./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 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_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:10:57,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:10:57,526 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:10:57,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:10:57,532 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:10:57,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:10:57,558 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:10:57,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:10:57,559 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:10:57,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:10:57,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:10:57,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:10:57,562 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:10:57,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:10:57,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:10:57,564 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:10:57,564 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:10:57,565 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:10:57,565 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:10:57,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:10:57,566 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:10:57,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:10:57,568 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:10:57,568 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:10:57,569 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:10:57,569 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:10:57,570 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:10:57,570 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:10:57,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:10:57,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:10:57,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:10:57,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:10:57,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:10:57,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:10:57,574 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:10:57,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:10:57,574 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:10:57,575 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:10:57,575 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:10:57,575 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:10:57,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:10:57,576 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_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 [2023-11-21 22:10:57,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:10:57,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:10:57,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:10:57,943 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:10:57,944 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:10:57,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2023-11-21 22:11:01,128 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:11:01,350 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:11:01,351 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2023-11-21 22:11:01,361 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx/data/9f4c7dac6/7ace8c00eff5491c9a182b2d11d955ac/FLAG1b37e6feb [2023-11-21 22:11:01,376 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx/data/9f4c7dac6/7ace8c00eff5491c9a182b2d11d955ac [2023-11-21 22:11:01,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:11:01,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:11:01,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:01,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:11:01,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:11:01,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c85bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01, skipping insertion in model container [2023-11-21 22:11:01,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,423 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:11:01,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:01,640 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:11:01,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:01,696 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:11:01,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01 WrapperNode [2023-11-21 22:11:01,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:01,697 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:01,697 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:11:01,697 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:11:01,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,785 INFO L138 Inliner]: procedures = 25, calls = 47, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 310 [2023-11-21 22:11:01,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:01,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:11:01,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:11:01,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:11:01,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,880 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,883 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:11:01,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:11:01,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:11:01,903 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:11:01,904 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01" (1/1) ... [2023-11-21 22:11:01,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:01,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:01,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:11:01,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91792bff-a532-417b-aab8-2e01fbd75319/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:11:02,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:11:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:11:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:11:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:11:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:11:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:11:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:11:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:11:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 22:11:02,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 22:11:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:11:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:11:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:11:02,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:11:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:11:02,009 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:11:02,160 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:11:02,162 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:11:03,124 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:11:03,150 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:11:03,158 INFO L308 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-21 22:11:03,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:03 BoogieIcfgContainer [2023-11-21 22:11:03,160 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:11:03,163 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:11:03,165 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:11:03,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:11:03,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:11:01" (1/3) ... [2023-11-21 22:11:03,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf73ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:03, skipping insertion in model container [2023-11-21 22:11:03,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:01" (2/3) ... [2023-11-21 22:11:03,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf73ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:03, skipping insertion in model container [2023-11-21 22:11:03,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:03" (3/3) ... [2023-11-21 22:11:03,175 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2023-11-21 22:11:03,188 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:11:03,199 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:11:03,200 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2023-11-21 22:11:03,200 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:11:03,353 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 22:11:03,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 523 places, 540 transitions, 1101 flow [2023-11-21 22:11:03,629 INFO L124 PetriNetUnfolderBase]: 27/537 cut-off events. [2023-11-21 22:11:03,630 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:11:03,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 537 events. 27/537 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 757 event pairs, 0 based on Foata normal form. 0/463 useless extension candidates. Maximal degree in co-relation 396. Up to 2 conditions per place. [2023-11-21 22:11:03,640 INFO L82 GeneralOperation]: Start removeDead. Operand has 523 places, 540 transitions, 1101 flow [2023-11-21 22:11:03,656 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 496 places, 512 transitions, 1042 flow [2023-11-21 22:11:03,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:11:03,686 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@22f12006, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:11:03,687 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2023-11-21 22:11:03,697 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:11:03,697 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-21 22:11:03,697 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:11:03,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:03,698 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:03,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:03,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:03,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1834480221, now seen corresponding path program 1 times [2023-11-21 22:11:03,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:03,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818874840] [2023-11-21 22:11:03,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:03,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:04,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:04,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:04,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818874840] [2023-11-21 22:11:04,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818874840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:04,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:04,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:04,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625410979] [2023-11-21 22:11:04,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:04,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:04,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:04,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:04,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:04,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 504 out of 540 [2023-11-21 22:11:04,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 512 transitions, 1042 flow. Second operand has 3 states, 3 states have (on average 505.3333333333333) internal successors, (1516), 3 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:04,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:04,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 504 of 540 [2023-11-21 22:11:04,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:04,341 INFO L124 PetriNetUnfolderBase]: 23/787 cut-off events. [2023-11-21 22:11:04,341 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-21 22:11:04,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 839 conditions, 787 events. 23/787 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2552 event pairs, 7 based on Foata normal form. 26/692 useless extension candidates. Maximal degree in co-relation 443. Up to 31 conditions per place. [2023-11-21 22:11:04,355 INFO L140 encePairwiseOnDemand]: 520/540 looper letters, 13 selfloop transitions, 2 changer transitions 10/494 dead transitions. [2023-11-21 22:11:04,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 494 transitions, 1036 flow [2023-11-21 22:11:04,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:04,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:04,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1545 transitions. [2023-11-21 22:11:04,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9537037037037037 [2023-11-21 22:11:04,378 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1545 transitions. [2023-11-21 22:11:04,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1545 transitions. [2023-11-21 22:11:04,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:04,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1545 transitions. [2023-11-21 22:11:04,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 515.0) internal successors, (1545), 3 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:04,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:04,440 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:04,442 INFO L175 Difference]: Start difference. First operand has 496 places, 512 transitions, 1042 flow. Second operand 3 states and 1545 transitions. [2023-11-21 22:11:04,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 494 transitions, 1036 flow [2023-11-21 22:11:04,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 494 transitions, 1024 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-21 22:11:04,470 INFO L231 Difference]: Finished difference. Result has 491 places, 484 transitions, 978 flow [2023-11-21 22:11:04,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=978, PETRI_PLACES=491, PETRI_TRANSITIONS=484} [2023-11-21 22:11:04,478 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -5 predicate places. [2023-11-21 22:11:04,478 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 484 transitions, 978 flow [2023-11-21 22:11:04,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 505.3333333333333) internal successors, (1516), 3 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:04,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:04,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:04,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:11:04,482 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:04,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:04,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1870529659, now seen corresponding path program 1 times [2023-11-21 22:11:04,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:04,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731111497] [2023-11-21 22:11:04,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:04,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:04,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:04,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:04,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731111497] [2023-11-21 22:11:04,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731111497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:04,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:04,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:04,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947851342] [2023-11-21 22:11:04,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:04,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:04,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:04,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:04,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:04,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 540 [2023-11-21 22:11:04,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 484 transitions, 978 flow. Second operand has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:04,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:04,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 540 [2023-11-21 22:11:04,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:04,893 INFO L124 PetriNetUnfolderBase]: 17/644 cut-off events. [2023-11-21 22:11:04,893 INFO L125 PetriNetUnfolderBase]: For 5/8 co-relation queries the response was YES. [2023-11-21 22:11:04,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 644 events. 17/644 cut-off events. For 5/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1791 event pairs, 5 based on Foata normal form. 0/562 useless extension candidates. Maximal degree in co-relation 655. Up to 31 conditions per place. [2023-11-21 22:11:04,903 INFO L140 encePairwiseOnDemand]: 537/540 looper letters, 17 selfloop transitions, 2 changer transitions 0/483 dead transitions. [2023-11-21 22:11:04,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 483 transitions, 1014 flow [2023-11-21 22:11:04,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:04,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:04,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1520 transitions. [2023-11-21 22:11:04,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9382716049382716 [2023-11-21 22:11:04,910 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1520 transitions. [2023-11-21 22:11:04,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1520 transitions. [2023-11-21 22:11:04,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:04,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1520 transitions. [2023-11-21 22:11:04,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 506.6666666666667) internal successors, (1520), 3 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:04,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:04,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:04,927 INFO L175 Difference]: Start difference. First operand has 491 places, 484 transitions, 978 flow. Second operand 3 states and 1520 transitions. [2023-11-21 22:11:04,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 483 transitions, 1014 flow [2023-11-21 22:11:04,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 483 transitions, 1010 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:04,941 INFO L231 Difference]: Finished difference. Result has 480 places, 483 transitions, 976 flow [2023-11-21 22:11:04,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=972, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=976, PETRI_PLACES=480, PETRI_TRANSITIONS=483} [2023-11-21 22:11:04,944 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -16 predicate places. [2023-11-21 22:11:04,944 INFO L495 AbstractCegarLoop]: Abstraction has has 480 places, 483 transitions, 976 flow [2023-11-21 22:11:04,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:04,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:04,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:04,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:11:04,952 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:04,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:04,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1113141939, now seen corresponding path program 1 times [2023-11-21 22:11:04,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:04,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569237311] [2023-11-21 22:11:04,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:04,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:05,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:05,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:05,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569237311] [2023-11-21 22:11:05,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569237311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:05,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:05,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:05,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23582692] [2023-11-21 22:11:05,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:05,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:05,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:05,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:05,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:05,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 490 out of 540 [2023-11-21 22:11:05,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 483 transitions, 976 flow. Second operand has 3 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:05,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:05,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 490 of 540 [2023-11-21 22:11:05,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:05,412 INFO L124 PetriNetUnfolderBase]: 29/817 cut-off events. [2023-11-21 22:11:05,412 INFO L125 PetriNetUnfolderBase]: For 8/14 co-relation queries the response was YES. [2023-11-21 22:11:05,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 817 events. 29/817 cut-off events. For 8/14 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2965 event pairs, 12 based on Foata normal form. 0/712 useless extension candidates. Maximal degree in co-relation 845. Up to 54 conditions per place. [2023-11-21 22:11:05,426 INFO L140 encePairwiseOnDemand]: 531/540 looper letters, 22 selfloop transitions, 1 changer transitions 0/475 dead transitions. [2023-11-21 22:11:05,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 475 transitions, 1006 flow [2023-11-21 22:11:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:05,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:05,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1501 transitions. [2023-11-21 22:11:05,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9265432098765433 [2023-11-21 22:11:05,442 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1501 transitions. [2023-11-21 22:11:05,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1501 transitions. [2023-11-21 22:11:05,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:05,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1501 transitions. [2023-11-21 22:11:05,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 500.3333333333333) internal successors, (1501), 3 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:05,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:05,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:05,456 INFO L175 Difference]: Start difference. First operand has 480 places, 483 transitions, 976 flow. Second operand 3 states and 1501 transitions. [2023-11-21 22:11:05,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 475 transitions, 1006 flow [2023-11-21 22:11:05,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 475 transitions, 1002 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:05,469 INFO L231 Difference]: Finished difference. Result has 472 places, 475 transitions, 958 flow [2023-11-21 22:11:05,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=958, PETRI_PLACES=472, PETRI_TRANSITIONS=475} [2023-11-21 22:11:05,471 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -24 predicate places. [2023-11-21 22:11:05,471 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 475 transitions, 958 flow [2023-11-21 22:11:05,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:05,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:05,473 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:05,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:11:05,474 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:05,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:05,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1079115326, now seen corresponding path program 1 times [2023-11-21 22:11:05,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:05,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003097025] [2023-11-21 22:11:05,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:05,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:06,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:06,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003097025] [2023-11-21 22:11:06,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003097025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:06,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:06,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:06,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847597607] [2023-11-21 22:11:06,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:06,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:06,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:06,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:06,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:06,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 540 [2023-11-21 22:11:06,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 475 transitions, 958 flow. Second operand has 6 states, 6 states have (on average 404.5) internal successors, (2427), 6 states have internal predecessors, (2427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:06,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:06,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 540 [2023-11-21 22:11:06,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:28,463 INFO L124 PetriNetUnfolderBase]: 33054/94812 cut-off events. [2023-11-21 22:11:28,463 INFO L125 PetriNetUnfolderBase]: For 366/369 co-relation queries the response was YES. [2023-11-21 22:11:28,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140177 conditions, 94812 events. 33054/94812 cut-off events. For 366/369 co-relation queries the response was YES. Maximal size of possible extension queue 2295. Compared 1289339 event pairs, 30168 based on Foata normal form. 0/82544 useless extension candidates. Maximal degree in co-relation 140139. Up to 45159 conditions per place. [2023-11-21 22:11:29,733 INFO L140 encePairwiseOnDemand]: 516/540 looper letters, 94 selfloop transitions, 20 changer transitions 0/471 dead transitions. [2023-11-21 22:11:29,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 471 transitions, 1178 flow [2023-11-21 22:11:29,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:29,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:29,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2536 transitions. [2023-11-21 22:11:29,742 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.782716049382716 [2023-11-21 22:11:29,742 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2536 transitions. [2023-11-21 22:11:29,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2536 transitions. [2023-11-21 22:11:29,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:29,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2536 transitions. [2023-11-21 22:11:29,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 422.6666666666667) internal successors, (2536), 6 states have internal predecessors, (2536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,766 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,766 INFO L175 Difference]: Start difference. First operand has 472 places, 475 transitions, 958 flow. Second operand 6 states and 2536 transitions. [2023-11-21 22:11:29,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 471 transitions, 1178 flow [2023-11-21 22:11:29,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 471 transitions, 1177 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:11:29,783 INFO L231 Difference]: Finished difference. Result has 472 places, 471 transitions, 989 flow [2023-11-21 22:11:29,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=949, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=989, PETRI_PLACES=472, PETRI_TRANSITIONS=471} [2023-11-21 22:11:29,786 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -24 predicate places. [2023-11-21 22:11:29,786 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 471 transitions, 989 flow [2023-11-21 22:11:29,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 404.5) internal successors, (2427), 6 states have internal predecessors, (2427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:29,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:29,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:11:29,790 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:29,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:29,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1564871574, now seen corresponding path program 1 times [2023-11-21 22:11:29,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:29,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523837418] [2023-11-21 22:11:29,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:29,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:29,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:29,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:29,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523837418] [2023-11-21 22:11:29,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523837418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:29,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:29,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:29,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91804943] [2023-11-21 22:11:29,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:29,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:29,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:29,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:29,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:29,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 505 out of 540 [2023-11-21 22:11:29,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 471 transitions, 989 flow. Second operand has 3 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:29,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:29,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 505 of 540 [2023-11-21 22:11:29,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:30,045 INFO L124 PetriNetUnfolderBase]: 28/751 cut-off events. [2023-11-21 22:11:30,045 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 22:11:30,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 751 events. 28/751 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2726 event pairs, 15 based on Foata normal form. 0/669 useless extension candidates. Maximal degree in co-relation 784. Up to 40 conditions per place. [2023-11-21 22:11:30,054 INFO L140 encePairwiseOnDemand]: 537/540 looper letters, 12 selfloop transitions, 2 changer transitions 0/470 dead transitions. [2023-11-21 22:11:30,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 470 transitions, 1015 flow [2023-11-21 22:11:30,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:30,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:30,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1530 transitions. [2023-11-21 22:11:30,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2023-11-21 22:11:30,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1530 transitions. [2023-11-21 22:11:30,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1530 transitions. [2023-11-21 22:11:30,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:30,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1530 transitions. [2023-11-21 22:11:30,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 510.0) internal successors, (1530), 3 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,074 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,075 INFO L175 Difference]: Start difference. First operand has 472 places, 471 transitions, 989 flow. Second operand 3 states and 1530 transitions. [2023-11-21 22:11:30,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 470 transitions, 1015 flow [2023-11-21 22:11:30,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 470 transitions, 975 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:11:30,086 INFO L231 Difference]: Finished difference. Result has 468 places, 470 transitions, 951 flow [2023-11-21 22:11:30,088 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=947, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=951, PETRI_PLACES=468, PETRI_TRANSITIONS=470} [2023-11-21 22:11:30,089 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -28 predicate places. [2023-11-21 22:11:30,089 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 470 transitions, 951 flow [2023-11-21 22:11:30,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:30,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:30,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:11:30,092 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:30,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:30,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1274091111, now seen corresponding path program 1 times [2023-11-21 22:11:30,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:30,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748716458] [2023-11-21 22:11:30,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:30,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:30,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:30,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748716458] [2023-11-21 22:11:30,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748716458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:30,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:30,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:30,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176378590] [2023-11-21 22:11:30,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:30,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:30,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:30,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:30,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:30,203 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 505 out of 540 [2023-11-21 22:11:30,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 470 transitions, 951 flow. Second operand has 3 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:30,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 505 of 540 [2023-11-21 22:11:30,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:30,342 INFO L124 PetriNetUnfolderBase]: 28/750 cut-off events. [2023-11-21 22:11:30,342 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 22:11:30,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 804 conditions, 750 events. 28/750 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2678 event pairs, 15 based on Foata normal form. 0/666 useless extension candidates. Maximal degree in co-relation 765. Up to 40 conditions per place. [2023-11-21 22:11:30,351 INFO L140 encePairwiseOnDemand]: 537/540 looper letters, 12 selfloop transitions, 2 changer transitions 0/469 dead transitions. [2023-11-21 22:11:30,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 469 transitions, 977 flow [2023-11-21 22:11:30,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:30,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:30,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1530 transitions. [2023-11-21 22:11:30,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2023-11-21 22:11:30,357 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1530 transitions. [2023-11-21 22:11:30,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1530 transitions. [2023-11-21 22:11:30,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:30,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1530 transitions. [2023-11-21 22:11:30,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 510.0) internal successors, (1530), 3 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,370 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,370 INFO L175 Difference]: Start difference. First operand has 468 places, 470 transitions, 951 flow. Second operand 3 states and 1530 transitions. [2023-11-21 22:11:30,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 469 transitions, 977 flow [2023-11-21 22:11:30,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 469 transitions, 973 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:30,382 INFO L231 Difference]: Finished difference. Result has 467 places, 469 transitions, 949 flow [2023-11-21 22:11:30,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=949, PETRI_PLACES=467, PETRI_TRANSITIONS=469} [2023-11-21 22:11:30,384 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -29 predicate places. [2023-11-21 22:11:30,384 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 469 transitions, 949 flow [2023-11-21 22:11:30,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:30,386 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:30,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:11:30,386 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:30,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:30,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1944711573, now seen corresponding path program 1 times [2023-11-21 22:11:30,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:30,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903778136] [2023-11-21 22:11:30,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:30,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:30,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:30,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903778136] [2023-11-21 22:11:30,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903778136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:30,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:30,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:30,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042429102] [2023-11-21 22:11:30,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:30,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:30,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:30,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:30,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:30,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 540 [2023-11-21 22:11:30,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 469 transitions, 949 flow. Second operand has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:30,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 540 [2023-11-21 22:11:30,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:30,597 INFO L124 PetriNetUnfolderBase]: 13/582 cut-off events. [2023-11-21 22:11:30,598 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:11:30,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 582 events. 13/582 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1431 event pairs, 2 based on Foata normal form. 0/527 useless extension candidates. Maximal degree in co-relation 571. Up to 16 conditions per place. [2023-11-21 22:11:30,604 INFO L140 encePairwiseOnDemand]: 537/540 looper letters, 11 selfloop transitions, 2 changer transitions 0/468 dead transitions. [2023-11-21 22:11:30,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 468 transitions, 973 flow [2023-11-21 22:11:30,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:30,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1532 transitions. [2023-11-21 22:11:30,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.945679012345679 [2023-11-21 22:11:30,610 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1532 transitions. [2023-11-21 22:11:30,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1532 transitions. [2023-11-21 22:11:30,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:30,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1532 transitions. [2023-11-21 22:11:30,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 510.6666666666667) internal successors, (1532), 3 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,622 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,623 INFO L175 Difference]: Start difference. First operand has 467 places, 469 transitions, 949 flow. Second operand 3 states and 1532 transitions. [2023-11-21 22:11:30,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 468 transitions, 973 flow [2023-11-21 22:11:30,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 468 transitions, 969 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:30,634 INFO L231 Difference]: Finished difference. Result has 466 places, 468 transitions, 947 flow [2023-11-21 22:11:30,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=947, PETRI_PLACES=466, PETRI_TRANSITIONS=468} [2023-11-21 22:11:30,636 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -30 predicate places. [2023-11-21 22:11:30,636 INFO L495 AbstractCegarLoop]: Abstraction has has 466 places, 468 transitions, 947 flow [2023-11-21 22:11:30,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:30,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:30,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:11:30,638 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:30,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:30,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1934115300, now seen corresponding path program 1 times [2023-11-21 22:11:30,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:30,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760136815] [2023-11-21 22:11:30,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:30,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:30,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:30,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760136815] [2023-11-21 22:11:30,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760136815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:30,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:30,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:30,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204955395] [2023-11-21 22:11:30,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:30,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:30,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:30,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:30,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:30,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 505 out of 540 [2023-11-21 22:11:30,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 468 transitions, 947 flow. Second operand has 3 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:30,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 505 of 540 [2023-11-21 22:11:30,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:30,889 INFO L124 PetriNetUnfolderBase]: 26/751 cut-off events. [2023-11-21 22:11:30,890 INFO L125 PetriNetUnfolderBase]: For 10/11 co-relation queries the response was YES. [2023-11-21 22:11:30,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 751 events. 26/751 cut-off events. For 10/11 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2366 event pairs, 7 based on Foata normal form. 0/664 useless extension candidates. Maximal degree in co-relation 759. Up to 36 conditions per place. [2023-11-21 22:11:30,899 INFO L140 encePairwiseOnDemand]: 537/540 looper letters, 12 selfloop transitions, 2 changer transitions 0/467 dead transitions. [2023-11-21 22:11:30,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 467 transitions, 973 flow [2023-11-21 22:11:30,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:30,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:30,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1530 transitions. [2023-11-21 22:11:30,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2023-11-21 22:11:30,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1530 transitions. [2023-11-21 22:11:30,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1530 transitions. [2023-11-21 22:11:30,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:30,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1530 transitions. [2023-11-21 22:11:30,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 510.0) internal successors, (1530), 3 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,916 INFO L175 Difference]: Start difference. First operand has 466 places, 468 transitions, 947 flow. Second operand 3 states and 1530 transitions. [2023-11-21 22:11:30,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 467 transitions, 973 flow [2023-11-21 22:11:30,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 467 transitions, 969 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:30,927 INFO L231 Difference]: Finished difference. Result has 465 places, 467 transitions, 945 flow [2023-11-21 22:11:30,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=941, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=945, PETRI_PLACES=465, PETRI_TRANSITIONS=467} [2023-11-21 22:11:30,929 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -31 predicate places. [2023-11-21 22:11:30,930 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 467 transitions, 945 flow [2023-11-21 22:11:30,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:30,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:30,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:30,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:11:30,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:30,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:30,932 INFO L85 PathProgramCache]: Analyzing trace with hash -776776981, now seen corresponding path program 1 times [2023-11-21 22:11:30,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:30,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634349590] [2023-11-21 22:11:30,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:30,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:31,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:31,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:31,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634349590] [2023-11-21 22:11:31,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634349590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:31,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:31,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:31,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143818591] [2023-11-21 22:11:31,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:31,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:31,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:31,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:31,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:31,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 540 [2023-11-21 22:11:31,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 467 transitions, 945 flow. Second operand has 3 states, 3 states have (on average 503.0) internal successors, (1509), 3 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:31,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 540 [2023-11-21 22:11:31,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:31,198 INFO L124 PetriNetUnfolderBase]: 41/901 cut-off events. [2023-11-21 22:11:31,198 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-21 22:11:31,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 901 events. 41/901 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3735 event pairs, 20 based on Foata normal form. 0/790 useless extension candidates. Maximal degree in co-relation 930. Up to 56 conditions per place. [2023-11-21 22:11:31,208 INFO L140 encePairwiseOnDemand]: 535/540 looper letters, 14 selfloop transitions, 1 changer transitions 0/463 dead transitions. [2023-11-21 22:11:31,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 463 transitions, 967 flow [2023-11-21 22:11:31,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:31,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:31,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1525 transitions. [2023-11-21 22:11:31,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.941358024691358 [2023-11-21 22:11:31,214 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1525 transitions. [2023-11-21 22:11:31,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1525 transitions. [2023-11-21 22:11:31,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:31,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1525 transitions. [2023-11-21 22:11:31,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 508.3333333333333) internal successors, (1525), 3 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,225 INFO L175 Difference]: Start difference. First operand has 465 places, 467 transitions, 945 flow. Second operand 3 states and 1525 transitions. [2023-11-21 22:11:31,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 463 transitions, 967 flow [2023-11-21 22:11:31,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 463 transitions, 963 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:31,236 INFO L231 Difference]: Finished difference. Result has 461 places, 463 transitions, 935 flow [2023-11-21 22:11:31,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=935, PETRI_PLACES=461, PETRI_TRANSITIONS=463} [2023-11-21 22:11:31,238 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -35 predicate places. [2023-11-21 22:11:31,238 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 463 transitions, 935 flow [2023-11-21 22:11:31,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 503.0) internal successors, (1509), 3 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:31,240 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:31,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:11:31,240 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:31,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:31,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1676908734, now seen corresponding path program 1 times [2023-11-21 22:11:31,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:31,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394456125] [2023-11-21 22:11:31,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:31,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:31,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:31,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394456125] [2023-11-21 22:11:31,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394456125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:31,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:31,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:31,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410552131] [2023-11-21 22:11:31,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:31,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:31,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:31,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:31,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:31,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 508 out of 540 [2023-11-21 22:11:31,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 463 transitions, 935 flow. Second operand has 3 states, 3 states have (on average 509.3333333333333) internal successors, (1528), 3 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:31,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 508 of 540 [2023-11-21 22:11:31,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:31,457 INFO L124 PetriNetUnfolderBase]: 17/599 cut-off events. [2023-11-21 22:11:31,457 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2023-11-21 22:11:31,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 637 conditions, 599 events. 17/599 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1367 event pairs, 0 based on Foata normal form. 1/553 useless extension candidates. Maximal degree in co-relation 599. Up to 19 conditions per place. [2023-11-21 22:11:31,463 INFO L140 encePairwiseOnDemand]: 536/540 looper letters, 16 selfloop transitions, 2 changer transitions 0/468 dead transitions. [2023-11-21 22:11:31,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 468 transitions, 986 flow [2023-11-21 22:11:31,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:31,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:31,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1544 transitions. [2023-11-21 22:11:31,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9530864197530864 [2023-11-21 22:11:31,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1544 transitions. [2023-11-21 22:11:31,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1544 transitions. [2023-11-21 22:11:31,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:31,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1544 transitions. [2023-11-21 22:11:31,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 514.6666666666666) internal successors, (1544), 3 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,482 INFO L175 Difference]: Start difference. First operand has 461 places, 463 transitions, 935 flow. Second operand 3 states and 1544 transitions. [2023-11-21 22:11:31,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 468 transitions, 986 flow [2023-11-21 22:11:31,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 468 transitions, 985 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:11:31,494 INFO L231 Difference]: Finished difference. Result has 461 places, 463 transitions, 944 flow [2023-11-21 22:11:31,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=944, PETRI_PLACES=461, PETRI_TRANSITIONS=463} [2023-11-21 22:11:31,497 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -35 predicate places. [2023-11-21 22:11:31,497 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 463 transitions, 944 flow [2023-11-21 22:11:31,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 509.3333333333333) internal successors, (1528), 3 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:31,498 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:31,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:11:31,499 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:31,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:31,499 INFO L85 PathProgramCache]: Analyzing trace with hash -896517692, now seen corresponding path program 1 times [2023-11-21 22:11:31,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:31,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60090477] [2023-11-21 22:11:31,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:31,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:31,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:31,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:31,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60090477] [2023-11-21 22:11:31,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60090477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:31,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:31,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:31,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071514474] [2023-11-21 22:11:31,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:31,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:31,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:31,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:31,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:31,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 505 out of 540 [2023-11-21 22:11:31,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 463 transitions, 944 flow. Second operand has 3 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:31,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:31,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 505 of 540 [2023-11-21 22:11:31,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:32,134 INFO L124 PetriNetUnfolderBase]: 135/2030 cut-off events. [2023-11-21 22:11:32,134 INFO L125 PetriNetUnfolderBase]: For 35/36 co-relation queries the response was YES. [2023-11-21 22:11:32,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2254 conditions, 2030 events. 135/2030 cut-off events. For 35/36 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 13548 event pairs, 36 based on Foata normal form. 0/1776 useless extension candidates. Maximal degree in co-relation 2216. Up to 187 conditions per place. [2023-11-21 22:11:32,158 INFO L140 encePairwiseOnDemand]: 534/540 looper letters, 18 selfloop transitions, 3 changer transitions 0/468 dead transitions. [2023-11-21 22:11:32,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 468 transitions, 1001 flow [2023-11-21 22:11:32,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:32,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:32,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1539 transitions. [2023-11-21 22:11:32,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.95 [2023-11-21 22:11:32,164 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1539 transitions. [2023-11-21 22:11:32,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1539 transitions. [2023-11-21 22:11:32,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:32,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1539 transitions. [2023-11-21 22:11:32,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 513.0) internal successors, (1539), 3 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:32,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:32,175 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:32,175 INFO L175 Difference]: Start difference. First operand has 461 places, 463 transitions, 944 flow. Second operand 3 states and 1539 transitions. [2023-11-21 22:11:32,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 468 transitions, 1001 flow [2023-11-21 22:11:32,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 468 transitions, 1001 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:11:32,186 INFO L231 Difference]: Finished difference. Result has 461 places, 463 transitions, 959 flow [2023-11-21 22:11:32,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=959, PETRI_PLACES=461, PETRI_TRANSITIONS=463} [2023-11-21 22:11:32,187 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -35 predicate places. [2023-11-21 22:11:32,188 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 463 transitions, 959 flow [2023-11-21 22:11:32,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:32,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:32,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:32,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:11:32,189 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:32,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:32,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1015817932, now seen corresponding path program 1 times [2023-11-21 22:11:32,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:32,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529821154] [2023-11-21 22:11:32,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:32,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:32,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:32,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:32,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529821154] [2023-11-21 22:11:32,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529821154] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:32,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:32,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:32,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315108648] [2023-11-21 22:11:32,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:32,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:32,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:32,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:32,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:32,296 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 505 out of 540 [2023-11-21 22:11:32,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 463 transitions, 959 flow. Second operand has 3 states, 3 states have (on average 506.6666666666667) internal successors, (1520), 3 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:32,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:32,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 505 of 540 [2023-11-21 22:11:32,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:32,656 INFO L124 PetriNetUnfolderBase]: 148/1752 cut-off events. [2023-11-21 22:11:32,657 INFO L125 PetriNetUnfolderBase]: For 56/64 co-relation queries the response was YES. [2023-11-21 22:11:32,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2031 conditions, 1752 events. 148/1752 cut-off events. For 56/64 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 10832 event pairs, 22 based on Foata normal form. 2/1568 useless extension candidates. Maximal degree in co-relation 1992. Up to 170 conditions per place. [2023-11-21 22:11:32,677 INFO L140 encePairwiseOnDemand]: 534/540 looper letters, 17 selfloop transitions, 3 changer transitions 0/467 dead transitions. [2023-11-21 22:11:32,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 467 transitions, 1011 flow [2023-11-21 22:11:32,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:32,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:32,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1538 transitions. [2023-11-21 22:11:32,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9493827160493827 [2023-11-21 22:11:32,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1538 transitions. [2023-11-21 22:11:32,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1538 transitions. [2023-11-21 22:11:32,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:32,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1538 transitions. [2023-11-21 22:11:32,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 512.6666666666666) internal successors, (1538), 3 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:32,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:32,693 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:32,693 INFO L175 Difference]: Start difference. First operand has 461 places, 463 transitions, 959 flow. Second operand 3 states and 1538 transitions. [2023-11-21 22:11:32,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 467 transitions, 1011 flow [2023-11-21 22:11:32,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 467 transitions, 1011 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:11:32,705 INFO L231 Difference]: Finished difference. Result has 461 places, 463 transitions, 974 flow [2023-11-21 22:11:32,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=953, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=974, PETRI_PLACES=461, PETRI_TRANSITIONS=463} [2023-11-21 22:11:32,706 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -35 predicate places. [2023-11-21 22:11:32,706 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 463 transitions, 974 flow [2023-11-21 22:11:32,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 506.6666666666667) internal successors, (1520), 3 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:32,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:32,707 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:32,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:11:32,708 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:32,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:32,708 INFO L85 PathProgramCache]: Analyzing trace with hash -236868376, now seen corresponding path program 1 times [2023-11-21 22:11:32,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:32,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235947973] [2023-11-21 22:11:32,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:32,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:33,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:33,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:33,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235947973] [2023-11-21 22:11:33,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235947973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:33,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:33,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:11:33,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030773572] [2023-11-21 22:11:33,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:33,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:11:33,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:33,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:11:33,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:11:33,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 540 [2023-11-21 22:11:33,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 463 transitions, 974 flow. Second operand has 7 states, 7 states have (on average 478.2857142857143) internal successors, (3348), 7 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:33,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:33,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 540 [2023-11-21 22:11:33,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:34,108 INFO L124 PetriNetUnfolderBase]: 106/2094 cut-off events. [2023-11-21 22:11:34,108 INFO L125 PetriNetUnfolderBase]: For 26/48 co-relation queries the response was YES. [2023-11-21 22:11:34,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2462 conditions, 2094 events. 106/2094 cut-off events. For 26/48 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 11058 event pairs, 20 based on Foata normal form. 4/1936 useless extension candidates. Maximal degree in co-relation 2420. Up to 76 conditions per place. [2023-11-21 22:11:34,132 INFO L140 encePairwiseOnDemand]: 503/540 looper letters, 49 selfloop transitions, 56 changer transitions 0/520 dead transitions. [2023-11-21 22:11:34,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 520 transitions, 1306 flow [2023-11-21 22:11:34,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:11:34,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-21 22:11:34,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4836 transitions. [2023-11-21 22:11:34,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8955555555555555 [2023-11-21 22:11:34,148 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4836 transitions. [2023-11-21 22:11:34,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4836 transitions. [2023-11-21 22:11:34,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:34,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4836 transitions. [2023-11-21 22:11:34,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 483.6) internal successors, (4836), 10 states have internal predecessors, (4836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:34,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 540.0) internal successors, (5940), 11 states have internal predecessors, (5940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:34,181 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 540.0) internal successors, (5940), 11 states have internal predecessors, (5940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:34,181 INFO L175 Difference]: Start difference. First operand has 461 places, 463 transitions, 974 flow. Second operand 10 states and 4836 transitions. [2023-11-21 22:11:34,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 520 transitions, 1306 flow [2023-11-21 22:11:34,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 520 transitions, 1306 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:11:34,195 INFO L231 Difference]: Finished difference. Result has 474 places, 497 transitions, 1229 flow [2023-11-21 22:11:34,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=974, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1229, PETRI_PLACES=474, PETRI_TRANSITIONS=497} [2023-11-21 22:11:34,197 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -22 predicate places. [2023-11-21 22:11:34,197 INFO L495 AbstractCegarLoop]: Abstraction has has 474 places, 497 transitions, 1229 flow [2023-11-21 22:11:34,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 478.2857142857143) internal successors, (3348), 7 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:34,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:34,199 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:34,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:11:34,199 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:34,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:34,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1917604174, now seen corresponding path program 1 times [2023-11-21 22:11:34,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:34,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300029845] [2023-11-21 22:11:34,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:34,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:35,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:35,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:35,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300029845] [2023-11-21 22:11:35,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300029845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:35,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:35,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:35,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728186034] [2023-11-21 22:11:35,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:35,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:35,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:35,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:35,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:35,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 540 [2023-11-21 22:11:35,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 497 transitions, 1229 flow. Second operand has 6 states, 6 states have (on average 478.6666666666667) internal successors, (2872), 6 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:35,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:35,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 540 [2023-11-21 22:11:35,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:43,223 INFO L124 PetriNetUnfolderBase]: 6963/27571 cut-off events. [2023-11-21 22:11:43,223 INFO L125 PetriNetUnfolderBase]: For 252/453 co-relation queries the response was YES. [2023-11-21 22:11:43,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39185 conditions, 27571 events. 6963/27571 cut-off events. For 252/453 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 318521 event pairs, 1989 based on Foata normal form. 161/24986 useless extension candidates. Maximal degree in co-relation 39135. Up to 8041 conditions per place. [2023-11-21 22:11:43,583 INFO L140 encePairwiseOnDemand]: 522/540 looper letters, 44 selfloop transitions, 53 changer transitions 0/552 dead transitions. [2023-11-21 22:11:43,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 552 transitions, 1536 flow [2023-11-21 22:11:43,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:43,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:43,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2960 transitions. [2023-11-21 22:11:43,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9135802469135802 [2023-11-21 22:11:43,593 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2960 transitions. [2023-11-21 22:11:43,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2960 transitions. [2023-11-21 22:11:43,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:43,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2960 transitions. [2023-11-21 22:11:43,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 493.3333333333333) internal successors, (2960), 6 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:43,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:43,613 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 540.0) internal successors, (3780), 7 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:43,613 INFO L175 Difference]: Start difference. First operand has 474 places, 497 transitions, 1229 flow. Second operand 6 states and 2960 transitions. [2023-11-21 22:11:43,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 552 transitions, 1536 flow [2023-11-21 22:11:43,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 552 transitions, 1536 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:11:43,685 INFO L231 Difference]: Finished difference. Result has 484 places, 549 transitions, 1579 flow [2023-11-21 22:11:43,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=1229, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=480, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1579, PETRI_PLACES=484, PETRI_TRANSITIONS=549} [2023-11-21 22:11:43,689 INFO L281 CegarLoopForPetriNet]: 496 programPoint places, -12 predicate places. [2023-11-21 22:11:43,689 INFO L495 AbstractCegarLoop]: Abstraction has has 484 places, 549 transitions, 1579 flow [2023-11-21 22:11:43,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 478.6666666666667) internal successors, (2872), 6 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:43,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:43,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:43,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:11:43,691 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-21 22:11:43,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:43,692 INFO L85 PathProgramCache]: Analyzing trace with hash -637524774, now seen corresponding path program 1 times [2023-11-21 22:11:43,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:43,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104685369] [2023-11-21 22:11:43,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:43,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:43,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:43,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:43,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104685369] [2023-11-21 22:11:43,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104685369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:43,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:43,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:43,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025848835] [2023-11-21 22:11:43,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:43,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:11:43,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:43,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:11:43,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:11:43,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 540 [2023-11-21 22:11:43,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 549 transitions, 1579 flow. Second operand has 5 states, 5 states have (on average 504.0) internal successors, (2520), 5 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:43,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:43,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 540 [2023-11-21 22:11:43,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand