./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/unroll-cond-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/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_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/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_63271278-8c5b-4085-9342-9f7348805d8c/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 4f5c6e2b4939ff0e3b5a44ab7f8c3e5d18f7e9fd12beb8fad487ea501e8fa48b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:17:28,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:17:28,911 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:17:28,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:17:28,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:17:28,944 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:17:28,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:17:28,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:17:28,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:17:28,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:17:28,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:17:28,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:17:28,950 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:17:28,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:17:28,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:17:28,952 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:17:28,952 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:17:28,953 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:17:28,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:17:28,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:17:28,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:17:28,959 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:17:28,959 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:17:28,960 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:17:28,960 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:17:28,961 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:17:28,961 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:17:28,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:17:28,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:17:28,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:17:28,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:17:28,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:17:28,964 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:17:28,964 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:17:28,965 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:17:28,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:17:28,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:17:28,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:17:28,967 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:17:28,967 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:17:28,968 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:17:28,976 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_63271278-8c5b-4085-9342-9f7348805d8c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5c6e2b4939ff0e3b5a44ab7f8c3e5d18f7e9fd12beb8fad487ea501e8fa48b [2023-11-21 22:17:29,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:17:29,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:17:29,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:17:29,263 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:17:29,263 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:17:29,265 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/unroll-cond-2.wvr.c [2023-11-21 22:17:32,447 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:17:32,675 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:17:32,676 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/sv-benchmarks/c/weaver/unroll-cond-2.wvr.c [2023-11-21 22:17:32,684 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx/data/e4cf3cfd0/5bf2a3326fbd4ffaa30bb2eaafc55a52/FLAG6f815ffeb [2023-11-21 22:17:32,699 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx/data/e4cf3cfd0/5bf2a3326fbd4ffaa30bb2eaafc55a52 [2023-11-21 22:17:32,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:17:32,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:17:32,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:17:32,706 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:17:32,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:17:32,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:17:32" (1/1) ... [2023-11-21 22:17:32,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@530bf429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:32, skipping insertion in model container [2023-11-21 22:17:32,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:17:32" (1/1) ... [2023-11-21 22:17:32,741 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:17:32,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:17:32,958 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:17:33,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:17:33,019 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:17:33,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:33 WrapperNode [2023-11-21 22:17:33,019 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:17:33,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:17:33,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:17:33,021 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:17:33,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:33" (1/1) ... [2023-11-21 22:17:33,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:33" (1/1) ... [2023-11-21 22:17:33,085 INFO L138 Inliner]: procedures = 24, calls = 34, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 283 [2023-11-21 22:17:33,096 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:17:33,097 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:17:33,098 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:17:33,098 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:17:33,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:33" (1/1) ... [2023-11-21 22:17:33,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:33" (1/1) ... [2023-11-21 22:17:33,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:33" (1/1) ... [2023-11-21 22:17:33,117 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:33" (1/1) ... [2023-11-21 22:17:33,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:33" (1/1) ... [2023-11-21 22:17:33,139 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:33" (1/1) ... [2023-11-21 22:17:33,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:33" (1/1) ... [2023-11-21 22:17:33,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:33" (1/1) ... [2023-11-21 22:17:33,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:17:33,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:17:33,151 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:17:33,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:17:33,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:33" (1/1) ... [2023-11-21 22:17:33,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:17:33,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:17:33,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:17:33,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:17:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:17:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:17:33,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:17:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:17:33,253 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:17:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:17:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:17:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:17:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:17:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:17:33,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:17:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:17:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:17:33,256 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 22:17:33,418 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:17:33,420 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:17:34,157 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:17:34,175 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:17:34,176 INFO L308 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-21 22:17:34,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:17:34 BoogieIcfgContainer [2023-11-21 22:17:34,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:17:34,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:17:34,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:17:34,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:17:34,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:17:32" (1/3) ... [2023-11-21 22:17:34,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167394f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:17:34, skipping insertion in model container [2023-11-21 22:17:34,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:33" (2/3) ... [2023-11-21 22:17:34,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167394f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:17:34, skipping insertion in model container [2023-11-21 22:17:34,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:17:34" (3/3) ... [2023-11-21 22:17:34,187 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-2.wvr.c [2023-11-21 22:17:34,196 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:17:34,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:17:34,208 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2023-11-21 22:17:34,208 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:17:34,347 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:17:34,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 351 places, 363 transitions, 740 flow [2023-11-21 22:17:34,532 INFO L124 PetriNetUnfolderBase]: 19/361 cut-off events. [2023-11-21 22:17:34,533 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:17:34,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 361 events. 19/361 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 804 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 224. Up to 2 conditions per place. [2023-11-21 22:17:34,546 INFO L82 GeneralOperation]: Start removeDead. Operand has 351 places, 363 transitions, 740 flow [2023-11-21 22:17:34,561 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 340 transitions, 692 flow [2023-11-21 22:17:34,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:17:34,585 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;@6f61ca0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:17:34,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2023-11-21 22:17:34,592 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:17:34,592 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2023-11-21 22:17:34,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:17:34,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:34,593 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] [2023-11-21 22:17:34,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:34,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:34,601 INFO L85 PathProgramCache]: Analyzing trace with hash 18747718, now seen corresponding path program 1 times [2023-11-21 22:17:34,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:34,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980155841] [2023-11-21 22:17:34,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:34,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:34,788 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 22:17:34,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:34,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980155841] [2023-11-21 22:17:34,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980155841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:34,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:34,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:17:34,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098777882] [2023-11-21 22:17:34,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:34,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:17:34,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:34,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:34,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:34,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 363 [2023-11-21 22:17:34,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 340 transitions, 692 flow. Second operand has 3 states, 3 states have (on average 338.3333333333333) internal successors, (1015), 3 states have internal predecessors, (1015), 0 states have call successors, (0), 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 22:17:34,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:34,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 363 [2023-11-21 22:17:34,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:35,024 INFO L124 PetriNetUnfolderBase]: 19/508 cut-off events. [2023-11-21 22:17:35,024 INFO L125 PetriNetUnfolderBase]: For 15/19 co-relation queries the response was YES. [2023-11-21 22:17:35,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 508 events. 19/508 cut-off events. For 15/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2049 event pairs, 5 based on Foata normal form. 13/431 useless extension candidates. Maximal degree in co-relation 390. Up to 24 conditions per place. [2023-11-21 22:17:35,035 INFO L140 encePairwiseOnDemand]: 350/363 looper letters, 10 selfloop transitions, 2 changer transitions 3/329 dead transitions. [2023-11-21 22:17:35,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 329 transitions, 694 flow [2023-11-21 22:17:35,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:17:35,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:17:35,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1034 transitions. [2023-11-21 22:17:35,056 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9494949494949495 [2023-11-21 22:17:35,057 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1034 transitions. [2023-11-21 22:17:35,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1034 transitions. [2023-11-21 22:17:35,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:35,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1034 transitions. [2023-11-21 22:17:35,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.6666666666667) internal successors, (1034), 3 states have internal predecessors, (1034), 0 states have call successors, (0), 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 22:17:35,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:35,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:35,084 INFO L175 Difference]: Start difference. First operand has 329 places, 340 transitions, 692 flow. Second operand 3 states and 1034 transitions. [2023-11-21 22:17:35,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 329 transitions, 694 flow [2023-11-21 22:17:35,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 329 transitions, 686 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:17:35,100 INFO L231 Difference]: Finished difference. Result has 326 places, 326 transitions, 660 flow [2023-11-21 22:17:35,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=326, PETRI_TRANSITIONS=326} [2023-11-21 22:17:35,106 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -3 predicate places. [2023-11-21 22:17:35,107 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 326 transitions, 660 flow [2023-11-21 22:17:35,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.3333333333333) internal successors, (1015), 3 states have internal predecessors, (1015), 0 states have call successors, (0), 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 22:17:35,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:35,108 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] [2023-11-21 22:17:35,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:17:35,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:35,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:35,110 INFO L85 PathProgramCache]: Analyzing trace with hash 962975069, now seen corresponding path program 1 times [2023-11-21 22:17:35,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:35,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626471966] [2023-11-21 22:17:35,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:35,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,170 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 22:17:35,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:35,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626471966] [2023-11-21 22:17:35,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626471966] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:35,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:35,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:17:35,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657465263] [2023-11-21 22:17:35,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:35,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:17:35,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:35,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:35,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:35,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 363 [2023-11-21 22:17:35,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 326 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 0 states have call successors, (0), 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 22:17:35,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:35,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 363 [2023-11-21 22:17:35,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:35,384 INFO L124 PetriNetUnfolderBase]: 20/515 cut-off events. [2023-11-21 22:17:35,384 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-21 22:17:35,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 515 events. 20/515 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1929 event pairs, 7 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 524. Up to 28 conditions per place. [2023-11-21 22:17:35,392 INFO L140 encePairwiseOnDemand]: 360/363 looper letters, 13 selfloop transitions, 2 changer transitions 0/325 dead transitions. [2023-11-21 22:17:35,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 325 transitions, 688 flow [2023-11-21 22:17:35,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:17:35,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:17:35,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1018 transitions. [2023-11-21 22:17:35,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9348025711662076 [2023-11-21 22:17:35,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1018 transitions. [2023-11-21 22:17:35,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1018 transitions. [2023-11-21 22:17:35,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:35,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1018 transitions. [2023-11-21 22:17:35,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 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 22:17:35,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:35,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:35,411 INFO L175 Difference]: Start difference. First operand has 326 places, 326 transitions, 660 flow. Second operand 3 states and 1018 transitions. [2023-11-21 22:17:35,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 325 transitions, 688 flow [2023-11-21 22:17:35,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 325 transitions, 684 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:17:35,422 INFO L231 Difference]: Finished difference. Result has 322 places, 325 transitions, 658 flow [2023-11-21 22:17:35,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=322, PETRI_TRANSITIONS=325} [2023-11-21 22:17:35,424 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -7 predicate places. [2023-11-21 22:17:35,424 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 325 transitions, 658 flow [2023-11-21 22:17:35,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 0 states have call successors, (0), 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 22:17:35,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:35,427 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] [2023-11-21 22:17:35,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:17:35,430 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:35,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:35,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1095513102, now seen corresponding path program 1 times [2023-11-21 22:17:35,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:35,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391507473] [2023-11-21 22:17:35,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:35,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,531 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 22:17:35,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:35,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391507473] [2023-11-21 22:17:35,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391507473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:35,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:35,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:17:35,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587197758] [2023-11-21 22:17:35,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:35,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:17:35,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:35,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:35,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:35,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 363 [2023-11-21 22:17:35,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 325 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 0 states have call successors, (0), 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 22:17:35,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:35,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 363 [2023-11-21 22:17:35,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:35,861 INFO L124 PetriNetUnfolderBase]: 66/1012 cut-off events. [2023-11-21 22:17:35,861 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-21 22:17:35,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 1012 events. 66/1012 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5283 event pairs, 20 based on Foata normal form. 0/829 useless extension candidates. Maximal degree in co-relation 1063. Up to 77 conditions per place. [2023-11-21 22:17:35,877 INFO L140 encePairwiseOnDemand]: 356/363 looper letters, 16 selfloop transitions, 1 changer transitions 0/319 dead transitions. [2023-11-21 22:17:35,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 319 transitions, 680 flow [2023-11-21 22:17:35,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:17:35,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:17:35,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1007 transitions. [2023-11-21 22:17:35,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9247015610651974 [2023-11-21 22:17:35,885 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1007 transitions. [2023-11-21 22:17:35,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1007 transitions. [2023-11-21 22:17:35,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:35,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1007 transitions. [2023-11-21 22:17:35,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 335.6666666666667) internal successors, (1007), 3 states have internal predecessors, (1007), 0 states have call successors, (0), 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 22:17:35,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:35,897 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:35,897 INFO L175 Difference]: Start difference. First operand has 322 places, 325 transitions, 658 flow. Second operand 3 states and 1007 transitions. [2023-11-21 22:17:35,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 319 transitions, 680 flow [2023-11-21 22:17:35,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 319 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:17:35,908 INFO L231 Difference]: Finished difference. Result has 316 places, 319 transitions, 644 flow [2023-11-21 22:17:35,908 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=644, PETRI_PLACES=316, PETRI_TRANSITIONS=319} [2023-11-21 22:17:35,910 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -13 predicate places. [2023-11-21 22:17:35,911 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 319 transitions, 644 flow [2023-11-21 22:17:35,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 0 states have call successors, (0), 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 22:17:35,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:35,912 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:17:35,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:17:35,913 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:35,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:35,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1875978115, now seen corresponding path program 1 times [2023-11-21 22:17:35,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:35,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010180279] [2023-11-21 22:17:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:35,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:36,101 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 22:17:36,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:36,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010180279] [2023-11-21 22:17:36,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010180279] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:36,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:36,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:17:36,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646282744] [2023-11-21 22:17:36,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:36,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:17:36,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:36,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:36,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:36,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 363 [2023-11-21 22:17:36,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 319 transitions, 644 flow. Second operand has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 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 22:17:36,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:36,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 363 [2023-11-21 22:17:36,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:36,305 INFO L124 PetriNetUnfolderBase]: 20/505 cut-off events. [2023-11-21 22:17:36,305 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-21 22:17:36,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 505 events. 20/505 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1820 event pairs, 7 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 503. Up to 26 conditions per place. [2023-11-21 22:17:36,313 INFO L140 encePairwiseOnDemand]: 360/363 looper letters, 11 selfloop transitions, 2 changer transitions 0/318 dead transitions. [2023-11-21 22:17:36,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 318 transitions, 668 flow [2023-11-21 22:17:36,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:17:36,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:17:36,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1022 transitions. [2023-11-21 22:17:36,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.938475665748393 [2023-11-21 22:17:36,319 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1022 transitions. [2023-11-21 22:17:36,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1022 transitions. [2023-11-21 22:17:36,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:36,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1022 transitions. [2023-11-21 22:17:36,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.6666666666667) internal successors, (1022), 3 states have internal predecessors, (1022), 0 states have call successors, (0), 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 22:17:36,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:36,330 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:36,330 INFO L175 Difference]: Start difference. First operand has 316 places, 319 transitions, 644 flow. Second operand 3 states and 1022 transitions. [2023-11-21 22:17:36,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 318 transitions, 668 flow [2023-11-21 22:17:36,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 318 transitions, 667 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:17:36,339 INFO L231 Difference]: Finished difference. Result has 316 places, 318 transitions, 645 flow [2023-11-21 22:17:36,340 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=645, PETRI_PLACES=316, PETRI_TRANSITIONS=318} [2023-11-21 22:17:36,342 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -13 predicate places. [2023-11-21 22:17:36,342 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 318 transitions, 645 flow [2023-11-21 22:17:36,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 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 22:17:36,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:36,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:17:36,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:17:36,345 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:36,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:36,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1408137484, now seen corresponding path program 1 times [2023-11-21 22:17:36,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:36,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282498496] [2023-11-21 22:17:36,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:36,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:37,103 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 22:17:37,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:37,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282498496] [2023-11-21 22:17:37,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282498496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:37,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:37,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:17:37,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776507732] [2023-11-21 22:17:37,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:37,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:17:37,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:37,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:17:37,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:17:37,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 363 [2023-11-21 22:17:37,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 318 transitions, 645 flow. Second operand has 6 states, 6 states have (on average 310.5) internal successors, (1863), 6 states have internal predecessors, (1863), 0 states have call successors, (0), 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 22:17:37,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:37,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 363 [2023-11-21 22:17:37,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:38,587 INFO L124 PetriNetUnfolderBase]: 835/5834 cut-off events. [2023-11-21 22:17:38,587 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-11-21 22:17:38,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6950 conditions, 5834 events. 835/5834 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 56871 event pairs, 560 based on Foata normal form. 0/4723 useless extension candidates. Maximal degree in co-relation 6915. Up to 1100 conditions per place. [2023-11-21 22:17:38,749 INFO L140 encePairwiseOnDemand]: 357/363 looper letters, 36 selfloop transitions, 5 changer transitions 0/317 dead transitions. [2023-11-21 22:17:38,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 317 transitions, 725 flow [2023-11-21 22:17:38,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:17:38,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:17:38,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1896 transitions. [2023-11-21 22:17:38,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8705234159779615 [2023-11-21 22:17:38,763 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1896 transitions. [2023-11-21 22:17:38,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1896 transitions. [2023-11-21 22:17:38,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:38,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1896 transitions. [2023-11-21 22:17:38,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 0 states have call successors, (0), 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 22:17:38,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 363.0) internal successors, (2541), 7 states have internal predecessors, (2541), 0 states have call successors, (0), 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 22:17:38,788 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 363.0) internal successors, (2541), 7 states have internal predecessors, (2541), 0 states have call successors, (0), 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 22:17:38,788 INFO L175 Difference]: Start difference. First operand has 316 places, 318 transitions, 645 flow. Second operand 6 states and 1896 transitions. [2023-11-21 22:17:38,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 317 transitions, 725 flow [2023-11-21 22:17:38,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 317 transitions, 721 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:17:38,800 INFO L231 Difference]: Finished difference. Result has 318 places, 317 transitions, 649 flow [2023-11-21 22:17:38,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=649, PETRI_PLACES=318, PETRI_TRANSITIONS=317} [2023-11-21 22:17:38,805 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -11 predicate places. [2023-11-21 22:17:38,805 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 317 transitions, 649 flow [2023-11-21 22:17:38,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 310.5) internal successors, (1863), 6 states have internal predecessors, (1863), 0 states have call successors, (0), 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 22:17:38,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:38,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:17:38,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:17:38,809 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:38,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:38,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1961257969, now seen corresponding path program 1 times [2023-11-21 22:17:38,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:38,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420891302] [2023-11-21 22:17:38,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:38,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:38,922 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 22:17:38,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:38,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420891302] [2023-11-21 22:17:38,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420891302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:38,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:38,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:17:38,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144987504] [2023-11-21 22:17:38,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:38,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:17:38,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:38,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:38,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:38,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 363 [2023-11-21 22:17:38,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 317 transitions, 649 flow. Second operand has 3 states, 3 states have (on average 338.3333333333333) internal successors, (1015), 3 states have internal predecessors, (1015), 0 states have call successors, (0), 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 22:17:38,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:38,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 363 [2023-11-21 22:17:38,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:39,185 INFO L124 PetriNetUnfolderBase]: 44/859 cut-off events. [2023-11-21 22:17:39,185 INFO L125 PetriNetUnfolderBase]: For 6/19 co-relation queries the response was YES. [2023-11-21 22:17:39,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 859 events. 44/859 cut-off events. For 6/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4540 event pairs, 8 based on Foata normal form. 1/719 useless extension candidates. Maximal degree in co-relation 903. Up to 46 conditions per place. [2023-11-21 22:17:39,197 INFO L140 encePairwiseOnDemand]: 358/363 looper letters, 12 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2023-11-21 22:17:39,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 317 transitions, 678 flow [2023-11-21 22:17:39,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:17:39,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:17:39,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1028 transitions. [2023-11-21 22:17:39,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9439853076216712 [2023-11-21 22:17:39,204 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1028 transitions. [2023-11-21 22:17:39,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1028 transitions. [2023-11-21 22:17:39,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:39,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1028 transitions. [2023-11-21 22:17:39,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.6666666666667) internal successors, (1028), 3 states have internal predecessors, (1028), 0 states have call successors, (0), 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 22:17:39,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:39,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:39,216 INFO L175 Difference]: Start difference. First operand has 318 places, 317 transitions, 649 flow. Second operand 3 states and 1028 transitions. [2023-11-21 22:17:39,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 317 transitions, 678 flow [2023-11-21 22:17:39,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 317 transitions, 668 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:17:39,234 INFO L231 Difference]: Finished difference. Result has 313 places, 316 transitions, 647 flow [2023-11-21 22:17:39,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=647, PETRI_PLACES=313, PETRI_TRANSITIONS=316} [2023-11-21 22:17:39,240 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -16 predicate places. [2023-11-21 22:17:39,240 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 316 transitions, 647 flow [2023-11-21 22:17:39,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.3333333333333) internal successors, (1015), 3 states have internal predecessors, (1015), 0 states have call successors, (0), 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 22:17:39,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:39,242 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] [2023-11-21 22:17:39,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:17:39,242 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:39,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:39,243 INFO L85 PathProgramCache]: Analyzing trace with hash 899777470, now seen corresponding path program 1 times [2023-11-21 22:17:39,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:39,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042983290] [2023-11-21 22:17:39,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:39,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:39,317 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 22:17:39,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:39,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042983290] [2023-11-21 22:17:39,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042983290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:39,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:39,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:17:39,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502502706] [2023-11-21 22:17:39,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:39,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:17:39,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:39,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:39,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:39,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 363 [2023-11-21 22:17:39,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 316 transitions, 647 flow. Second operand has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 0 states have call successors, (0), 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 22:17:39,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:39,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 363 [2023-11-21 22:17:39,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:39,449 INFO L124 PetriNetUnfolderBase]: 26/510 cut-off events. [2023-11-21 22:17:39,449 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-21 22:17:39,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 510 events. 26/510 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1904 event pairs, 1 based on Foata normal form. 1/443 useless extension candidates. Maximal degree in co-relation 529. Up to 21 conditions per place. [2023-11-21 22:17:39,457 INFO L140 encePairwiseOnDemand]: 356/363 looper letters, 11 selfloop transitions, 3 changer transitions 0/313 dead transitions. [2023-11-21 22:17:39,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 313 transitions, 670 flow [2023-11-21 22:17:39,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:17:39,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:17:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1020 transitions. [2023-11-21 22:17:39,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9366391184573003 [2023-11-21 22:17:39,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1020 transitions. [2023-11-21 22:17:39,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1020 transitions. [2023-11-21 22:17:39,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:39,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1020 transitions. [2023-11-21 22:17:39,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 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 22:17:39,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:39,473 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:39,473 INFO L175 Difference]: Start difference. First operand has 313 places, 316 transitions, 647 flow. Second operand 3 states and 1020 transitions. [2023-11-21 22:17:39,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 313 transitions, 670 flow [2023-11-21 22:17:39,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 313 transitions, 670 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:17:39,482 INFO L231 Difference]: Finished difference. Result has 311 places, 312 transitions, 645 flow [2023-11-21 22:17:39,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=645, PETRI_PLACES=311, PETRI_TRANSITIONS=312} [2023-11-21 22:17:39,484 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -18 predicate places. [2023-11-21 22:17:39,484 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 312 transitions, 645 flow [2023-11-21 22:17:39,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 0 states have call successors, (0), 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 22:17:39,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:39,486 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] [2023-11-21 22:17:39,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:17:39,486 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:39,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:39,487 INFO L85 PathProgramCache]: Analyzing trace with hash 2058234527, now seen corresponding path program 1 times [2023-11-21 22:17:39,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:39,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370823583] [2023-11-21 22:17:39,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:39,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:39,539 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 22:17:39,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:39,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370823583] [2023-11-21 22:17:39,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370823583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:39,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:39,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:17:39,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003774813] [2023-11-21 22:17:39,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:39,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:17:39,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:39,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:39,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:39,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 363 [2023-11-21 22:17:39,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 312 transitions, 645 flow. Second operand has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 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 22:17:39,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:39,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 363 [2023-11-21 22:17:39,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:39,764 INFO L124 PetriNetUnfolderBase]: 43/589 cut-off events. [2023-11-21 22:17:39,765 INFO L125 PetriNetUnfolderBase]: For 24/28 co-relation queries the response was YES. [2023-11-21 22:17:39,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 589 events. 43/589 cut-off events. For 24/28 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2646 event pairs, 3 based on Foata normal form. 3/531 useless extension candidates. Maximal degree in co-relation 666. Up to 75 conditions per place. [2023-11-21 22:17:39,772 INFO L140 encePairwiseOnDemand]: 346/363 looper letters, 19 selfloop transitions, 6 changer transitions 5/303 dead transitions. [2023-11-21 22:17:39,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 303 transitions, 682 flow [2023-11-21 22:17:39,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:17:39,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:17:39,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 979 transitions. [2023-11-21 22:17:39,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.898989898989899 [2023-11-21 22:17:39,778 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 979 transitions. [2023-11-21 22:17:39,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 979 transitions. [2023-11-21 22:17:39,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:39,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 979 transitions. [2023-11-21 22:17:39,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 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 22:17:39,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:39,790 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:39,790 INFO L175 Difference]: Start difference. First operand has 311 places, 312 transitions, 645 flow. Second operand 3 states and 979 transitions. [2023-11-21 22:17:39,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 303 transitions, 682 flow [2023-11-21 22:17:39,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 303 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:17:39,800 INFO L231 Difference]: Finished difference. Result has 301 places, 297 transitions, 620 flow [2023-11-21 22:17:39,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=619, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=301, PETRI_TRANSITIONS=297} [2023-11-21 22:17:39,804 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -28 predicate places. [2023-11-21 22:17:39,804 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 297 transitions, 620 flow [2023-11-21 22:17:39,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 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 22:17:39,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:39,806 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] [2023-11-21 22:17:39,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:17:39,806 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:39,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:39,808 INFO L85 PathProgramCache]: Analyzing trace with hash 102216931, now seen corresponding path program 1 times [2023-11-21 22:17:39,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:39,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870446017] [2023-11-21 22:17:39,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:39,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:40,428 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 22:17:40,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:40,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870446017] [2023-11-21 22:17:40,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870446017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:40,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:40,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:17:40,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173221477] [2023-11-21 22:17:40,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:40,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:17:40,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:40,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:17:40,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:17:40,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 363 [2023-11-21 22:17:40,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 297 transitions, 620 flow. Second operand has 6 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 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 22:17:40,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:40,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 363 [2023-11-21 22:17:40,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:41,057 INFO L124 PetriNetUnfolderBase]: 15/429 cut-off events. [2023-11-21 22:17:41,057 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:17:41,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472 conditions, 429 events. 15/429 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1262 event pairs, 0 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 434. Up to 9 conditions per place. [2023-11-21 22:17:41,063 INFO L140 encePairwiseOnDemand]: 358/363 looper letters, 10 selfloop transitions, 4 changer transitions 0/296 dead transitions. [2023-11-21 22:17:41,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 296 transitions, 646 flow [2023-11-21 22:17:41,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:17:41,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:17:41,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2013 transitions. [2023-11-21 22:17:41,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9242424242424242 [2023-11-21 22:17:41,071 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2013 transitions. [2023-11-21 22:17:41,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2013 transitions. [2023-11-21 22:17:41,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:41,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2013 transitions. [2023-11-21 22:17:41,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.5) internal successors, (2013), 6 states have internal predecessors, (2013), 0 states have call successors, (0), 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 22:17:41,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 363.0) internal successors, (2541), 7 states have internal predecessors, (2541), 0 states have call successors, (0), 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 22:17:41,086 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 363.0) internal successors, (2541), 7 states have internal predecessors, (2541), 0 states have call successors, (0), 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 22:17:41,087 INFO L175 Difference]: Start difference. First operand has 301 places, 297 transitions, 620 flow. Second operand 6 states and 2013 transitions. [2023-11-21 22:17:41,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 296 transitions, 646 flow [2023-11-21 22:17:41,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 296 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:17:41,095 INFO L231 Difference]: Finished difference. Result has 298 places, 296 transitions, 614 flow [2023-11-21 22:17:41,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=614, PETRI_PLACES=298, PETRI_TRANSITIONS=296} [2023-11-21 22:17:41,097 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -31 predicate places. [2023-11-21 22:17:41,098 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 296 transitions, 614 flow [2023-11-21 22:17:41,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 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 22:17:41,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:41,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:17:41,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:17:41,118 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:41,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:41,119 INFO L85 PathProgramCache]: Analyzing trace with hash 76411100, now seen corresponding path program 1 times [2023-11-21 22:17:41,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:41,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169866345] [2023-11-21 22:17:41,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:41,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:41,176 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 22:17:41,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:41,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169866345] [2023-11-21 22:17:41,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169866345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:41,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:41,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:17:41,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885073951] [2023-11-21 22:17:41,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:41,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:17:41,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:41,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:41,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:41,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 363 [2023-11-21 22:17:41,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 296 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 0 states have call successors, (0), 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 22:17:41,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:41,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 363 [2023-11-21 22:17:41,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:41,387 INFO L124 PetriNetUnfolderBase]: 69/1047 cut-off events. [2023-11-21 22:17:41,387 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-21 22:17:41,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 1047 events. 69/1047 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5549 event pairs, 7 based on Foata normal form. 0/937 useless extension candidates. Maximal degree in co-relation 1116. Up to 69 conditions per place. [2023-11-21 22:17:41,398 INFO L140 encePairwiseOnDemand]: 356/363 looper letters, 14 selfloop transitions, 3 changer transitions 0/297 dead transitions. [2023-11-21 22:17:41,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 297 transitions, 652 flow [2023-11-21 22:17:41,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:17:41,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:17:41,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1023 transitions. [2023-11-21 22:17:41,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9393939393939394 [2023-11-21 22:17:41,403 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1023 transitions. [2023-11-21 22:17:41,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1023 transitions. [2023-11-21 22:17:41,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:41,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1023 transitions. [2023-11-21 22:17:41,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 341.0) internal successors, (1023), 3 states have internal predecessors, (1023), 0 states have call successors, (0), 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 22:17:41,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:41,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:41,411 INFO L175 Difference]: Start difference. First operand has 298 places, 296 transitions, 614 flow. Second operand 3 states and 1023 transitions. [2023-11-21 22:17:41,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 297 transitions, 652 flow [2023-11-21 22:17:41,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 297 transitions, 645 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:17:41,419 INFO L231 Difference]: Finished difference. Result has 293 places, 295 transitions, 620 flow [2023-11-21 22:17:41,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=599, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=293, PETRI_TRANSITIONS=295} [2023-11-21 22:17:41,422 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -36 predicate places. [2023-11-21 22:17:41,422 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 295 transitions, 620 flow [2023-11-21 22:17:41,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 0 states have call successors, (0), 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 22:17:41,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:41,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:17:41,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:17:41,424 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:41,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:41,425 INFO L85 PathProgramCache]: Analyzing trace with hash -179068030, now seen corresponding path program 1 times [2023-11-21 22:17:41,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:41,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459352117] [2023-11-21 22:17:41,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:41,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:41,610 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 22:17:41,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:41,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459352117] [2023-11-21 22:17:41,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459352117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:41,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:41,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:17:41,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464846670] [2023-11-21 22:17:41,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:41,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:17:41,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:41,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:17:41,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:17:41,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 363 [2023-11-21 22:17:41,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 295 transitions, 620 flow. Second operand has 4 states, 4 states have (on average 341.25) internal successors, (1365), 4 states have internal predecessors, (1365), 0 states have call successors, (0), 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 22:17:41,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:41,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 363 [2023-11-21 22:17:41,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:41,873 INFO L124 PetriNetUnfolderBase]: 67/1299 cut-off events. [2023-11-21 22:17:41,873 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2023-11-21 22:17:41,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1418 conditions, 1299 events. 67/1299 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7316 event pairs, 5 based on Foata normal form. 1/1166 useless extension candidates. Maximal degree in co-relation 1381. Up to 31 conditions per place. [2023-11-21 22:17:41,889 INFO L140 encePairwiseOnDemand]: 357/363 looper letters, 13 selfloop transitions, 6 changer transitions 0/304 dead transitions. [2023-11-21 22:17:41,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 304 transitions, 680 flow [2023-11-21 22:17:41,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:17:41,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:17:41,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1720 transitions. [2023-11-21 22:17:41,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9476584022038568 [2023-11-21 22:17:41,896 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1720 transitions. [2023-11-21 22:17:41,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1720 transitions. [2023-11-21 22:17:41,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:41,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1720 transitions. [2023-11-21 22:17:41,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 344.0) internal successors, (1720), 5 states have internal predecessors, (1720), 0 states have call successors, (0), 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 22:17:41,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 363.0) internal successors, (2178), 6 states have internal predecessors, (2178), 0 states have call successors, (0), 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 22:17:41,908 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 363.0) internal successors, (2178), 6 states have internal predecessors, (2178), 0 states have call successors, (0), 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 22:17:41,908 INFO L175 Difference]: Start difference. First operand has 293 places, 295 transitions, 620 flow. Second operand 5 states and 1720 transitions. [2023-11-21 22:17:41,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 304 transitions, 680 flow [2023-11-21 22:17:41,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 304 transitions, 680 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:17:41,917 INFO L231 Difference]: Finished difference. Result has 300 places, 299 transitions, 658 flow [2023-11-21 22:17:41,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=658, PETRI_PLACES=300, PETRI_TRANSITIONS=299} [2023-11-21 22:17:41,918 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -29 predicate places. [2023-11-21 22:17:41,918 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 299 transitions, 658 flow [2023-11-21 22:17:41,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 341.25) internal successors, (1365), 4 states have internal predecessors, (1365), 0 states have call successors, (0), 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 22:17:41,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:41,919 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] [2023-11-21 22:17:41,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:17:41,920 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:41,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:41,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1474764100, now seen corresponding path program 1 times [2023-11-21 22:17:41,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:41,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206220520] [2023-11-21 22:17:41,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:41,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:42,426 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 22:17:42,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:42,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206220520] [2023-11-21 22:17:42,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206220520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:42,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:42,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:17:42,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227986087] [2023-11-21 22:17:42,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:42,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:17:42,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:42,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:17:42,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:17:42,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 363 [2023-11-21 22:17:42,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 299 transitions, 658 flow. Second operand has 6 states, 6 states have (on average 334.6666666666667) internal successors, (2008), 6 states have internal predecessors, (2008), 0 states have call successors, (0), 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 22:17:42,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:42,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 363 [2023-11-21 22:17:42,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:42,988 INFO L124 PetriNetUnfolderBase]: 40/864 cut-off events. [2023-11-21 22:17:42,988 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2023-11-21 22:17:42,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 956 conditions, 864 events. 40/864 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3870 event pairs, 3 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 913. Up to 22 conditions per place. [2023-11-21 22:17:42,998 INFO L140 encePairwiseOnDemand]: 358/363 looper letters, 10 selfloop transitions, 4 changer transitions 0/298 dead transitions. [2023-11-21 22:17:42,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 298 transitions, 684 flow [2023-11-21 22:17:42,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:17:42,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:17:43,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2013 transitions. [2023-11-21 22:17:43,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9242424242424242 [2023-11-21 22:17:43,007 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2013 transitions. [2023-11-21 22:17:43,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2013 transitions. [2023-11-21 22:17:43,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:43,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2013 transitions. [2023-11-21 22:17:43,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.5) internal successors, (2013), 6 states have internal predecessors, (2013), 0 states have call successors, (0), 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 22:17:43,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 363.0) internal successors, (2541), 7 states have internal predecessors, (2541), 0 states have call successors, (0), 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 22:17:43,023 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 363.0) internal successors, (2541), 7 states have internal predecessors, (2541), 0 states have call successors, (0), 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 22:17:43,023 INFO L175 Difference]: Start difference. First operand has 300 places, 299 transitions, 658 flow. Second operand 6 states and 2013 transitions. [2023-11-21 22:17:43,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 298 transitions, 684 flow [2023-11-21 22:17:43,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 298 transitions, 684 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:17:43,033 INFO L231 Difference]: Finished difference. Result has 304 places, 298 transitions, 664 flow [2023-11-21 22:17:43,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=664, PETRI_PLACES=304, PETRI_TRANSITIONS=298} [2023-11-21 22:17:43,034 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -25 predicate places. [2023-11-21 22:17:43,035 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 298 transitions, 664 flow [2023-11-21 22:17:43,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 334.6666666666667) internal successors, (2008), 6 states have internal predecessors, (2008), 0 states have call successors, (0), 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 22:17:43,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:43,036 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] [2023-11-21 22:17:43,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:17:43,037 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:43,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:43,037 INFO L85 PathProgramCache]: Analyzing trace with hash -831975863, now seen corresponding path program 1 times [2023-11-21 22:17:43,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:43,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171328213] [2023-11-21 22:17:43,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:43,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:43,541 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 22:17:43,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:43,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171328213] [2023-11-21 22:17:43,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171328213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:43,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:43,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:17:43,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068139889] [2023-11-21 22:17:43,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:43,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:17:43,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:43,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:17:43,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:17:44,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 363 [2023-11-21 22:17:44,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 298 transitions, 664 flow. Second operand has 6 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 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 22:17:44,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:44,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 363 [2023-11-21 22:17:44,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:44,244 INFO L124 PetriNetUnfolderBase]: 56/999 cut-off events. [2023-11-21 22:17:44,245 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-21 22:17:44,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 999 events. 56/999 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4984 event pairs, 4 based on Foata normal form. 0/907 useless extension candidates. Maximal degree in co-relation 1127. Up to 24 conditions per place. [2023-11-21 22:17:44,258 INFO L140 encePairwiseOnDemand]: 357/363 looper letters, 15 selfloop transitions, 6 changer transitions 0/301 dead transitions. [2023-11-21 22:17:44,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 301 transitions, 716 flow [2023-11-21 22:17:44,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:17:44,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:17:44,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2019 transitions. [2023-11-21 22:17:44,267 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9269972451790633 [2023-11-21 22:17:44,267 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2019 transitions. [2023-11-21 22:17:44,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2019 transitions. [2023-11-21 22:17:44,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:44,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2019 transitions. [2023-11-21 22:17:44,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 336.5) internal successors, (2019), 6 states have internal predecessors, (2019), 0 states have call successors, (0), 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 22:17:44,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 363.0) internal successors, (2541), 7 states have internal predecessors, (2541), 0 states have call successors, (0), 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 22:17:44,283 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 363.0) internal successors, (2541), 7 states have internal predecessors, (2541), 0 states have call successors, (0), 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 22:17:44,283 INFO L175 Difference]: Start difference. First operand has 304 places, 298 transitions, 664 flow. Second operand 6 states and 2019 transitions. [2023-11-21 22:17:44,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 301 transitions, 716 flow [2023-11-21 22:17:44,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 301 transitions, 709 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:17:44,296 INFO L231 Difference]: Finished difference. Result has 304 places, 297 transitions, 667 flow [2023-11-21 22:17:44,297 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=667, PETRI_PLACES=304, PETRI_TRANSITIONS=297} [2023-11-21 22:17:44,298 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -25 predicate places. [2023-11-21 22:17:44,298 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 297 transitions, 667 flow [2023-11-21 22:17:44,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 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 22:17:44,299 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:44,300 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] [2023-11-21 22:17:44,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:17:44,300 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:44,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:44,301 INFO L85 PathProgramCache]: Analyzing trace with hash 106676396, now seen corresponding path program 1 times [2023-11-21 22:17:44,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:44,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058621479] [2023-11-21 22:17:44,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:44,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:44,433 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 22:17:44,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:44,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058621479] [2023-11-21 22:17:44,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058621479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:44,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:44,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:17:44,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140757062] [2023-11-21 22:17:44,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:44,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:17:44,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:44,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:17:44,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:17:44,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 363 [2023-11-21 22:17:44,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 297 transitions, 667 flow. Second operand has 4 states, 4 states have (on average 339.5) internal successors, (1358), 4 states have internal predecessors, (1358), 0 states have call successors, (0), 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 22:17:44,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:44,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 363 [2023-11-21 22:17:44,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:44,829 INFO L124 PetriNetUnfolderBase]: 81/1367 cut-off events. [2023-11-21 22:17:44,829 INFO L125 PetriNetUnfolderBase]: For 36/37 co-relation queries the response was YES. [2023-11-21 22:17:44,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 1367 events. 81/1367 cut-off events. For 36/37 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7357 event pairs, 10 based on Foata normal form. 0/1241 useless extension candidates. Maximal degree in co-relation 1559. Up to 67 conditions per place. [2023-11-21 22:17:44,843 INFO L140 encePairwiseOnDemand]: 356/363 looper letters, 14 selfloop transitions, 7 changer transitions 0/306 dead transitions. [2023-11-21 22:17:44,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 306 transitions, 730 flow [2023-11-21 22:17:44,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:17:44,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:17:44,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1712 transitions. [2023-11-21 22:17:44,850 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9432506887052342 [2023-11-21 22:17:44,850 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1712 transitions. [2023-11-21 22:17:44,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1712 transitions. [2023-11-21 22:17:44,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:44,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1712 transitions. [2023-11-21 22:17:44,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 342.4) internal successors, (1712), 5 states have internal predecessors, (1712), 0 states have call successors, (0), 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 22:17:44,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 363.0) internal successors, (2178), 6 states have internal predecessors, (2178), 0 states have call successors, (0), 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 22:17:44,862 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 363.0) internal successors, (2178), 6 states have internal predecessors, (2178), 0 states have call successors, (0), 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 22:17:44,863 INFO L175 Difference]: Start difference. First operand has 304 places, 297 transitions, 667 flow. Second operand 5 states and 1712 transitions. [2023-11-21 22:17:44,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 306 transitions, 730 flow [2023-11-21 22:17:44,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 306 transitions, 718 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:17:44,873 INFO L231 Difference]: Finished difference. Result has 306 places, 302 transitions, 701 flow [2023-11-21 22:17:44,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=701, PETRI_PLACES=306, PETRI_TRANSITIONS=302} [2023-11-21 22:17:44,874 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -23 predicate places. [2023-11-21 22:17:44,875 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 302 transitions, 701 flow [2023-11-21 22:17:44,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 339.5) internal successors, (1358), 4 states have internal predecessors, (1358), 0 states have call successors, (0), 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 22:17:44,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:44,876 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] [2023-11-21 22:17:44,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:17:44,876 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:44,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:44,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1958230044, now seen corresponding path program 1 times [2023-11-21 22:17:44,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:44,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867909296] [2023-11-21 22:17:44,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:44,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:44,988 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 22:17:44,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:44,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867909296] [2023-11-21 22:17:44,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867909296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:44,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:44,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:17:44,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835615257] [2023-11-21 22:17:44,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:44,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:17:44,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:44,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:17:44,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:17:45,090 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 363 [2023-11-21 22:17:45,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 302 transitions, 701 flow. Second operand has 4 states, 4 states have (on average 339.5) internal successors, (1358), 4 states have internal predecessors, (1358), 0 states have call successors, (0), 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 22:17:45,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:45,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 363 [2023-11-21 22:17:45,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:45,367 INFO L124 PetriNetUnfolderBase]: 78/1360 cut-off events. [2023-11-21 22:17:45,368 INFO L125 PetriNetUnfolderBase]: For 92/93 co-relation queries the response was YES. [2023-11-21 22:17:45,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1650 conditions, 1360 events. 78/1360 cut-off events. For 92/93 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 7268 event pairs, 10 based on Foata normal form. 0/1245 useless extension candidates. Maximal degree in co-relation 1603. Up to 67 conditions per place. [2023-11-21 22:17:45,382 INFO L140 encePairwiseOnDemand]: 356/363 looper letters, 14 selfloop transitions, 7 changer transitions 0/309 dead transitions. [2023-11-21 22:17:45,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 309 transitions, 760 flow [2023-11-21 22:17:45,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:17:45,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:17:45,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1712 transitions. [2023-11-21 22:17:45,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9432506887052342 [2023-11-21 22:17:45,388 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1712 transitions. [2023-11-21 22:17:45,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1712 transitions. [2023-11-21 22:17:45,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:45,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1712 transitions. [2023-11-21 22:17:45,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 342.4) internal successors, (1712), 5 states have internal predecessors, (1712), 0 states have call successors, (0), 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 22:17:45,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 363.0) internal successors, (2178), 6 states have internal predecessors, (2178), 0 states have call successors, (0), 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 22:17:45,400 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 363.0) internal successors, (2178), 6 states have internal predecessors, (2178), 0 states have call successors, (0), 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 22:17:45,401 INFO L175 Difference]: Start difference. First operand has 306 places, 302 transitions, 701 flow. Second operand 5 states and 1712 transitions. [2023-11-21 22:17:45,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 309 transitions, 760 flow [2023-11-21 22:17:45,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 309 transitions, 760 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:17:45,410 INFO L231 Difference]: Finished difference. Result has 313 places, 305 transitions, 739 flow [2023-11-21 22:17:45,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=739, PETRI_PLACES=313, PETRI_TRANSITIONS=305} [2023-11-21 22:17:45,412 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -16 predicate places. [2023-11-21 22:17:45,413 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 305 transitions, 739 flow [2023-11-21 22:17:45,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 339.5) internal successors, (1358), 4 states have internal predecessors, (1358), 0 states have call successors, (0), 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 22:17:45,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:45,414 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] [2023-11-21 22:17:45,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:17:45,414 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:45,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:45,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1020535244, now seen corresponding path program 1 times [2023-11-21 22:17:45,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:45,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333948795] [2023-11-21 22:17:45,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:45,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,471 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 22:17:45,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:45,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333948795] [2023-11-21 22:17:45,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333948795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:45,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:45,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:17:45,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493968318] [2023-11-21 22:17:45,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:45,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:17:45,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:45,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:45,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:45,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 363 [2023-11-21 22:17:45,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 305 transitions, 739 flow. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 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 22:17:45,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:45,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 363 [2023-11-21 22:17:45,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:45,725 INFO L124 PetriNetUnfolderBase]: 56/1112 cut-off events. [2023-11-21 22:17:45,725 INFO L125 PetriNetUnfolderBase]: For 85/86 co-relation queries the response was YES. [2023-11-21 22:17:45,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 1112 events. 56/1112 cut-off events. For 85/86 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5113 event pairs, 14 based on Foata normal form. 0/1031 useless extension candidates. Maximal degree in co-relation 1349. Up to 41 conditions per place. [2023-11-21 22:17:45,741 INFO L140 encePairwiseOnDemand]: 360/363 looper letters, 9 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2023-11-21 22:17:45,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 305 transitions, 762 flow [2023-11-21 22:17:45,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:17:45,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:17:45,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1026 transitions. [2023-11-21 22:17:45,745 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9421487603305785 [2023-11-21 22:17:45,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1026 transitions. [2023-11-21 22:17:45,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1026 transitions. [2023-11-21 22:17:45,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:45,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1026 transitions. [2023-11-21 22:17:45,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 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 22:17:45,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:45,753 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:45,754 INFO L175 Difference]: Start difference. First operand has 313 places, 305 transitions, 739 flow. Second operand 3 states and 1026 transitions. [2023-11-21 22:17:45,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 305 transitions, 762 flow [2023-11-21 22:17:45,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 305 transitions, 762 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:17:45,763 INFO L231 Difference]: Finished difference. Result has 314 places, 304 transitions, 741 flow [2023-11-21 22:17:45,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=741, PETRI_PLACES=314, PETRI_TRANSITIONS=304} [2023-11-21 22:17:45,765 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -15 predicate places. [2023-11-21 22:17:45,765 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 304 transitions, 741 flow [2023-11-21 22:17:45,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 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 22:17:45,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:45,768 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] [2023-11-21 22:17:45,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:17:45,769 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:45,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:45,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1369349079, now seen corresponding path program 1 times [2023-11-21 22:17:45,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:45,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415665060] [2023-11-21 22:17:45,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:45,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:46,266 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 22:17:46,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:46,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415665060] [2023-11-21 22:17:46,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415665060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:46,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:46,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:17:46,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442807354] [2023-11-21 22:17:46,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:46,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:17:46,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:46,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:17:46,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:17:46,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 363 [2023-11-21 22:17:46,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 304 transitions, 741 flow. Second operand has 6 states, 6 states have (on average 320.6666666666667) internal successors, (1924), 6 states have internal predecessors, (1924), 0 states have call successors, (0), 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 22:17:46,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:46,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 363 [2023-11-21 22:17:46,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:47,035 INFO L124 PetriNetUnfolderBase]: 104/1169 cut-off events. [2023-11-21 22:17:47,036 INFO L125 PetriNetUnfolderBase]: For 165/166 co-relation queries the response was YES. [2023-11-21 22:17:47,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 1169 events. 104/1169 cut-off events. For 165/166 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6262 event pairs, 12 based on Foata normal form. 0/1101 useless extension candidates. Maximal degree in co-relation 1606. Up to 80 conditions per place. [2023-11-21 22:17:47,053 INFO L140 encePairwiseOnDemand]: 345/363 looper letters, 17 selfloop transitions, 17 changer transitions 0/305 dead transitions. [2023-11-21 22:17:47,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 305 transitions, 815 flow [2023-11-21 22:17:47,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:17:47,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:17:47,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1949 transitions. [2023-11-21 22:17:47,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8948576675849403 [2023-11-21 22:17:47,062 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1949 transitions. [2023-11-21 22:17:47,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1949 transitions. [2023-11-21 22:17:47,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:47,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1949 transitions. [2023-11-21 22:17:47,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 324.8333333333333) internal successors, (1949), 6 states have internal predecessors, (1949), 0 states have call successors, (0), 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 22:17:47,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 363.0) internal successors, (2541), 7 states have internal predecessors, (2541), 0 states have call successors, (0), 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 22:17:47,078 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 363.0) internal successors, (2541), 7 states have internal predecessors, (2541), 0 states have call successors, (0), 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 22:17:47,078 INFO L175 Difference]: Start difference. First operand has 314 places, 304 transitions, 741 flow. Second operand 6 states and 1949 transitions. [2023-11-21 22:17:47,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 305 transitions, 815 flow [2023-11-21 22:17:47,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 305 transitions, 811 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:17:47,088 INFO L231 Difference]: Finished difference. Result has 314 places, 301 transitions, 765 flow [2023-11-21 22:17:47,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=765, PETRI_PLACES=314, PETRI_TRANSITIONS=301} [2023-11-21 22:17:47,089 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -15 predicate places. [2023-11-21 22:17:47,090 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 301 transitions, 765 flow [2023-11-21 22:17:47,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 320.6666666666667) internal successors, (1924), 6 states have internal predecessors, (1924), 0 states have call successors, (0), 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 22:17:47,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:47,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:17:47,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 22:17:47,092 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:47,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:47,092 INFO L85 PathProgramCache]: Analyzing trace with hash -394793091, now seen corresponding path program 1 times [2023-11-21 22:17:47,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:47,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539080925] [2023-11-21 22:17:47,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:47,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:47,147 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 22:17:47,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:47,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539080925] [2023-11-21 22:17:47,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539080925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:47,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:47,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:17:47,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067273141] [2023-11-21 22:17:47,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:47,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:17:47,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:47,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:47,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:47,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 363 [2023-11-21 22:17:47,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 301 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 332.6666666666667) internal successors, (998), 3 states have internal predecessors, (998), 0 states have call successors, (0), 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 22:17:47,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:47,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 363 [2023-11-21 22:17:47,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:47,495 INFO L124 PetriNetUnfolderBase]: 97/1404 cut-off events. [2023-11-21 22:17:47,495 INFO L125 PetriNetUnfolderBase]: For 207/209 co-relation queries the response was YES. [2023-11-21 22:17:47,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1992 conditions, 1404 events. 97/1404 cut-off events. For 207/209 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8120 event pairs, 44 based on Foata normal form. 0/1331 useless extension candidates. Maximal degree in co-relation 1940. Up to 154 conditions per place. [2023-11-21 22:17:47,514 INFO L140 encePairwiseOnDemand]: 360/363 looper letters, 17 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2023-11-21 22:17:47,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 301 transitions, 804 flow [2023-11-21 22:17:47,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:17:47,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:17:47,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2023-11-21 22:17:47,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9274563820018366 [2023-11-21 22:17:47,519 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1010 transitions. [2023-11-21 22:17:47,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1010 transitions. [2023-11-21 22:17:47,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:47,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1010 transitions. [2023-11-21 22:17:47,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 0 states have call successors, (0), 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 22:17:47,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:47,527 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:47,527 INFO L175 Difference]: Start difference. First operand has 314 places, 301 transitions, 765 flow. Second operand 3 states and 1010 transitions. [2023-11-21 22:17:47,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 301 transitions, 804 flow [2023-11-21 22:17:47,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 301 transitions, 770 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:17:47,538 INFO L231 Difference]: Finished difference. Result has 310 places, 300 transitions, 733 flow [2023-11-21 22:17:47,539 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=733, PETRI_PLACES=310, PETRI_TRANSITIONS=300} [2023-11-21 22:17:47,539 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -19 predicate places. [2023-11-21 22:17:47,539 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 300 transitions, 733 flow [2023-11-21 22:17:47,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.6666666666667) internal successors, (998), 3 states have internal predecessors, (998), 0 states have call successors, (0), 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 22:17:47,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:47,540 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] [2023-11-21 22:17:47,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 22:17:47,541 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:47,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:47,542 INFO L85 PathProgramCache]: Analyzing trace with hash 633629380, now seen corresponding path program 1 times [2023-11-21 22:17:47,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:47,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689358283] [2023-11-21 22:17:47,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:47,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:47,593 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 22:17:47,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:47,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689358283] [2023-11-21 22:17:47,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689358283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:47,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:47,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:17:47,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664060813] [2023-11-21 22:17:47,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:47,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:17:47,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:47,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:47,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:47,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 363 [2023-11-21 22:17:47,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 300 transitions, 733 flow. Second operand has 3 states, 3 states have (on average 332.6666666666667) internal successors, (998), 3 states have internal predecessors, (998), 0 states have call successors, (0), 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 22:17:47,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:47,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 363 [2023-11-21 22:17:47,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:48,002 INFO L124 PetriNetUnfolderBase]: 98/1405 cut-off events. [2023-11-21 22:17:48,011 INFO L125 PetriNetUnfolderBase]: For 157/159 co-relation queries the response was YES. [2023-11-21 22:17:48,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1860 conditions, 1405 events. 98/1405 cut-off events. For 157/159 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8115 event pairs, 44 based on Foata normal form. 0/1337 useless extension candidates. Maximal degree in co-relation 1808. Up to 154 conditions per place. [2023-11-21 22:17:48,031 INFO L140 encePairwiseOnDemand]: 360/363 looper letters, 16 selfloop transitions, 2 changer transitions 1/300 dead transitions. [2023-11-21 22:17:48,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 300 transitions, 772 flow [2023-11-21 22:17:48,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:17:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:17:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2023-11-21 22:17:48,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9274563820018366 [2023-11-21 22:17:48,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1010 transitions. [2023-11-21 22:17:48,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1010 transitions. [2023-11-21 22:17:48,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:48,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1010 transitions. [2023-11-21 22:17:48,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 0 states have call successors, (0), 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 22:17:48,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:48,046 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:48,046 INFO L175 Difference]: Start difference. First operand has 310 places, 300 transitions, 733 flow. Second operand 3 states and 1010 transitions. [2023-11-21 22:17:48,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 300 transitions, 772 flow [2023-11-21 22:17:48,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 300 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:17:48,056 INFO L231 Difference]: Finished difference. Result has 309 places, 299 transitions, 731 flow [2023-11-21 22:17:48,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=731, PETRI_PLACES=309, PETRI_TRANSITIONS=299} [2023-11-21 22:17:48,058 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -20 predicate places. [2023-11-21 22:17:48,058 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 299 transitions, 731 flow [2023-11-21 22:17:48,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.6666666666667) internal successors, (998), 3 states have internal predecessors, (998), 0 states have call successors, (0), 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 22:17:48,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:17:48,059 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] [2023-11-21 22:17:48,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-21 22:17:48,060 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-11-21 22:17:48,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:48,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1352426232, now seen corresponding path program 1 times [2023-11-21 22:17:48,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:48,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984528132] [2023-11-21 22:17:48,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:48,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:48,127 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 22:17:48,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:48,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984528132] [2023-11-21 22:17:48,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984528132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:48,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:48,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:17:48,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894004972] [2023-11-21 22:17:48,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:48,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:17:48,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:48,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:48,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:48,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 363 [2023-11-21 22:17:48,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 299 transitions, 731 flow. Second operand has 3 states, 3 states have (on average 333.6666666666667) internal successors, (1001), 3 states have internal predecessors, (1001), 0 states have call successors, (0), 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 22:17:48,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:17:48,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 363 [2023-11-21 22:17:48,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:17:48,567 INFO L124 PetriNetUnfolderBase]: 97/1393 cut-off events. [2023-11-21 22:17:48,567 INFO L125 PetriNetUnfolderBase]: For 158/160 co-relation queries the response was YES. [2023-11-21 22:17:48,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1848 conditions, 1393 events. 97/1393 cut-off events. For 158/160 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 8053 event pairs, 44 based on Foata normal form. 0/1331 useless extension candidates. Maximal degree in co-relation 1796. Up to 154 conditions per place. [2023-11-21 22:17:48,584 INFO L140 encePairwiseOnDemand]: 360/363 looper letters, 0 selfloop transitions, 0 changer transitions 299/299 dead transitions. [2023-11-21 22:17:48,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 299 transitions, 770 flow [2023-11-21 22:17:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:17:48,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:17:48,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2023-11-21 22:17:48,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9274563820018366 [2023-11-21 22:17:48,590 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1010 transitions. [2023-11-21 22:17:48,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1010 transitions. [2023-11-21 22:17:48,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:17:48,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1010 transitions. [2023-11-21 22:17:48,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 0 states have call successors, (0), 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 22:17:48,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:48,601 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 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 22:17:48,601 INFO L175 Difference]: Start difference. First operand has 309 places, 299 transitions, 731 flow. Second operand 3 states and 1010 transitions. [2023-11-21 22:17:48,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 299 transitions, 770 flow [2023-11-21 22:17:48,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 299 transitions, 766 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:17:48,608 INFO L231 Difference]: Finished difference. Result has 308 places, 0 transitions, 0 flow [2023-11-21 22:17:48,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=308, PETRI_TRANSITIONS=0} [2023-11-21 22:17:48,609 INFO L281 CegarLoopForPetriNet]: 329 programPoint places, -21 predicate places. [2023-11-21 22:17:48,609 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 0 transitions, 0 flow [2023-11-21 22:17:48,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.6666666666667) internal successors, (1001), 3 states have internal predecessors, (1001), 0 states have call successors, (0), 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 22:17:48,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (73 of 74 remaining) [2023-11-21 22:17:48,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (72 of 74 remaining) [2023-11-21 22:17:48,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (71 of 74 remaining) [2023-11-21 22:17:48,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (70 of 74 remaining) [2023-11-21 22:17:48,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (69 of 74 remaining) [2023-11-21 22:17:48,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (68 of 74 remaining) [2023-11-21 22:17:48,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (67 of 74 remaining) [2023-11-21 22:17:48,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (66 of 74 remaining) [2023-11-21 22:17:48,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (65 of 74 remaining) [2023-11-21 22:17:48,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (64 of 74 remaining) [2023-11-21 22:17:48,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (63 of 74 remaining) [2023-11-21 22:17:48,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (62 of 74 remaining) [2023-11-21 22:17:48,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (61 of 74 remaining) [2023-11-21 22:17:48,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (60 of 74 remaining) [2023-11-21 22:17:48,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (59 of 74 remaining) [2023-11-21 22:17:48,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (58 of 74 remaining) [2023-11-21 22:17:48,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (57 of 74 remaining) [2023-11-21 22:17:48,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (56 of 74 remaining) [2023-11-21 22:17:48,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (55 of 74 remaining) [2023-11-21 22:17:48,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (54 of 74 remaining) [2023-11-21 22:17:48,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (53 of 74 remaining) [2023-11-21 22:17:48,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (52 of 74 remaining) [2023-11-21 22:17:48,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (51 of 74 remaining) [2023-11-21 22:17:48,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (50 of 74 remaining) [2023-11-21 22:17:48,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (49 of 74 remaining) [2023-11-21 22:17:48,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (48 of 74 remaining) [2023-11-21 22:17:48,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (47 of 74 remaining) [2023-11-21 22:17:48,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (46 of 74 remaining) [2023-11-21 22:17:48,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (45 of 74 remaining) [2023-11-21 22:17:48,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (44 of 74 remaining) [2023-11-21 22:17:48,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (43 of 74 remaining) [2023-11-21 22:17:48,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 74 remaining) [2023-11-21 22:17:48,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 74 remaining) [2023-11-21 22:17:48,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 74 remaining) [2023-11-21 22:17:48,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 74 remaining) [2023-11-21 22:17:48,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (38 of 74 remaining) [2023-11-21 22:17:48,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (37 of 74 remaining) [2023-11-21 22:17:48,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (36 of 74 remaining) [2023-11-21 22:17:48,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (35 of 74 remaining) [2023-11-21 22:17:48,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 74 remaining) [2023-11-21 22:17:48,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 74 remaining) [2023-11-21 22:17:48,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 74 remaining) [2023-11-21 22:17:48,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 74 remaining) [2023-11-21 22:17:48,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (30 of 74 remaining) [2023-11-21 22:17:48,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (29 of 74 remaining) [2023-11-21 22:17:48,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (28 of 74 remaining) [2023-11-21 22:17:48,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (27 of 74 remaining) [2023-11-21 22:17:48,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (26 of 74 remaining) [2023-11-21 22:17:48,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (25 of 74 remaining) [2023-11-21 22:17:48,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (24 of 74 remaining) [2023-11-21 22:17:48,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (23 of 74 remaining) [2023-11-21 22:17:48,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (22 of 74 remaining) [2023-11-21 22:17:48,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (21 of 74 remaining) [2023-11-21 22:17:48,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 74 remaining) [2023-11-21 22:17:48,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (19 of 74 remaining) [2023-11-21 22:17:48,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (18 of 74 remaining) [2023-11-21 22:17:48,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (17 of 74 remaining) [2023-11-21 22:17:48,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 74 remaining) [2023-11-21 22:17:48,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (15 of 74 remaining) [2023-11-21 22:17:48,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (14 of 74 remaining) [2023-11-21 22:17:48,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (13 of 74 remaining) [2023-11-21 22:17:48,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (12 of 74 remaining) [2023-11-21 22:17:48,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (11 of 74 remaining) [2023-11-21 22:17:48,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (10 of 74 remaining) [2023-11-21 22:17:48,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (9 of 74 remaining) [2023-11-21 22:17:48,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (8 of 74 remaining) [2023-11-21 22:17:48,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (7 of 74 remaining) [2023-11-21 22:17:48,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (6 of 74 remaining) [2023-11-21 22:17:48,630 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (5 of 74 remaining) [2023-11-21 22:17:48,630 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (4 of 74 remaining) [2023-11-21 22:17:48,630 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (3 of 74 remaining) [2023-11-21 22:17:48,630 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (2 of 74 remaining) [2023-11-21 22:17:48,630 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (1 of 74 remaining) [2023-11-21 22:17:48,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (0 of 74 remaining) [2023-11-21 22:17:48,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 22:17:48,631 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:17:48,639 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:17:48,640 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:17:48,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:17:48 BasicIcfg [2023-11-21 22:17:48,648 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:17:48,649 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:17:48,649 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:17:48,649 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:17:48,650 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:17:34" (3/4) ... [2023-11-21 22:17:48,652 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:17:48,656 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-21 22:17:48,657 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-21 22:17:48,665 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-21 22:17:48,666 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 22:17:48,667 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:17:48,667 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:17:48,800 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:17:48,800 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:17:48,800 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:17:48,801 INFO L158 Benchmark]: Toolchain (without parser) took 16097.61ms. Allocated memory was 180.4MB in the beginning and 471.9MB in the end (delta: 291.5MB). Free memory was 145.0MB in the beginning and 301.7MB in the end (delta: -156.7MB). Peak memory consumption was 137.2MB. Max. memory is 16.1GB. [2023-11-21 22:17:48,801 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:17:48,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.63ms. Allocated memory is still 180.4MB. Free memory was 145.0MB in the beginning and 132.3MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:17:48,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.05ms. Allocated memory is still 180.4MB. Free memory was 132.3MB in the beginning and 129.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:17:48,804 INFO L158 Benchmark]: Boogie Preprocessor took 52.02ms. Allocated memory is still 180.4MB. Free memory was 129.5MB in the beginning and 127.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:17:48,804 INFO L158 Benchmark]: RCFGBuilder took 1027.55ms. Allocated memory is still 180.4MB. Free memory was 127.0MB in the beginning and 151.0MB in the end (delta: -24.0MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2023-11-21 22:17:48,805 INFO L158 Benchmark]: TraceAbstraction took 14467.46ms. Allocated memory was 180.4MB in the beginning and 471.9MB in the end (delta: 291.5MB). Free memory was 149.5MB in the beginning and 307.9MB in the end (delta: -158.5MB). Peak memory consumption was 277.7MB. Max. memory is 16.1GB. [2023-11-21 22:17:48,805 INFO L158 Benchmark]: Witness Printer took 152.02ms. Allocated memory is still 471.9MB. Free memory was 307.9MB in the beginning and 301.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 22:17:48,807 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.63ms. Allocated memory is still 180.4MB. Free memory was 145.0MB in the beginning and 132.3MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.05ms. Allocated memory is still 180.4MB. Free memory was 132.3MB in the beginning and 129.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.02ms. Allocated memory is still 180.4MB. Free memory was 129.5MB in the beginning and 127.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1027.55ms. Allocated memory is still 180.4MB. Free memory was 127.0MB in the beginning and 151.0MB in the end (delta: -24.0MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. * TraceAbstraction took 14467.46ms. Allocated memory was 180.4MB in the beginning and 471.9MB in the end (delta: 291.5MB). Free memory was 149.5MB in the beginning and 307.9MB in the end (delta: -158.5MB). Peak memory consumption was 277.7MB. Max. memory is 16.1GB. * Witness Printer took 152.02ms. Allocated memory is still 471.9MB. Free memory was 307.9MB in the beginning and 301.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 541 locations, 74 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.2s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1616 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 677 mSDsluCounter, 314 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 432 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2358 IncrementalHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 432 mSolverCounterUnsat, 265 mSDtfsCounter, 2358 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=765occurred in iteration=17, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 1797 NumberOfCodeBlocks, 1797 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1777 ConstructedInterpolants, 0 QuantifiedInterpolants, 2790 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 41 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 22:17:48,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63271278-8c5b-4085-9342-9f7348805d8c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE