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:33:00,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:00,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:33:00,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:33:00,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 312 [2023-11-23 22:33:00,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 243 transitions, 652 flow. Second operand has 6 states, 6 states have (on average 233.5) internal successors, (1401), 6 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:00,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:33:00,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 312 [2023-11-23 22:33:00,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:33:03,664 INFO L124 PetriNetUnfolderBase]: 5363/13285 cut-off events. [2023-11-23 22:33:03,664 INFO L125 PetriNetUnfolderBase]: For 6742/6959 co-relation queries the response was YES. [2023-11-23 22:33:03,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27098 conditions, 13285 events. 5363/13285 cut-off events. For 6742/6959 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 123834 event pairs, 2084 based on Foata normal form. 2/12528 useless extension candidates. Maximal degree in co-relation 27047. Up to 5770 conditions per place. [2023-11-23 22:33:03,908 INFO L140 encePairwiseOnDemand]: 304/312 looper letters, 58 selfloop transitions, 21 changer transitions 0/283 dead transitions. [2023-11-23 22:33:03,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 283 transitions, 942 flow [2023-11-23 22:33:03,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:33:03,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:33:03,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1450 transitions. [2023-11-23 22:33:03,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7745726495726496 [2023-11-23 22:33:03,914 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1450 transitions. [2023-11-23 22:33:03,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1450 transitions. [2023-11-23 22:33:03,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:33:03,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1450 transitions. [2023-11-23 22:33:03,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 241.66666666666666) internal successors, (1450), 6 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:03,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:03,938 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:03,938 INFO L175 Difference]: Start difference. First operand has 257 places, 243 transitions, 652 flow. Second operand 6 states and 1450 transitions. [2023-11-23 22:33:03,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 283 transitions, 942 flow [2023-11-23 22:33:04,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 283 transitions, 921 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-23 22:33:04,323 INFO L231 Difference]: Finished difference. Result has 260 places, 263 transitions, 821 flow [2023-11-23 22:33:04,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=821, PETRI_PLACES=260, PETRI_TRANSITIONS=263} [2023-11-23 22:33:04,328 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -23 predicate places. [2023-11-23 22:33:04,328 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 263 transitions, 821 flow [2023-11-23 22:33:04,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.5) internal successors, (1401), 6 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:04,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:33:04,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:04,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 22:33:04,330 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-23 22:33:04,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:04,331 INFO L85 PathProgramCache]: Analyzing trace with hash 2090708427, now seen corresponding path program 1 times [2023-11-23 22:33:04,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:04,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338467090] [2023-11-23 22:33:04,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:04,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:33:05,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:05,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338467090] [2023-11-23 22:33:05,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338467090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:05,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:05,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 22:33:05,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411833634] [2023-11-23 22:33:05,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:05,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 22:33:05,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:05,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 22:33:05,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-23 22:33:06,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 312 [2023-11-23 22:33:06,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 263 transitions, 821 flow. Second operand has 13 states, 13 states have (on average 222.15384615384616) internal successors, (2888), 13 states have internal predecessors, (2888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:06,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:33:06,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 312 [2023-11-23 22:33:06,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:33:10,935 INFO L124 PetriNetUnfolderBase]: 6753/17767 cut-off events. [2023-11-23 22:33:10,935 INFO L125 PetriNetUnfolderBase]: For 11209/11789 co-relation queries the response was YES. [2023-11-23 22:33:11,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39262 conditions, 17767 events. 6753/17767 cut-off events. For 11209/11789 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 180501 event pairs, 648 based on Foata normal form. 672/18243 useless extension candidates. Maximal degree in co-relation 39207. Up to 3774 conditions per place. [2023-11-23 22:33:11,224 INFO L140 encePairwiseOnDemand]: 298/312 looper letters, 89 selfloop transitions, 17 changer transitions 0/298 dead transitions. [2023-11-23 22:33:11,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 298 transitions, 1133 flow [2023-11-23 22:33:11,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 22:33:11,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-23 22:33:11,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3378 transitions. [2023-11-23 22:33:11,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7217948717948718 [2023-11-23 22:33:11,237 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3378 transitions. [2023-11-23 22:33:11,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3378 transitions. [2023-11-23 22:33:11,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:33:11,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3378 transitions. [2023-11-23 22:33:11,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 225.2) internal successors, (3378), 15 states have internal predecessors, (3378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:11,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 312.0) internal successors, (4992), 16 states have internal predecessors, (4992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:11,272 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 312.0) internal successors, (4992), 16 states have internal predecessors, (4992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:11,272 INFO L175 Difference]: Start difference. First operand has 260 places, 263 transitions, 821 flow. Second operand 15 states and 3378 transitions. [2023-11-23 22:33:11,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 298 transitions, 1133 flow [2023-11-23 22:33:11,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 298 transitions, 1121 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:33:11,783 INFO L231 Difference]: Finished difference. Result has 272 places, 262 transitions, 839 flow [2023-11-23 22:33:11,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=839, PETRI_PLACES=272, PETRI_TRANSITIONS=262} [2023-11-23 22:33:11,785 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -11 predicate places. [2023-11-23 22:33:11,785 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 262 transitions, 839 flow [2023-11-23 22:33:11,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 222.15384615384616) internal successors, (2888), 13 states have internal predecessors, (2888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:11,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:33:11,786 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:11,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 22:33:11,787 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-23 22:33:11,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:11,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1538208113, now seen corresponding path program 1 times [2023-11-23 22:33:11,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:11,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906387154] [2023-11-23 22:33:11,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:11,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:12,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:12,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:12,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906387154] [2023-11-23 22:33:12,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906387154] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:12,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:12,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:33:12,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362725524] [2023-11-23 22:33:12,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:12,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:33:12,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:12,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:33:12,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:33:13,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 312 [2023-11-23 22:33:13,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 262 transitions, 839 flow. Second operand has 6 states, 6 states have (on average 234.0) internal successors, (1404), 6 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:13,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:33:13,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 312 [2023-11-23 22:33:13,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:33:16,152 INFO L124 PetriNetUnfolderBase]: 5191/13343 cut-off events. [2023-11-23 22:33:16,152 INFO L125 PetriNetUnfolderBase]: For 16248/16594 co-relation queries the response was YES. [2023-11-23 22:33:16,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30789 conditions, 13343 events. 5191/13343 cut-off events. For 16248/16594 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 125057 event pairs, 2090 based on Foata normal form. 6/12492 useless extension candidates. Maximal degree in co-relation 30734. Up to 5956 conditions per place. [2023-11-23 22:33:16,415 INFO L140 encePairwiseOnDemand]: 304/312 looper letters, 61 selfloop transitions, 29 changer transitions 0/297 dead transitions. [2023-11-23 22:33:16,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 297 transitions, 1228 flow [2023-11-23 22:33:16,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:33:16,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:33:16,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1437 transitions. [2023-11-23 22:33:16,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7676282051282052 [2023-11-23 22:33:16,421 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1437 transitions. [2023-11-23 22:33:16,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1437 transitions. [2023-11-23 22:33:16,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:33:16,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1437 transitions. [2023-11-23 22:33:16,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 239.5) internal successors, (1437), 6 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:16,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:16,432 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:16,432 INFO L175 Difference]: Start difference. First operand has 272 places, 262 transitions, 839 flow. Second operand 6 states and 1437 transitions. [2023-11-23 22:33:16,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 297 transitions, 1228 flow [2023-11-23 22:33:16,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 297 transitions, 1196 flow, removed 0 selfloop flow, removed 13 redundant places. [2023-11-23 22:33:16,555 INFO L231 Difference]: Finished difference. Result has 269 places, 290 transitions, 1137 flow [2023-11-23 22:33:16,556 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1137, PETRI_PLACES=269, PETRI_TRANSITIONS=290} [2023-11-23 22:33:16,557 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -14 predicate places. [2023-11-23 22:33:16,557 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 290 transitions, 1137 flow [2023-11-23 22:33:16,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 234.0) internal successors, (1404), 6 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:16,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:33:16,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:16,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 22:33:16,558 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-23 22:33:16,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:16,559 INFO L85 PathProgramCache]: Analyzing trace with hash 374273529, now seen corresponding path program 1 times [2023-11-23 22:33:16,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:16,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029993242] [2023-11-23 22:33:16,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:16,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:16,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:16,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:16,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029993242] [2023-11-23 22:33:16,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029993242] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:33:16,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543808001] [2023-11-23 22:33:16,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:16,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:33:16,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:33:16,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:33:16,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be968f63-cc20-4077-b923-aa7fedb6e1ef/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:33:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:17,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:33:17,014 INFO L285 TraceCheckSpWp]: Computing forward predicates...