./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/unroll-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/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_b423ba92-b9fa-45bd-9ad4-61664ad433a7/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/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_b423ba92-b9fa-45bd-9ad4-61664ad433a7/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 bb07434636f33664cc09ed992a41516efeea5f96121c916fb8904844e76d9fcd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:10:37,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:10:37,697 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:10:37,718 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:10:37,719 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:10:37,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:10:37,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:10:37,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:10:37,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:10:37,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:10:37,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:10:37,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:10:37,752 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:10:37,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:10:37,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:10:37,754 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:10:37,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:10:37,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:10:37,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:10:37,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:10:37,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:10:37,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:10:37,760 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:10:37,761 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:10:37,761 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:10:37,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:10:37,763 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:10:37,763 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:10:37,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:10:37,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:10:37,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:10:37,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:10:37,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:10:37,767 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:10:37,768 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:10:37,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:10:37,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:10:37,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:10:37,770 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:10:37,771 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:10:37,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:10:37,773 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_b423ba92-b9fa-45bd-9ad4-61664ad433a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb07434636f33664cc09ed992a41516efeea5f96121c916fb8904844e76d9fcd [2023-11-21 22:10:38,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:10:38,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:10:38,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:10:38,116 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:10:38,116 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:10:38,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/unroll-4.wvr.c [2023-11-21 22:10:41,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:10:41,637 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:10:41,638 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/sv-benchmarks/c/weaver/unroll-4.wvr.c [2023-11-21 22:10:41,651 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/bin/uautomizer-verify-bycVGegfSx/data/308832c40/ec9d3cf0a8e74d4797cda9b89aaf413e/FLAG3100d3783 [2023-11-21 22:10:41,670 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/bin/uautomizer-verify-bycVGegfSx/data/308832c40/ec9d3cf0a8e74d4797cda9b89aaf413e [2023-11-21 22:10:41,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:10:41,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:10:41,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:41,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:10:41,693 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:10:41,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:41" (1/1) ... [2023-11-21 22:10:41,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c6f964b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:41, skipping insertion in model container [2023-11-21 22:10:41,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:41" (1/1) ... [2023-11-21 22:10:41,729 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:10:42,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:10:42,025 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:10:42,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:10:42,089 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:10:42,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:42 WrapperNode [2023-11-21 22:10:42,090 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:42,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:10:42,091 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:10:42,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:10:42,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:42" (1/1) ... [2023-11-21 22:10:42,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:42" (1/1) ... [2023-11-21 22:10:42,148 INFO L138 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 319 [2023-11-21 22:10:42,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:10:42,149 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:10:42,149 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:10:42,149 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:10:42,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:42" (1/1) ... [2023-11-21 22:10:42,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:42" (1/1) ... [2023-11-21 22:10:42,178 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:42" (1/1) ... [2023-11-21 22:10:42,178 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:42" (1/1) ... [2023-11-21 22:10:42,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:42" (1/1) ... [2023-11-21 22:10:42,201 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:42" (1/1) ... [2023-11-21 22:10:42,204 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:42" (1/1) ... [2023-11-21 22:10:42,206 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:42" (1/1) ... [2023-11-21 22:10:42,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:10:42,212 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:10:42,213 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:10:42,213 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:10:42,214 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:42" (1/1) ... [2023-11-21 22:10:42,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:10:42,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:42,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:42,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:10:42,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:10:42,290 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:10:42,291 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:10:42,291 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:10:42,291 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:10:42,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:10:42,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:10:42,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:10:42,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:10:42,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:10:42,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:10:42,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:10:42,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:10:42,295 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 22:10:42,434 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:10:42,436 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:10:43,034 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:10:43,055 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:10:43,055 INFO L308 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-21 22:10:43,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:43 BoogieIcfgContainer [2023-11-21 22:10:43,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:10:43,060 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:10:43,060 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:10:43,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:10:43,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:10:41" (1/3) ... [2023-11-21 22:10:43,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ff9775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:10:43, skipping insertion in model container [2023-11-21 22:10:43,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:42" (2/3) ... [2023-11-21 22:10:43,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ff9775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:10:43, skipping insertion in model container [2023-11-21 22:10:43,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:43" (3/3) ... [2023-11-21 22:10:43,067 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.c [2023-11-21 22:10:43,076 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:10:43,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:10:43,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2023-11-21 22:10:43,087 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:10:43,220 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:10:43,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 400 places, 414 transitions, 842 flow [2023-11-21 22:10:43,517 INFO L124 PetriNetUnfolderBase]: 21/412 cut-off events. [2023-11-21 22:10:43,517 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:10:43,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 412 events. 21/412 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 567 event pairs, 0 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 264. Up to 2 conditions per place. [2023-11-21 22:10:43,541 INFO L82 GeneralOperation]: Start removeDead. Operand has 400 places, 414 transitions, 842 flow [2023-11-21 22:10:43,551 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 378 places, 391 transitions, 794 flow [2023-11-21 22:10:43,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:10:43,570 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;@38cab0b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:10:43,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2023-11-21 22:10:43,575 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:10:43,575 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2023-11-21 22:10:43,575 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:10:43,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:43,576 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 22:10:43,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:43,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:43,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1784488969, now seen corresponding path program 1 times [2023-11-21 22:10:43,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:43,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536783983] [2023-11-21 22:10:43,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:43,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:43,819 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 22:10:43,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:43,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536783983] [2023-11-21 22:10:43,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536783983] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:43,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:43,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:43,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942847677] [2023-11-21 22:10:43,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:43,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:43,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:43,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:43,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:43,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 414 [2023-11-21 22:10:43,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 391 transitions, 794 flow. Second operand has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states 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 22:10:43,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:43,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 414 [2023-11-21 22:10:43,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:44,085 INFO L124 PetriNetUnfolderBase]: 15/494 cut-off events. [2023-11-21 22:10:44,085 INFO L125 PetriNetUnfolderBase]: For 15/18 co-relation queries the response was YES. [2023-11-21 22:10:44,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 494 events. 15/494 cut-off events. For 15/18 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1245 event pairs, 3 based on Foata normal form. 13/420 useless extension candidates. Maximal degree in co-relation 372. Up to 19 conditions per place. [2023-11-21 22:10:44,097 INFO L140 encePairwiseOnDemand]: 399/414 looper letters, 10 selfloop transitions, 2 changer transitions 4/378 dead transitions. [2023-11-21 22:10:44,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 378 transitions, 792 flow [2023-11-21 22:10:44,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:44,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:44,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1183 transitions. [2023-11-21 22:10:44,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9524959742351047 [2023-11-21 22:10:44,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1183 transitions. [2023-11-21 22:10:44,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1183 transitions. [2023-11-21 22:10:44,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:44,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1183 transitions. [2023-11-21 22:10:44,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states 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 22:10:44,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:44,153 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:44,155 INFO L175 Difference]: Start difference. First operand has 378 places, 391 transitions, 794 flow. Second operand 3 states and 1183 transitions. [2023-11-21 22:10:44,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 378 transitions, 792 flow [2023-11-21 22:10:44,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 378 transitions, 784 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:10:44,174 INFO L231 Difference]: Finished difference. Result has 375 places, 374 transitions, 756 flow [2023-11-21 22:10:44,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=756, PETRI_PLACES=375, PETRI_TRANSITIONS=374} [2023-11-21 22:10:44,181 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -3 predicate places. [2023-11-21 22:10:44,181 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 374 transitions, 756 flow [2023-11-21 22:10:44,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states 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 22:10:44,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:44,183 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 22:10:44,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:10:44,184 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:44,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:44,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1396637603, now seen corresponding path program 1 times [2023-11-21 22:10:44,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:44,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218070746] [2023-11-21 22:10:44,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:44,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:44,237 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 22:10:44,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:44,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218070746] [2023-11-21 22:10:44,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218070746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:44,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:44,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:44,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470893849] [2023-11-21 22:10:44,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:44,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:44,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:44,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:44,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:44,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 414 [2023-11-21 22:10:44,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 374 transitions, 756 flow. Second operand has 3 states, 3 states have (on average 383.3333333333333) internal successors, (1150), 3 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states 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 22:10:44,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:44,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 414 [2023-11-21 22:10:44,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:44,455 INFO L124 PetriNetUnfolderBase]: 22/613 cut-off events. [2023-11-21 22:10:44,456 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-21 22:10:44,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 613 events. 22/613 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1775 event pairs, 9 based on Foata normal form. 0/508 useless extension candidates. Maximal degree in co-relation 627. Up to 33 conditions per place. [2023-11-21 22:10:44,464 INFO L140 encePairwiseOnDemand]: 411/414 looper letters, 14 selfloop transitions, 2 changer transitions 0/373 dead transitions. [2023-11-21 22:10:44,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 373 transitions, 786 flow [2023-11-21 22:10:44,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:44,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1163 transitions. [2023-11-21 22:10:44,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9363929146537843 [2023-11-21 22:10:44,469 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1163 transitions. [2023-11-21 22:10:44,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1163 transitions. [2023-11-21 22:10:44,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:44,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1163 transitions. [2023-11-21 22:10:44,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states 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 22:10:44,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:44,479 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:44,479 INFO L175 Difference]: Start difference. First operand has 375 places, 374 transitions, 756 flow. Second operand 3 states and 1163 transitions. [2023-11-21 22:10:44,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 373 transitions, 786 flow [2023-11-21 22:10:44,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 373 transitions, 782 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:10:44,489 INFO L231 Difference]: Finished difference. Result has 370 places, 373 transitions, 754 flow [2023-11-21 22:10:44,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=754, PETRI_PLACES=370, PETRI_TRANSITIONS=373} [2023-11-21 22:10:44,491 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -8 predicate places. [2023-11-21 22:10:44,491 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 373 transitions, 754 flow [2023-11-21 22:10:44,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 383.3333333333333) internal successors, (1150), 3 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states 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 22:10:44,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:44,493 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 22:10:44,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:10:44,496 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:44,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:44,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1741875197, now seen corresponding path program 1 times [2023-11-21 22:10:44,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:44,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002240511] [2023-11-21 22:10:44,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:44,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:44,579 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 22:10:44,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:44,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002240511] [2023-11-21 22:10:44,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002240511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:44,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:44,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:44,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729462210] [2023-11-21 22:10:44,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:44,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:44,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:44,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:44,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:44,610 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 414 [2023-11-21 22:10:44,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 373 transitions, 754 flow. Second operand has 3 states, 3 states have (on average 375.0) internal successors, (1125), 3 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states 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 22:10:44,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:44,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 414 [2023-11-21 22:10:44,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:45,081 INFO L124 PetriNetUnfolderBase]: 79/1241 cut-off events. [2023-11-21 22:10:45,081 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-11-21 22:10:45,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1348 conditions, 1241 events. 79/1241 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 5638 event pairs, 26 based on Foata normal form. 0/1017 useless extension candidates. Maximal degree in co-relation 1312. Up to 97 conditions per place. [2023-11-21 22:10:45,100 INFO L140 encePairwiseOnDemand]: 406/414 looper letters, 18 selfloop transitions, 1 changer transitions 0/366 dead transitions. [2023-11-21 22:10:45,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 366 transitions, 778 flow [2023-11-21 22:10:45,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:45,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:45,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1148 transitions. [2023-11-21 22:10:45,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9243156199677939 [2023-11-21 22:10:45,106 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1148 transitions. [2023-11-21 22:10:45,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1148 transitions. [2023-11-21 22:10:45,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:45,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1148 transitions. [2023-11-21 22:10:45,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.6666666666667) internal successors, (1148), 3 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states 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 22:10:45,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:45,117 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:45,117 INFO L175 Difference]: Start difference. First operand has 370 places, 373 transitions, 754 flow. Second operand 3 states and 1148 transitions. [2023-11-21 22:10:45,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 366 transitions, 778 flow [2023-11-21 22:10:45,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 366 transitions, 774 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:10:45,128 INFO L231 Difference]: Finished difference. Result has 363 places, 366 transitions, 738 flow [2023-11-21 22:10:45,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=738, PETRI_PLACES=363, PETRI_TRANSITIONS=366} [2023-11-21 22:10:45,131 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -15 predicate places. [2023-11-21 22:10:45,131 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 366 transitions, 738 flow [2023-11-21 22:10:45,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.0) internal successors, (1125), 3 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states 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 22:10:45,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:45,133 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 22:10:45,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:10:45,134 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:45,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:45,135 INFO L85 PathProgramCache]: Analyzing trace with hash 308302762, now seen corresponding path program 1 times [2023-11-21 22:10:45,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:45,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434725511] [2023-11-21 22:10:45,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:45,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:45,276 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 22:10:45,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:45,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434725511] [2023-11-21 22:10:45,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434725511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:45,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:45,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:45,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079320529] [2023-11-21 22:10:45,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:45,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:45,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:45,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:45,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:45,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 414 [2023-11-21 22:10:45,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 366 transitions, 738 flow. Second operand has 3 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states 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 22:10:45,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:45,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 414 [2023-11-21 22:10:45,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:45,499 INFO L124 PetriNetUnfolderBase]: 22/601 cut-off events. [2023-11-21 22:10:45,499 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-21 22:10:45,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 601 events. 22/601 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1705 event pairs, 9 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 604. Up to 31 conditions per place. [2023-11-21 22:10:45,507 INFO L140 encePairwiseOnDemand]: 411/414 looper letters, 12 selfloop transitions, 2 changer transitions 0/365 dead transitions. [2023-11-21 22:10:45,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 365 transitions, 764 flow [2023-11-21 22:10:45,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:45,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:45,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1167 transitions. [2023-11-21 22:10:45,512 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9396135265700483 [2023-11-21 22:10:45,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1167 transitions. [2023-11-21 22:10:45,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1167 transitions. [2023-11-21 22:10:45,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:45,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1167 transitions. [2023-11-21 22:10:45,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.0) internal successors, (1167), 3 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states 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 22:10:45,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:45,522 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:45,522 INFO L175 Difference]: Start difference. First operand has 363 places, 366 transitions, 738 flow. Second operand 3 states and 1167 transitions. [2023-11-21 22:10:45,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 365 transitions, 764 flow [2023-11-21 22:10:45,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 365 transitions, 763 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:10:45,531 INFO L231 Difference]: Finished difference. Result has 363 places, 365 transitions, 739 flow [2023-11-21 22:10:45,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=735, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=739, PETRI_PLACES=363, PETRI_TRANSITIONS=365} [2023-11-21 22:10:45,534 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -15 predicate places. [2023-11-21 22:10:45,534 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 365 transitions, 739 flow [2023-11-21 22:10:45,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states 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 22:10:45,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:45,536 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 22:10:45,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:10:45,536 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:45,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:45,538 INFO L85 PathProgramCache]: Analyzing trace with hash 407855172, now seen corresponding path program 1 times [2023-11-21 22:10:45,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:45,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30737302] [2023-11-21 22:10:45,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:45,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:46,229 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 22:10:46,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:46,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30737302] [2023-11-21 22:10:46,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30737302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:46,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:46,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:10:46,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90139149] [2023-11-21 22:10:46,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:46,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:10:46,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:46,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:10:46,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:10:46,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 414 [2023-11-21 22:10:46,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 365 transitions, 739 flow. Second operand has 6 states, 6 states have (on average 355.5) internal successors, (2133), 6 states have internal predecessors, (2133), 0 states have call successors, (0), 0 states 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 22:10:46,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:46,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 414 [2023-11-21 22:10:46,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:48,253 INFO L124 PetriNetUnfolderBase]: 1006/6921 cut-off events. [2023-11-21 22:10:48,254 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-21 22:10:48,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8333 conditions, 6921 events. 1006/6921 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 62706 event pairs, 740 based on Foata normal form. 0/5729 useless extension candidates. Maximal degree in co-relation 8298. Up to 1396 conditions per place. [2023-11-21 22:10:48,343 INFO L140 encePairwiseOnDemand]: 408/414 looper letters, 40 selfloop transitions, 5 changer transitions 0/364 dead transitions. [2023-11-21 22:10:48,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 364 transitions, 827 flow [2023-11-21 22:10:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:10:48,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:10:48,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2170 transitions. [2023-11-21 22:10:48,356 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8735909822866345 [2023-11-21 22:10:48,357 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2170 transitions. [2023-11-21 22:10:48,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2170 transitions. [2023-11-21 22:10:48,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:48,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2170 transitions. [2023-11-21 22:10:48,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 361.6666666666667) internal successors, (2170), 6 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states 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 22:10:48,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 22:10:48,376 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 22:10:48,377 INFO L175 Difference]: Start difference. First operand has 363 places, 365 transitions, 739 flow. Second operand 6 states and 2170 transitions. [2023-11-21 22:10:48,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 364 transitions, 827 flow [2023-11-21 22:10:48,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 364 transitions, 823 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:10:48,391 INFO L231 Difference]: Finished difference. Result has 365 places, 364 transitions, 743 flow [2023-11-21 22:10:48,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=743, PETRI_PLACES=365, PETRI_TRANSITIONS=364} [2023-11-21 22:10:48,395 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -13 predicate places. [2023-11-21 22:10:48,395 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 364 transitions, 743 flow [2023-11-21 22:10:48,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 355.5) internal successors, (2133), 6 states have internal predecessors, (2133), 0 states have call successors, (0), 0 states 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 22:10:48,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:48,398 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] [2023-11-21 22:10:48,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:10:48,399 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:48,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:48,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2121122051, now seen corresponding path program 1 times [2023-11-21 22:10:48,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:48,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27068018] [2023-11-21 22:10:48,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:48,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:48,478 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 22:10:48,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:48,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27068018] [2023-11-21 22:10:48,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27068018] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:48,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:48,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:48,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487966579] [2023-11-21 22:10:48,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:48,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:48,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:48,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:48,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:48,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 414 [2023-11-21 22:10:48,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 364 transitions, 743 flow. Second operand has 3 states, 3 states have (on average 387.0) internal successors, (1161), 3 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states 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 22:10:48,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:48,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 414 [2023-11-21 22:10:48,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:48,734 INFO L124 PetriNetUnfolderBase]: 36/1013 cut-off events. [2023-11-21 22:10:48,734 INFO L125 PetriNetUnfolderBase]: For 4/13 co-relation queries the response was YES. [2023-11-21 22:10:48,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 1013 events. 36/1013 cut-off events. For 4/13 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4171 event pairs, 8 based on Foata normal form. 0/845 useless extension candidates. Maximal degree in co-relation 1041. Up to 32 conditions per place. [2023-11-21 22:10:48,745 INFO L140 encePairwiseOnDemand]: 410/414 looper letters, 10 selfloop transitions, 1 changer transitions 0/361 dead transitions. [2023-11-21 22:10:48,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 361 transitions, 759 flow [2023-11-21 22:10:48,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:48,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:48,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1172 transitions. [2023-11-21 22:10:48,749 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9436392914653784 [2023-11-21 22:10:48,749 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1172 transitions. [2023-11-21 22:10:48,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1172 transitions. [2023-11-21 22:10:48,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:48,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1172 transitions. [2023-11-21 22:10:48,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 390.6666666666667) internal successors, (1172), 3 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states 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 22:10:48,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:48,759 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:48,760 INFO L175 Difference]: Start difference. First operand has 365 places, 364 transitions, 743 flow. Second operand 3 states and 1172 transitions. [2023-11-21 22:10:48,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 361 transitions, 759 flow [2023-11-21 22:10:48,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 361 transitions, 749 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:10:48,769 INFO L231 Difference]: Finished difference. Result has 359 places, 361 transitions, 729 flow [2023-11-21 22:10:48,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=729, PETRI_PLACES=359, PETRI_TRANSITIONS=361} [2023-11-21 22:10:48,771 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -19 predicate places. [2023-11-21 22:10:48,771 INFO L495 AbstractCegarLoop]: Abstraction has has 359 places, 361 transitions, 729 flow [2023-11-21 22:10:48,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 387.0) internal successors, (1161), 3 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states 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 22:10:48,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:48,773 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] [2023-11-21 22:10:48,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:10:48,773 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:48,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:48,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1663823057, now seen corresponding path program 1 times [2023-11-21 22:10:48,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:48,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985036132] [2023-11-21 22:10:48,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:48,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:48,862 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 22:10:48,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:48,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985036132] [2023-11-21 22:10:48,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985036132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:48,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:48,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:48,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712169756] [2023-11-21 22:10:48,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:48,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:48,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:48,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:48,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:48,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 414 [2023-11-21 22:10:48,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 361 transitions, 729 flow. Second operand has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states 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 22:10:48,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:48,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 414 [2023-11-21 22:10:48,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:49,018 INFO L124 PetriNetUnfolderBase]: 21/586 cut-off events. [2023-11-21 22:10:49,019 INFO L125 PetriNetUnfolderBase]: For 2/4 co-relation queries the response was YES. [2023-11-21 22:10:49,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 586 events. 21/586 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1289 event pairs, 1 based on Foata normal form. 1/507 useless extension candidates. Maximal degree in co-relation 592. Up to 20 conditions per place. [2023-11-21 22:10:49,027 INFO L140 encePairwiseOnDemand]: 407/414 looper letters, 11 selfloop transitions, 3 changer transitions 0/358 dead transitions. [2023-11-21 22:10:49,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 358 transitions, 752 flow [2023-11-21 22:10:49,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:49,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:49,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1167 transitions. [2023-11-21 22:10:49,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9396135265700483 [2023-11-21 22:10:49,032 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1167 transitions. [2023-11-21 22:10:49,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1167 transitions. [2023-11-21 22:10:49,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:49,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1167 transitions. [2023-11-21 22:10:49,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.0) internal successors, (1167), 3 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states 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 22:10:49,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:49,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:49,045 INFO L175 Difference]: Start difference. First operand has 359 places, 361 transitions, 729 flow. Second operand 3 states and 1167 transitions. [2023-11-21 22:10:49,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 358 transitions, 752 flow [2023-11-21 22:10:49,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 358 transitions, 751 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:10:49,055 INFO L231 Difference]: Finished difference. Result has 356 places, 357 transitions, 726 flow [2023-11-21 22:10:49,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=726, PETRI_PLACES=356, PETRI_TRANSITIONS=357} [2023-11-21 22:10:49,057 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -22 predicate places. [2023-11-21 22:10:49,058 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 357 transitions, 726 flow [2023-11-21 22:10:49,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states 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 22:10:49,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:49,060 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] [2023-11-21 22:10:49,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:10:49,061 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:49,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:49,065 INFO L85 PathProgramCache]: Analyzing trace with hash -2001793368, now seen corresponding path program 1 times [2023-11-21 22:10:49,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:49,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179191212] [2023-11-21 22:10:49,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:49,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:49,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:10:49,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:49,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179191212] [2023-11-21 22:10:49,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179191212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:49,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:49,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:49,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177945388] [2023-11-21 22:10:49,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:49,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:49,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:49,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:49,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:49,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 414 [2023-11-21 22:10:49,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 357 transitions, 726 flow. Second operand has 3 states, 3 states have (on average 354.3333333333333) internal successors, (1063), 3 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states 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 22:10:49,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:49,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 414 [2023-11-21 22:10:49,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:49,370 INFO L124 PetriNetUnfolderBase]: 42/548 cut-off events. [2023-11-21 22:10:49,370 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2023-11-21 22:10:49,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 649 conditions, 548 events. 42/548 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1820 event pairs, 23 based on Foata normal form. 1/496 useless extension candidates. Maximal degree in co-relation 614. Up to 74 conditions per place. [2023-11-21 22:10:49,377 INFO L140 encePairwiseOnDemand]: 392/414 looper letters, 24 selfloop transitions, 8 changer transitions 5/345 dead transitions. [2023-11-21 22:10:49,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 345 transitions, 771 flow [2023-11-21 22:10:49,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:49,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:49,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1106 transitions. [2023-11-21 22:10:49,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8904991948470209 [2023-11-21 22:10:49,382 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1106 transitions. [2023-11-21 22:10:49,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1106 transitions. [2023-11-21 22:10:49,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:49,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1106 transitions. [2023-11-21 22:10:49,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 368.6666666666667) internal successors, (1106), 3 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states 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 22:10:49,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:49,392 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:49,392 INFO L175 Difference]: Start difference. First operand has 356 places, 357 transitions, 726 flow. Second operand 3 states and 1106 transitions. [2023-11-21 22:10:49,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 345 transitions, 771 flow [2023-11-21 22:10:49,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 345 transitions, 765 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:10:49,402 INFO L231 Difference]: Finished difference. Result has 343 places, 339 transitions, 699 flow [2023-11-21 22:10:49,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=699, PETRI_PLACES=343, PETRI_TRANSITIONS=339} [2023-11-21 22:10:49,406 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -35 predicate places. [2023-11-21 22:10:49,406 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 339 transitions, 699 flow [2023-11-21 22:10:49,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 354.3333333333333) internal successors, (1063), 3 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states 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 22:10:49,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:49,407 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] [2023-11-21 22:10:49,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:10:49,408 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:49,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:49,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1249105465, now seen corresponding path program 1 times [2023-11-21 22:10:49,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:49,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412460080] [2023-11-21 22:10:49,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:49,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:50,206 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 22:10:50,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:50,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412460080] [2023-11-21 22:10:50,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412460080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:50,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:50,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:10:50,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170907246] [2023-11-21 22:10:50,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:50,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:10:50,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:50,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:10:50,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:10:50,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 414 [2023-11-21 22:10:50,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 339 transitions, 699 flow. Second operand has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states 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 22:10:50,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:50,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 414 [2023-11-21 22:10:50,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:50,728 INFO L124 PetriNetUnfolderBase]: 8/338 cut-off events. [2023-11-21 22:10:50,728 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:10:50,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 338 events. 8/338 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 358 event pairs, 0 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 330. Up to 9 conditions per place. [2023-11-21 22:10:50,734 INFO L140 encePairwiseOnDemand]: 409/414 looper letters, 10 selfloop transitions, 4 changer transitions 0/338 dead transitions. [2023-11-21 22:10:50,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 338 transitions, 725 flow [2023-11-21 22:10:50,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:10:50,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:10:50,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2307 transitions. [2023-11-21 22:10:50,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.928743961352657 [2023-11-21 22:10:50,743 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2307 transitions. [2023-11-21 22:10:50,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2307 transitions. [2023-11-21 22:10:50,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:50,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2307 transitions. [2023-11-21 22:10:50,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 384.5) internal successors, (2307), 6 states have internal predecessors, (2307), 0 states have call successors, (0), 0 states 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 22:10:50,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 22:10:50,779 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 22:10:50,779 INFO L175 Difference]: Start difference. First operand has 343 places, 339 transitions, 699 flow. Second operand 6 states and 2307 transitions. [2023-11-21 22:10:50,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 338 transitions, 725 flow [2023-11-21 22:10:50,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 338 transitions, 709 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:10:50,789 INFO L231 Difference]: Finished difference. Result has 340 places, 338 transitions, 689 flow [2023-11-21 22:10:50,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=689, PETRI_PLACES=340, PETRI_TRANSITIONS=338} [2023-11-21 22:10:50,791 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -38 predicate places. [2023-11-21 22:10:50,792 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 338 transitions, 689 flow [2023-11-21 22:10:50,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states 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 22:10:50,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:50,793 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 22:10:50,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:10:50,794 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:50,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:50,794 INFO L85 PathProgramCache]: Analyzing trace with hash -238635911, now seen corresponding path program 1 times [2023-11-21 22:10:50,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:50,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8434113] [2023-11-21 22:10:50,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:50,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:50,858 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 22:10:50,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:50,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8434113] [2023-11-21 22:10:50,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8434113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:50,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:50,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:50,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356748754] [2023-11-21 22:10:50,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:50,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:50,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:50,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:50,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:50,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 414 [2023-11-21 22:10:50,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 338 transitions, 689 flow. Second operand has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states 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 22:10:50,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:50,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 414 [2023-11-21 22:10:50,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:51,155 INFO L124 PetriNetUnfolderBase]: 71/1013 cut-off events. [2023-11-21 22:10:51,155 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-21 22:10:51,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1116 conditions, 1013 events. 71/1013 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4201 event pairs, 8 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 1081. Up to 86 conditions per place. [2023-11-21 22:10:51,168 INFO L140 encePairwiseOnDemand]: 407/414 looper letters, 16 selfloop transitions, 2 changer transitions 0/337 dead transitions. [2023-11-21 22:10:51,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 337 transitions, 725 flow [2023-11-21 22:10:51,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:51,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:51,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1163 transitions. [2023-11-21 22:10:51,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9363929146537843 [2023-11-21 22:10:51,174 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1163 transitions. [2023-11-21 22:10:51,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1163 transitions. [2023-11-21 22:10:51,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:51,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1163 transitions. [2023-11-21 22:10:51,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states 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 22:10:51,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:51,186 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:51,186 INFO L175 Difference]: Start difference. First operand has 340 places, 338 transitions, 689 flow. Second operand 3 states and 1163 transitions. [2023-11-21 22:10:51,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 337 transitions, 725 flow [2023-11-21 22:10:51,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 337 transitions, 718 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:10:51,198 INFO L231 Difference]: Finished difference. Result has 334 places, 335 transitions, 686 flow [2023-11-21 22:10:51,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=334, PETRI_TRANSITIONS=335} [2023-11-21 22:10:51,201 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -44 predicate places. [2023-11-21 22:10:51,202 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 335 transitions, 686 flow [2023-11-21 22:10:51,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states 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 22:10:51,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:51,203 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:51,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:10:51,204 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:51,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:51,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1488392479, now seen corresponding path program 1 times [2023-11-21 22:10:51,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:51,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942629449] [2023-11-21 22:10:51,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:51,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:51,400 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 22:10:51,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:51,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942629449] [2023-11-21 22:10:51,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942629449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:51,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:51,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:10:51,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415549722] [2023-11-21 22:10:51,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:51,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:10:51,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:51,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:10:51,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:10:51,457 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 414 [2023-11-21 22:10:51,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 335 transitions, 686 flow. Second operand has 4 states, 4 states have (on average 390.25) internal successors, (1561), 4 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states 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 22:10:51,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:51,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 414 [2023-11-21 22:10:51,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:51,789 INFO L124 PetriNetUnfolderBase]: 44/1187 cut-off events. [2023-11-21 22:10:51,789 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2023-11-21 22:10:51,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 1187 events. 44/1187 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 4656 event pairs, 3 based on Foata normal form. 1/1074 useless extension candidates. Maximal degree in co-relation 1225. Up to 18 conditions per place. [2023-11-21 22:10:51,805 INFO L140 encePairwiseOnDemand]: 408/414 looper letters, 13 selfloop transitions, 6 changer transitions 0/344 dead transitions. [2023-11-21 22:10:51,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 344 transitions, 746 flow [2023-11-21 22:10:51,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:10:51,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:10:51,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1965 transitions. [2023-11-21 22:10:51,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9492753623188406 [2023-11-21 22:10:51,815 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1965 transitions. [2023-11-21 22:10:51,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1965 transitions. [2023-11-21 22:10:51,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:51,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1965 transitions. [2023-11-21 22:10:51,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 393.0) internal successors, (1965), 5 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states 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 22:10:51,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 414.0) internal successors, (2484), 6 states have internal predecessors, (2484), 0 states have call successors, (0), 0 states 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 22:10:51,832 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 414.0) internal successors, (2484), 6 states have internal predecessors, (2484), 0 states have call successors, (0), 0 states 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 22:10:51,832 INFO L175 Difference]: Start difference. First operand has 334 places, 335 transitions, 686 flow. Second operand 5 states and 1965 transitions. [2023-11-21 22:10:51,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 344 transitions, 746 flow [2023-11-21 22:10:51,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 344 transitions, 746 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:10:51,844 INFO L231 Difference]: Finished difference. Result has 341 places, 339 transitions, 724 flow [2023-11-21 22:10:51,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=724, PETRI_PLACES=341, PETRI_TRANSITIONS=339} [2023-11-21 22:10:51,845 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -37 predicate places. [2023-11-21 22:10:51,846 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 339 transitions, 724 flow [2023-11-21 22:10:51,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 390.25) internal successors, (1561), 4 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states 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 22:10:51,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:51,847 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 22:10:51,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:10:51,848 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:51,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:51,848 INFO L85 PathProgramCache]: Analyzing trace with hash 51861280, now seen corresponding path program 1 times [2023-11-21 22:10:51,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:51,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137815845] [2023-11-21 22:10:51,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:51,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:52,493 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 22:10:52,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:52,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137815845] [2023-11-21 22:10:52,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137815845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:52,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:52,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:10:52,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953832837] [2023-11-21 22:10:52,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:52,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:10:52,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:52,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:10:52,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:10:52,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 414 [2023-11-21 22:10:52,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 339 transitions, 724 flow. Second operand has 6 states, 6 states have (on average 383.6666666666667) internal successors, (2302), 6 states have internal predecessors, (2302), 0 states have call successors, (0), 0 states 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 22:10:52,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:52,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 414 [2023-11-21 22:10:52,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:53,041 INFO L124 PetriNetUnfolderBase]: 21/728 cut-off events. [2023-11-21 22:10:53,041 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2023-11-21 22:10:53,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 728 events. 21/728 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1688 event pairs, 1 based on Foata normal form. 0/665 useless extension candidates. Maximal degree in co-relation 744. Up to 11 conditions per place. [2023-11-21 22:10:53,051 INFO L140 encePairwiseOnDemand]: 409/414 looper letters, 10 selfloop transitions, 4 changer transitions 0/338 dead transitions. [2023-11-21 22:10:53,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 338 transitions, 750 flow [2023-11-21 22:10:53,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:10:53,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:10:53,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2307 transitions. [2023-11-21 22:10:53,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.928743961352657 [2023-11-21 22:10:53,059 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2307 transitions. [2023-11-21 22:10:53,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2307 transitions. [2023-11-21 22:10:53,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:53,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2307 transitions. [2023-11-21 22:10:53,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 384.5) internal successors, (2307), 6 states have internal predecessors, (2307), 0 states have call successors, (0), 0 states 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 22:10:53,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 22:10:53,073 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 22:10:53,073 INFO L175 Difference]: Start difference. First operand has 341 places, 339 transitions, 724 flow. Second operand 6 states and 2307 transitions. [2023-11-21 22:10:53,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 338 transitions, 750 flow [2023-11-21 22:10:53,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 338 transitions, 750 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:10:53,081 INFO L231 Difference]: Finished difference. Result has 345 places, 338 transitions, 730 flow [2023-11-21 22:10:53,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=730, PETRI_PLACES=345, PETRI_TRANSITIONS=338} [2023-11-21 22:10:53,083 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -33 predicate places. [2023-11-21 22:10:53,083 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 338 transitions, 730 flow [2023-11-21 22:10:53,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 383.6666666666667) internal successors, (2302), 6 states have internal predecessors, (2302), 0 states have call successors, (0), 0 states 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 22:10:53,084 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:53,084 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] [2023-11-21 22:10:53,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:10:53,085 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:53,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:53,086 INFO L85 PathProgramCache]: Analyzing trace with hash 592207802, now seen corresponding path program 1 times [2023-11-21 22:10:53,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:53,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244161590] [2023-11-21 22:10:53,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:53,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:53,663 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 22:10:53,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:53,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244161590] [2023-11-21 22:10:53,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244161590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:53,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:53,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:10:53,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165238394] [2023-11-21 22:10:53,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:53,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:10:53,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:53,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:10:53,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:10:54,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 414 [2023-11-21 22:10:54,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 338 transitions, 730 flow. Second operand has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states 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 22:10:54,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:54,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 414 [2023-11-21 22:10:54,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:54,270 INFO L124 PetriNetUnfolderBase]: 38/921 cut-off events. [2023-11-21 22:10:54,270 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-21 22:10:54,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 921 events. 38/921 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2956 event pairs, 2 based on Foata normal form. 0/842 useless extension candidates. Maximal degree in co-relation 1005. Up to 17 conditions per place. [2023-11-21 22:10:54,282 INFO L140 encePairwiseOnDemand]: 408/414 looper letters, 15 selfloop transitions, 6 changer transitions 0/341 dead transitions. [2023-11-21 22:10:54,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 341 transitions, 782 flow [2023-11-21 22:10:54,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:10:54,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:10:54,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2313 transitions. [2023-11-21 22:10:54,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9311594202898551 [2023-11-21 22:10:54,290 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2313 transitions. [2023-11-21 22:10:54,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2313 transitions. [2023-11-21 22:10:54,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:54,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2313 transitions. [2023-11-21 22:10:54,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 385.5) internal successors, (2313), 6 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states 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 22:10:54,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 22:10:54,304 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 22:10:54,305 INFO L175 Difference]: Start difference. First operand has 345 places, 338 transitions, 730 flow. Second operand 6 states and 2313 transitions. [2023-11-21 22:10:54,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 341 transitions, 782 flow [2023-11-21 22:10:54,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 341 transitions, 775 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:10:54,314 INFO L231 Difference]: Finished difference. Result has 345 places, 337 transitions, 733 flow [2023-11-21 22:10:54,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=733, PETRI_PLACES=345, PETRI_TRANSITIONS=337} [2023-11-21 22:10:54,315 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -33 predicate places. [2023-11-21 22:10:54,316 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 337 transitions, 733 flow [2023-11-21 22:10:54,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states 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 22:10:54,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:54,317 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] [2023-11-21 22:10:54,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:10:54,317 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:54,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:54,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1768036515, now seen corresponding path program 1 times [2023-11-21 22:10:54,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:54,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833844494] [2023-11-21 22:10:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:54,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:54,418 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 22:10:54,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:54,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833844494] [2023-11-21 22:10:54,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833844494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:54,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:54,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:10:54,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304188438] [2023-11-21 22:10:54,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:54,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:10:54,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:54,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:10:54,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:10:54,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 414 [2023-11-21 22:10:54,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 337 transitions, 733 flow. Second operand has 4 states, 4 states have (on average 387.5) internal successors, (1550), 4 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states 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 22:10:54,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:54,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 414 [2023-11-21 22:10:54,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:54,800 INFO L124 PetriNetUnfolderBase]: 56/1179 cut-off events. [2023-11-21 22:10:54,801 INFO L125 PetriNetUnfolderBase]: For 34/35 co-relation queries the response was YES. [2023-11-21 22:10:54,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 1179 events. 56/1179 cut-off events. For 34/35 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 5376 event pairs, 4 based on Foata normal form. 0/1075 useless extension candidates. Maximal degree in co-relation 1289. Up to 60 conditions per place. [2023-11-21 22:10:54,814 INFO L140 encePairwiseOnDemand]: 408/414 looper letters, 15 selfloop transitions, 6 changer transitions 0/345 dead transitions. [2023-11-21 22:10:54,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 345 transitions, 794 flow [2023-11-21 22:10:54,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:10:54,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:10:54,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1952 transitions. [2023-11-21 22:10:54,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9429951690821256 [2023-11-21 22:10:54,822 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1952 transitions. [2023-11-21 22:10:54,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1952 transitions. [2023-11-21 22:10:54,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:54,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1952 transitions. [2023-11-21 22:10:54,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 390.4) internal successors, (1952), 5 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states 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 22:10:54,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 414.0) internal successors, (2484), 6 states have internal predecessors, (2484), 0 states have call successors, (0), 0 states 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 22:10:54,835 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 414.0) internal successors, (2484), 6 states have internal predecessors, (2484), 0 states have call successors, (0), 0 states 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 22:10:54,835 INFO L175 Difference]: Start difference. First operand has 345 places, 337 transitions, 733 flow. Second operand 5 states and 1952 transitions. [2023-11-21 22:10:54,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 345 transitions, 794 flow [2023-11-21 22:10:54,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 345 transitions, 782 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:10:54,845 INFO L231 Difference]: Finished difference. Result has 347 places, 341 transitions, 759 flow [2023-11-21 22:10:54,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=759, PETRI_PLACES=347, PETRI_TRANSITIONS=341} [2023-11-21 22:10:54,846 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -31 predicate places. [2023-11-21 22:10:54,846 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 341 transitions, 759 flow [2023-11-21 22:10:54,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 387.5) internal successors, (1550), 4 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states 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 22:10:54,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:54,847 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] [2023-11-21 22:10:54,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:10:54,848 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:54,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:54,848 INFO L85 PathProgramCache]: Analyzing trace with hash -468517315, now seen corresponding path program 1 times [2023-11-21 22:10:54,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:54,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171602739] [2023-11-21 22:10:54,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:54,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:10:54,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:54,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171602739] [2023-11-21 22:10:54,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171602739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:54,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:54,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:54,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394593133] [2023-11-21 22:10:54,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:54,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:54,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:54,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:54,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:54,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 387 out of 414 [2023-11-21 22:10:54,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 341 transitions, 759 flow. Second operand has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states 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 22:10:54,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:54,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 387 of 414 [2023-11-21 22:10:54,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:55,242 INFO L124 PetriNetUnfolderBase]: 51/1494 cut-off events. [2023-11-21 22:10:55,243 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2023-11-21 22:10:55,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1686 conditions, 1494 events. 51/1494 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6878 event pairs, 10 based on Foata normal form. 0/1372 useless extension candidates. Maximal degree in co-relation 1641. Up to 34 conditions per place. [2023-11-21 22:10:55,262 INFO L140 encePairwiseOnDemand]: 411/414 looper letters, 9 selfloop transitions, 2 changer transitions 0/341 dead transitions. [2023-11-21 22:10:55,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 341 transitions, 782 flow [2023-11-21 22:10:55,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:55,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:55,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1173 transitions. [2023-11-21 22:10:55,267 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2023-11-21 22:10:55,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1173 transitions. [2023-11-21 22:10:55,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1173 transitions. [2023-11-21 22:10:55,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:55,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1173 transitions. [2023-11-21 22:10:55,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states 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 22:10:55,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:55,276 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:55,276 INFO L175 Difference]: Start difference. First operand has 347 places, 341 transitions, 759 flow. Second operand 3 states and 1173 transitions. [2023-11-21 22:10:55,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 341 transitions, 782 flow [2023-11-21 22:10:55,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 341 transitions, 782 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:10:55,286 INFO L231 Difference]: Finished difference. Result has 348 places, 340 transitions, 761 flow [2023-11-21 22:10:55,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=761, PETRI_PLACES=348, PETRI_TRANSITIONS=340} [2023-11-21 22:10:55,288 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -30 predicate places. [2023-11-21 22:10:55,288 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 340 transitions, 761 flow [2023-11-21 22:10:55,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states 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 22:10:55,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:55,289 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] [2023-11-21 22:10:55,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:10:55,290 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:55,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:55,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1059627699, now seen corresponding path program 1 times [2023-11-21 22:10:55,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:55,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927631435] [2023-11-21 22:10:55,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:55,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:55,793 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 22:10:55,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:55,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927631435] [2023-11-21 22:10:55,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927631435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:55,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:55,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:10:55,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60118840] [2023-11-21 22:10:55,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:55,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:10:55,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:55,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:10:55,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:10:56,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 414 [2023-11-21 22:10:56,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 340 transitions, 761 flow. Second operand has 6 states, 6 states have (on average 362.6666666666667) internal successors, (2176), 6 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states 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 22:10:56,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:56,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 414 [2023-11-21 22:10:56,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:56,666 INFO L124 PetriNetUnfolderBase]: 86/1024 cut-off events. [2023-11-21 22:10:56,667 INFO L125 PetriNetUnfolderBase]: For 79/80 co-relation queries the response was YES. [2023-11-21 22:10:56,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1338 conditions, 1024 events. 86/1024 cut-off events. For 79/80 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5383 event pairs, 10 based on Foata normal form. 0/963 useless extension candidates. Maximal degree in co-relation 1290. Up to 70 conditions per place. [2023-11-21 22:10:56,679 INFO L140 encePairwiseOnDemand]: 390/414 looper letters, 18 selfloop transitions, 21 changer transitions 0/340 dead transitions. [2023-11-21 22:10:56,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 340 transitions, 843 flow [2023-11-21 22:10:56,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:10:56,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:10:56,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2208 transitions. [2023-11-21 22:10:56,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2023-11-21 22:10:56,688 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2208 transitions. [2023-11-21 22:10:56,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2208 transitions. [2023-11-21 22:10:56,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:56,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2208 transitions. [2023-11-21 22:10:56,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 368.0) internal successors, (2208), 6 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states 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 22:10:56,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 22:10:56,703 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 22:10:56,704 INFO L175 Difference]: Start difference. First operand has 348 places, 340 transitions, 761 flow. Second operand 6 states and 2208 transitions. [2023-11-21 22:10:56,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 340 transitions, 843 flow [2023-11-21 22:10:56,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 340 transitions, 839 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:10:56,717 INFO L231 Difference]: Finished difference. Result has 347 places, 336 transitions, 791 flow [2023-11-21 22:10:56,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=749, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=791, PETRI_PLACES=347, PETRI_TRANSITIONS=336} [2023-11-21 22:10:56,718 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -31 predicate places. [2023-11-21 22:10:56,719 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 336 transitions, 791 flow [2023-11-21 22:10:56,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 362.6666666666667) internal successors, (2176), 6 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states 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 22:10:56,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:56,722 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] [2023-11-21 22:10:56,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:10:56,722 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:56,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:56,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1640821366, now seen corresponding path program 1 times [2023-11-21 22:10:56,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:56,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471155049] [2023-11-21 22:10:56,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:56,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:56,784 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 22:10:56,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:56,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471155049] [2023-11-21 22:10:56,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471155049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:56,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:56,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:56,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752553251] [2023-11-21 22:10:56,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:56,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:56,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:56,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:56,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:56,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 414 [2023-11-21 22:10:56,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 336 transitions, 791 flow. Second operand has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 22:10:56,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:56,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 414 [2023-11-21 22:10:56,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:57,147 INFO L124 PetriNetUnfolderBase]: 76/1155 cut-off events. [2023-11-21 22:10:57,147 INFO L125 PetriNetUnfolderBase]: For 83/84 co-relation queries the response was YES. [2023-11-21 22:10:57,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 1155 events. 76/1155 cut-off events. For 83/84 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 5639 event pairs, 42 based on Foata normal form. 0/1087 useless extension candidates. Maximal degree in co-relation 1496. Up to 141 conditions per place. [2023-11-21 22:10:57,163 INFO L140 encePairwiseOnDemand]: 411/414 looper letters, 21 selfloop transitions, 2 changer transitions 0/336 dead transitions. [2023-11-21 22:10:57,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 336 transitions, 838 flow [2023-11-21 22:10:57,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:57,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:57,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1149 transitions. [2023-11-21 22:10:57,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9251207729468599 [2023-11-21 22:10:57,168 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1149 transitions. [2023-11-21 22:10:57,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1149 transitions. [2023-11-21 22:10:57,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:57,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1149 transitions. [2023-11-21 22:10:57,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states 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 22:10:57,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:57,177 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:57,177 INFO L175 Difference]: Start difference. First operand has 347 places, 336 transitions, 791 flow. Second operand 3 states and 1149 transitions. [2023-11-21 22:10:57,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 336 transitions, 838 flow [2023-11-21 22:10:57,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 336 transitions, 796 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:10:57,189 INFO L231 Difference]: Finished difference. Result has 343 places, 335 transitions, 751 flow [2023-11-21 22:10:57,190 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=751, PETRI_PLACES=343, PETRI_TRANSITIONS=335} [2023-11-21 22:10:57,190 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -35 predicate places. [2023-11-21 22:10:57,191 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 335 transitions, 751 flow [2023-11-21 22:10:57,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 22:10:57,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:57,192 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:57,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 22:10:57,192 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:57,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:57,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1553946739, now seen corresponding path program 1 times [2023-11-21 22:10:57,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:57,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744437144] [2023-11-21 22:10:57,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:57,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:57,267 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 22:10:57,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:57,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744437144] [2023-11-21 22:10:57,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744437144] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:57,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:57,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:57,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254129702] [2023-11-21 22:10:57,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:57,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:57,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:57,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:57,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:57,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 414 [2023-11-21 22:10:57,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 335 transitions, 751 flow. Second operand has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states 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 22:10:57,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:57,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 414 [2023-11-21 22:10:57,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:57,609 INFO L124 PetriNetUnfolderBase]: 76/1150 cut-off events. [2023-11-21 22:10:57,609 INFO L125 PetriNetUnfolderBase]: For 73/74 co-relation queries the response was YES. [2023-11-21 22:10:57,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1422 conditions, 1150 events. 76/1150 cut-off events. For 73/74 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5645 event pairs, 42 based on Foata normal form. 0/1087 useless extension candidates. Maximal degree in co-relation 1376. Up to 141 conditions per place. [2023-11-21 22:10:57,622 INFO L140 encePairwiseOnDemand]: 411/414 looper letters, 21 selfloop transitions, 2 changer transitions 0/335 dead transitions. [2023-11-21 22:10:57,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 335 transitions, 798 flow [2023-11-21 22:10:57,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:57,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:57,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1149 transitions. [2023-11-21 22:10:57,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9251207729468599 [2023-11-21 22:10:57,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1149 transitions. [2023-11-21 22:10:57,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1149 transitions. [2023-11-21 22:10:57,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:57,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1149 transitions. [2023-11-21 22:10:57,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states 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 22:10:57,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:57,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:57,634 INFO L175 Difference]: Start difference. First operand has 343 places, 335 transitions, 751 flow. Second operand 3 states and 1149 transitions. [2023-11-21 22:10:57,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 335 transitions, 798 flow [2023-11-21 22:10:57,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 335 transitions, 794 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:10:57,681 INFO L231 Difference]: Finished difference. Result has 342 places, 334 transitions, 749 flow [2023-11-21 22:10:57,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=745, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=749, PETRI_PLACES=342, PETRI_TRANSITIONS=334} [2023-11-21 22:10:57,683 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -36 predicate places. [2023-11-21 22:10:57,684 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 334 transitions, 749 flow [2023-11-21 22:10:57,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states 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 22:10:57,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:57,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:57,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 22:10:57,685 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:57,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:57,686 INFO L85 PathProgramCache]: Analyzing trace with hash 932234948, now seen corresponding path program 1 times [2023-11-21 22:10:57,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:57,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015796032] [2023-11-21 22:10:57,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:57,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:57,783 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 22:10:57,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:57,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015796032] [2023-11-21 22:10:57,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015796032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:57,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:57,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:57,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121197196] [2023-11-21 22:10:57,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:57,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:57,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:57,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:57,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:57,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 414 [2023-11-21 22:10:57,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 334 transitions, 749 flow. Second operand has 3 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states 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 22:10:57,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:57,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 414 [2023-11-21 22:10:57,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:58,278 INFO L124 PetriNetUnfolderBase]: 76/1145 cut-off events. [2023-11-21 22:10:58,279 INFO L125 PetriNetUnfolderBase]: For 73/74 co-relation queries the response was YES. [2023-11-21 22:10:58,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1417 conditions, 1145 events. 76/1145 cut-off events. For 73/74 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5655 event pairs, 42 based on Foata normal form. 0/1087 useless extension candidates. Maximal degree in co-relation 1371. Up to 141 conditions per place. [2023-11-21 22:10:58,293 INFO L140 encePairwiseOnDemand]: 411/414 looper letters, 21 selfloop transitions, 2 changer transitions 0/334 dead transitions. [2023-11-21 22:10:58,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 334 transitions, 796 flow [2023-11-21 22:10:58,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:58,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:58,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1149 transitions. [2023-11-21 22:10:58,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9251207729468599 [2023-11-21 22:10:58,299 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1149 transitions. [2023-11-21 22:10:58,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1149 transitions. [2023-11-21 22:10:58,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:58,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1149 transitions. [2023-11-21 22:10:58,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states 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 22:10:58,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:58,308 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:58,309 INFO L175 Difference]: Start difference. First operand has 342 places, 334 transitions, 749 flow. Second operand 3 states and 1149 transitions. [2023-11-21 22:10:58,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 334 transitions, 796 flow [2023-11-21 22:10:58,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 334 transitions, 792 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:10:58,319 INFO L231 Difference]: Finished difference. Result has 341 places, 333 transitions, 747 flow [2023-11-21 22:10:58,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=747, PETRI_PLACES=341, PETRI_TRANSITIONS=333} [2023-11-21 22:10:58,320 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -37 predicate places. [2023-11-21 22:10:58,320 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 333 transitions, 747 flow [2023-11-21 22:10:58,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states 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 22:10:58,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:10:58,322 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:58,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-21 22:10:58,322 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-11-21 22:10:58,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:58,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1520379877, now seen corresponding path program 1 times [2023-11-21 22:10:58,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:58,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288836348] [2023-11-21 22:10:58,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:58,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:58,417 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 22:10:58,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:58,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288836348] [2023-11-21 22:10:58,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288836348] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:58,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:58,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:10:58,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973250348] [2023-11-21 22:10:58,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:58,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:10:58,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:58,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:58,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:58,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 414 [2023-11-21 22:10:58,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 333 transitions, 747 flow. Second operand has 3 states, 3 states have (on average 380.6666666666667) internal successors, (1142), 3 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states 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 22:10:58,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:10:58,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 414 [2023-11-21 22:10:58,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:10:58,829 INFO L124 PetriNetUnfolderBase]: 76/1140 cut-off events. [2023-11-21 22:10:58,829 INFO L125 PetriNetUnfolderBase]: For 73/74 co-relation queries the response was YES. [2023-11-21 22:10:58,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1412 conditions, 1140 events. 76/1140 cut-off events. For 73/74 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5593 event pairs, 42 based on Foata normal form. 0/1087 useless extension candidates. Maximal degree in co-relation 1366. Up to 141 conditions per place. [2023-11-21 22:10:58,842 INFO L140 encePairwiseOnDemand]: 411/414 looper letters, 0 selfloop transitions, 0 changer transitions 333/333 dead transitions. [2023-11-21 22:10:58,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 333 transitions, 794 flow [2023-11-21 22:10:58,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:58,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:10:58,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1149 transitions. [2023-11-21 22:10:58,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9251207729468599 [2023-11-21 22:10:58,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1149 transitions. [2023-11-21 22:10:58,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1149 transitions. [2023-11-21 22:10:58,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:58,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1149 transitions. [2023-11-21 22:10:58,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states 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 22:10:58,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:58,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 22:10:58,863 INFO L175 Difference]: Start difference. First operand has 341 places, 333 transitions, 747 flow. Second operand 3 states and 1149 transitions. [2023-11-21 22:10:58,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 333 transitions, 794 flow [2023-11-21 22:10:58,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 333 transitions, 790 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:10:58,871 INFO L231 Difference]: Finished difference. Result has 340 places, 0 transitions, 0 flow [2023-11-21 22:10:58,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=340, PETRI_TRANSITIONS=0} [2023-11-21 22:10:58,872 INFO L281 CegarLoopForPetriNet]: 378 programPoint places, -38 predicate places. [2023-11-21 22:10:58,873 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 0 transitions, 0 flow [2023-11-21 22:10:58,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 380.6666666666667) internal successors, (1142), 3 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states 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 22:10:58,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (86 of 87 remaining) [2023-11-21 22:10:58,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (85 of 87 remaining) [2023-11-21 22:10:58,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (84 of 87 remaining) [2023-11-21 22:10:58,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (83 of 87 remaining) [2023-11-21 22:10:58,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (82 of 87 remaining) [2023-11-21 22:10:58,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (81 of 87 remaining) [2023-11-21 22:10:58,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (80 of 87 remaining) [2023-11-21 22:10:58,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (79 of 87 remaining) [2023-11-21 22:10:58,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (78 of 87 remaining) [2023-11-21 22:10:58,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (77 of 87 remaining) [2023-11-21 22:10:58,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (76 of 87 remaining) [2023-11-21 22:10:58,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (75 of 87 remaining) [2023-11-21 22:10:58,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (74 of 87 remaining) [2023-11-21 22:10:58,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (73 of 87 remaining) [2023-11-21 22:10:58,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (72 of 87 remaining) [2023-11-21 22:10:58,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (71 of 87 remaining) [2023-11-21 22:10:58,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (70 of 87 remaining) [2023-11-21 22:10:58,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (69 of 87 remaining) [2023-11-21 22:10:58,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (68 of 87 remaining) [2023-11-21 22:10:58,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (67 of 87 remaining) [2023-11-21 22:10:58,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (66 of 87 remaining) [2023-11-21 22:10:58,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (65 of 87 remaining) [2023-11-21 22:10:58,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (64 of 87 remaining) [2023-11-21 22:10:58,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (63 of 87 remaining) [2023-11-21 22:10:58,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (62 of 87 remaining) [2023-11-21 22:10:58,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (61 of 87 remaining) [2023-11-21 22:10:58,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (60 of 87 remaining) [2023-11-21 22:10:58,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (59 of 87 remaining) [2023-11-21 22:10:58,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (58 of 87 remaining) [2023-11-21 22:10:58,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (57 of 87 remaining) [2023-11-21 22:10:58,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (56 of 87 remaining) [2023-11-21 22:10:58,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (55 of 87 remaining) [2023-11-21 22:10:58,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (54 of 87 remaining) [2023-11-21 22:10:58,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (53 of 87 remaining) [2023-11-21 22:10:58,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (52 of 87 remaining) [2023-11-21 22:10:58,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (51 of 87 remaining) [2023-11-21 22:10:58,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (50 of 87 remaining) [2023-11-21 22:10:58,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 87 remaining) [2023-11-21 22:10:58,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 87 remaining) [2023-11-21 22:10:58,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 87 remaining) [2023-11-21 22:10:58,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (46 of 87 remaining) [2023-11-21 22:10:58,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 87 remaining) [2023-11-21 22:10:58,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (44 of 87 remaining) [2023-11-21 22:10:58,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (43 of 87 remaining) [2023-11-21 22:10:58,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (42 of 87 remaining) [2023-11-21 22:10:58,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (41 of 87 remaining) [2023-11-21 22:10:58,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (40 of 87 remaining) [2023-11-21 22:10:58,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (39 of 87 remaining) [2023-11-21 22:10:58,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 87 remaining) [2023-11-21 22:10:58,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 87 remaining) [2023-11-21 22:10:58,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (36 of 87 remaining) [2023-11-21 22:10:58,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (35 of 87 remaining) [2023-11-21 22:10:58,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (34 of 87 remaining) [2023-11-21 22:10:58,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (33 of 87 remaining) [2023-11-21 22:10:58,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (32 of 87 remaining) [2023-11-21 22:10:58,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (31 of 87 remaining) [2023-11-21 22:10:58,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (30 of 87 remaining) [2023-11-21 22:10:58,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (29 of 87 remaining) [2023-11-21 22:10:58,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (28 of 87 remaining) [2023-11-21 22:10:58,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (27 of 87 remaining) [2023-11-21 22:10:58,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (26 of 87 remaining) [2023-11-21 22:10:58,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (25 of 87 remaining) [2023-11-21 22:10:58,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (24 of 87 remaining) [2023-11-21 22:10:58,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (23 of 87 remaining) [2023-11-21 22:10:58,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (22 of 87 remaining) [2023-11-21 22:10:58,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (21 of 87 remaining) [2023-11-21 22:10:58,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (20 of 87 remaining) [2023-11-21 22:10:58,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (19 of 87 remaining) [2023-11-21 22:10:58,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (18 of 87 remaining) [2023-11-21 22:10:58,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (17 of 87 remaining) [2023-11-21 22:10:58,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (16 of 87 remaining) [2023-11-21 22:10:58,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (15 of 87 remaining) [2023-11-21 22:10:58,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (14 of 87 remaining) [2023-11-21 22:10:58,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (13 of 87 remaining) [2023-11-21 22:10:58,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (12 of 87 remaining) [2023-11-21 22:10:58,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (11 of 87 remaining) [2023-11-21 22:10:58,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (10 of 87 remaining) [2023-11-21 22:10:58,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (9 of 87 remaining) [2023-11-21 22:10:58,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (8 of 87 remaining) [2023-11-21 22:10:58,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (7 of 87 remaining) [2023-11-21 22:10:58,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (6 of 87 remaining) [2023-11-21 22:10:58,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (5 of 87 remaining) [2023-11-21 22:10:58,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (4 of 87 remaining) [2023-11-21 22:10:58,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (3 of 87 remaining) [2023-11-21 22:10:58,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (2 of 87 remaining) [2023-11-21 22:10:58,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (1 of 87 remaining) [2023-11-21 22:10:58,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (0 of 87 remaining) [2023-11-21 22:10:58,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 22:10:58,898 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 22:10:58,907 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:10:58,907 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:10:58,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:10:58 BasicIcfg [2023-11-21 22:10:58,917 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:10:58,917 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:10:58,918 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:10:58,918 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:10:58,919 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:43" (3/4) ... [2023-11-21 22:10:58,921 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:10:58,926 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-21 22:10:58,926 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-21 22:10:58,935 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-21 22:10:58,936 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 22:10:58,937 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:10:58,937 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:10:59,089 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:10:59,089 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:10:59,089 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:10:59,090 INFO L158 Benchmark]: Toolchain (without parser) took 17410.08ms. Allocated memory was 134.2MB in the beginning and 585.1MB in the end (delta: 450.9MB). Free memory was 90.1MB in the beginning and 239.9MB in the end (delta: -149.8MB). Peak memory consumption was 304.3MB. Max. memory is 16.1GB. [2023-11-21 22:10:59,091 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:10:59,091 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.10ms. Allocated memory is still 134.2MB. Free memory was 89.8MB in the beginning and 77.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:10:59,092 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.38ms. Allocated memory is still 134.2MB. Free memory was 77.1MB in the beginning and 73.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:10:59,092 INFO L158 Benchmark]: Boogie Preprocessor took 62.37ms. Allocated memory is still 134.2MB. Free memory was 73.9MB in the beginning and 71.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:10:59,093 INFO L158 Benchmark]: RCFGBuilder took 844.92ms. Allocated memory was 134.2MB in the beginning and 192.9MB in the end (delta: 58.7MB). Free memory was 71.3MB in the beginning and 140.9MB in the end (delta: -69.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 22:10:59,093 INFO L158 Benchmark]: TraceAbstraction took 15857.01ms. Allocated memory was 192.9MB in the beginning and 585.1MB in the end (delta: 392.2MB). Free memory was 140.4MB in the beginning and 246.2MB in the end (delta: -105.7MB). Peak memory consumption was 287.5MB. Max. memory is 16.1GB. [2023-11-21 22:10:59,094 INFO L158 Benchmark]: Witness Printer took 172.15ms. Allocated memory is still 585.1MB. Free memory was 246.2MB in the beginning and 239.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 22:10:59,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.10ms. Allocated memory is still 134.2MB. Free memory was 89.8MB in the beginning and 77.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.38ms. Allocated memory is still 134.2MB. Free memory was 77.1MB in the beginning and 73.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.37ms. Allocated memory is still 134.2MB. Free memory was 73.9MB in the beginning and 71.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 844.92ms. Allocated memory was 134.2MB in the beginning and 192.9MB in the end (delta: 58.7MB). Free memory was 71.3MB in the beginning and 140.9MB in the end (delta: -69.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 15857.01ms. Allocated memory was 192.9MB in the beginning and 585.1MB in the end (delta: 392.2MB). Free memory was 140.4MB in the beginning and 246.2MB in the end (delta: -105.7MB). Peak memory consumption was 287.5MB. Max. memory is 16.1GB. * Witness Printer took 172.15ms. Allocated memory is still 585.1MB. Free memory was 246.2MB in the beginning and 239.9MB 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: 60]: 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: 60]: 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: 61]: 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: 61]: 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: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: 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: 67]: 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: 67]: 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: 69]: 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: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: 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: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: 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, 629 locations, 87 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: 15.6s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1834 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 783 mSDsluCounter, 315 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 526 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2518 IncrementalHoareTripleChecker+Invalid, 3044 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 526 mSolverCounterUnsat, 255 mSDtfsCounter, 2518 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=794occurred in iteration=0, InterpolantAutomatonStates: 79, 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, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 2056 NumberOfCodeBlocks, 2056 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2036 ConstructedInterpolants, 0 QuantifiedInterpolants, 2915 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 48 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 22:10:59,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b423ba92-b9fa-45bd-9ad4-61664ad433a7/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