./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/05_tas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/05_tas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ee4025da2c93fbd4be930880192a9e0c94d8979f3d9117e228b55f99542c3b0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:15:26,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:15:26,168 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:15:26,174 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:15:26,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:15:26,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:15:26,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:15:26,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:15:26,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:15:26,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:15:26,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:15:26,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:15:26,210 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:15:26,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:15:26,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:15:26,212 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:15:26,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:15:26,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:15:26,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:15:26,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:15:26,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:15:26,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:15:26,216 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:15:26,216 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:15:26,216 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:15:26,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:15:26,217 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:15:26,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:15:26,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:15:26,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:15:26,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:15:26,220 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:15:26,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:15:26,221 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:15:26,221 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:15:26,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:15:26,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:15:26,223 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:15:26,223 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:15:26,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:15:26,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:15:26,225 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_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ee4025da2c93fbd4be930880192a9e0c94d8979f3d9117e228b55f99542c3b0 [2023-11-21 22:15:26,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:15:26,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:15:26,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:15:26,544 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:15:26,545 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:15:26,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-ext/05_tas.i [2023-11-21 22:15:29,925 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:15:30,325 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:15:30,326 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/sv-benchmarks/c/pthread-ext/05_tas.i [2023-11-21 22:15:30,352 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx/data/994fe419e/78078f55e7dc427795648f206952d364/FLAG0cf06872d [2023-11-21 22:15:30,371 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx/data/994fe419e/78078f55e7dc427795648f206952d364 [2023-11-21 22:15:30,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:15:30,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:15:30,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:15:30,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:15:30,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:15:30,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:30" (1/1) ... [2023-11-21 22:15:30,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d308a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:30, skipping insertion in model container [2023-11-21 22:15:30,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:30" (1/1) ... [2023-11-21 22:15:30,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:15:30,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:15:30,925 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:15:31,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:15:31,057 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:15:31,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:31 WrapperNode [2023-11-21 22:15:31,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:15:31,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:15:31,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:15:31,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:15:31,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:31" (1/1) ... [2023-11-21 22:15:31,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:31" (1/1) ... [2023-11-21 22:15:31,144 INFO L138 Inliner]: procedures = 169, calls = 29, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 180 [2023-11-21 22:15:31,144 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:15:31,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:15:31,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:15:31,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:15:31,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:31" (1/1) ... [2023-11-21 22:15:31,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:31" (1/1) ... [2023-11-21 22:15:31,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:31" (1/1) ... [2023-11-21 22:15:31,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:31" (1/1) ... [2023-11-21 22:15:31,214 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:31" (1/1) ... [2023-11-21 22:15:31,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:31" (1/1) ... [2023-11-21 22:15:31,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:31" (1/1) ... [2023-11-21 22:15:31,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:31" (1/1) ... [2023-11-21 22:15:31,238 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:15:31,240 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:15:31,240 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:15:31,240 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:15:31,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:31" (1/1) ... [2023-11-21 22:15:31,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:15:31,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:31,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:31,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ad451-1422-4fed-a349-c59cc6726e02/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:15:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:15:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-21 22:15:31,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-21 22:15:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:15:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:15:31,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:15:31,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:15:31,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:15:31,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:15:31,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:15:31,332 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:15:31,518 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:15:31,520 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:15:31,996 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:15:32,352 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:15:32,352 INFO L308 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-21 22:15:32,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:32 BoogieIcfgContainer [2023-11-21 22:15:32,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:15:32,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:15:32,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:15:32,360 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:15:32,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:15:30" (1/3) ... [2023-11-21 22:15:32,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c245fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:15:32, skipping insertion in model container [2023-11-21 22:15:32,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:31" (2/3) ... [2023-11-21 22:15:32,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c245fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:15:32, skipping insertion in model container [2023-11-21 22:15:32,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:32" (3/3) ... [2023-11-21 22:15:32,365 INFO L112 eAbstractionObserver]: Analyzing ICFG 05_tas.i [2023-11-21 22:15:32,375 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:15:32,387 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:15:32,387 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-21 22:15:32,388 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:15:32,522 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:15:32,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 154 transitions, 312 flow [2023-11-21 22:15:32,691 INFO L124 PetriNetUnfolderBase]: 13/165 cut-off events. [2023-11-21 22:15:32,694 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:15:32,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 165 events. 13/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 201 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 139. Up to 4 conditions per place. [2023-11-21 22:15:32,706 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 154 transitions, 312 flow [2023-11-21 22:15:32,713 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 154 transitions, 312 flow [2023-11-21 22:15:32,724 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:15:32,734 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;@5382a6cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:15:32,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2023-11-21 22:15:32,746 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:15:32,747 INFO L124 PetriNetUnfolderBase]: 3/46 cut-off events. [2023-11-21 22:15:32,747 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:15:32,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:32,748 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] [2023-11-21 22:15:32,748 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-21 22:15:32,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:32,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1514376419, now seen corresponding path program 1 times [2023-11-21 22:15:32,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:32,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902560561] [2023-11-21 22:15:32,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:32,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:33,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:33,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:33,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902560561] [2023-11-21 22:15:33,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902560561] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:33,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:33,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:15:33,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799564836] [2023-11-21 22:15:33,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:33,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:15:33,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:33,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:15:33,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:15:33,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 154 [2023-11-21 22:15:33,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 154 transitions, 312 flow. Second operand has 2 states, 2 states have (on average 132.0) internal successors, (264), 2 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:33,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:33,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 154 [2023-11-21 22:15:33,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:33,552 INFO L124 PetriNetUnfolderBase]: 3/125 cut-off events. [2023-11-21 22:15:33,553 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:15:33,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 125 events. 3/125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 11/121 useless extension candidates. Maximal degree in co-relation 108. Up to 4 conditions per place. [2023-11-21 22:15:33,555 INFO L140 encePairwiseOnDemand]: 137/154 looper letters, 3 selfloop transitions, 0 changer transitions 0/121 dead transitions. [2023-11-21 22:15:33,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 121 transitions, 252 flow [2023-11-21 22:15:33,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:15:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:15:33,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 282 transitions. [2023-11-21 22:15:33,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9155844155844156 [2023-11-21 22:15:33,578 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 282 transitions. [2023-11-21 22:15:33,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 282 transitions. [2023-11-21 22:15:33,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:33,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 282 transitions. [2023-11-21 22:15:33,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 141.0) internal successors, (282), 2 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:33,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:33,600 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:33,602 INFO L175 Difference]: Start difference. First operand has 145 places, 154 transitions, 312 flow. Second operand 2 states and 282 transitions. [2023-11-21 22:15:33,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 121 transitions, 252 flow [2023-11-21 22:15:33,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 121 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:15:33,612 INFO L231 Difference]: Finished difference. Result has 122 places, 121 transitions, 246 flow [2023-11-21 22:15:33,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=246, PETRI_PLACES=122, PETRI_TRANSITIONS=121} [2023-11-21 22:15:33,619 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, -23 predicate places. [2023-11-21 22:15:33,620 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 121 transitions, 246 flow [2023-11-21 22:15:33,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 132.0) internal successors, (264), 2 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:33,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:33,621 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] [2023-11-21 22:15:33,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:15:33,622 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-21 22:15:33,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:33,623 INFO L85 PathProgramCache]: Analyzing trace with hash 626670726, now seen corresponding path program 1 times [2023-11-21 22:15:33,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:33,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923204076] [2023-11-21 22:15:33,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:33,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:33,672 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:15:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:33,717 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:15:33,717 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:15:33,721 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2023-11-21 22:15:33,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2023-11-21 22:15:33,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2023-11-21 22:15:33,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2023-11-21 22:15:33,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2023-11-21 22:15:33,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2023-11-21 22:15:33,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2023-11-21 22:15:33,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2023-11-21 22:15:33,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2023-11-21 22:15:33,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2023-11-21 22:15:33,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2023-11-21 22:15:33,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2023-11-21 22:15:33,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2023-11-21 22:15:33,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2023-11-21 22:15:33,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2023-11-21 22:15:33,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2023-11-21 22:15:33,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2023-11-21 22:15:33,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2023-11-21 22:15:33,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2023-11-21 22:15:33,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2023-11-21 22:15:33,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2023-11-21 22:15:33,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2023-11-21 22:15:33,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2023-11-21 22:15:33,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2023-11-21 22:15:33,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2023-11-21 22:15:33,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2023-11-21 22:15:33,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2023-11-21 22:15:33,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2023-11-21 22:15:33,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2023-11-21 22:15:33,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2023-11-21 22:15:33,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2023-11-21 22:15:33,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2023-11-21 22:15:33,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2023-11-21 22:15:33,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:15:33,735 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 22:15:33,738 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:15:33,738 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-21 22:15:33,845 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:15:33,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 281 transitions, 572 flow [2023-11-21 22:15:33,992 INFO L124 PetriNetUnfolderBase]: 25/305 cut-off events. [2023-11-21 22:15:33,993 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:15:34,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 305 events. 25/305 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 766 event pairs, 0 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 265. Up to 6 conditions per place. [2023-11-21 22:15:34,005 INFO L82 GeneralOperation]: Start removeDead. Operand has 263 places, 281 transitions, 572 flow [2023-11-21 22:15:34,017 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 281 transitions, 572 flow [2023-11-21 22:15:34,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:15:34,022 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;@5382a6cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:15:34,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-11-21 22:15:34,030 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:15:34,031 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2023-11-21 22:15:34,032 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:15:34,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:34,033 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] [2023-11-21 22:15:34,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-21 22:15:34,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:34,041 INFO L85 PathProgramCache]: Analyzing trace with hash 369739644, now seen corresponding path program 1 times [2023-11-21 22:15:34,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:34,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773620213] [2023-11-21 22:15:34,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:34,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:34,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:34,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773620213] [2023-11-21 22:15:34,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773620213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:34,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:34,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:15:34,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215604464] [2023-11-21 22:15:34,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:34,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:15:34,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:34,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:15:34,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:15:34,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 281 [2023-11-21 22:15:34,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 281 transitions, 572 flow. Second operand has 2 states, 2 states have (on average 238.0) internal successors, (476), 2 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:34,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:34,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 281 [2023-11-21 22:15:34,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:34,577 INFO L124 PetriNetUnfolderBase]: 15/435 cut-off events. [2023-11-21 22:15:34,578 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-21 22:15:34,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 435 events. 15/435 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1500 event pairs, 2 based on Foata normal form. 43/417 useless extension candidates. Maximal degree in co-relation 324. Up to 16 conditions per place. [2023-11-21 22:15:34,585 INFO L140 encePairwiseOnDemand]: 249/281 looper letters, 6 selfloop transitions, 0 changer transitions 0/222 dead transitions. [2023-11-21 22:15:34,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 222 transitions, 466 flow [2023-11-21 22:15:34,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:15:34,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:15:34,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 512 transitions. [2023-11-21 22:15:34,591 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9110320284697508 [2023-11-21 22:15:34,591 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 512 transitions. [2023-11-21 22:15:34,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 512 transitions. [2023-11-21 22:15:34,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:34,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 512 transitions. [2023-11-21 22:15:34,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 256.0) internal successors, (512), 2 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:34,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:34,599 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:34,599 INFO L175 Difference]: Start difference. First operand has 263 places, 281 transitions, 572 flow. Second operand 2 states and 512 transitions. [2023-11-21 22:15:34,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 222 transitions, 466 flow [2023-11-21 22:15:34,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 222 transitions, 466 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:15:34,610 INFO L231 Difference]: Finished difference. Result has 222 places, 222 transitions, 454 flow [2023-11-21 22:15:34,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=454, PETRI_PLACES=222, PETRI_TRANSITIONS=222} [2023-11-21 22:15:34,612 INFO L281 CegarLoopForPetriNet]: 263 programPoint places, -41 predicate places. [2023-11-21 22:15:34,612 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 222 transitions, 454 flow [2023-11-21 22:15:34,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 238.0) internal successors, (476), 2 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:34,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:34,613 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:15:34,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:15:34,614 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-21 22:15:34,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:34,614 INFO L85 PathProgramCache]: Analyzing trace with hash 790369125, now seen corresponding path program 1 times [2023-11-21 22:15:34,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:34,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36044002] [2023-11-21 22:15:34,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:34,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:35,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:35,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:35,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36044002] [2023-11-21 22:15:35,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36044002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:35,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:35,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:15:35,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8513498] [2023-11-21 22:15:35,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:35,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:15:35,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:35,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:15:35,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:15:35,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 281 [2023-11-21 22:15:35,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 222 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 214.5) internal successors, (1287), 6 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:35,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:35,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 281 [2023-11-21 22:15:35,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:36,593 INFO L124 PetriNetUnfolderBase]: 281/2010 cut-off events. [2023-11-21 22:15:36,593 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2023-11-21 22:15:36,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2553 conditions, 2010 events. 281/2010 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 14043 event pairs, 60 based on Foata normal form. 0/1731 useless extension candidates. Maximal degree in co-relation 2548. Up to 367 conditions per place. [2023-11-21 22:15:36,612 INFO L140 encePairwiseOnDemand]: 261/281 looper letters, 36 selfloop transitions, 36 changer transitions 0/264 dead transitions. [2023-11-21 22:15:36,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 264 transitions, 702 flow [2023-11-21 22:15:36,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:15:36,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:15:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1352 transitions. [2023-11-21 22:15:36,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8018979833926453 [2023-11-21 22:15:36,618 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1352 transitions. [2023-11-21 22:15:36,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1352 transitions. [2023-11-21 22:15:36,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:36,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1352 transitions. [2023-11-21 22:15:36,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 225.33333333333334) internal successors, (1352), 6 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:36,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 281.0) internal successors, (1967), 7 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:36,631 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 281.0) internal successors, (1967), 7 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:36,631 INFO L175 Difference]: Start difference. First operand has 222 places, 222 transitions, 454 flow. Second operand 6 states and 1352 transitions. [2023-11-21 22:15:36,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 264 transitions, 702 flow [2023-11-21 22:15:36,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 264 transitions, 702 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:15:36,639 INFO L231 Difference]: Finished difference. Result has 232 places, 257 transitions, 706 flow [2023-11-21 22:15:36,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=706, PETRI_PLACES=232, PETRI_TRANSITIONS=257} [2023-11-21 22:15:36,641 INFO L281 CegarLoopForPetriNet]: 263 programPoint places, -31 predicate places. [2023-11-21 22:15:36,641 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 257 transitions, 706 flow [2023-11-21 22:15:36,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 214.5) internal successors, (1287), 6 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:36,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:36,643 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] [2023-11-21 22:15:36,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:15:36,643 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-21 22:15:36,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:36,644 INFO L85 PathProgramCache]: Analyzing trace with hash 467496717, now seen corresponding path program 1 times [2023-11-21 22:15:36,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:36,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165503498] [2023-11-21 22:15:36,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:36,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:36,657 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:15:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:36,676 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:15:36,676 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:15:36,676 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2023-11-21 22:15:36,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2023-11-21 22:15:36,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2023-11-21 22:15:36,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2023-11-21 22:15:36,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2023-11-21 22:15:36,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2023-11-21 22:15:36,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2023-11-21 22:15:36,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2023-11-21 22:15:36,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2023-11-21 22:15:36,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2023-11-21 22:15:36,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2023-11-21 22:15:36,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2023-11-21 22:15:36,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2023-11-21 22:15:36,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2023-11-21 22:15:36,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2023-11-21 22:15:36,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2023-11-21 22:15:36,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2023-11-21 22:15:36,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2023-11-21 22:15:36,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2023-11-21 22:15:36,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2023-11-21 22:15:36,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2023-11-21 22:15:36,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2023-11-21 22:15:36,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2023-11-21 22:15:36,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2023-11-21 22:15:36,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2023-11-21 22:15:36,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2023-11-21 22:15:36,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2023-11-21 22:15:36,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2023-11-21 22:15:36,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2023-11-21 22:15:36,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2023-11-21 22:15:36,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2023-11-21 22:15:36,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2023-11-21 22:15:36,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2023-11-21 22:15:36,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2023-11-21 22:15:36,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2023-11-21 22:15:36,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2023-11-21 22:15:36,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2023-11-21 22:15:36,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2023-11-21 22:15:36,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2023-11-21 22:15:36,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2023-11-21 22:15:36,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2023-11-21 22:15:36,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2023-11-21 22:15:36,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2023-11-21 22:15:36,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2023-11-21 22:15:36,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2023-11-21 22:15:36,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2023-11-21 22:15:36,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2023-11-21 22:15:36,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2023-11-21 22:15:36,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2023-11-21 22:15:36,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:15:36,701 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-21 22:15:36,702 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:15:36,702 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-21 22:15:36,819 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:15:36,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 381 places, 408 transitions, 834 flow [2023-11-21 22:15:36,966 INFO L124 PetriNetUnfolderBase]: 37/445 cut-off events. [2023-11-21 22:15:36,966 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 22:15:36,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 445 events. 37/445 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1509 event pairs, 0 based on Foata normal form. 0/356 useless extension candidates. Maximal degree in co-relation 391. Up to 8 conditions per place. [2023-11-21 22:15:36,973 INFO L82 GeneralOperation]: Start removeDead. Operand has 381 places, 408 transitions, 834 flow [2023-11-21 22:15:36,985 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 381 places, 408 transitions, 834 flow [2023-11-21 22:15:36,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:15:36,991 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;@5382a6cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:15:36,991 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2023-11-21 22:15:36,998 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:15:36,998 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2023-11-21 22:15:36,998 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:15:36,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:36,998 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, 1, 1, 1, 1] [2023-11-21 22:15:36,999 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-21 22:15:36,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:36,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1234601258, now seen corresponding path program 1 times [2023-11-21 22:15:36,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:36,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566431452] [2023-11-21 22:15:37,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:37,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:37,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:37,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:37,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566431452] [2023-11-21 22:15:37,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566431452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:37,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:37,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:15:37,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524722268] [2023-11-21 22:15:37,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:37,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:15:37,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:37,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:15:37,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:15:37,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 408 [2023-11-21 22:15:37,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 408 transitions, 834 flow. Second operand has 2 states, 2 states have (on average 344.0) internal successors, (688), 2 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:37,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:37,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 408 [2023-11-21 22:15:37,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:37,591 INFO L124 PetriNetUnfolderBase]: 51/1157 cut-off events. [2023-11-21 22:15:37,591 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-21 22:15:37,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1237 conditions, 1157 events. 51/1157 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7021 event pairs, 10 based on Foata normal form. 123/1108 useless extension candidates. Maximal degree in co-relation 762. Up to 52 conditions per place. [2023-11-21 22:15:37,617 INFO L140 encePairwiseOnDemand]: 361/408 looper letters, 9 selfloop transitions, 0 changer transitions 0/323 dead transitions. [2023-11-21 22:15:37,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 323 transitions, 682 flow [2023-11-21 22:15:37,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:15:37,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:15:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 742 transitions. [2023-11-21 22:15:37,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9093137254901961 [2023-11-21 22:15:37,622 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 742 transitions. [2023-11-21 22:15:37,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 742 transitions. [2023-11-21 22:15:37,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:37,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 742 transitions. [2023-11-21 22:15:37,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 371.0) internal successors, (742), 2 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:37,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 408.0) internal successors, (1224), 3 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:37,630 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 408.0) internal successors, (1224), 3 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:37,630 INFO L175 Difference]: Start difference. First operand has 381 places, 408 transitions, 834 flow. Second operand 2 states and 742 transitions. [2023-11-21 22:15:37,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 323 transitions, 682 flow [2023-11-21 22:15:37,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 323 transitions, 680 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-21 22:15:37,640 INFO L231 Difference]: Finished difference. Result has 322 places, 323 transitions, 662 flow [2023-11-21 22:15:37,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=662, PETRI_PLACES=322, PETRI_TRANSITIONS=323} [2023-11-21 22:15:37,644 INFO L281 CegarLoopForPetriNet]: 381 programPoint places, -59 predicate places. [2023-11-21 22:15:37,644 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 323 transitions, 662 flow [2023-11-21 22:15:37,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 344.0) internal successors, (688), 2 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:37,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:37,646 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:15:37,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:15:37,646 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-21 22:15:37,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:37,647 INFO L85 PathProgramCache]: Analyzing trace with hash 805876799, now seen corresponding path program 1 times [2023-11-21 22:15:37,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:37,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409997479] [2023-11-21 22:15:37,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:37,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:38,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:38,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:38,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409997479] [2023-11-21 22:15:38,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409997479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:38,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:38,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:15:38,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792128690] [2023-11-21 22:15:38,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:38,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:15:38,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:38,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:15:38,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:15:38,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 408 [2023-11-21 22:15:38,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 323 transitions, 662 flow. Second operand has 6 states, 6 states have (on average 316.5) internal successors, (1899), 6 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:38,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:38,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 408 [2023-11-21 22:15:38,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:43,904 INFO L124 PetriNetUnfolderBase]: 3556/14753 cut-off events. [2023-11-21 22:15:43,905 INFO L125 PetriNetUnfolderBase]: For 649/649 co-relation queries the response was YES. [2023-11-21 22:15:44,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20302 conditions, 14753 events. 3556/14753 cut-off events. For 649/649 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 148031 event pairs, 1038 based on Foata normal form. 0/12712 useless extension candidates. Maximal degree in co-relation 20296. Up to 4142 conditions per place. [2023-11-21 22:15:44,226 INFO L140 encePairwiseOnDemand]: 382/408 looper letters, 47 selfloop transitions, 60 changer transitions 0/393 dead transitions. [2023-11-21 22:15:44,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 393 transitions, 1056 flow [2023-11-21 22:15:44,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:15:44,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:15:44,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1999 transitions. [2023-11-21 22:15:44,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8165849673202614 [2023-11-21 22:15:44,235 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1999 transitions. [2023-11-21 22:15:44,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1999 transitions. [2023-11-21 22:15:44,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:44,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1999 transitions. [2023-11-21 22:15:44,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 333.1666666666667) internal successors, (1999), 6 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:44,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 408.0) internal successors, (2856), 7 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:44,256 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 408.0) internal successors, (2856), 7 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:44,257 INFO L175 Difference]: Start difference. First operand has 322 places, 323 transitions, 662 flow. Second operand 6 states and 1999 transitions. [2023-11-21 22:15:44,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 393 transitions, 1056 flow [2023-11-21 22:15:44,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 393 transitions, 1056 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:15:44,270 INFO L231 Difference]: Finished difference. Result has 332 places, 382 transitions, 1070 flow [2023-11-21 22:15:44,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1070, PETRI_PLACES=332, PETRI_TRANSITIONS=382} [2023-11-21 22:15:44,273 INFO L281 CegarLoopForPetriNet]: 381 programPoint places, -49 predicate places. [2023-11-21 22:15:44,273 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 382 transitions, 1070 flow [2023-11-21 22:15:44,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 316.5) internal successors, (1899), 6 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:44,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:44,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:15:44,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:15:44,277 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-21 22:15:44,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:44,278 INFO L85 PathProgramCache]: Analyzing trace with hash 415037009, now seen corresponding path program 1 times [2023-11-21 22:15:44,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:44,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929266616] [2023-11-21 22:15:44,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:44,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:44,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 22:15:44,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:44,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929266616] [2023-11-21 22:15:44,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929266616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:44,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:44,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:15:44,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157036851] [2023-11-21 22:15:44,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:44,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:15:44,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:44,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:15:44,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:15:45,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 408 [2023-11-21 22:15:45,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 382 transitions, 1070 flow. Second operand has 6 states, 6 states have (on average 316.6666666666667) internal successors, (1900), 6 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:45,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:45,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 408 [2023-11-21 22:15:45,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:55,227 INFO L124 PetriNetUnfolderBase]: 10115/39580 cut-off events. [2023-11-21 22:15:55,228 INFO L125 PetriNetUnfolderBase]: For 15223/19162 co-relation queries the response was YES. [2023-11-21 22:15:55,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68005 conditions, 39580 events. 10115/39580 cut-off events. For 15223/19162 co-relation queries the response was YES. Maximal size of possible extension queue 735. Compared 483868 event pairs, 1731 based on Foata normal form. 207/34532 useless extension candidates. Maximal degree in co-relation 67994. Up to 10595 conditions per place. [2023-11-21 22:15:55,686 INFO L140 encePairwiseOnDemand]: 382/408 looper letters, 92 selfloop transitions, 164 changer transitions 0/552 dead transitions. [2023-11-21 22:15:55,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 552 transitions, 2416 flow [2023-11-21 22:15:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:15:55,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:15:55,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1995 transitions. [2023-11-21 22:15:55,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8149509803921569 [2023-11-21 22:15:55,693 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1995 transitions. [2023-11-21 22:15:55,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1995 transitions. [2023-11-21 22:15:55,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:55,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1995 transitions. [2023-11-21 22:15:55,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 332.5) internal successors, (1995), 6 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:55,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 408.0) internal successors, (2856), 7 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:55,711 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 408.0) internal successors, (2856), 7 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:55,711 INFO L175 Difference]: Start difference. First operand has 332 places, 382 transitions, 1070 flow. Second operand 6 states and 1995 transitions. [2023-11-21 22:15:55,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 552 transitions, 2416 flow [2023-11-21 22:15:55,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 552 transitions, 2416 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:15:55,763 INFO L231 Difference]: Finished difference. Result has 342 places, 545 transitions, 2634 flow [2023-11-21 22:15:55,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=1070, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2634, PETRI_PLACES=342, PETRI_TRANSITIONS=545} [2023-11-21 22:15:55,767 INFO L281 CegarLoopForPetriNet]: 381 programPoint places, -39 predicate places. [2023-11-21 22:15:55,769 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 545 transitions, 2634 flow [2023-11-21 22:15:55,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 316.6666666666667) internal successors, (1900), 6 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:55,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:55,770 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:15:55,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:15:55,771 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-21 22:15:55,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:55,771 INFO L85 PathProgramCache]: Analyzing trace with hash 255946902, now seen corresponding path program 1 times [2023-11-21 22:15:55,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:55,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211201103] [2023-11-21 22:15:55,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:55,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:55,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:15:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:55,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:15:55,817 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:15:55,817 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2023-11-21 22:15:55,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2023-11-21 22:15:55,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2023-11-21 22:15:55,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2023-11-21 22:15:55,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2023-11-21 22:15:55,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2023-11-21 22:15:55,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2023-11-21 22:15:55,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2023-11-21 22:15:55,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2023-11-21 22:15:55,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2023-11-21 22:15:55,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2023-11-21 22:15:55,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2023-11-21 22:15:55,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2023-11-21 22:15:55,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2023-11-21 22:15:55,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2023-11-21 22:15:55,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2023-11-21 22:15:55,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2023-11-21 22:15:55,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2023-11-21 22:15:55,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2023-11-21 22:15:55,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2023-11-21 22:15:55,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2023-11-21 22:15:55,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2023-11-21 22:15:55,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2023-11-21 22:15:55,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2023-11-21 22:15:55,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2023-11-21 22:15:55,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2023-11-21 22:15:55,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2023-11-21 22:15:55,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2023-11-21 22:15:55,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2023-11-21 22:15:55,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2023-11-21 22:15:55,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2023-11-21 22:15:55,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2023-11-21 22:15:55,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2023-11-21 22:15:55,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2023-11-21 22:15:55,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2023-11-21 22:15:55,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2023-11-21 22:15:55,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2023-11-21 22:15:55,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2023-11-21 22:15:55,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2023-11-21 22:15:55,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2023-11-21 22:15:55,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2023-11-21 22:15:55,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2023-11-21 22:15:55,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2023-11-21 22:15:55,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2023-11-21 22:15:55,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2023-11-21 22:15:55,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2023-11-21 22:15:55,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2023-11-21 22:15:55,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2023-11-21 22:15:55,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2023-11-21 22:15:55,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2023-11-21 22:15:55,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2023-11-21 22:15:55,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2023-11-21 22:15:55,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2023-11-21 22:15:55,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2023-11-21 22:15:55,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2023-11-21 22:15:55,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2023-11-21 22:15:55,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2023-11-21 22:15:55,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2023-11-21 22:15:55,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2023-11-21 22:15:55,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2023-11-21 22:15:55,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2023-11-21 22:15:55,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2023-11-21 22:15:55,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2023-11-21 22:15:55,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2023-11-21 22:15:55,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2023-11-21 22:15:55,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:15:55,831 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-21 22:15:55,832 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:15:55,832 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-21 22:15:55,988 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:15:55,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 499 places, 535 transitions, 1098 flow [2023-11-21 22:15:56,345 INFO L124 PetriNetUnfolderBase]: 49/585 cut-off events. [2023-11-21 22:15:56,346 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-21 22:15:56,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 585 events. 49/585 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2329 event pairs, 0 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 517. Up to 10 conditions per place. [2023-11-21 22:15:56,357 INFO L82 GeneralOperation]: Start removeDead. Operand has 499 places, 535 transitions, 1098 flow [2023-11-21 22:15:56,372 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 499 places, 535 transitions, 1098 flow [2023-11-21 22:15:56,373 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:15:56,374 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;@5382a6cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:15:56,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2023-11-21 22:15:56,382 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:15:56,382 INFO L124 PetriNetUnfolderBase]: 3/46 cut-off events. [2023-11-21 22:15:56,382 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:15:56,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:56,383 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] [2023-11-21 22:15:56,383 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2023-11-21 22:15:56,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:56,384 INFO L85 PathProgramCache]: Analyzing trace with hash 174045549, now seen corresponding path program 1 times [2023-11-21 22:15:56,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:56,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622369828] [2023-11-21 22:15:56,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:56,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:56,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:56,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:56,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622369828] [2023-11-21 22:15:56,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622369828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:56,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:56,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:15:56,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137782434] [2023-11-21 22:15:56,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:56,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:15:56,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:56,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:15:56,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:15:56,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 535 [2023-11-21 22:15:56,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 535 transitions, 1098 flow. Second operand has 2 states, 2 states have (on average 450.0) internal successors, (900), 2 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:56,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:56,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 535 [2023-11-21 22:15:56,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:57,691 INFO L124 PetriNetUnfolderBase]: 147/2715 cut-off events. [2023-11-21 22:15:57,691 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2023-11-21 22:15:57,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2932 conditions, 2715 events. 147/2715 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 22563 event pairs, 34 based on Foata normal form. 307/2604 useless extension candidates. Maximal degree in co-relation 1656. Up to 148 conditions per place. [2023-11-21 22:15:57,776 INFO L140 encePairwiseOnDemand]: 473/535 looper letters, 12 selfloop transitions, 0 changer transitions 0/424 dead transitions. [2023-11-21 22:15:57,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 424 transitions, 900 flow [2023-11-21 22:15:57,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:15:57,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:15:57,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 972 transitions. [2023-11-21 22:15:57,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.908411214953271 [2023-11-21 22:15:57,782 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 972 transitions. [2023-11-21 22:15:57,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 972 transitions. [2023-11-21 22:15:57,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:57,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 972 transitions. [2023-11-21 22:15:57,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 486.0) internal successors, (972), 2 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:57,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 535.0) internal successors, (1605), 3 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:57,793 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 535.0) internal successors, (1605), 3 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:57,793 INFO L175 Difference]: Start difference. First operand has 499 places, 535 transitions, 1098 flow. Second operand 2 states and 972 transitions. [2023-11-21 22:15:57,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 424 transitions, 900 flow [2023-11-21 22:15:57,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 424 transitions, 894 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-21 22:15:57,807 INFO L231 Difference]: Finished difference. Result has 422 places, 424 transitions, 870 flow [2023-11-21 22:15:57,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=535, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=870, PETRI_PLACES=422, PETRI_TRANSITIONS=424} [2023-11-21 22:15:57,809 INFO L281 CegarLoopForPetriNet]: 499 programPoint places, -77 predicate places. [2023-11-21 22:15:57,809 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 424 transitions, 870 flow [2023-11-21 22:15:57,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 450.0) internal successors, (900), 2 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:57,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:57,810 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:15:57,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:15:57,811 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2023-11-21 22:15:57,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:57,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1221466762, now seen corresponding path program 1 times [2023-11-21 22:15:57,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:57,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495393178] [2023-11-21 22:15:57,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:57,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:58,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:58,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:58,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495393178] [2023-11-21 22:15:58,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495393178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:58,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:58,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:15:58,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586953863] [2023-11-21 22:15:58,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:58,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:15:58,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:58,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:15:58,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:15:59,184 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 535 [2023-11-21 22:15:59,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 424 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 418.5) internal successors, (2511), 6 states have internal predecessors, (2511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:59,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:59,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 535 [2023-11-21 22:15:59,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand