./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:54:16,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:54:16,778 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:54:16,785 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:54:16,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:54:16,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:54:16,818 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:54:16,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:54:16,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:54:16,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:54:16,822 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:54:16,822 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:54:16,823 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:54:16,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:54:16,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:54:16,826 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:54:16,827 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:54:16,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:54:16,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:54:16,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:54:16,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:54:16,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:54:16,832 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:54:16,832 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:54:16,833 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:54:16,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:54:16,835 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:54:16,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:54:16,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:54:16,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:54:16,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:16,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:54:16,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:54:16,840 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:54:16,841 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:54:16,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:54:16,842 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:54:16,843 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:54:16,843 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:54:16,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:54:16,844 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:54:16,844 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_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f [2023-11-06 22:54:17,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:54:17,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:54:17,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:54:17,278 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:54:17,279 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:54:17,281 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2023-11-06 22:54:20,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:54:20,852 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:54:20,853 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2023-11-06 22:54:20,863 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/data/f645d297d/7783197c1f644ddeaee8c10a30684482/FLAG65972d188 [2023-11-06 22:54:20,877 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/data/f645d297d/7783197c1f644ddeaee8c10a30684482 [2023-11-06 22:54:20,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:54:20,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:54:20,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:20,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:54:20,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:54:20,890 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:20" (1/1) ... [2023-11-06 22:54:20,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db09451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:20, skipping insertion in model container [2023-11-06 22:54:20,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:20" (1/1) ... [2023-11-06 22:54:20,920 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:54:21,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:21,194 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:54:21,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:21,250 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:54:21,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:21 WrapperNode [2023-11-06 22:54:21,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:21,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:21,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:54:21,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:54:21,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:21" (1/1) ... [2023-11-06 22:54:21,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:21" (1/1) ... [2023-11-06 22:54:21,319 INFO L138 Inliner]: procedures = 25, calls = 38, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 341 [2023-11-06 22:54:21,319 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:21,320 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:54:21,320 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:54:21,320 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:54:21,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:21" (1/1) ... [2023-11-06 22:54:21,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:21" (1/1) ... [2023-11-06 22:54:21,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:21" (1/1) ... [2023-11-06 22:54:21,338 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:21" (1/1) ... [2023-11-06 22:54:21,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:21" (1/1) ... [2023-11-06 22:54:21,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:21" (1/1) ... [2023-11-06 22:54:21,363 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:21" (1/1) ... [2023-11-06 22:54:21,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:21" (1/1) ... [2023-11-06 22:54:21,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:54:21,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:54:21,373 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:54:21,373 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:54:21,374 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:21" (1/1) ... [2023-11-06 22:54:21,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:21,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:21,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:54:21,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:54:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:54:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:54:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:54:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:54:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:54:21,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:54:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:54:21,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:54:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:54:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:54:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:54:21,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:54:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:54:21,475 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:54:21,621 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:54:21,624 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:54:22,336 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:54:22,349 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:54:22,350 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 22:54:22,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:22 BoogieIcfgContainer [2023-11-06 22:54:22,353 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:54:22,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:54:22,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:54:22,360 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:54:22,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:54:20" (1/3) ... [2023-11-06 22:54:22,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520b17b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:22, skipping insertion in model container [2023-11-06 22:54:22,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:21" (2/3) ... [2023-11-06 22:54:22,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520b17b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:22, skipping insertion in model container [2023-11-06 22:54:22,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:22" (3/3) ... [2023-11-06 22:54:22,364 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2023-11-06 22:54:22,374 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:54:22,387 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:54:22,387 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-11-06 22:54:22,388 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:54:22,596 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:54:22,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 428 places, 447 transitions, 908 flow [2023-11-06 22:54:23,020 INFO L124 PetriNetUnfolderBase]: 26/445 cut-off events. [2023-11-06 22:54:23,021 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:54:23,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 445 events. 26/445 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 700 event pairs, 0 based on Foata normal form. 0/383 useless extension candidates. Maximal degree in co-relation 254. Up to 2 conditions per place. [2023-11-06 22:54:23,031 INFO L82 GeneralOperation]: Start removeDead. Operand has 428 places, 447 transitions, 908 flow [2023-11-06 22:54:23,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 404 places, 421 transitions, 854 flow [2023-11-06 22:54:23,046 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:54:23,063 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 404 places, 421 transitions, 854 flow [2023-11-06 22:54:23,066 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 404 places, 421 transitions, 854 flow [2023-11-06 22:54:23,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 404 places, 421 transitions, 854 flow [2023-11-06 22:54:23,187 INFO L124 PetriNetUnfolderBase]: 24/421 cut-off events. [2023-11-06 22:54:23,187 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:54:23,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 421 events. 24/421 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 690 event pairs, 0 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 254. Up to 2 conditions per place. [2023-11-06 22:54:23,215 INFO L119 LiptonReduction]: Number of co-enabled transitions 28016 [2023-11-06 22:54:35,359 INFO L134 LiptonReduction]: Checked pairs total: 77570 [2023-11-06 22:54:35,359 INFO L136 LiptonReduction]: Total number of compositions: 457 [2023-11-06 22:54:35,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:54:35,392 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@472ba8aa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:54:35,393 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-11-06 22:54:35,395 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:54:35,396 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 22:54:35,396 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:54:35,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:35,397 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:54:35,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:35,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:35,403 INFO L85 PathProgramCache]: Analyzing trace with hash 54408, now seen corresponding path program 1 times [2023-11-06 22:54:35,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:35,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590889064] [2023-11-06 22:54:35,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:35,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:35,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:35,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:35,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590889064] [2023-11-06 22:54:35,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590889064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:35,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:35,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:54:35,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374171388] [2023-11-06 22:54:35,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:35,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:54:35,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:35,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:54:35,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:54:35,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 425 out of 904 [2023-11-06 22:54:35,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 98 transitions, 208 flow. Second operand has 2 states, 2 states have (on average 426.0) internal successors, (852), 2 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:35,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:35,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 425 of 904 [2023-11-06 22:54:35,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:35,901 INFO L124 PetriNetUnfolderBase]: 201/767 cut-off events. [2023-11-06 22:54:35,901 INFO L125 PetriNetUnfolderBase]: For 51/87 co-relation queries the response was YES. [2023-11-06 22:54:35,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 767 events. 201/767 cut-off events. For 51/87 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4890 event pairs, 165 based on Foata normal form. 25/664 useless extension candidates. Maximal degree in co-relation 1010. Up to 348 conditions per place. [2023-11-06 22:54:35,909 INFO L140 encePairwiseOnDemand]: 881/904 looper letters, 26 selfloop transitions, 0 changer transitions 1/75 dead transitions. [2023-11-06 22:54:35,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 75 transitions, 216 flow [2023-11-06 22:54:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:54:35,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:54:35,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 900 transitions. [2023-11-06 22:54:35,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.497787610619469 [2023-11-06 22:54:35,933 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 900 transitions. [2023-11-06 22:54:35,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 900 transitions. [2023-11-06 22:54:35,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:35,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 900 transitions. [2023-11-06 22:54:35,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 450.0) internal successors, (900), 2 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:35,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 904.0) internal successors, (2712), 3 states have internal predecessors, (2712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:35,959 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 904.0) internal successors, (2712), 3 states have internal predecessors, (2712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:35,961 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 208 flow. Second operand 2 states and 900 transitions. [2023-11-06 22:54:35,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 75 transitions, 216 flow [2023-11-06 22:54:35,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 75 transitions, 208 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:54:35,969 INFO L231 Difference]: Finished difference. Result has 75 places, 74 transitions, 151 flow [2023-11-06 22:54:35,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=151, PETRI_PLACES=75, PETRI_TRANSITIONS=74} [2023-11-06 22:54:35,975 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -25 predicate places. [2023-11-06 22:54:35,976 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 74 transitions, 151 flow [2023-11-06 22:54:35,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 426.0) internal successors, (852), 2 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:35,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:35,977 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:54:35,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:54:35,978 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:35,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:35,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1161114675, now seen corresponding path program 1 times [2023-11-06 22:54:35,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:35,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187988572] [2023-11-06 22:54:35,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:35,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:36,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:36,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:36,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187988572] [2023-11-06 22:54:36,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187988572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:36,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:36,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:36,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219574986] [2023-11-06 22:54:36,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:36,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:36,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:36,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:36,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:36,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 904 [2023-11-06 22:54:36,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 74 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 414.3333333333333) internal successors, (1243), 3 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:36,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 904 [2023-11-06 22:54:36,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:36,452 INFO L124 PetriNetUnfolderBase]: 201/768 cut-off events. [2023-11-06 22:54:36,453 INFO L125 PetriNetUnfolderBase]: For 8/44 co-relation queries the response was YES. [2023-11-06 22:54:36,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1127 conditions, 768 events. 201/768 cut-off events. For 8/44 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4880 event pairs, 165 based on Foata normal form. 0/640 useless extension candidates. Maximal degree in co-relation 1124. Up to 347 conditions per place. [2023-11-06 22:54:36,460 INFO L140 encePairwiseOnDemand]: 899/904 looper letters, 24 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2023-11-06 22:54:36,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 76 transitions, 211 flow [2023-11-06 22:54:36,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:36,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:54:36,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2023-11-06 22:54:36,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46792035398230086 [2023-11-06 22:54:36,467 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2023-11-06 22:54:36,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2023-11-06 22:54:36,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:36,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2023-11-06 22:54:36,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.0) internal successors, (1269), 3 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,485 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,485 INFO L175 Difference]: Start difference. First operand has 75 places, 74 transitions, 151 flow. Second operand 3 states and 1269 transitions. [2023-11-06 22:54:36,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 76 transitions, 211 flow [2023-11-06 22:54:36,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 76 transitions, 211 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:54:36,489 INFO L231 Difference]: Finished difference. Result has 77 places, 76 transitions, 173 flow [2023-11-06 22:54:36,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=77, PETRI_TRANSITIONS=76} [2023-11-06 22:54:36,490 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -23 predicate places. [2023-11-06 22:54:36,491 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 76 transitions, 173 flow [2023-11-06 22:54:36,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 414.3333333333333) internal successors, (1243), 3 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:36,492 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:36,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:54:36,493 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:36,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:36,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1854599885, now seen corresponding path program 1 times [2023-11-06 22:54:36,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:36,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312002109] [2023-11-06 22:54:36,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:36,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:36,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:54:36,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:36,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312002109] [2023-11-06 22:54:36,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312002109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:36,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:36,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:36,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475450872] [2023-11-06 22:54:36,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:36,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:36,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:36,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:36,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:36,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 904 [2023-11-06 22:54:36,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 76 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:36,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 904 [2023-11-06 22:54:36,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:36,735 INFO L124 PetriNetUnfolderBase]: 227/782 cut-off events. [2023-11-06 22:54:36,735 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:54:36,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1197 conditions, 782 events. 227/782 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4789 event pairs, 85 based on Foata normal form. 0/655 useless extension candidates. Maximal degree in co-relation 1192. Up to 378 conditions per place. [2023-11-06 22:54:36,742 INFO L140 encePairwiseOnDemand]: 900/904 looper letters, 33 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2023-11-06 22:54:36,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 80 transitions, 252 flow [2023-11-06 22:54:36,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:36,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:54:36,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1289 transitions. [2023-11-06 22:54:36,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4752949852507375 [2023-11-06 22:54:36,748 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1289 transitions. [2023-11-06 22:54:36,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1289 transitions. [2023-11-06 22:54:36,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:36,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1289 transitions. [2023-11-06 22:54:36,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.6666666666667) internal successors, (1289), 3 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,766 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,766 INFO L175 Difference]: Start difference. First operand has 77 places, 76 transitions, 173 flow. Second operand 3 states and 1289 transitions. [2023-11-06 22:54:36,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 80 transitions, 252 flow [2023-11-06 22:54:36,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 80 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:54:36,770 INFO L231 Difference]: Finished difference. Result has 77 places, 76 transitions, 179 flow [2023-11-06 22:54:36,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=77, PETRI_TRANSITIONS=76} [2023-11-06 22:54:36,771 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -23 predicate places. [2023-11-06 22:54:36,771 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 76 transitions, 179 flow [2023-11-06 22:54:36,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:36,773 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:36,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:54:36,774 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:36,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:36,774 INFO L85 PathProgramCache]: Analyzing trace with hash 157409795, now seen corresponding path program 1 times [2023-11-06 22:54:36,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:36,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212008499] [2023-11-06 22:54:36,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:36,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:36,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:54:36,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:36,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212008499] [2023-11-06 22:54:36,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212008499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:36,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:36,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:36,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096919896] [2023-11-06 22:54:36,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:36,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:36,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:36,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:36,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:36,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 904 [2023-11-06 22:54:36,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 76 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:36,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 904 [2023-11-06 22:54:36,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:37,008 INFO L124 PetriNetUnfolderBase]: 234/775 cut-off events. [2023-11-06 22:54:37,008 INFO L125 PetriNetUnfolderBase]: For 10/24 co-relation queries the response was YES. [2023-11-06 22:54:37,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1226 conditions, 775 events. 234/775 cut-off events. For 10/24 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4671 event pairs, 83 based on Foata normal form. 1/643 useless extension candidates. Maximal degree in co-relation 1221. Up to 389 conditions per place. [2023-11-06 22:54:37,017 INFO L140 encePairwiseOnDemand]: 900/904 looper letters, 34 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2023-11-06 22:54:37,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 80 transitions, 260 flow [2023-11-06 22:54:37,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:37,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:54:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1289 transitions. [2023-11-06 22:54:37,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4752949852507375 [2023-11-06 22:54:37,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1289 transitions. [2023-11-06 22:54:37,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1289 transitions. [2023-11-06 22:54:37,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:37,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1289 transitions. [2023-11-06 22:54:37,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.6666666666667) internal successors, (1289), 3 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:37,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:37,041 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:37,042 INFO L175 Difference]: Start difference. First operand has 77 places, 76 transitions, 179 flow. Second operand 3 states and 1289 transitions. [2023-11-06 22:54:37,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 80 transitions, 260 flow [2023-11-06 22:54:37,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 80 transitions, 260 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:54:37,045 INFO L231 Difference]: Finished difference. Result has 78 places, 76 transitions, 189 flow [2023-11-06 22:54:37,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=78, PETRI_TRANSITIONS=76} [2023-11-06 22:54:37,047 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -22 predicate places. [2023-11-06 22:54:37,047 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 76 transitions, 189 flow [2023-11-06 22:54:37,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:37,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:37,049 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:37,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:54:37,050 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:37,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:37,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1565658063, now seen corresponding path program 1 times [2023-11-06 22:54:37,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:37,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68364384] [2023-11-06 22:54:37,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:37,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:54:37,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:37,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68364384] [2023-11-06 22:54:37,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68364384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:37,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:37,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:37,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418611528] [2023-11-06 22:54:37,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:37,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:37,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:37,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:37,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:37,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 904 [2023-11-06 22:54:37,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 76 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 421.6666666666667) internal successors, (1265), 3 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:37,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:37,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 904 [2023-11-06 22:54:37,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:37,401 INFO L124 PetriNetUnfolderBase]: 405/1379 cut-off events. [2023-11-06 22:54:37,401 INFO L125 PetriNetUnfolderBase]: For 68/91 co-relation queries the response was YES. [2023-11-06 22:54:37,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2186 conditions, 1379 events. 405/1379 cut-off events. For 68/91 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 9576 event pairs, 107 based on Foata normal form. 3/1182 useless extension candidates. Maximal degree in co-relation 2180. Up to 481 conditions per place. [2023-11-06 22:54:37,413 INFO L140 encePairwiseOnDemand]: 900/904 looper letters, 48 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2023-11-06 22:54:37,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 91 transitions, 325 flow [2023-11-06 22:54:37,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:37,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:54:37,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1302 transitions. [2023-11-06 22:54:37,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48008849557522126 [2023-11-06 22:54:37,419 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1302 transitions. [2023-11-06 22:54:37,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1302 transitions. [2023-11-06 22:54:37,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:37,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1302 transitions. [2023-11-06 22:54:37,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:37,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:37,436 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:37,436 INFO L175 Difference]: Start difference. First operand has 78 places, 76 transitions, 189 flow. Second operand 3 states and 1302 transitions. [2023-11-06 22:54:37,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 91 transitions, 325 flow [2023-11-06 22:54:37,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 91 transitions, 325 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:54:37,440 INFO L231 Difference]: Finished difference. Result has 79 places, 76 transitions, 199 flow [2023-11-06 22:54:37,440 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=79, PETRI_TRANSITIONS=76} [2023-11-06 22:54:37,441 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -21 predicate places. [2023-11-06 22:54:37,441 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 76 transitions, 199 flow [2023-11-06 22:54:37,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.6666666666667) internal successors, (1265), 3 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:37,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:37,443 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:37,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:54:37,443 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:37,444 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:37,444 INFO L85 PathProgramCache]: Analyzing trace with hash -409850127, now seen corresponding path program 1 times [2023-11-06 22:54:37,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:37,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809248566] [2023-11-06 22:54:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:37,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:37,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:54:37,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:37,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809248566] [2023-11-06 22:54:37,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809248566] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:37,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060247650] [2023-11-06 22:54:37,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:37,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:37,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:37,574 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:37,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:54:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:37,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:54:37,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:37,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:54:37,842 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:37,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:54:37,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060247650] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:37,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:54:37,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-11-06 22:54:37,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332735351] [2023-11-06 22:54:37,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:37,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:54:37,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:37,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:54:37,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:54:38,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 904 [2023-11-06 22:54:38,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 76 transitions, 199 flow. Second operand has 8 states, 8 states have (on average 410.875) internal successors, (3287), 8 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:38,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:38,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 904 [2023-11-06 22:54:38,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:38,372 INFO L124 PetriNetUnfolderBase]: 325/1129 cut-off events. [2023-11-06 22:54:38,372 INFO L125 PetriNetUnfolderBase]: For 82/102 co-relation queries the response was YES. [2023-11-06 22:54:38,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1888 conditions, 1129 events. 325/1129 cut-off events. For 82/102 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 7242 event pairs, 233 based on Foata normal form. 0/977 useless extension candidates. Maximal degree in co-relation 1881. Up to 557 conditions per place. [2023-11-06 22:54:38,382 INFO L140 encePairwiseOnDemand]: 899/904 looper letters, 27 selfloop transitions, 10 changer transitions 0/82 dead transitions. [2023-11-06 22:54:38,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 82 transitions, 297 flow [2023-11-06 22:54:38,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:38,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:54:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2494 transitions. [2023-11-06 22:54:38,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45980825958702065 [2023-11-06 22:54:38,393 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2494 transitions. [2023-11-06 22:54:38,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2494 transitions. [2023-11-06 22:54:38,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:38,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2494 transitions. [2023-11-06 22:54:38,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 415.6666666666667) internal successors, (2494), 6 states have internal predecessors, (2494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:38,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:38,419 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:38,419 INFO L175 Difference]: Start difference. First operand has 79 places, 76 transitions, 199 flow. Second operand 6 states and 2494 transitions. [2023-11-06 22:54:38,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 82 transitions, 297 flow [2023-11-06 22:54:38,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 82 transitions, 297 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:54:38,423 INFO L231 Difference]: Finished difference. Result has 87 places, 82 transitions, 265 flow [2023-11-06 22:54:38,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=265, PETRI_PLACES=87, PETRI_TRANSITIONS=82} [2023-11-06 22:54:38,424 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -13 predicate places. [2023-11-06 22:54:38,424 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 82 transitions, 265 flow [2023-11-06 22:54:38,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 410.875) internal successors, (3287), 8 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:38,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:38,426 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:38,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:38,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:38,640 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:38,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:38,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1960907753, now seen corresponding path program 2 times [2023-11-06 22:54:38,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:38,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085871312] [2023-11-06 22:54:38,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:38,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:54:38,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:38,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085871312] [2023-11-06 22:54:38,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085871312] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:38,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628903394] [2023-11-06 22:54:38,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:54:38,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:38,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:38,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:38,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:54:39,073 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:54:39,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:54:39,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:54:39,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:39,135 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 22:54:39,158 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-06 22:54:39,190 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:54:39,190 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-06 22:54:39,227 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:54:39,227 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-06 22:54:39,256 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 22:54:39,257 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:39,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628903394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:39,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:54:39,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-11-06 22:54:39,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373445746] [2023-11-06 22:54:39,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:39,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:54:39,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:39,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:54:39,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:54:39,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 904 [2023-11-06 22:54:39,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 82 transitions, 265 flow. Second operand has 7 states, 7 states have (on average 408.85714285714283) internal successors, (2862), 7 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:39,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:39,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 904 [2023-11-06 22:54:39,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:40,204 INFO L124 PetriNetUnfolderBase]: 1095/2239 cut-off events. [2023-11-06 22:54:40,204 INFO L125 PetriNetUnfolderBase]: For 239/239 co-relation queries the response was YES. [2023-11-06 22:54:40,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4404 conditions, 2239 events. 1095/2239 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 13783 event pairs, 66 based on Foata normal form. 0/2031 useless extension candidates. Maximal degree in co-relation 4393. Up to 662 conditions per place. [2023-11-06 22:54:40,226 INFO L140 encePairwiseOnDemand]: 898/904 looper letters, 108 selfloop transitions, 5 changer transitions 0/153 dead transitions. [2023-11-06 22:54:40,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 153 transitions, 693 flow [2023-11-06 22:54:40,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:54:40,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:54:40,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2940 transitions. [2023-11-06 22:54:40,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4646017699115044 [2023-11-06 22:54:40,239 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2940 transitions. [2023-11-06 22:54:40,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2940 transitions. [2023-11-06 22:54:40,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:40,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2940 transitions. [2023-11-06 22:54:40,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 420.0) internal successors, (2940), 7 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:40,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 904.0) internal successors, (7232), 8 states have internal predecessors, (7232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:40,266 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 904.0) internal successors, (7232), 8 states have internal predecessors, (7232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:40,267 INFO L175 Difference]: Start difference. First operand has 87 places, 82 transitions, 265 flow. Second operand 7 states and 2940 transitions. [2023-11-06 22:54:40,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 153 transitions, 693 flow [2023-11-06 22:54:40,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 153 transitions, 677 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-06 22:54:40,272 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 257 flow [2023-11-06 22:54:40,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=257, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2023-11-06 22:54:40,273 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -9 predicate places. [2023-11-06 22:54:40,274 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 257 flow [2023-11-06 22:54:40,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 408.85714285714283) internal successors, (2862), 7 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:40,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:40,275 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:40,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:40,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:40,482 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:40,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:40,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1021467586, now seen corresponding path program 1 times [2023-11-06 22:54:40,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:40,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701469844] [2023-11-06 22:54:40,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:40,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:40,547 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 22:54:40,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:40,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701469844] [2023-11-06 22:54:40,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701469844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:40,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:40,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:40,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375995689] [2023-11-06 22:54:40,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:40,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:40,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:40,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:40,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:40,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 904 [2023-11-06 22:54:40,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 422.3333333333333) internal successors, (1267), 3 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:40,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:40,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 904 [2023-11-06 22:54:40,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:40,830 INFO L124 PetriNetUnfolderBase]: 446/1387 cut-off events. [2023-11-06 22:54:40,830 INFO L125 PetriNetUnfolderBase]: For 228/248 co-relation queries the response was YES. [2023-11-06 22:54:40,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2541 conditions, 1387 events. 446/1387 cut-off events. For 228/248 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 9206 event pairs, 100 based on Foata normal form. 1/1270 useless extension candidates. Maximal degree in co-relation 2529. Up to 567 conditions per place. [2023-11-06 22:54:40,844 INFO L140 encePairwiseOnDemand]: 900/904 looper letters, 54 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2023-11-06 22:54:40,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 95 transitions, 408 flow [2023-11-06 22:54:40,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:40,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:54:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1301 transitions. [2023-11-06 22:54:40,850 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4797197640117994 [2023-11-06 22:54:40,851 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1301 transitions. [2023-11-06 22:54:40,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1301 transitions. [2023-11-06 22:54:40,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:40,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1301 transitions. [2023-11-06 22:54:40,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 433.6666666666667) internal successors, (1301), 3 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:40,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:40,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 904.0) internal successors, (3616), 4 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:40,863 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 257 flow. Second operand 3 states and 1301 transitions. [2023-11-06 22:54:40,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 95 transitions, 408 flow [2023-11-06 22:54:40,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 95 transitions, 397 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:54:40,867 INFO L231 Difference]: Finished difference. Result has 87 places, 81 transitions, 258 flow [2023-11-06 22:54:40,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=87, PETRI_TRANSITIONS=81} [2023-11-06 22:54:40,868 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -13 predicate places. [2023-11-06 22:54:40,868 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 81 transitions, 258 flow [2023-11-06 22:54:40,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 422.3333333333333) internal successors, (1267), 3 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:40,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:40,869 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:40,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:54:40,870 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:40,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:40,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1881043436, now seen corresponding path program 1 times [2023-11-06 22:54:40,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:40,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417849136] [2023-11-06 22:54:40,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:40,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:41,092 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:54:41,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:41,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417849136] [2023-11-06 22:54:41,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417849136] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:41,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115678948] [2023-11-06 22:54:41,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:41,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:41,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:41,095 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:41,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:54:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:41,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:54:41,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:41,375 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:54:41,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:41,460 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:54:41,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115678948] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:41,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:54:41,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-11-06 22:54:41,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698050193] [2023-11-06 22:54:41,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:41,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-06 22:54:41,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:41,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-06 22:54:41,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-11-06 22:54:41,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 904 [2023-11-06 22:54:41,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 81 transitions, 258 flow. Second operand has 17 states, 17 states have (on average 410.47058823529414) internal successors, (6978), 17 states have internal predecessors, (6978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:41,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:41,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 904 [2023-11-06 22:54:41,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:42,288 INFO L124 PetriNetUnfolderBase]: 348/1224 cut-off events. [2023-11-06 22:54:42,289 INFO L125 PetriNetUnfolderBase]: For 94/120 co-relation queries the response was YES. [2023-11-06 22:54:42,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2125 conditions, 1224 events. 348/1224 cut-off events. For 94/120 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 7934 event pairs, 242 based on Foata normal form. 1/1139 useless extension candidates. Maximal degree in co-relation 2113. Up to 586 conditions per place. [2023-11-06 22:54:42,335 INFO L140 encePairwiseOnDemand]: 899/904 looper letters, 28 selfloop transitions, 12 changer transitions 0/83 dead transitions. [2023-11-06 22:54:42,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 83 transitions, 350 flow [2023-11-06 22:54:42,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:54:42,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:54:42,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2901 transitions. [2023-11-06 22:54:42,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4584386852085967 [2023-11-06 22:54:42,349 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2901 transitions. [2023-11-06 22:54:42,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2901 transitions. [2023-11-06 22:54:42,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:42,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2901 transitions. [2023-11-06 22:54:42,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 414.42857142857144) internal successors, (2901), 7 states have internal predecessors, (2901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:42,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 904.0) internal successors, (7232), 8 states have internal predecessors, (7232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:42,375 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 904.0) internal successors, (7232), 8 states have internal predecessors, (7232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:42,376 INFO L175 Difference]: Start difference. First operand has 87 places, 81 transitions, 258 flow. Second operand 7 states and 2901 transitions. [2023-11-06 22:54:42,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 83 transitions, 350 flow [2023-11-06 22:54:42,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 83 transitions, 350 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:54:42,380 INFO L231 Difference]: Finished difference. Result has 94 places, 83 transitions, 304 flow [2023-11-06 22:54:42,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=304, PETRI_PLACES=94, PETRI_TRANSITIONS=83} [2023-11-06 22:54:42,382 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -6 predicate places. [2023-11-06 22:54:42,382 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 83 transitions, 304 flow [2023-11-06 22:54:42,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 410.47058823529414) internal successors, (6978), 17 states have internal predecessors, (6978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:42,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:42,386 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:42,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:42,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:42,593 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:42,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:42,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1109719814, now seen corresponding path program 2 times [2023-11-06 22:54:42,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:42,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87973476] [2023-11-06 22:54:42,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:42,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:43,165 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-06 22:54:43,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:43,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87973476] [2023-11-06 22:54:43,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87973476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:43,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:43,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:54:43,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261069144] [2023-11-06 22:54:43,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:43,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:54:43,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:43,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:54:43,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:54:43,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 904 [2023-11-06 22:54:43,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 83 transitions, 304 flow. Second operand has 6 states, 6 states have (on average 409.5) internal successors, (2457), 6 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:43,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:43,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 904 [2023-11-06 22:54:43,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:44,141 INFO L124 PetriNetUnfolderBase]: 571/1553 cut-off events. [2023-11-06 22:54:44,142 INFO L125 PetriNetUnfolderBase]: For 136/156 co-relation queries the response was YES. [2023-11-06 22:54:44,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2926 conditions, 1553 events. 571/1553 cut-off events. For 136/156 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10005 event pairs, 220 based on Foata normal form. 0/1496 useless extension candidates. Maximal degree in co-relation 2912. Up to 540 conditions per place. [2023-11-06 22:54:44,158 INFO L140 encePairwiseOnDemand]: 898/904 looper letters, 88 selfloop transitions, 5 changer transitions 0/130 dead transitions. [2023-11-06 22:54:44,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 130 transitions, 616 flow [2023-11-06 22:54:44,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:44,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:54:44,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2518 transitions. [2023-11-06 22:54:44,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4642330383480826 [2023-11-06 22:54:44,169 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2518 transitions. [2023-11-06 22:54:44,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2518 transitions. [2023-11-06 22:54:44,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:44,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2518 transitions. [2023-11-06 22:54:44,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 419.6666666666667) internal successors, (2518), 6 states have internal predecessors, (2518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:44,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:44,191 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:44,191 INFO L175 Difference]: Start difference. First operand has 94 places, 83 transitions, 304 flow. Second operand 6 states and 2518 transitions. [2023-11-06 22:54:44,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 130 transitions, 616 flow [2023-11-06 22:54:44,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 130 transitions, 592 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-06 22:54:44,196 INFO L231 Difference]: Finished difference. Result has 94 places, 82 transitions, 288 flow [2023-11-06 22:54:44,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=94, PETRI_TRANSITIONS=82} [2023-11-06 22:54:44,197 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -6 predicate places. [2023-11-06 22:54:44,198 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 82 transitions, 288 flow [2023-11-06 22:54:44,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 409.5) internal successors, (2457), 6 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:44,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:44,199 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:44,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:54:44,199 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:44,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:44,200 INFO L85 PathProgramCache]: Analyzing trace with hash -936789261, now seen corresponding path program 1 times [2023-11-06 22:54:44,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:44,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689153264] [2023-11-06 22:54:44,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:44,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:44,781 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-06 22:54:44,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:44,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689153264] [2023-11-06 22:54:44,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689153264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:44,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:44,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:54:44,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425469385] [2023-11-06 22:54:44,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:44,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:54:44,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:44,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:54:44,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:54:45,225 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 904 [2023-11-06 22:54:45,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 409.8333333333333) internal successors, (2459), 6 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:45,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:45,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 904 [2023-11-06 22:54:45,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:45,598 INFO L124 PetriNetUnfolderBase]: 516/1343 cut-off events. [2023-11-06 22:54:45,598 INFO L125 PetriNetUnfolderBase]: For 155/181 co-relation queries the response was YES. [2023-11-06 22:54:45,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2680 conditions, 1343 events. 516/1343 cut-off events. For 155/181 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7758 event pairs, 190 based on Foata normal form. 0/1309 useless extension candidates. Maximal degree in co-relation 2665. Up to 477 conditions per place. [2023-11-06 22:54:45,614 INFO L140 encePairwiseOnDemand]: 898/904 looper letters, 83 selfloop transitions, 5 changer transitions 0/125 dead transitions. [2023-11-06 22:54:45,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 125 transitions, 590 flow [2023-11-06 22:54:45,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:54:45,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2513 transitions. [2023-11-06 22:54:45,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.463311209439528 [2023-11-06 22:54:45,624 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2513 transitions. [2023-11-06 22:54:45,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2513 transitions. [2023-11-06 22:54:45,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:45,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2513 transitions. [2023-11-06 22:54:45,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 418.8333333333333) internal successors, (2513), 6 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:45,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:45,646 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:45,647 INFO L175 Difference]: Start difference. First operand has 94 places, 82 transitions, 288 flow. Second operand 6 states and 2513 transitions. [2023-11-06 22:54:45,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 125 transitions, 590 flow [2023-11-06 22:54:45,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 125 transitions, 572 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:54:45,652 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 286 flow [2023-11-06 22:54:45,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2023-11-06 22:54:45,653 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -7 predicate places. [2023-11-06 22:54:45,654 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 286 flow [2023-11-06 22:54:45,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 409.8333333333333) internal successors, (2459), 6 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:45,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:45,655 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:45,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:54:45,655 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:45,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:45,656 INFO L85 PathProgramCache]: Analyzing trace with hash -191422722, now seen corresponding path program 1 times [2023-11-06 22:54:45,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:45,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515956524] [2023-11-06 22:54:45,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:45,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:46,302 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-06 22:54:46,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:46,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515956524] [2023-11-06 22:54:46,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515956524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:46,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:46,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:54:46,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195191377] [2023-11-06 22:54:46,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:46,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:54:46,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:46,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:54:46,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:54:46,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 904 [2023-11-06 22:54:46,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 286 flow. Second operand has 6 states, 6 states have (on average 410.1666666666667) internal successors, (2461), 6 states have internal predecessors, (2461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:46,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:46,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 904 [2023-11-06 22:54:46,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:47,232 INFO L124 PetriNetUnfolderBase]: 411/1226 cut-off events. [2023-11-06 22:54:47,233 INFO L125 PetriNetUnfolderBase]: For 175/201 co-relation queries the response was YES. [2023-11-06 22:54:47,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2437 conditions, 1226 events. 411/1226 cut-off events. For 175/201 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 7530 event pairs, 229 based on Foata normal form. 0/1204 useless extension candidates. Maximal degree in co-relation 2422. Up to 562 conditions per place. [2023-11-06 22:54:47,248 INFO L140 encePairwiseOnDemand]: 899/904 looper letters, 72 selfloop transitions, 4 changer transitions 4/116 dead transitions. [2023-11-06 22:54:47,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 116 transitions, 560 flow [2023-11-06 22:54:47,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:47,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:54:47,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2505 transitions. [2023-11-06 22:54:47,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4618362831858407 [2023-11-06 22:54:47,257 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2505 transitions. [2023-11-06 22:54:47,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2505 transitions. [2023-11-06 22:54:47,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:47,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2505 transitions. [2023-11-06 22:54:47,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 417.5) internal successors, (2505), 6 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:47,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:47,280 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:47,280 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 286 flow. Second operand 6 states and 2505 transitions. [2023-11-06 22:54:47,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 116 transitions, 560 flow [2023-11-06 22:54:47,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 116 transitions, 534 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:54:47,285 INFO L231 Difference]: Finished difference. Result has 92 places, 80 transitions, 282 flow [2023-11-06 22:54:47,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=282, PETRI_PLACES=92, PETRI_TRANSITIONS=80} [2023-11-06 22:54:47,288 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -8 predicate places. [2023-11-06 22:54:47,288 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 80 transitions, 282 flow [2023-11-06 22:54:47,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 410.1666666666667) internal successors, (2461), 6 states have internal predecessors, (2461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:47,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:47,290 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:47,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:54:47,290 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:47,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:47,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1966534495, now seen corresponding path program 1 times [2023-11-06 22:54:47,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:47,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672118675] [2023-11-06 22:54:47,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:47,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:47,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-06 22:54:47,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:47,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672118675] [2023-11-06 22:54:47,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672118675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:47,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:47,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:54:47,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810282654] [2023-11-06 22:54:47,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:47,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:54:47,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:47,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:54:47,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:54:48,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 904 [2023-11-06 22:54:48,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 409.5) internal successors, (2457), 6 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:48,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:48,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 904 [2023-11-06 22:54:48,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:48,536 INFO L124 PetriNetUnfolderBase]: 456/1271 cut-off events. [2023-11-06 22:54:48,536 INFO L125 PetriNetUnfolderBase]: For 128/154 co-relation queries the response was YES. [2023-11-06 22:54:48,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2444 conditions, 1271 events. 456/1271 cut-off events. For 128/154 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 7725 event pairs, 220 based on Foata normal form. 0/1250 useless extension candidates. Maximal degree in co-relation 2429. Up to 544 conditions per place. [2023-11-06 22:54:48,548 INFO L140 encePairwiseOnDemand]: 898/904 looper letters, 79 selfloop transitions, 5 changer transitions 4/123 dead transitions. [2023-11-06 22:54:48,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 123 transitions, 564 flow [2023-11-06 22:54:48,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:54:48,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2517 transitions. [2023-11-06 22:54:48,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46404867256637167 [2023-11-06 22:54:48,557 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2517 transitions. [2023-11-06 22:54:48,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2517 transitions. [2023-11-06 22:54:48,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:48,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2517 transitions. [2023-11-06 22:54:48,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 419.5) internal successors, (2517), 6 states have internal predecessors, (2517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:48,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:48,576 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:48,576 INFO L175 Difference]: Start difference. First operand has 92 places, 80 transitions, 282 flow. Second operand 6 states and 2517 transitions. [2023-11-06 22:54:48,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 123 transitions, 564 flow [2023-11-06 22:54:48,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 123 transitions, 557 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:54:48,581 INFO L231 Difference]: Finished difference. Result has 92 places, 79 transitions, 283 flow [2023-11-06 22:54:48,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=92, PETRI_TRANSITIONS=79} [2023-11-06 22:54:48,583 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -8 predicate places. [2023-11-06 22:54:48,583 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 79 transitions, 283 flow [2023-11-06 22:54:48,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 409.5) internal successors, (2457), 6 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:48,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:48,584 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:48,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:54:48,585 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-06 22:54:48,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:48,585 INFO L85 PathProgramCache]: Analyzing trace with hash 562833300, now seen corresponding path program 1 times [2023-11-06 22:54:48,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:48,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631008193] [2023-11-06 22:54:48,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:48,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:49,161 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-06 22:54:49,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:49,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631008193] [2023-11-06 22:54:49,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631008193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:49,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:49,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:54:49,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047806225] [2023-11-06 22:54:49,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:49,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:54:49,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:49,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:54:49,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:54:49,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 904 [2023-11-06 22:54:49,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 79 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 410.0) internal successors, (2460), 6 states have internal predecessors, (2460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:49,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:49,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 904 [2023-11-06 22:54:49,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:49,997 INFO L124 PetriNetUnfolderBase]: 420/1205 cut-off events. [2023-11-06 22:54:49,997 INFO L125 PetriNetUnfolderBase]: For 128/154 co-relation queries the response was YES. [2023-11-06 22:54:50,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2335 conditions, 1205 events. 420/1205 cut-off events. For 128/154 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 7227 event pairs, 224 based on Foata normal form. 0/1185 useless extension candidates. Maximal degree in co-relation 2320. Up to 553 conditions per place. [2023-11-06 22:54:50,011 INFO L140 encePairwiseOnDemand]: 898/904 looper letters, 0 selfloop transitions, 0 changer transitions 118/118 dead transitions. [2023-11-06 22:54:50,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 118 transitions, 555 flow [2023-11-06 22:54:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:50,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:54:50,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2512 transitions. [2023-11-06 22:54:50,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4631268436578171 [2023-11-06 22:54:50,022 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2512 transitions. [2023-11-06 22:54:50,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2512 transitions. [2023-11-06 22:54:50,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:50,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2512 transitions. [2023-11-06 22:54:50,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 418.6666666666667) internal successors, (2512), 6 states have internal predecessors, (2512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:50,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:50,041 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 904.0) internal successors, (6328), 7 states have internal predecessors, (6328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:50,041 INFO L175 Difference]: Start difference. First operand has 92 places, 79 transitions, 283 flow. Second operand 6 states and 2512 transitions. [2023-11-06 22:54:50,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 118 transitions, 555 flow [2023-11-06 22:54:50,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 118 transitions, 537 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:54:50,045 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2023-11-06 22:54:50,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=904, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2023-11-06 22:54:50,046 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -9 predicate places. [2023-11-06 22:54:50,046 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2023-11-06 22:54:50,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 410.0) internal successors, (2460), 6 states have internal predecessors, (2460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:50,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (59 of 60 remaining) [2023-11-06 22:54:50,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2023-11-06 22:54:50,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2023-11-06 22:54:50,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2023-11-06 22:54:50,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2023-11-06 22:54:50,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2023-11-06 22:54:50,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2023-11-06 22:54:50,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2023-11-06 22:54:50,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2023-11-06 22:54:50,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2023-11-06 22:54:50,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2023-11-06 22:54:50,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2023-11-06 22:54:50,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2023-11-06 22:54:50,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2023-11-06 22:54:50,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2023-11-06 22:54:50,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2023-11-06 22:54:50,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2023-11-06 22:54:50,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2023-11-06 22:54:50,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2023-11-06 22:54:50,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2023-11-06 22:54:50,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2023-11-06 22:54:50,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2023-11-06 22:54:50,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2023-11-06 22:54:50,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2023-11-06 22:54:50,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2023-11-06 22:54:50,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2023-11-06 22:54:50,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2023-11-06 22:54:50,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2023-11-06 22:54:50,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2023-11-06 22:54:50,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2023-11-06 22:54:50,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2023-11-06 22:54:50,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2023-11-06 22:54:50,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2023-11-06 22:54:50,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2023-11-06 22:54:50,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2023-11-06 22:54:50,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2023-11-06 22:54:50,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 60 remaining) [2023-11-06 22:54:50,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 60 remaining) [2023-11-06 22:54:50,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2023-11-06 22:54:50,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2023-11-06 22:54:50,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2023-11-06 22:54:50,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2023-11-06 22:54:50,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2023-11-06 22:54:50,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2023-11-06 22:54:50,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2023-11-06 22:54:50,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2023-11-06 22:54:50,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2023-11-06 22:54:50,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2023-11-06 22:54:50,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2023-11-06 22:54:50,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2023-11-06 22:54:50,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2023-11-06 22:54:50,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2023-11-06 22:54:50,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2023-11-06 22:54:50,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2023-11-06 22:54:50,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2023-11-06 22:54:50,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2023-11-06 22:54:50,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2023-11-06 22:54:50,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2023-11-06 22:54:50,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2023-11-06 22:54:50,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2023-11-06 22:54:50,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:54:50,064 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:50,072 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:54:50,072 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:54:50,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:54:50 BasicIcfg [2023-11-06 22:54:50,077 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:54:50,078 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:54:50,078 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:54:50,078 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:54:50,079 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:22" (3/4) ... [2023-11-06 22:54:50,080 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:54:50,084 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 22:54:50,085 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 22:54:50,096 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2023-11-06 22:54:50,097 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:54:50,097 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:54:50,098 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:54:50,196 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:54:50,197 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:54:50,197 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:54:50,197 INFO L158 Benchmark]: Toolchain (without parser) took 29316.03ms. Allocated memory was 146.8MB in the beginning and 308.3MB in the end (delta: 161.5MB). Free memory was 102.1MB in the beginning and 201.6MB in the end (delta: -99.5MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2023-11-06 22:54:50,198 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:54:50,198 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.19ms. Allocated memory is still 146.8MB. Free memory was 102.1MB in the beginning and 110.6MB in the end (delta: -8.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:54:50,199 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.85ms. Allocated memory is still 146.8MB. Free memory was 110.6MB in the beginning and 106.6MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:54:50,199 INFO L158 Benchmark]: Boogie Preprocessor took 51.73ms. Allocated memory is still 146.8MB. Free memory was 106.6MB in the beginning and 104.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:54:50,200 INFO L158 Benchmark]: RCFGBuilder took 981.08ms. Allocated memory is still 146.8MB. Free memory was 104.5MB in the beginning and 70.9MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-06 22:54:50,200 INFO L158 Benchmark]: TraceAbstraction took 27720.72ms. Allocated memory was 146.8MB in the beginning and 308.3MB in the end (delta: 161.5MB). Free memory was 70.9MB in the beginning and 207.9MB in the end (delta: -137.0MB). Peak memory consumption was 149.2MB. Max. memory is 16.1GB. [2023-11-06 22:54:50,201 INFO L158 Benchmark]: Witness Printer took 119.07ms. Allocated memory is still 308.3MB. Free memory was 206.8MB in the beginning and 201.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:54:50,203 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.19ms. Allocated memory is still 146.8MB. Free memory was 102.1MB in the beginning and 110.6MB in the end (delta: -8.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.85ms. Allocated memory is still 146.8MB. Free memory was 110.6MB in the beginning and 106.6MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.73ms. Allocated memory is still 146.8MB. Free memory was 106.6MB in the beginning and 104.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 981.08ms. Allocated memory is still 146.8MB. Free memory was 104.5MB in the beginning and 70.9MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 27720.72ms. Allocated memory was 146.8MB in the beginning and 308.3MB in the end (delta: 161.5MB). Free memory was 70.9MB in the beginning and 207.9MB in the end (delta: -137.0MB). Peak memory consumption was 149.2MB. Max. memory is 16.1GB. * Witness Printer took 119.07ms. Allocated memory is still 308.3MB. Free memory was 206.8MB in the beginning and 201.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.3s, 404 PlacesBefore, 100 PlacesAfterwards, 421 TransitionsBefore, 98 TransitionsAfterwards, 28016 CoEnabledTransitionPairs, 7 FixpointIterations, 199 TrivialSequentialCompositions, 179 ConcurrentSequentialCompositions, 34 TrivialYvCompositions, 26 ConcurrentYvCompositions, 19 ChoiceCompositions, 457 TotalNumberOfCompositions, 77570 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30810, independent: 29901, independent conditional: 0, independent unconditional: 29901, dependent: 909, dependent conditional: 0, dependent unconditional: 909, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 15038, independent: 14897, independent conditional: 0, independent unconditional: 14897, dependent: 141, dependent conditional: 0, dependent unconditional: 141, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 30810, independent: 15004, independent conditional: 0, independent unconditional: 15004, dependent: 768, dependent conditional: 0, dependent unconditional: 768, unknown: 15038, unknown conditional: 0, unknown unconditional: 15038] , Statistics on independence cache: Total cache size (in pairs): 894, Positive cache size: 821, Positive conditional cache size: 0, Positive unconditional cache size: 821, Negative cache size: 73, Negative conditional cache size: 0, Negative unconditional cache size: 73, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 620 locations, 60 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 27.4s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2094 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1345 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 647 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4399 IncrementalHoareTripleChecker+Invalid, 5046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 647 mSolverCounterUnsat, 37 mSDtfsCounter, 4399 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=9, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 323 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 341 ConstructedInterpolants, 0 QuantifiedInterpolants, 1144 SizeOfPredicates, 2 NumberOfNonLiveVariables, 638 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 239/282 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:54:50,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498e026-63b4-474f-98c3-aaa7cf9b9b4a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE