./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/08_rand_cas-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/08_rand_cas-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:47:42,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:47:42,143 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:47:42,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:47:42,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:47:42,175 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:47:42,176 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:47:42,176 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:47:42,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:47:42,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:47:42,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:47:42,179 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:47:42,180 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:47:42,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:47:42,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:47:42,182 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:47:42,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:47:42,183 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:47:42,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:47:42,184 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:47:42,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:47:42,185 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:47:42,186 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:47:42,186 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:47:42,187 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:47:42,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:47:42,188 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:47:42,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:47:42,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:47:42,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:47:42,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:42,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:47:42,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:47:42,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:47:42,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:47:42,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:47:42,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:47:42,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:47:42,193 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:47:42,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:47:42,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:47:42,194 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_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 [2023-11-26 10:47:42,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:47:42,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:47:42,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:47:42,565 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:47:42,567 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:47:42,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2023-11-26 10:47:45,821 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:47:46,245 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:47:46,245 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2023-11-26 10:47:46,264 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme/data/6e8a1d3e6/b73db84f5c064aadb67212ce7ded23e7/FLAGe16171657 [2023-11-26 10:47:46,282 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme/data/6e8a1d3e6/b73db84f5c064aadb67212ce7ded23e7 [2023-11-26 10:47:46,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:47:46,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:47:46,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:46,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:47:46,295 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:47:46,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:46" (1/1) ... [2023-11-26 10:47:46,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e0665f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:46, skipping insertion in model container [2023-11-26 10:47:46,298 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:46" (1/1) ... [2023-11-26 10:47:46,379 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:47:46,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:46,965 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:47:47,045 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:47,112 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:47:47,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:47 WrapperNode [2023-11-26 10:47:47,112 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:47,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:47,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:47:47,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:47:47,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:47" (1/1) ... [2023-11-26 10:47:47,156 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:47" (1/1) ... [2023-11-26 10:47:47,223 INFO L138 Inliner]: procedures = 176, calls = 37, calls flagged for inlining = 16, calls inlined = 17, statements flattened = 222 [2023-11-26 10:47:47,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:47,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:47:47,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:47:47,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:47:47,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:47" (1/1) ... [2023-11-26 10:47:47,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:47" (1/1) ... [2023-11-26 10:47:47,258 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:47" (1/1) ... [2023-11-26 10:47:47,258 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:47" (1/1) ... [2023-11-26 10:47:47,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:47" (1/1) ... [2023-11-26 10:47:47,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:47" (1/1) ... [2023-11-26 10:47:47,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:47" (1/1) ... [2023-11-26 10:47:47,314 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:47" (1/1) ... [2023-11-26 10:47:47,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:47:47,319 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:47:47,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:47:47,320 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:47:47,321 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:47" (1/1) ... [2023-11-26 10:47:47,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:47,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:47:47,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:47:47,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13ae21e3-f618-4bae-bbc9-62e5d09db017/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:47:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:47:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-26 10:47:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-26 10:47:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:47:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:47:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:47:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:47:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:47:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:47:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:47:47,437 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:47:47,661 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:47:47,664 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:47:48,194 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:47:48,500 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:47:48,504 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-26 10:47:48,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:48 BoogieIcfgContainer [2023-11-26 10:47:48,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:47:48,512 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:47:48,513 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:47:48,517 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:47:48,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:47:46" (1/3) ... [2023-11-26 10:47:48,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21be7cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:48, skipping insertion in model container [2023-11-26 10:47:48,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:47" (2/3) ... [2023-11-26 10:47:48,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21be7cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:48, skipping insertion in model container [2023-11-26 10:47:48,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:48" (3/3) ... [2023-11-26 10:47:48,522 INFO L112 eAbstractionObserver]: Analyzing ICFG 08_rand_cas-race.i [2023-11-26 10:47:48,532 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:47:48,545 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:47:48,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-26 10:47:48,547 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:47:48,694 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:47:48,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 180 transitions, 364 flow [2023-11-26 10:47:48,925 INFO L124 PetriNetUnfolderBase]: 17/191 cut-off events. [2023-11-26 10:47:48,928 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:47:48,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 191 events. 17/191 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. 0/156 useless extension candidates. Maximal degree in co-relation 164. Up to 4 conditions per place. [2023-11-26 10:47:48,941 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 180 transitions, 364 flow [2023-11-26 10:47:48,960 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 167 places, 180 transitions, 364 flow [2023-11-26 10:47:48,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:47:48,978 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;@62723242, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:47:48,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2023-11-26 10:47:48,996 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:47:48,997 INFO L124 PetriNetUnfolderBase]: 1/28 cut-off events. [2023-11-26 10:47:48,997 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:47:48,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:48,998 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] [2023-11-26 10:47:48,999 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-26 10:47:49,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:49,007 INFO L85 PathProgramCache]: Analyzing trace with hash -998052228, now seen corresponding path program 1 times [2023-11-26 10:47:49,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:49,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870169123] [2023-11-26 10:47:49,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:49,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:49,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:49,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:49,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870169123] [2023-11-26 10:47:49,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870169123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:49,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:49,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:47:49,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966555769] [2023-11-26 10:47:49,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:49,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:47:49,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:49,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:47:49,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:47:49,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 180 [2023-11-26 10:47:49,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 180 transitions, 364 flow. Second operand has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:49,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:49,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 180 [2023-11-26 10:47:49,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:49,471 INFO L124 PetriNetUnfolderBase]: 4/146 cut-off events. [2023-11-26 10:47:49,472 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 10:47:49,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 146 events. 4/146 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 128 event pairs, 0 based on Foata normal form. 14/147 useless extension candidates. Maximal degree in co-relation 130. Up to 6 conditions per place. [2023-11-26 10:47:49,474 INFO L140 encePairwiseOnDemand]: 157/180 looper letters, 5 selfloop transitions, 0 changer transitions 0/142 dead transitions. [2023-11-26 10:47:49,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 142 transitions, 298 flow [2023-11-26 10:47:49,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:47:49,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 10:47:49,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 326 transitions. [2023-11-26 10:47:49,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9055555555555556 [2023-11-26 10:47:49,492 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 326 transitions. [2023-11-26 10:47:49,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 326 transitions. [2023-11-26 10:47:49,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:49,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 326 transitions. [2023-11-26 10:47:49,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 163.0) internal successors, (326), 2 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:49,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:49,507 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:49,509 INFO L175 Difference]: Start difference. First operand has 167 places, 180 transitions, 364 flow. Second operand 2 states and 326 transitions. [2023-11-26 10:47:49,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 142 transitions, 298 flow [2023-11-26 10:47:49,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 142 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:47:49,518 INFO L231 Difference]: Finished difference. Result has 142 places, 142 transitions, 288 flow [2023-11-26 10:47:49,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=288, PETRI_PLACES=142, PETRI_TRANSITIONS=142} [2023-11-26 10:47:49,523 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -25 predicate places. [2023-11-26 10:47:49,524 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 142 transitions, 288 flow [2023-11-26 10:47:49,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:49,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:49,524 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:49,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:47:49,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-26 10:47:49,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:49,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1350461153, now seen corresponding path program 1 times [2023-11-26 10:47:49,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:49,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081035119] [2023-11-26 10:47:49,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:49,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:49,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:49,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081035119] [2023-11-26 10:47:49,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081035119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:49,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:49,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:49,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367707360] [2023-11-26 10:47:49,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:49,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:49,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:49,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:49,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:49,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 180 [2023-11-26 10:47:49,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 142 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:49,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:49,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 180 [2023-11-26 10:47:49,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:49,759 INFO L124 PetriNetUnfolderBase]: 4/145 cut-off events. [2023-11-26 10:47:49,759 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 10:47:49,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 145 events. 4/145 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 126 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 155. Up to 5 conditions per place. [2023-11-26 10:47:49,761 INFO L140 encePairwiseOnDemand]: 177/180 looper letters, 6 selfloop transitions, 2 changer transitions 0/141 dead transitions. [2023-11-26 10:47:49,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 302 flow [2023-11-26 10:47:49,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:49,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:49,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2023-11-26 10:47:49,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2023-11-26 10:47:49,767 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 444 transitions. [2023-11-26 10:47:49,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 444 transitions. [2023-11-26 10:47:49,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:49,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 444 transitions. [2023-11-26 10:47:49,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:49,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:49,773 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:49,773 INFO L175 Difference]: Start difference. First operand has 142 places, 142 transitions, 288 flow. Second operand 3 states and 444 transitions. [2023-11-26 10:47:49,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 302 flow [2023-11-26 10:47:49,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 141 transitions, 302 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:47:49,778 INFO L231 Difference]: Finished difference. Result has 143 places, 141 transitions, 290 flow [2023-11-26 10:47:49,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=143, PETRI_TRANSITIONS=141} [2023-11-26 10:47:49,780 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -24 predicate places. [2023-11-26 10:47:49,780 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 141 transitions, 290 flow [2023-11-26 10:47:49,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:49,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:49,781 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:49,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:47:49,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-26 10:47:49,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:49,782 INFO L85 PathProgramCache]: Analyzing trace with hash -302056723, now seen corresponding path program 1 times [2023-11-26 10:47:49,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:49,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418467471] [2023-11-26 10:47:49,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:49,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:47:49,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:47:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:47:49,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:47:49,843 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:47:49,844 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2023-11-26 10:47:49,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2023-11-26 10:47:49,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2023-11-26 10:47:49,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2023-11-26 10:47:49,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2023-11-26 10:47:49,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2023-11-26 10:47:49,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2023-11-26 10:47:49,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2023-11-26 10:47:49,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2023-11-26 10:47:49,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2023-11-26 10:47:49,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2023-11-26 10:47:49,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2023-11-26 10:47:49,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2023-11-26 10:47:49,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2023-11-26 10:47:49,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2023-11-26 10:47:49,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2023-11-26 10:47:49,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2023-11-26 10:47:49,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2023-11-26 10:47:49,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2023-11-26 10:47:49,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2023-11-26 10:47:49,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2023-11-26 10:47:49,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2023-11-26 10:47:49,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2023-11-26 10:47:49,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2023-11-26 10:47:49,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2023-11-26 10:47:49,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2023-11-26 10:47:49,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2023-11-26 10:47:49,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2023-11-26 10:47:49,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2023-11-26 10:47:49,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2023-11-26 10:47:49,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2023-11-26 10:47:49,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2023-11-26 10:47:49,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2023-11-26 10:47:49,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:47:49,855 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 10:47:49,858 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 10:47:49,858 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-26 10:47:50,006 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:47:50,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 306 places, 332 transitions, 674 flow [2023-11-26 10:47:50,161 INFO L124 PetriNetUnfolderBase]: 33/356 cut-off events. [2023-11-26 10:47:50,161 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 10:47:50,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 356 events. 33/356 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1244 event pairs, 0 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 315. Up to 6 conditions per place. [2023-11-26 10:47:50,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 306 places, 332 transitions, 674 flow [2023-11-26 10:47:50,189 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 332 transitions, 674 flow [2023-11-26 10:47:50,196 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:47:50,203 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;@62723242, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:47:50,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-11-26 10:47:50,209 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:47:50,210 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2023-11-26 10:47:50,210 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:47:50,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:50,210 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] [2023-11-26 10:47:50,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:47:50,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:50,211 INFO L85 PathProgramCache]: Analyzing trace with hash -645899649, now seen corresponding path program 1 times [2023-11-26 10:47:50,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:50,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187318550] [2023-11-26 10:47:50,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:50,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:50,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:50,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:50,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187318550] [2023-11-26 10:47:50,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187318550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:50,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:50,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:47:50,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067594876] [2023-11-26 10:47:50,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:50,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:47:50,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:50,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:47:50,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:47:50,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 332 [2023-11-26 10:47:50,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 332 transitions, 674 flow. Second operand has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:50,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:50,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 332 [2023-11-26 10:47:50,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:50,700 INFO L124 PetriNetUnfolderBase]: 48/888 cut-off events. [2023-11-26 10:47:50,700 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-26 10:47:50,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 888 events. 48/888 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4812 event pairs, 20 based on Foata normal form. 110/900 useless extension candidates. Maximal degree in co-relation 778. Up to 51 conditions per place. [2023-11-26 10:47:50,710 INFO L140 encePairwiseOnDemand]: 288/332 looper letters, 10 selfloop transitions, 0 changer transitions 0/263 dead transitions. [2023-11-26 10:47:50,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 263 transitions, 556 flow [2023-11-26 10:47:50,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:47:50,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 10:47:50,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 598 transitions. [2023-11-26 10:47:50,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9006024096385542 [2023-11-26 10:47:50,713 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 598 transitions. [2023-11-26 10:47:50,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 598 transitions. [2023-11-26 10:47:50,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:50,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 598 transitions. [2023-11-26 10:47:50,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 299.0) internal successors, (598), 2 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:50,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:50,722 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:50,722 INFO L175 Difference]: Start difference. First operand has 306 places, 332 transitions, 674 flow. Second operand 2 states and 598 transitions. [2023-11-26 10:47:50,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 263 transitions, 556 flow [2023-11-26 10:47:50,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 263 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:47:50,735 INFO L231 Difference]: Finished difference. Result has 261 places, 263 transitions, 536 flow [2023-11-26 10:47:50,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=536, PETRI_PLACES=261, PETRI_TRANSITIONS=263} [2023-11-26 10:47:50,739 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -45 predicate places. [2023-11-26 10:47:50,739 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 263 transitions, 536 flow [2023-11-26 10:47:50,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:50,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:50,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:50,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:47:50,741 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:47:50,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:50,742 INFO L85 PathProgramCache]: Analyzing trace with hash 2060733634, now seen corresponding path program 1 times [2023-11-26 10:47:50,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:50,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131252621] [2023-11-26 10:47:50,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:50,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:50,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:50,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:50,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131252621] [2023-11-26 10:47:50,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131252621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:50,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:50,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:50,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963299315] [2023-11-26 10:47:50,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:50,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:50,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:50,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:50,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:50,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 332 [2023-11-26 10:47:50,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 263 transitions, 536 flow. Second operand has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:50,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:50,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 332 [2023-11-26 10:47:50,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:51,425 INFO L124 PetriNetUnfolderBase]: 119/1660 cut-off events. [2023-11-26 10:47:51,426 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-11-26 10:47:51,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1849 conditions, 1660 events. 119/1660 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 11871 event pairs, 27 based on Foata normal form. 0/1480 useless extension candidates. Maximal degree in co-relation 1844. Up to 92 conditions per place. [2023-11-26 10:47:51,443 INFO L140 encePairwiseOnDemand]: 324/332 looper letters, 27 selfloop transitions, 6 changer transitions 0/278 dead transitions. [2023-11-26 10:47:51,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 278 transitions, 637 flow [2023-11-26 10:47:51,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:51,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:51,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 827 transitions. [2023-11-26 10:47:51,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8303212851405622 [2023-11-26 10:47:51,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 827 transitions. [2023-11-26 10:47:51,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 827 transitions. [2023-11-26 10:47:51,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:51,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 827 transitions. [2023-11-26 10:47:51,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.6666666666667) internal successors, (827), 3 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:51,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:51,459 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:51,459 INFO L175 Difference]: Start difference. First operand has 261 places, 263 transitions, 536 flow. Second operand 3 states and 827 transitions. [2023-11-26 10:47:51,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 278 transitions, 637 flow [2023-11-26 10:47:51,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 278 transitions, 637 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:47:51,467 INFO L231 Difference]: Finished difference. Result has 265 places, 269 transitions, 588 flow [2023-11-26 10:47:51,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=265, PETRI_TRANSITIONS=269} [2023-11-26 10:47:51,470 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -41 predicate places. [2023-11-26 10:47:51,470 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 269 transitions, 588 flow [2023-11-26 10:47:51,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:51,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:51,471 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:51,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:47:51,473 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:47:51,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:51,474 INFO L85 PathProgramCache]: Analyzing trace with hash 408026844, now seen corresponding path program 1 times [2023-11-26 10:47:51,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:51,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152862781] [2023-11-26 10:47:51,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:51,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:47:51,517 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:47:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:47:51,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:47:51,557 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:47:51,557 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2023-11-26 10:47:51,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2023-11-26 10:47:51,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2023-11-26 10:47:51,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2023-11-26 10:47:51,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2023-11-26 10:47:51,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2023-11-26 10:47:51,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2023-11-26 10:47:51,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2023-11-26 10:47:51,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2023-11-26 10:47:51,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2023-11-26 10:47:51,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2023-11-26 10:47:51,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2023-11-26 10:47:51,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2023-11-26 10:47:51,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2023-11-26 10:47:51,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2023-11-26 10:47:51,569 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2023-11-26 10:47:51,569 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2023-11-26 10:47:51,569 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2023-11-26 10:47:51,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2023-11-26 10:47:51,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2023-11-26 10:47:51,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2023-11-26 10:47:51,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2023-11-26 10:47:51,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2023-11-26 10:47:51,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2023-11-26 10:47:51,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2023-11-26 10:47:51,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2023-11-26 10:47:51,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2023-11-26 10:47:51,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2023-11-26 10:47:51,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2023-11-26 10:47:51,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2023-11-26 10:47:51,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2023-11-26 10:47:51,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2023-11-26 10:47:51,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2023-11-26 10:47:51,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2023-11-26 10:47:51,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2023-11-26 10:47:51,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2023-11-26 10:47:51,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2023-11-26 10:47:51,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2023-11-26 10:47:51,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2023-11-26 10:47:51,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2023-11-26 10:47:51,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2023-11-26 10:47:51,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2023-11-26 10:47:51,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2023-11-26 10:47:51,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2023-11-26 10:47:51,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2023-11-26 10:47:51,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2023-11-26 10:47:51,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2023-11-26 10:47:51,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2023-11-26 10:47:51,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2023-11-26 10:47:51,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:47:51,584 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 10:47:51,584 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 10:47:51,585 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-26 10:47:51,738 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:47:51,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 445 places, 484 transitions, 986 flow [2023-11-26 10:47:51,938 INFO L124 PetriNetUnfolderBase]: 49/521 cut-off events. [2023-11-26 10:47:51,939 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 10:47:51,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 521 events. 49/521 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2281 event pairs, 0 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 466. Up to 8 conditions per place. [2023-11-26 10:47:51,950 INFO L82 GeneralOperation]: Start removeDead. Operand has 445 places, 484 transitions, 986 flow [2023-11-26 10:47:51,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 445 places, 484 transitions, 986 flow [2023-11-26 10:47:51,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:47:51,975 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;@62723242, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:47:51,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2023-11-26 10:47:51,979 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:47:51,979 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2023-11-26 10:47:51,980 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:47:51,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:51,980 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] [2023-11-26 10:47:51,980 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-26 10:47:51,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:51,981 INFO L85 PathProgramCache]: Analyzing trace with hash -598313414, now seen corresponding path program 1 times [2023-11-26 10:47:51,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:51,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040208071] [2023-11-26 10:47:51,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:51,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:52,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:52,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:52,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040208071] [2023-11-26 10:47:52,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040208071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:52,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:52,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:47:52,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603029256] [2023-11-26 10:47:52,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:52,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:47:52,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:52,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:47:52,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:47:52,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 395 out of 484 [2023-11-26 10:47:52,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 484 transitions, 986 flow. Second operand has 2 states, 2 states have (on average 396.0) internal successors, (792), 2 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:52,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:52,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 395 of 484 [2023-11-26 10:47:52,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:53,651 INFO L124 PetriNetUnfolderBase]: 372/4785 cut-off events. [2023-11-26 10:47:53,651 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2023-11-26 10:47:53,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5282 conditions, 4785 events. 372/4785 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 46172 event pairs, 220 based on Foata normal form. 748/4974 useless extension candidates. Maximal degree in co-relation 4174. Up to 376 conditions per place. [2023-11-26 10:47:53,732 INFO L140 encePairwiseOnDemand]: 419/484 looper letters, 15 selfloop transitions, 0 changer transitions 0/384 dead transitions. [2023-11-26 10:47:53,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 384 transitions, 816 flow [2023-11-26 10:47:53,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:47:53,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 10:47:53,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 870 transitions. [2023-11-26 10:47:53,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8987603305785123 [2023-11-26 10:47:53,738 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 870 transitions. [2023-11-26 10:47:53,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 870 transitions. [2023-11-26 10:47:53,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:53,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 870 transitions. [2023-11-26 10:47:53,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 435.0) internal successors, (870), 2 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:53,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 484.0) internal successors, (1452), 3 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:53,747 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 484.0) internal successors, (1452), 3 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:53,748 INFO L175 Difference]: Start difference. First operand has 445 places, 484 transitions, 986 flow. Second operand 2 states and 870 transitions. [2023-11-26 10:47:53,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 384 transitions, 816 flow [2023-11-26 10:47:53,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 384 transitions, 814 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-26 10:47:53,760 INFO L231 Difference]: Finished difference. Result has 380 places, 384 transitions, 784 flow [2023-11-26 10:47:53,761 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=784, PETRI_PLACES=380, PETRI_TRANSITIONS=384} [2023-11-26 10:47:53,762 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -65 predicate places. [2023-11-26 10:47:53,762 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 384 transitions, 784 flow [2023-11-26 10:47:53,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 396.0) internal successors, (792), 2 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:53,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:53,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:53,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:47:53,764 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-26 10:47:53,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:53,765 INFO L85 PathProgramCache]: Analyzing trace with hash 546480701, now seen corresponding path program 1 times [2023-11-26 10:47:53,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:53,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726744171] [2023-11-26 10:47:53,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:53,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:53,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:53,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:53,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726744171] [2023-11-26 10:47:53,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726744171] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:53,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:53,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:53,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552825547] [2023-11-26 10:47:53,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:53,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:53,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:53,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:53,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:53,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 484 [2023-11-26 10:47:53,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 384 transitions, 784 flow. Second operand has 3 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:53,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:53,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 484 [2023-11-26 10:47:53,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:58,249 INFO L124 PetriNetUnfolderBase]: 2035/17988 cut-off events. [2023-11-26 10:47:58,249 INFO L125 PetriNetUnfolderBase]: For 280/280 co-relation queries the response was YES. [2023-11-26 10:47:58,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20725 conditions, 17988 events. 2035/17988 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 233291 event pairs, 595 based on Foata normal form. 0/15902 useless extension candidates. Maximal degree in co-relation 20719. Up to 1412 conditions per place. [2023-11-26 10:47:58,463 INFO L140 encePairwiseOnDemand]: 472/484 looper letters, 41 selfloop transitions, 9 changer transitions 0/407 dead transitions. [2023-11-26 10:47:58,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 407 transitions, 940 flow [2023-11-26 10:47:58,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:58,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:58,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1202 transitions. [2023-11-26 10:47:58,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8278236914600551 [2023-11-26 10:47:58,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1202 transitions. [2023-11-26 10:47:58,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1202 transitions. [2023-11-26 10:47:58,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:58,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1202 transitions. [2023-11-26 10:47:58,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 400.6666666666667) internal successors, (1202), 3 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:58,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:58,484 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:58,484 INFO L175 Difference]: Start difference. First operand has 380 places, 384 transitions, 784 flow. Second operand 3 states and 1202 transitions. [2023-11-26 10:47:58,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 407 transitions, 940 flow [2023-11-26 10:47:58,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 407 transitions, 940 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:47:58,496 INFO L231 Difference]: Finished difference. Result has 384 places, 393 transitions, 862 flow [2023-11-26 10:47:58,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=384, PETRI_TRANSITIONS=393} [2023-11-26 10:47:58,498 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -61 predicate places. [2023-11-26 10:47:58,499 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 393 transitions, 862 flow [2023-11-26 10:47:58,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:58,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:58,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:58,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:47:58,501 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-26 10:47:58,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:58,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1894999635, now seen corresponding path program 1 times [2023-11-26 10:47:58,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:58,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573098145] [2023-11-26 10:47:58,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:58,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:59,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:59,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:59,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573098145] [2023-11-26 10:47:59,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573098145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:59,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:59,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:47:59,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44073866] [2023-11-26 10:47:59,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:59,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:47:59,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:59,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:47:59,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:47:59,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 484 [2023-11-26 10:47:59,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 393 transitions, 862 flow. Second operand has 6 states, 6 states have (on average 333.6666666666667) internal successors, (2002), 6 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:59,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:59,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 484 [2023-11-26 10:47:59,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand