./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/peterson.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:06:45,122 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:06:45,230 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-25 00:06:45,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:06:45,238 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:06:45,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:06:45,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:06:45,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:06:45,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:06:45,270 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:06:45,271 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:06:45,272 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:06:45,272 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:06:45,273 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:06:45,274 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:06:45,274 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:06:45,275 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:06:45,275 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:06:45,276 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:06:45,277 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:06:45,277 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:06:45,278 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:06:45,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:06:45,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:06:45,280 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:06:45,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:06:45,282 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:06:45,282 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:06:45,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:06:45,283 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:06:45,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:06:45,284 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-25 00:06:45,285 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:06:45,285 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:06:45,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:06:45,286 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:06:45,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:06:45,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:06:45,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:06:45,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:06:45,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:06:45,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:06:45,292 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:06:45,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:06:45,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:06:45,293 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:06:45,293 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:06:45,293 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:06:45,294 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 [2023-11-25 00:06:45,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:06:45,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:06:45,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:06:45,770 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:06:45,770 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:06:45,772 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/pthread-atomic/peterson.i [2023-11-25 00:06:49,304 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:06:49,627 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:06:49,632 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/sv-benchmarks/c/pthread-atomic/peterson.i [2023-11-25 00:06:49,649 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/data/4df470ed8/8b8ec8f8393d47a7b7e491273a99adaa/FLAG527841fcb [2023-11-25 00:06:49,662 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/data/4df470ed8/8b8ec8f8393d47a7b7e491273a99adaa [2023-11-25 00:06:49,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:06:49,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:06:49,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:06:49,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:06:49,673 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:06:49,674 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:06:49" (1/1) ... [2023-11-25 00:06:49,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e4ef6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:49, skipping insertion in model container [2023-11-25 00:06:49,676 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:06:49" (1/1) ... [2023-11-25 00:06:49,725 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:06:50,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:06:50,149 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:06:50,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:06:50,271 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:50,271 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:50,277 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:06:50,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:50 WrapperNode [2023-11-25 00:06:50,278 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:06:50,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:06:50,280 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:06:50,280 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:06:50,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:50" (1/1) ... [2023-11-25 00:06:50,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:50" (1/1) ... [2023-11-25 00:06:50,357 INFO L138 Inliner]: procedures = 170, calls = 48, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 174 [2023-11-25 00:06:50,357 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:06:50,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:06:50,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:06:50,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:06:50,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:50" (1/1) ... [2023-11-25 00:06:50,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:50" (1/1) ... [2023-11-25 00:06:50,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:50" (1/1) ... [2023-11-25 00:06:50,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:50" (1/1) ... [2023-11-25 00:06:50,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:50" (1/1) ... [2023-11-25 00:06:50,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:50" (1/1) ... [2023-11-25 00:06:50,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:50" (1/1) ... [2023-11-25 00:06:50,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:50" (1/1) ... [2023-11-25 00:06:50,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:06:50,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:06:50,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:06:50,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:06:50,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:50" (1/1) ... [2023-11-25 00:06:50,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:06:50,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:06:50,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:06:50,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:06:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:06:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-11-25 00:06:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-11-25 00:06:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-25 00:06:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-25 00:06:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:06:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-25 00:06:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:06:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:06:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:06:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:06:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-25 00:06:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:06:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:06:50,508 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-25 00:06:50,657 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:06:50,659 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:06:51,011 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:06:51,094 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:06:51,094 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-25 00:06:51,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:51 BoogieIcfgContainer [2023-11-25 00:06:51,096 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:06:51,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:06:51,100 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:06:51,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:06:51,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:06:49" (1/3) ... [2023-11-25 00:06:51,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abb082b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:06:51, skipping insertion in model container [2023-11-25 00:06:51,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:50" (2/3) ... [2023-11-25 00:06:51,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abb082b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:06:51, skipping insertion in model container [2023-11-25 00:06:51,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:51" (3/3) ... [2023-11-25 00:06:51,112 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2023-11-25 00:06:51,123 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-25 00:06:51,135 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:06:51,135 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-25 00:06:51,135 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-25 00:06:51,248 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-25 00:06:51,286 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 127 places, 128 transitions, 270 flow [2023-11-25 00:06:51,800 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12085 states, 11876 states have (on average 3.0852980801616705) internal successors, (36641), 12084 states have internal predecessors, (36641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:51,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:06:51,839 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=FINITE_AUTOMATA, 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;@4143d6f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:06:51,839 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-25 00:06:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 12085 states, 11876 states have (on average 3.0852980801616705) internal successors, (36641), 12084 states have internal predecessors, (36641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:51,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-25 00:06:51,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:51,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:51,918 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-25 00:06:51,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:51,924 INFO L85 PathProgramCache]: Analyzing trace with hash -58561203, now seen corresponding path program 1 times [2023-11-25 00:06:51,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:51,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827111400] [2023-11-25 00:06:51,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:51,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:52,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:06:52,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:52,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827111400] [2023-11-25 00:06:52,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827111400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:52,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:52,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:06:52,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113161467] [2023-11-25 00:06:52,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:52,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-25 00:06:52,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:52,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-25 00:06:52,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:06:52,359 INFO L87 Difference]: Start difference. First operand has 12085 states, 11876 states have (on average 3.0852980801616705) internal successors, (36641), 12084 states have internal predecessors, (36641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 20.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:52,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:52,701 INFO L93 Difference]: Finished difference Result 6640 states and 18887 transitions. [2023-11-25 00:06:52,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-25 00:06:52,704 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 20.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-25 00:06:52,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:52,789 INFO L225 Difference]: With dead ends: 6640 [2023-11-25 00:06:52,790 INFO L226 Difference]: Without dead ends: 6611 [2023-11-25 00:06:52,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:06:52,796 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:52,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:06:52,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6611 states. [2023-11-25 00:06:53,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6611 to 6611. [2023-11-25 00:06:53,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6611 states, 6579 states have (on average 2.8583371333029337) internal successors, (18805), 6610 states have internal predecessors, (18805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:53,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 18805 transitions. [2023-11-25 00:06:53,306 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 18805 transitions. Word has length 20 [2023-11-25 00:06:53,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:53,307 INFO L495 AbstractCegarLoop]: Abstraction has 6611 states and 18805 transitions. [2023-11-25 00:06:53,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 20.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:53,310 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 18805 transitions. [2023-11-25 00:06:53,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-25 00:06:53,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:53,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:53,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:06:53,317 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-25 00:06:53,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:53,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1342998550, now seen corresponding path program 1 times [2023-11-25 00:06:53,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:53,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382242080] [2023-11-25 00:06:53,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:53,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:53,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:06:53,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:53,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382242080] [2023-11-25 00:06:53,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382242080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:53,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:53,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:06:53,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081710271] [2023-11-25 00:06:53,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:53,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:53,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:53,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:53,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:53,514 INFO L87 Difference]: Start difference. First operand 6611 states and 18805 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:53,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:53,803 INFO L93 Difference]: Finished difference Result 6775 states and 19256 transitions. [2023-11-25 00:06:53,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:06:53,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-11-25 00:06:53,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:53,879 INFO L225 Difference]: With dead ends: 6775 [2023-11-25 00:06:53,880 INFO L226 Difference]: Without dead ends: 6775 [2023-11-25 00:06:53,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:53,886 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 39 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:53,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 163 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:06:53,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6775 states. [2023-11-25 00:06:54,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6775 to 6635. [2023-11-25 00:06:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6635 states, 6603 states have (on average 2.856277449644101) internal successors, (18860), 6634 states have internal predecessors, (18860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:54,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6635 states to 6635 states and 18860 transitions. [2023-11-25 00:06:54,304 INFO L78 Accepts]: Start accepts. Automaton has 6635 states and 18860 transitions. Word has length 28 [2023-11-25 00:06:54,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:54,305 INFO L495 AbstractCegarLoop]: Abstraction has 6635 states and 18860 transitions. [2023-11-25 00:06:54,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:54,306 INFO L276 IsEmpty]: Start isEmpty. Operand 6635 states and 18860 transitions. [2023-11-25 00:06:54,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-25 00:06:54,315 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:54,315 INFO L195 NwaCegarLoop]: 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] [2023-11-25 00:06:54,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:06:54,317 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-25 00:06:54,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:54,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1649909540, now seen corresponding path program 1 times [2023-11-25 00:06:54,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:54,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159435387] [2023-11-25 00:06:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:54,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:54,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:06:54,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:54,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159435387] [2023-11-25 00:06:54,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159435387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:54,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:54,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:06:54,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632994857] [2023-11-25 00:06:54,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:54,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:54,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:54,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:54,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:54,421 INFO L87 Difference]: Start difference. First operand 6635 states and 18860 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:54,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:54,571 INFO L93 Difference]: Finished difference Result 7035 states and 19714 transitions. [2023-11-25 00:06:54,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:06:54,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-11-25 00:06:54,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:54,625 INFO L225 Difference]: With dead ends: 7035 [2023-11-25 00:06:54,625 INFO L226 Difference]: Without dead ends: 7015 [2023-11-25 00:06:54,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:54,627 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 68 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:54,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 166 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:06:54,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7015 states. [2023-11-25 00:06:54,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7015 to 6427. [2023-11-25 00:06:54,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6427 states, 6399 states have (on average 2.82153461478356) internal successors, (18055), 6426 states have internal predecessors, (18055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:54,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6427 states to 6427 states and 18055 transitions. [2023-11-25 00:06:54,938 INFO L78 Accepts]: Start accepts. Automaton has 6427 states and 18055 transitions. Word has length 31 [2023-11-25 00:06:54,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:54,939 INFO L495 AbstractCegarLoop]: Abstraction has 6427 states and 18055 transitions. [2023-11-25 00:06:54,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 6427 states and 18055 transitions. [2023-11-25 00:06:54,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-25 00:06:54,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:54,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:54,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:06:54,942 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-25 00:06:54,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:54,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1714881755, now seen corresponding path program 1 times [2023-11-25 00:06:54,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:54,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803741281] [2023-11-25 00:06:54,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:54,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:55,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:06:55,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:55,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803741281] [2023-11-25 00:06:55,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803741281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:55,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:55,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:06:55,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851385798] [2023-11-25 00:06:55,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:55,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-25 00:06:55,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:55,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-25 00:06:55,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:06:55,491 INFO L87 Difference]: Start difference. First operand 6427 states and 18055 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:55,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:55,727 INFO L93 Difference]: Finished difference Result 5818 states and 16250 transitions. [2023-11-25 00:06:55,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:06:55,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-11-25 00:06:55,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:55,748 INFO L225 Difference]: With dead ends: 5818 [2023-11-25 00:06:55,749 INFO L226 Difference]: Without dead ends: 5554 [2023-11-25 00:06:55,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:06:55,750 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 212 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:55,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 466 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:06:55,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5554 states. [2023-11-25 00:06:55,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5554 to 5554. [2023-11-25 00:06:55,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5554 states, 5540 states have (on average 2.7962093862815887) internal successors, (15491), 5553 states have internal predecessors, (15491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:56,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5554 states to 5554 states and 15491 transitions. [2023-11-25 00:06:56,016 INFO L78 Accepts]: Start accepts. Automaton has 5554 states and 15491 transitions. Word has length 32 [2023-11-25 00:06:56,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:56,017 INFO L495 AbstractCegarLoop]: Abstraction has 5554 states and 15491 transitions. [2023-11-25 00:06:56,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:56,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5554 states and 15491 transitions. [2023-11-25 00:06:56,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-25 00:06:56,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:56,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:56,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-25 00:06:56,022 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-25 00:06:56,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:56,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1404292934, now seen corresponding path program 1 times [2023-11-25 00:06:56,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:56,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004371773] [2023-11-25 00:06:56,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:56,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:56,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:06:56,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:56,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004371773] [2023-11-25 00:06:56,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004371773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:56,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:56,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:06:56,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068681503] [2023-11-25 00:06:56,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:56,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:56,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:56,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:56,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:56,094 INFO L87 Difference]: Start difference. First operand 5554 states and 15491 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:56,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:56,203 INFO L93 Difference]: Finished difference Result 5607 states and 15574 transitions. [2023-11-25 00:06:56,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:06:56,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-11-25 00:06:56,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:56,227 INFO L225 Difference]: With dead ends: 5607 [2023-11-25 00:06:56,227 INFO L226 Difference]: Without dead ends: 5253 [2023-11-25 00:06:56,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:56,231 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 41 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:56,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 161 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:06:56,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5253 states. [2023-11-25 00:06:56,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5253 to 5164. [2023-11-25 00:06:56,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5164 states, 5152 states have (on average 2.782802795031056) internal successors, (14337), 5163 states have internal predecessors, (14337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:56,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5164 states to 5164 states and 14337 transitions. [2023-11-25 00:06:56,497 INFO L78 Accepts]: Start accepts. Automaton has 5164 states and 14337 transitions. Word has length 34 [2023-11-25 00:06:56,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:56,499 INFO L495 AbstractCegarLoop]: Abstraction has 5164 states and 14337 transitions. [2023-11-25 00:06:56,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:56,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5164 states and 14337 transitions. [2023-11-25 00:06:56,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-25 00:06:56,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:56,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:56,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-25 00:06:56,507 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-25 00:06:56,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:56,508 INFO L85 PathProgramCache]: Analyzing trace with hash -634182934, now seen corresponding path program 1 times [2023-11-25 00:06:56,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:56,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19376924] [2023-11-25 00:06:56,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:56,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:56,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:06:56,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:56,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19376924] [2023-11-25 00:06:56,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19376924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:56,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:56,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-25 00:06:56,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700520689] [2023-11-25 00:06:56,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:56,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-25 00:06:56,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:56,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-25 00:06:56,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:06:56,689 INFO L87 Difference]: Start difference. First operand 5164 states and 14337 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:56,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:56,898 INFO L93 Difference]: Finished difference Result 6310 states and 17614 transitions. [2023-11-25 00:06:56,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-25 00:06:56,898 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2023-11-25 00:06:56,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:56,921 INFO L225 Difference]: With dead ends: 6310 [2023-11-25 00:06:56,921 INFO L226 Difference]: Without dead ends: 6310 [2023-11-25 00:06:56,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-25 00:06:56,923 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 190 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:56,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 643 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:06:56,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6310 states. [2023-11-25 00:06:57,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6310 to 6070. [2023-11-25 00:06:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6070 states, 6058 states have (on average 2.799603829646748) internal successors, (16960), 6069 states have internal predecessors, (16960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:57,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6070 states to 6070 states and 16960 transitions. [2023-11-25 00:06:57,091 INFO L78 Accepts]: Start accepts. Automaton has 6070 states and 16960 transitions. Word has length 43 [2023-11-25 00:06:57,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:57,092 INFO L495 AbstractCegarLoop]: Abstraction has 6070 states and 16960 transitions. [2023-11-25 00:06:57,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:57,092 INFO L276 IsEmpty]: Start isEmpty. Operand 6070 states and 16960 transitions. [2023-11-25 00:06:57,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-25 00:06:57,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:57,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:57,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-25 00:06:57,101 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-25 00:06:57,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:57,102 INFO L85 PathProgramCache]: Analyzing trace with hash 709092842, now seen corresponding path program 2 times [2023-11-25 00:06:57,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:57,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797460127] [2023-11-25 00:06:57,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:57,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:57,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:06:57,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:57,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797460127] [2023-11-25 00:06:57,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797460127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:57,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:57,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-25 00:06:57,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133358814] [2023-11-25 00:06:57,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:57,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-25 00:06:57,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:57,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-25 00:06:57,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:06:57,216 INFO L87 Difference]: Start difference. First operand 6070 states and 16960 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:57,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:57,453 INFO L93 Difference]: Finished difference Result 4162 states and 11446 transitions. [2023-11-25 00:06:57,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-25 00:06:57,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2023-11-25 00:06:57,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:57,474 INFO L225 Difference]: With dead ends: 4162 [2023-11-25 00:06:57,474 INFO L226 Difference]: Without dead ends: 3946 [2023-11-25 00:06:57,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-25 00:06:57,476 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 164 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:57,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 665 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:06:57,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2023-11-25 00:06:57,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3865. [2023-11-25 00:06:57,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3865 states, 3863 states have (on average 2.743204763137458) internal successors, (10597), 3864 states have internal predecessors, (10597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:57,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3865 states to 3865 states and 10597 transitions. [2023-11-25 00:06:57,673 INFO L78 Accepts]: Start accepts. Automaton has 3865 states and 10597 transitions. Word has length 43 [2023-11-25 00:06:57,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:57,673 INFO L495 AbstractCegarLoop]: Abstraction has 3865 states and 10597 transitions. [2023-11-25 00:06:57,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:57,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3865 states and 10597 transitions. [2023-11-25 00:06:57,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-25 00:06:57,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:57,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:57,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-25 00:06:57,686 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-25 00:06:57,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:57,686 INFO L85 PathProgramCache]: Analyzing trace with hash -686038476, now seen corresponding path program 1 times [2023-11-25 00:06:57,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:57,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807091060] [2023-11-25 00:06:57,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:57,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:06:58,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:58,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807091060] [2023-11-25 00:06:58,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807091060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:58,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:58,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:06:58,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439274141] [2023-11-25 00:06:58,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:58,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-25 00:06:58,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:58,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-25 00:06:58,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:06:58,183 INFO L87 Difference]: Start difference. First operand 3865 states and 10597 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:58,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:58,334 INFO L93 Difference]: Finished difference Result 3839 states and 10545 transitions. [2023-11-25 00:06:58,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:06:58,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-11-25 00:06:58,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:58,335 INFO L225 Difference]: With dead ends: 3839 [2023-11-25 00:06:58,335 INFO L226 Difference]: Without dead ends: 0 [2023-11-25 00:06:58,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:06:58,337 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 92 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:58,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 294 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:06:58,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-25 00:06:58,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-25 00:06:58,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:58,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-25 00:06:58,339 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2023-11-25 00:06:58,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:58,339 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-25 00:06:58,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:06:58,340 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-25 00:06:58,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-25 00:06:58,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2023-11-25 00:06:58,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2023-11-25 00:06:58,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2023-11-25 00:06:58,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2023-11-25 00:06:58,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2023-11-25 00:06:58,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2023-11-25 00:06:58,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2023-11-25 00:06:58,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2023-11-25 00:06:58,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2023-11-25 00:06:58,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2023-11-25 00:06:58,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2023-11-25 00:06:58,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2023-11-25 00:06:58,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2023-11-25 00:06:58,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2023-11-25 00:06:58,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2023-11-25 00:06:58,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2023-11-25 00:06:58,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2023-11-25 00:06:58,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2023-11-25 00:06:58,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2023-11-25 00:06:58,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2023-11-25 00:06:58,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2023-11-25 00:06:58,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 40 remaining) [2023-11-25 00:06:58,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2023-11-25 00:06:58,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2023-11-25 00:06:58,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2023-11-25 00:06:58,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2023-11-25 00:06:58,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2023-11-25 00:06:58,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2023-11-25 00:06:58,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2023-11-25 00:06:58,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2023-11-25 00:06:58,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2023-11-25 00:06:58,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2023-11-25 00:06:58,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2023-11-25 00:06:58,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2023-11-25 00:06:58,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2023-11-25 00:06:58,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2023-11-25 00:06:58,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2023-11-25 00:06:58,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2023-11-25 00:06:58,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2023-11-25 00:06:58,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2023-11-25 00:06:58,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-25 00:06:58,380 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:58,386 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-25 00:06:58,386 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:06:58,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:06:58 BasicIcfg [2023-11-25 00:06:58,389 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:06:58,390 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:06:58,390 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:06:58,390 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:06:58,391 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:51" (3/4) ... [2023-11-25 00:06:58,393 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-25 00:06:58,397 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2023-11-25 00:06:58,397 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2023-11-25 00:06:58,401 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-25 00:06:58,402 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-25 00:06:58,402 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-25 00:06:58,402 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-25 00:06:58,489 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-25 00:06:58,490 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-25 00:06:58,490 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:06:58,491 INFO L158 Benchmark]: Toolchain (without parser) took 8825.06ms. Allocated memory was 123.7MB in the beginning and 492.8MB in the end (delta: 369.1MB). Free memory was 78.2MB in the beginning and 319.1MB in the end (delta: -240.9MB). Peak memory consumption was 129.4MB. Max. memory is 16.1GB. [2023-11-25 00:06:58,491 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:06:58,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 611.05ms. Allocated memory is still 123.7MB. Free memory was 77.9MB in the beginning and 57.7MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-25 00:06:58,492 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.05ms. Allocated memory is still 123.7MB. Free memory was 57.7MB in the beginning and 94.3MB in the end (delta: -36.6MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2023-11-25 00:06:58,493 INFO L158 Benchmark]: Boogie Preprocessor took 60.10ms. Allocated memory was 123.7MB in the beginning and 176.2MB in the end (delta: 52.4MB). Free memory was 94.3MB in the beginning and 147.7MB in the end (delta: -53.4MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-11-25 00:06:58,493 INFO L158 Benchmark]: RCFGBuilder took 677.35ms. Allocated memory is still 176.2MB. Free memory was 147.7MB in the beginning and 125.8MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-25 00:06:58,494 INFO L158 Benchmark]: TraceAbstraction took 7289.91ms. Allocated memory was 176.2MB in the beginning and 492.8MB in the end (delta: 316.7MB). Free memory was 124.6MB in the beginning and 323.3MB in the end (delta: -198.6MB). Peak memory consumption was 301.5MB. Max. memory is 16.1GB. [2023-11-25 00:06:58,494 INFO L158 Benchmark]: Witness Printer took 100.42ms. Allocated memory is still 492.8MB. Free memory was 323.3MB in the beginning and 319.1MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:06:58,497 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 611.05ms. Allocated memory is still 123.7MB. Free memory was 77.9MB in the beginning and 57.7MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.05ms. Allocated memory is still 123.7MB. Free memory was 57.7MB in the beginning and 94.3MB in the end (delta: -36.6MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.10ms. Allocated memory was 123.7MB in the beginning and 176.2MB in the end (delta: 52.4MB). Free memory was 94.3MB in the beginning and 147.7MB in the end (delta: -53.4MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * RCFGBuilder took 677.35ms. Allocated memory is still 176.2MB. Free memory was 147.7MB in the beginning and 125.8MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7289.91ms. Allocated memory was 176.2MB in the beginning and 492.8MB in the end (delta: 316.7MB). Free memory was 124.6MB in the beginning and 323.3MB in the end (delta: -198.6MB). Peak memory consumption was 301.5MB. Max. memory is 16.1GB. * Witness Printer took 100.42ms. Allocated memory is still 492.8MB. Free memory was 323.3MB in the beginning and 319.1MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 739]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 191 locations, 40 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 806 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 806 mSDsluCounter, 2633 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1560 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 893 IncrementalHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 1073 mSDtfsCounter, 893 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12085occurred in iteration=0, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 1138 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 542 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-25 00:06:58,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c81e6b68-5631-4faf-9c3f-ae7e2d3079de/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE