./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme --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 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:45:52,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:45:52,710 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:45:52,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:45:52,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:45:52,763 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:45:52,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:45:52,764 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:45:52,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:45:52,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:45:52,772 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:45:52,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:45:52,773 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:45:52,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:45:52,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:45:52,776 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:45:52,776 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:45:52,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:45:52,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:45:52,778 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:45:52,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:45:52,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:45:52,779 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:45:52,780 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:45:52,780 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:45:52,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:45:52,781 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:45:52,782 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:45:52,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:45:52,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:45:52,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:45:52,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:45:52,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:45:52,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:45:52,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:45:52,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:45:52,786 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:45:52,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:45:52,787 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:45:52,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:45:52,787 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:45:52,788 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_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 [2023-11-26 11:45:53,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:45:53,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:45:53,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:45:53,119 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:45:53,119 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:45:53,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2023-11-26 11:45:56,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:45:56,576 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:45:56,577 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2023-11-26 11:45:56,587 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme/data/618346726/79b15a1085b149b5a2f69d4134668cd9/FLAG5fc8938c0 [2023-11-26 11:45:56,601 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme/data/618346726/79b15a1085b149b5a2f69d4134668cd9 [2023-11-26 11:45:56,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:45:56,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:45:56,607 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:45:56,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:45:56,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:45:56,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:45:56" (1/1) ... [2023-11-26 11:45:56,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b560246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:56, skipping insertion in model container [2023-11-26 11:45:56,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:45:56" (1/1) ... [2023-11-26 11:45:56,654 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:45:56,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:45:56,923 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:45:57,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:45:57,044 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:45:57,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:57 WrapperNode [2023-11-26 11:45:57,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:45:57,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:45:57,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:45:57,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:45:57,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:57" (1/1) ... [2023-11-26 11:45:57,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:57" (1/1) ... [2023-11-26 11:45:57,203 INFO L138 Inliner]: procedures = 26, calls = 77, calls flagged for inlining = 29, calls inlined = 43, statements flattened = 1343 [2023-11-26 11:45:57,203 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:45:57,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:45:57,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:45:57,205 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:45:57,217 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:57" (1/1) ... [2023-11-26 11:45:57,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:57" (1/1) ... [2023-11-26 11:45:57,247 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:57" (1/1) ... [2023-11-26 11:45:57,247 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:57" (1/1) ... [2023-11-26 11:45:57,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:57" (1/1) ... [2023-11-26 11:45:57,392 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:57" (1/1) ... [2023-11-26 11:45:57,397 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:57" (1/1) ... [2023-11-26 11:45:57,412 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:57" (1/1) ... [2023-11-26 11:45:57,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:45:57,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:45:57,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:45:57,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:45:57,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:57" (1/1) ... [2023-11-26 11:45:57,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:45:57,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:57,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:45:57,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f39fb42-c15b-4e13-8caa-374273057d00/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:45:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:45:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:45:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:45:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:45:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:45:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:45:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:45:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:45:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 11:45:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 11:45:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:45:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:45:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:45:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:45:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:45:57,536 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:45:57,781 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:45:57,783 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:45:59,582 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:45:59,615 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:45:59,615 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-26 11:45:59,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:45:59 BoogieIcfgContainer [2023-11-26 11:45:59,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:45:59,620 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:45:59,620 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:45:59,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:45:59,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:45:56" (1/3) ... [2023-11-26 11:45:59,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eff254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:45:59, skipping insertion in model container [2023-11-26 11:45:59,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:57" (2/3) ... [2023-11-26 11:45:59,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eff254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:45:59, skipping insertion in model container [2023-11-26 11:45:59,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:45:59" (3/3) ... [2023-11-26 11:45:59,627 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2023-11-26 11:45:59,637 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:45:59,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:45:59,648 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 230 error locations. [2023-11-26 11:45:59,649 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:45:59,979 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 11:46:00,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1694 places, 1795 transitions, 3611 flow [2023-11-26 11:46:02,147 INFO L124 PetriNetUnfolderBase]: 111/1792 cut-off events. [2023-11-26 11:46:02,148 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 11:46:02,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1805 conditions, 1792 events. 111/1792 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7862 event pairs, 0 based on Foata normal form. 0/1451 useless extension candidates. Maximal degree in co-relation 1391. Up to 2 conditions per place. [2023-11-26 11:46:02,290 INFO L82 GeneralOperation]: Start removeDead. Operand has 1694 places, 1795 transitions, 3611 flow [2023-11-26 11:46:02,403 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1665 places, 1763 transitions, 3544 flow [2023-11-26 11:46:02,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:46:02,429 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;@431c725c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:46:02,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 431 error locations. [2023-11-26 11:46:02,445 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:46:02,454 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2023-11-26 11:46:02,455 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:46:02,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:46:02,456 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] [2023-11-26 11:46:02,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-26 11:46:02,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:02,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1105597799, now seen corresponding path program 1 times [2023-11-26 11:46:02,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:02,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857920803] [2023-11-26 11:46:02,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:02,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:02,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:46:02,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:02,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857920803] [2023-11-26 11:46:02,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857920803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:02,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:02,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:46:02,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777324609] [2023-11-26 11:46:02,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:02,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:46:02,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:02,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:46:02,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:46:02,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1742 out of 1795 [2023-11-26 11:46:02,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1665 places, 1763 transitions, 3544 flow. Second operand has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:02,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:46:02,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1742 of 1795 [2023-11-26 11:46:02,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:46:06,310 INFO L124 PetriNetUnfolderBase]: 171/3558 cut-off events. [2023-11-26 11:46:06,310 INFO L125 PetriNetUnfolderBase]: For 19/21 co-relation queries the response was YES. [2023-11-26 11:46:06,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3607 conditions, 3558 events. 171/3558 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 22201 event pairs, 7 based on Foata normal form. 120/2952 useless extension candidates. Maximal degree in co-relation 3205. Up to 25 conditions per place. [2023-11-26 11:46:06,562 INFO L140 encePairwiseOnDemand]: 1756/1795 looper letters, 11 selfloop transitions, 2 changer transitions 6/1726 dead transitions. [2023-11-26 11:46:06,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1666 places, 1726 transitions, 3496 flow [2023-11-26 11:46:06,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:46:06,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:46:06,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5276 transitions. [2023-11-26 11:46:06,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9797585886722378 [2023-11-26 11:46:06,603 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5276 transitions. [2023-11-26 11:46:06,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5276 transitions. [2023-11-26 11:46:06,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:46:06,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5276 transitions. [2023-11-26 11:46:06,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1758.6666666666667) internal successors, (5276), 3 states have internal predecessors, (5276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:06,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:06,670 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:06,672 INFO L175 Difference]: Start difference. First operand has 1665 places, 1763 transitions, 3544 flow. Second operand 3 states and 5276 transitions. [2023-11-26 11:46:06,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1666 places, 1726 transitions, 3496 flow [2023-11-26 11:46:06,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1660 places, 1726 transitions, 3484 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 11:46:06,730 INFO L231 Difference]: Finished difference. Result has 1660 places, 1720 transitions, 3450 flow [2023-11-26 11:46:06,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3458, PETRI_DIFFERENCE_MINUEND_PLACES=1658, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1726, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1724, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3450, PETRI_PLACES=1660, PETRI_TRANSITIONS=1720} [2023-11-26 11:46:06,740 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -5 predicate places. [2023-11-26 11:46:06,740 INFO L495 AbstractCegarLoop]: Abstraction has has 1660 places, 1720 transitions, 3450 flow [2023-11-26 11:46:06,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:06,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:46:06,745 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] [2023-11-26 11:46:06,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:46:06,746 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-26 11:46:06,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:06,747 INFO L85 PathProgramCache]: Analyzing trace with hash -341135342, now seen corresponding path program 1 times [2023-11-26 11:46:06,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:06,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359858616] [2023-11-26 11:46:06,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:06,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:46:06,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:06,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359858616] [2023-11-26 11:46:06,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359858616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:06,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:06,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:46:06,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828966950] [2023-11-26 11:46:06,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:06,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:46:06,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:06,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:46:06,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:46:06,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1742 out of 1795 [2023-11-26 11:46:06,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1660 places, 1720 transitions, 3450 flow. Second operand has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:06,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:46:06,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1742 of 1795 [2023-11-26 11:46:06,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:46:09,507 INFO L124 PetriNetUnfolderBase]: 171/3551 cut-off events. [2023-11-26 11:46:09,508 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2023-11-26 11:46:09,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3589 conditions, 3551 events. 171/3551 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 23255 event pairs, 7 based on Foata normal form. 0/2832 useless extension candidates. Maximal degree in co-relation 3543. Up to 25 conditions per place. [2023-11-26 11:46:09,720 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 11 selfloop transitions, 2 changer transitions 0/1719 dead transitions. [2023-11-26 11:46:09,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1655 places, 1719 transitions, 3474 flow [2023-11-26 11:46:09,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:46:09,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:46:09,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5240 transitions. [2023-11-26 11:46:09,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9730733519034355 [2023-11-26 11:46:09,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5240 transitions. [2023-11-26 11:46:09,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5240 transitions. [2023-11-26 11:46:09,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:46:09,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5240 transitions. [2023-11-26 11:46:09,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1746.6666666666667) internal successors, (5240), 3 states have internal predecessors, (5240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:09,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:09,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:09,786 INFO L175 Difference]: Start difference. First operand has 1660 places, 1720 transitions, 3450 flow. Second operand 3 states and 5240 transitions. [2023-11-26 11:46:09,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1655 places, 1719 transitions, 3474 flow [2023-11-26 11:46:09,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1653 places, 1719 transitions, 3470 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:46:09,824 INFO L231 Difference]: Finished difference. Result has 1653 places, 1719 transitions, 3448 flow [2023-11-26 11:46:09,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3444, PETRI_DIFFERENCE_MINUEND_PLACES=1651, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1717, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3448, PETRI_PLACES=1653, PETRI_TRANSITIONS=1719} [2023-11-26 11:46:09,828 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -12 predicate places. [2023-11-26 11:46:09,829 INFO L495 AbstractCegarLoop]: Abstraction has has 1653 places, 1719 transitions, 3448 flow [2023-11-26 11:46:09,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:09,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:46:09,834 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] [2023-11-26 11:46:09,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:46:09,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-26 11:46:09,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:09,835 INFO L85 PathProgramCache]: Analyzing trace with hash 149130328, now seen corresponding path program 1 times [2023-11-26 11:46:09,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:09,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286187591] [2023-11-26 11:46:09,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:09,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:46:09,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:09,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286187591] [2023-11-26 11:46:09,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286187591] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:09,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:09,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:46:09,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781105170] [2023-11-26 11:46:09,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:09,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:46:09,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:09,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:46:09,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:46:09,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1742 out of 1795 [2023-11-26 11:46:09,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1653 places, 1719 transitions, 3448 flow. Second operand has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:09,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:46:09,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1742 of 1795 [2023-11-26 11:46:09,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:46:12,443 INFO L124 PetriNetUnfolderBase]: 123/2647 cut-off events. [2023-11-26 11:46:12,443 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-26 11:46:12,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2680 conditions, 2647 events. 123/2647 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 14879 event pairs, 5 based on Foata normal form. 0/2125 useless extension candidates. Maximal degree in co-relation 2626. Up to 22 conditions per place. [2023-11-26 11:46:12,672 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 11 selfloop transitions, 2 changer transitions 0/1718 dead transitions. [2023-11-26 11:46:12,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1654 places, 1718 transitions, 3472 flow [2023-11-26 11:46:12,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:46:12,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:46:12,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5240 transitions. [2023-11-26 11:46:12,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9730733519034355 [2023-11-26 11:46:12,693 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5240 transitions. [2023-11-26 11:46:12,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5240 transitions. [2023-11-26 11:46:12,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:46:12,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5240 transitions. [2023-11-26 11:46:12,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1746.6666666666667) internal successors, (5240), 3 states have internal predecessors, (5240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:12,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:12,736 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:12,737 INFO L175 Difference]: Start difference. First operand has 1653 places, 1719 transitions, 3448 flow. Second operand 3 states and 5240 transitions. [2023-11-26 11:46:12,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1654 places, 1718 transitions, 3472 flow [2023-11-26 11:46:12,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1652 places, 1718 transitions, 3468 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:46:12,782 INFO L231 Difference]: Finished difference. Result has 1652 places, 1718 transitions, 3446 flow [2023-11-26 11:46:12,785 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3442, PETRI_DIFFERENCE_MINUEND_PLACES=1650, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1716, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3446, PETRI_PLACES=1652, PETRI_TRANSITIONS=1718} [2023-11-26 11:46:12,787 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -13 predicate places. [2023-11-26 11:46:12,787 INFO L495 AbstractCegarLoop]: Abstraction has has 1652 places, 1718 transitions, 3446 flow [2023-11-26 11:46:12,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:12,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:46:12,790 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] [2023-11-26 11:46:12,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:46:12,791 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-26 11:46:12,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:12,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1687594488, now seen corresponding path program 1 times [2023-11-26 11:46:12,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:12,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511824087] [2023-11-26 11:46:12,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:12,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:12,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:46:12,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:12,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511824087] [2023-11-26 11:46:12,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511824087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:12,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:12,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:46:12,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033649851] [2023-11-26 11:46:12,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:12,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:46:12,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:12,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:46:12,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:46:12,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1742 out of 1795 [2023-11-26 11:46:12,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1652 places, 1718 transitions, 3446 flow. Second operand has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:12,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:46:12,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1742 of 1795 [2023-11-26 11:46:12,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:46:14,929 INFO L124 PetriNetUnfolderBase]: 123/2646 cut-off events. [2023-11-26 11:46:14,929 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-26 11:46:15,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 2646 events. 123/2646 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 15348 event pairs, 5 based on Foata normal form. 0/2126 useless extension candidates. Maximal degree in co-relation 2617. Up to 22 conditions per place. [2023-11-26 11:46:15,090 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 11 selfloop transitions, 2 changer transitions 0/1717 dead transitions. [2023-11-26 11:46:15,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1653 places, 1717 transitions, 3470 flow [2023-11-26 11:46:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:46:15,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:46:15,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5240 transitions. [2023-11-26 11:46:15,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9730733519034355 [2023-11-26 11:46:15,107 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5240 transitions. [2023-11-26 11:46:15,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5240 transitions. [2023-11-26 11:46:15,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:46:15,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5240 transitions. [2023-11-26 11:46:15,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1746.6666666666667) internal successors, (5240), 3 states have internal predecessors, (5240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:15,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:15,145 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:15,146 INFO L175 Difference]: Start difference. First operand has 1652 places, 1718 transitions, 3446 flow. Second operand 3 states and 5240 transitions. [2023-11-26 11:46:15,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1653 places, 1717 transitions, 3470 flow [2023-11-26 11:46:15,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1651 places, 1717 transitions, 3466 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:46:15,183 INFO L231 Difference]: Finished difference. Result has 1651 places, 1717 transitions, 3444 flow [2023-11-26 11:46:15,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3440, PETRI_DIFFERENCE_MINUEND_PLACES=1649, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1717, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1715, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3444, PETRI_PLACES=1651, PETRI_TRANSITIONS=1717} [2023-11-26 11:46:15,188 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -14 predicate places. [2023-11-26 11:46:15,189 INFO L495 AbstractCegarLoop]: Abstraction has has 1651 places, 1717 transitions, 3444 flow [2023-11-26 11:46:15,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:15,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:46:15,193 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] [2023-11-26 11:46:15,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:46:15,193 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-26 11:46:15,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:15,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1971258545, now seen corresponding path program 1 times [2023-11-26 11:46:15,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:15,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696110071] [2023-11-26 11:46:15,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:15,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:15,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:46:15,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:15,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696110071] [2023-11-26 11:46:15,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696110071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:15,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:15,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:46:15,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51732067] [2023-11-26 11:46:15,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:15,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:46:15,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:15,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:46:15,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:46:15,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1742 out of 1795 [2023-11-26 11:46:15,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1651 places, 1717 transitions, 3444 flow. Second operand has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:15,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:46:15,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1742 of 1795 [2023-11-26 11:46:15,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:46:17,107 INFO L124 PetriNetUnfolderBase]: 102/2214 cut-off events. [2023-11-26 11:46:17,107 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2023-11-26 11:46:17,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2249 conditions, 2214 events. 102/2214 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 11521 event pairs, 7 based on Foata normal form. 0/1789 useless extension candidates. Maximal degree in co-relation 2179. Up to 25 conditions per place. [2023-11-26 11:46:17,253 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 11 selfloop transitions, 2 changer transitions 0/1716 dead transitions. [2023-11-26 11:46:17,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1652 places, 1716 transitions, 3468 flow [2023-11-26 11:46:17,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:46:17,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:46:17,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5240 transitions. [2023-11-26 11:46:17,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9730733519034355 [2023-11-26 11:46:17,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5240 transitions. [2023-11-26 11:46:17,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5240 transitions. [2023-11-26 11:46:17,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:46:17,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5240 transitions. [2023-11-26 11:46:17,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1746.6666666666667) internal successors, (5240), 3 states have internal predecessors, (5240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:17,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:17,310 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:17,311 INFO L175 Difference]: Start difference. First operand has 1651 places, 1717 transitions, 3444 flow. Second operand 3 states and 5240 transitions. [2023-11-26 11:46:17,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1652 places, 1716 transitions, 3468 flow [2023-11-26 11:46:17,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1650 places, 1716 transitions, 3464 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:46:17,481 INFO L231 Difference]: Finished difference. Result has 1650 places, 1716 transitions, 3442 flow [2023-11-26 11:46:17,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3438, PETRI_DIFFERENCE_MINUEND_PLACES=1648, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1716, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1714, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3442, PETRI_PLACES=1650, PETRI_TRANSITIONS=1716} [2023-11-26 11:46:17,485 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -15 predicate places. [2023-11-26 11:46:17,486 INFO L495 AbstractCegarLoop]: Abstraction has has 1650 places, 1716 transitions, 3442 flow [2023-11-26 11:46:17,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:17,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:46:17,488 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] [2023-11-26 11:46:17,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:46:17,489 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-26 11:46:17,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:17,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1348790877, now seen corresponding path program 1 times [2023-11-26 11:46:17,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:17,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759055321] [2023-11-26 11:46:17,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:17,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:17,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:46:17,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:17,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759055321] [2023-11-26 11:46:17,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759055321] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:17,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:17,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:46:17,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055240133] [2023-11-26 11:46:17,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:17,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:46:17,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:17,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:46:17,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:46:17,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1742 out of 1795 [2023-11-26 11:46:17,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1650 places, 1716 transitions, 3442 flow. Second operand has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:17,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:46:17,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1742 of 1795 [2023-11-26 11:46:17,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:46:19,018 INFO L124 PetriNetUnfolderBase]: 102/2213 cut-off events. [2023-11-26 11:46:19,018 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2023-11-26 11:46:19,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2248 conditions, 2213 events. 102/2213 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 11765 event pairs, 7 based on Foata normal form. 0/1791 useless extension candidates. Maximal degree in co-relation 2170. Up to 25 conditions per place. [2023-11-26 11:46:19,304 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 11 selfloop transitions, 2 changer transitions 0/1715 dead transitions. [2023-11-26 11:46:19,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1651 places, 1715 transitions, 3466 flow [2023-11-26 11:46:19,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:46:19,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:46:19,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5240 transitions. [2023-11-26 11:46:19,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9730733519034355 [2023-11-26 11:46:19,318 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5240 transitions. [2023-11-26 11:46:19,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5240 transitions. [2023-11-26 11:46:19,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:46:19,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5240 transitions. [2023-11-26 11:46:19,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1746.6666666666667) internal successors, (5240), 3 states have internal predecessors, (5240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:19,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:19,349 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:19,349 INFO L175 Difference]: Start difference. First operand has 1650 places, 1716 transitions, 3442 flow. Second operand 3 states and 5240 transitions. [2023-11-26 11:46:19,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1651 places, 1715 transitions, 3466 flow [2023-11-26 11:46:19,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1649 places, 1715 transitions, 3462 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:46:19,385 INFO L231 Difference]: Finished difference. Result has 1649 places, 1715 transitions, 3440 flow [2023-11-26 11:46:19,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3436, PETRI_DIFFERENCE_MINUEND_PLACES=1647, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1713, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3440, PETRI_PLACES=1649, PETRI_TRANSITIONS=1715} [2023-11-26 11:46:19,389 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -16 predicate places. [2023-11-26 11:46:19,389 INFO L495 AbstractCegarLoop]: Abstraction has has 1649 places, 1715 transitions, 3440 flow [2023-11-26 11:46:19,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:19,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:46:19,392 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] [2023-11-26 11:46:19,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:46:19,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-26 11:46:19,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:19,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1359817151, now seen corresponding path program 1 times [2023-11-26 11:46:19,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:19,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477049230] [2023-11-26 11:46:19,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:19,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:19,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:46:19,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:19,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477049230] [2023-11-26 11:46:19,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477049230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:19,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:19,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:46:19,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100978334] [2023-11-26 11:46:19,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:19,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:46:19,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:19,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:46:19,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:46:19,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1734 out of 1795 [2023-11-26 11:46:19,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1649 places, 1715 transitions, 3440 flow. Second operand has 3 states, 3 states have (on average 1735.3333333333333) internal successors, (5206), 3 states have internal predecessors, (5206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:19,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:46:19,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1734 of 1795 [2023-11-26 11:46:19,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:46:26,091 INFO L124 PetriNetUnfolderBase]: 504/9886 cut-off events. [2023-11-26 11:46:26,091 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 11:46:26,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9969 conditions, 9886 events. 504/9886 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 89707 event pairs, 18 based on Foata normal form. 0/7799 useless extension candidates. Maximal degree in co-relation 9883. Up to 56 conditions per place. [2023-11-26 11:46:26,706 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 19 selfloop transitions, 2 changer transitions 0/1714 dead transitions. [2023-11-26 11:46:26,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1650 places, 1714 transitions, 3480 flow [2023-11-26 11:46:26,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:46:26,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:46:26,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5224 transitions. [2023-11-26 11:46:26,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9701021355617456 [2023-11-26 11:46:26,719 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5224 transitions. [2023-11-26 11:46:26,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5224 transitions. [2023-11-26 11:46:26,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:46:26,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5224 transitions. [2023-11-26 11:46:26,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1741.3333333333333) internal successors, (5224), 3 states have internal predecessors, (5224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:26,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:26,744 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:26,744 INFO L175 Difference]: Start difference. First operand has 1649 places, 1715 transitions, 3440 flow. Second operand 3 states and 5224 transitions. [2023-11-26 11:46:26,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1650 places, 1714 transitions, 3480 flow [2023-11-26 11:46:26,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1648 places, 1714 transitions, 3476 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:46:26,782 INFO L231 Difference]: Finished difference. Result has 1648 places, 1714 transitions, 3438 flow [2023-11-26 11:46:26,785 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3434, PETRI_DIFFERENCE_MINUEND_PLACES=1646, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1714, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1712, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3438, PETRI_PLACES=1648, PETRI_TRANSITIONS=1714} [2023-11-26 11:46:26,786 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -17 predicate places. [2023-11-26 11:46:26,786 INFO L495 AbstractCegarLoop]: Abstraction has has 1648 places, 1714 transitions, 3438 flow [2023-11-26 11:46:26,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1735.3333333333333) internal successors, (5206), 3 states have internal predecessors, (5206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:26,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:46:26,788 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] [2023-11-26 11:46:26,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:46:26,789 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-26 11:46:26,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:26,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1858078153, now seen corresponding path program 1 times [2023-11-26 11:46:26,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:26,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052696309] [2023-11-26 11:46:26,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:26,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:46:26,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:26,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052696309] [2023-11-26 11:46:26,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052696309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:26,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:26,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:46:26,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792759418] [2023-11-26 11:46:26,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:26,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:46:26,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:26,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:46:26,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:46:26,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1729 out of 1795 [2023-11-26 11:46:26,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1648 places, 1714 transitions, 3438 flow. Second operand has 3 states, 3 states have (on average 1730.3333333333333) internal successors, (5191), 3 states have internal predecessors, (5191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:26,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:46:26,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1729 of 1795 [2023-11-26 11:46:26,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:46:36,506 INFO L124 PetriNetUnfolderBase]: 792/15333 cut-off events. [2023-11-26 11:46:36,506 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 11:46:37,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15457 conditions, 15333 events. 792/15333 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 155559 event pairs, 30 based on Foata normal form. 0/12067 useless extension candidates. Maximal degree in co-relation 15363. Up to 85 conditions per place. [2023-11-26 11:46:37,365 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 24 selfloop transitions, 2 changer transitions 0/1713 dead transitions. [2023-11-26 11:46:37,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1649 places, 1713 transitions, 3488 flow [2023-11-26 11:46:37,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:46:37,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:46:37,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5214 transitions. [2023-11-26 11:46:37,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9682451253481894 [2023-11-26 11:46:37,378 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5214 transitions. [2023-11-26 11:46:37,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5214 transitions. [2023-11-26 11:46:37,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:46:37,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5214 transitions. [2023-11-26 11:46:37,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1738.0) internal successors, (5214), 3 states have internal predecessors, (5214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:37,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:37,403 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:37,404 INFO L175 Difference]: Start difference. First operand has 1648 places, 1714 transitions, 3438 flow. Second operand 3 states and 5214 transitions. [2023-11-26 11:46:37,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1649 places, 1713 transitions, 3488 flow [2023-11-26 11:46:37,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1647 places, 1713 transitions, 3484 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:46:37,448 INFO L231 Difference]: Finished difference. Result has 1647 places, 1713 transitions, 3436 flow [2023-11-26 11:46:37,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3432, PETRI_DIFFERENCE_MINUEND_PLACES=1645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1713, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1711, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3436, PETRI_PLACES=1647, PETRI_TRANSITIONS=1713} [2023-11-26 11:46:37,452 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -18 predicate places. [2023-11-26 11:46:37,452 INFO L495 AbstractCegarLoop]: Abstraction has has 1647 places, 1713 transitions, 3436 flow [2023-11-26 11:46:37,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1730.3333333333333) internal successors, (5191), 3 states have internal predecessors, (5191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:37,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:46:37,454 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] [2023-11-26 11:46:37,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:46:37,454 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-26 11:46:37,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:37,455 INFO L85 PathProgramCache]: Analyzing trace with hash -65591191, now seen corresponding path program 1 times [2023-11-26 11:46:37,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:37,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613441764] [2023-11-26 11:46:37,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:37,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:37,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:46:37,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:37,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613441764] [2023-11-26 11:46:37,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613441764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:37,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:37,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:46:37,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110848860] [2023-11-26 11:46:37,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:37,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:46:37,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:37,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:46:37,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:46:37,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1733 out of 1795 [2023-11-26 11:46:37,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1647 places, 1713 transitions, 3436 flow. Second operand has 3 states, 3 states have (on average 1734.3333333333333) internal successors, (5203), 3 states have internal predecessors, (5203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:37,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:46:37,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1733 of 1795 [2023-11-26 11:46:37,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:46:42,827 INFO L124 PetriNetUnfolderBase]: 297/5906 cut-off events. [2023-11-26 11:46:42,827 INFO L125 PetriNetUnfolderBase]: For 12/15 co-relation queries the response was YES. [2023-11-26 11:46:43,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5981 conditions, 5906 events. 297/5906 cut-off events. For 12/15 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 44568 event pairs, 18 based on Foata normal form. 0/4691 useless extension candidates. Maximal degree in co-relation 5879. Up to 57 conditions per place. [2023-11-26 11:46:43,327 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 20 selfloop transitions, 2 changer transitions 0/1712 dead transitions. [2023-11-26 11:46:43,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1648 places, 1712 transitions, 3478 flow [2023-11-26 11:46:43,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:46:43,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:46:43,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5222 transitions. [2023-11-26 11:46:43,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9697307335190344 [2023-11-26 11:46:43,339 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5222 transitions. [2023-11-26 11:46:43,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5222 transitions. [2023-11-26 11:46:43,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:46:43,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5222 transitions. [2023-11-26 11:46:43,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1740.6666666666667) internal successors, (5222), 3 states have internal predecessors, (5222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:43,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:43,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:43,361 INFO L175 Difference]: Start difference. First operand has 1647 places, 1713 transitions, 3436 flow. Second operand 3 states and 5222 transitions. [2023-11-26 11:46:43,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1648 places, 1712 transitions, 3478 flow [2023-11-26 11:46:43,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1646 places, 1712 transitions, 3474 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:46:43,398 INFO L231 Difference]: Finished difference. Result has 1646 places, 1712 transitions, 3434 flow [2023-11-26 11:46:43,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3430, PETRI_DIFFERENCE_MINUEND_PLACES=1644, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1710, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3434, PETRI_PLACES=1646, PETRI_TRANSITIONS=1712} [2023-11-26 11:46:43,402 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -19 predicate places. [2023-11-26 11:46:43,403 INFO L495 AbstractCegarLoop]: Abstraction has has 1646 places, 1712 transitions, 3434 flow [2023-11-26 11:46:43,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1734.3333333333333) internal successors, (5203), 3 states have internal predecessors, (5203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:43,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:46:43,404 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] [2023-11-26 11:46:43,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:46:43,405 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-26 11:46:43,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:43,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1798088740, now seen corresponding path program 1 times [2023-11-26 11:46:43,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:43,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687238249] [2023-11-26 11:46:43,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:43,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:46:43,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:43,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687238249] [2023-11-26 11:46:43,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687238249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:43,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:43,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:46:43,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147254957] [2023-11-26 11:46:43,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:43,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:46:43,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:43,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:46:43,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:46:43,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1729 out of 1795 [2023-11-26 11:46:43,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1646 places, 1712 transitions, 3434 flow. Second operand has 3 states, 3 states have (on average 1730.3333333333333) internal successors, (5191), 3 states have internal predecessors, (5191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:46:43,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:46:43,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1729 of 1795 [2023-11-26 11:46:43,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand