./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c --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_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh --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 41874b69ed787f1d4b0fd199a95bb437bfc8aab0f734c194621d2ef33cc65cc9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:42:15,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:42:15,261 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 13:42:15,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:42:15,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:42:15,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:42:15,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:42:15,292 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:42:15,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:42:15,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:42:15,294 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:42:15,295 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:42:15,295 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:42:15,296 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:42:15,296 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:42:15,297 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:42:15,297 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:42:15,298 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:42:15,298 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:42:15,299 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:42:15,299 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:42:15,300 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:42:15,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:42:15,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:42:15,302 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:42:15,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:42:15,303 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:42:15,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:42:15,304 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:42:15,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:42:15,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:42:15,305 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 13:42:15,305 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 13:42:15,305 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:42:15,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:42:15,306 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:42:15,306 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:42:15,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:42:15,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:42:15,307 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:42:15,307 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:42:15,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:42:15,308 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:42:15,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:42:15,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:42:15,308 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:42:15,308 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:42:15,309 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:42:15,309 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_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41874b69ed787f1d4b0fd199a95bb437bfc8aab0f734c194621d2ef33cc65cc9 [2023-12-02 13:42:15,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:42:15,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:42:15,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:42:15,551 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:42:15,551 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:42:15,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2023-12-02 13:42:18,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:42:18,463 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:42:18,464 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2023-12-02 13:42:18,473 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh/data/cf0a04bae/bfa6e310ebf840339a4ef125323ef7dd/FLAG22a60832c [2023-12-02 13:42:18,489 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh/data/cf0a04bae/bfa6e310ebf840339a4ef125323ef7dd [2023-12-02 13:42:18,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:42:18,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:42:18,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:42:18,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:42:18,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:42:18,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:42:18" (1/1) ... [2023-12-02 13:42:18,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c808ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18, skipping insertion in model container [2023-12-02 13:42:18,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:42:18" (1/1) ... [2023-12-02 13:42:18,532 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:42:18,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:42:18,755 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:42:18,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:42:18,804 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:42:18,805 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:42:18,813 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:42:18,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18 WrapperNode [2023-12-02 13:42:18,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:42:18,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:42:18,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:42:18,815 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:42:18,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18" (1/1) ... [2023-12-02 13:42:18,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18" (1/1) ... [2023-12-02 13:42:18,872 INFO L138 Inliner]: procedures = 26, calls = 74, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 509 [2023-12-02 13:42:18,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:42:18,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:42:18,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:42:18,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:42:18,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18" (1/1) ... [2023-12-02 13:42:18,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18" (1/1) ... [2023-12-02 13:42:18,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18" (1/1) ... [2023-12-02 13:42:18,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18" (1/1) ... [2023-12-02 13:42:18,911 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18" (1/1) ... [2023-12-02 13:42:18,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18" (1/1) ... [2023-12-02 13:42:18,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18" (1/1) ... [2023-12-02 13:42:18,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18" (1/1) ... [2023-12-02 13:42:18,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:42:18,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:42:18,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:42:18,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:42:18,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18" (1/1) ... [2023-12-02 13:42:18,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:42:18,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:42:18,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:42:18,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14144cf9-ca75-424c-a677-2f6a57c03a57/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:42:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:42:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 13:42:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 13:42:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 13:42:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-02 13:42:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-02 13:42:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-02 13:42:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-02 13:42:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-02 13:42:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-02 13:42:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-12-02 13:42:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-12-02 13:42:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:42:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 13:42:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 13:42:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 13:42:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:42:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:42:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 13:42:18,997 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 13:42:19,130 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:42:19,133 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:42:19,743 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:42:20,092 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:42:20,092 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-02 13:42:20,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:42:20 BoogieIcfgContainer [2023-12-02 13:42:20,094 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:42:20,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:42:20,096 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:42:20,099 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:42:20,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:42:18" (1/3) ... [2023-12-02 13:42:20,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4387d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:42:20, skipping insertion in model container [2023-12-02 13:42:20,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:18" (2/3) ... [2023-12-02 13:42:20,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4387d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:42:20, skipping insertion in model container [2023-12-02 13:42:20,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:42:20" (3/3) ... [2023-12-02 13:42:20,101 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons3.wvr.c [2023-12-02 13:42:20,109 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 13:42:20,116 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:42:20,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2023-12-02 13:42:20,117 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 13:42:20,229 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-12-02 13:42:20,261 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 408 places, 413 transitions, 854 flow [2023-12-02 13:43:12,036 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1766951 states, 1735129 states have (on average 4.9239947001058715) internal successors, (8543766), 1766950 states have internal predecessors, (8543766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:12,070 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:43:12,076 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;@18da4a0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:43:12,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 125 error locations. [2023-12-02 13:43:21,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 1766951 states, 1735129 states have (on average 4.9239947001058715) internal successors, (8543766), 1766950 states have internal predecessors, (8543766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:21,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 13:43:21,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:43:21,619 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] [2023-12-02 13:43:21,620 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2023-12-02 13:43:21,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:43:21,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1252794070, now seen corresponding path program 1 times [2023-12-02 13:43:21,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:43:21,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565457915] [2023-12-02 13:43:21,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:43:21,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:43:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:43:21,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:43:21,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:43:21,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565457915] [2023-12-02 13:43:21,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565457915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:43:21,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:43:21,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:43:21,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929870006] [2023-12-02 13:43:21,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:43:21,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:43:21,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:43:21,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:43:21,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:43:25,079 INFO L87 Difference]: Start difference. First operand has 1766951 states, 1735129 states have (on average 4.9239947001058715) internal successors, (8543766), 1766950 states have internal predecessors, (8543766), 0 states have call successors, (0), 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 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:28,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:43:28,361 INFO L93 Difference]: Finished difference Result 105383 states and 485811 transitions. [2023-12-02 13:43:28,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:43:28,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2023-12-02 13:43:28,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:43:29,529 INFO L225 Difference]: With dead ends: 105383 [2023-12-02 13:43:29,529 INFO L226 Difference]: Without dead ends: 105377 [2023-12-02 13:43:29,531 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 [2023-12-02 13:43:29,534 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 2 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:43:29,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 592 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:43:29,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105377 states. [2023-12-02 13:43:33,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105377 to 105377. [2023-12-02 13:43:33,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105377 states, 105353 states have (on average 4.611211830702495) internal successors, (485805), 105376 states have internal predecessors, (485805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:34,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105377 states to 105377 states and 485805 transitions. [2023-12-02 13:43:34,305 INFO L78 Accepts]: Start accepts. Automaton has 105377 states and 485805 transitions. Word has length 30 [2023-12-02 13:43:34,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:43:34,305 INFO L495 AbstractCegarLoop]: Abstraction has 105377 states and 485805 transitions. [2023-12-02 13:43:34,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:34,306 INFO L276 IsEmpty]: Start isEmpty. Operand 105377 states and 485805 transitions. [2023-12-02 13:43:34,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 13:43:34,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:43:34,307 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] [2023-12-02 13:43:34,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:43:34,308 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2023-12-02 13:43:34,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:43:34,309 INFO L85 PathProgramCache]: Analyzing trace with hash 990706881, now seen corresponding path program 1 times [2023-12-02 13:43:34,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:43:34,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649669439] [2023-12-02 13:43:34,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:43:34,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:43:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:43:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:43:34,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:43:34,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649669439] [2023-12-02 13:43:34,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649669439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:43:34,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:43:34,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:43:34,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135308328] [2023-12-02 13:43:34,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:43:34,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:43:34,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:43:34,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:43:34,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:43:34,380 INFO L87 Difference]: Start difference. First operand 105377 states and 485805 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) [2023-12-02 13:43:36,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:43:36,228 INFO L93 Difference]: Finished difference Result 99143 states and 457103 transitions. [2023-12-02 13:43:36,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:43:36,229 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 [2023-12-02 13:43:36,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:43:36,817 INFO L225 Difference]: With dead ends: 99143 [2023-12-02 13:43:36,817 INFO L226 Difference]: Without dead ends: 99143 [2023-12-02 13:43:36,817 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 [2023-12-02 13:43:36,819 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 279 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:43:36,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 322 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:43:37,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99143 states. [2023-12-02 13:43:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99143 to 99143. [2023-12-02 13:43:39,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99143 states, 99123 states have (on average 4.611472614832078) internal successors, (457103), 99142 states have internal predecessors, (457103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:40,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99143 states to 99143 states and 457103 transitions. [2023-12-02 13:43:40,963 INFO L78 Accepts]: Start accepts. Automaton has 99143 states and 457103 transitions. Word has length 34 [2023-12-02 13:43:40,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:43:40,964 INFO L495 AbstractCegarLoop]: Abstraction has 99143 states and 457103 transitions. [2023-12-02 13:43:40,964 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) [2023-12-02 13:43:40,964 INFO L276 IsEmpty]: Start isEmpty. Operand 99143 states and 457103 transitions. [2023-12-02 13:43:40,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 13:43:40,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:43:40,966 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] [2023-12-02 13:43:40,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:43:40,967 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2023-12-02 13:43:40,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:43:40,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1756356856, now seen corresponding path program 1 times [2023-12-02 13:43:40,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:43:40,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996265594] [2023-12-02 13:43:40,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:43:40,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:43:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:43:41,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:43:41,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:43:41,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996265594] [2023-12-02 13:43:41,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996265594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:43:41,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:43:41,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:43:41,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530581231] [2023-12-02 13:43:41,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:43:41,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:43:41,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:43:41,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:43:41,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:43:41,035 INFO L87 Difference]: Start difference. First operand 99143 states and 457103 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:41,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:43:41,903 INFO L93 Difference]: Finished difference Result 99142 states and 457102 transitions. [2023-12-02 13:43:41,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:43:41,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2023-12-02 13:43:41,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:43:43,340 INFO L225 Difference]: With dead ends: 99142 [2023-12-02 13:43:43,340 INFO L226 Difference]: Without dead ends: 99142 [2023-12-02 13:43:43,340 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 [2023-12-02 13:43:43,342 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 2 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:43:43,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 578 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:43:43,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99142 states. [2023-12-02 13:43:46,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99142 to 99142. [2023-12-02 13:43:46,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99142 states, 99123 states have (on average 4.611462526356143) internal successors, (457102), 99141 states have internal predecessors, (457102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:47,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99142 states to 99142 states and 457102 transitions. [2023-12-02 13:43:47,391 INFO L78 Accepts]: Start accepts. Automaton has 99142 states and 457102 transitions. Word has length 46 [2023-12-02 13:43:47,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:43:47,392 INFO L495 AbstractCegarLoop]: Abstraction has 99142 states and 457102 transitions. [2023-12-02 13:43:47,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:47,392 INFO L276 IsEmpty]: Start isEmpty. Operand 99142 states and 457102 transitions. [2023-12-02 13:43:47,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 13:43:47,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:43:47,394 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] [2023-12-02 13:43:47,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:43:47,394 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2023-12-02 13:43:47,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:43:47,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1955827258, now seen corresponding path program 1 times [2023-12-02 13:43:47,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:43:47,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075085305] [2023-12-02 13:43:47,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:43:47,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:43:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:43:47,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:43:47,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:43:47,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075085305] [2023-12-02 13:43:47,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075085305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:43:47,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:43:47,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:43:47,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780167139] [2023-12-02 13:43:47,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:43:47,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:43:47,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:43:47,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:43:47,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:43:47,479 INFO L87 Difference]: Start difference. First operand 99142 states and 457102 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:48,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:43:48,746 INFO L93 Difference]: Finished difference Result 99141 states and 457101 transitions. [2023-12-02 13:43:48,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:43:48,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-02 13:43:48,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:43:49,329 INFO L225 Difference]: With dead ends: 99141 [2023-12-02 13:43:49,329 INFO L226 Difference]: Without dead ends: 99141 [2023-12-02 13:43:49,329 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 [2023-12-02 13:43:49,331 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 2 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:43:49,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 576 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:43:49,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99141 states. [2023-12-02 13:43:52,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99141 to 99141. [2023-12-02 13:43:52,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99141 states, 99123 states have (on average 4.611452437880209) internal successors, (457101), 99140 states have internal predecessors, (457101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:53,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99141 states to 99141 states and 457101 transitions. [2023-12-02 13:43:53,029 INFO L78 Accepts]: Start accepts. Automaton has 99141 states and 457101 transitions. Word has length 54 [2023-12-02 13:43:53,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:43:53,030 INFO L495 AbstractCegarLoop]: Abstraction has 99141 states and 457101 transitions. [2023-12-02 13:43:53,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:53,031 INFO L276 IsEmpty]: Start isEmpty. Operand 99141 states and 457101 transitions. [2023-12-02 13:43:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 13:43:53,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:43:53,032 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, 1, 1, 1, 1, 1] [2023-12-02 13:43:53,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 13:43:53,033 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2023-12-02 13:43:53,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:43:53,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1558671499, now seen corresponding path program 1 times [2023-12-02 13:43:53,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:43:53,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852571157] [2023-12-02 13:43:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:43:53,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:43:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:43:53,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:43:53,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:43:53,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852571157] [2023-12-02 13:43:53,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852571157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:43:53,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:43:53,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:43:53,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123518007] [2023-12-02 13:43:53,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:43:53,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:43:53,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:43:53,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:43:53,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:43:53,095 INFO L87 Difference]: Start difference. First operand 99141 states and 457101 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:54,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:43:54,471 INFO L93 Difference]: Finished difference Result 99140 states and 457100 transitions. [2023-12-02 13:43:54,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:43:54,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2023-12-02 13:43:54,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:43:55,464 INFO L225 Difference]: With dead ends: 99140 [2023-12-02 13:43:55,466 INFO L226 Difference]: Without dead ends: 99140 [2023-12-02 13:43:55,466 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 [2023-12-02 13:43:55,473 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 2 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:43:55,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 574 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:43:55,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99140 states. [2023-12-02 13:43:58,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99140 to 99140. [2023-12-02 13:43:58,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99140 states, 99123 states have (on average 4.6114423494042756) internal successors, (457100), 99139 states have internal predecessors, (457100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:59,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99140 states to 99140 states and 457100 transitions. [2023-12-02 13:43:59,418 INFO L78 Accepts]: Start accepts. Automaton has 99140 states and 457100 transitions. Word has length 62 [2023-12-02 13:43:59,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:43:59,419 INFO L495 AbstractCegarLoop]: Abstraction has 99140 states and 457100 transitions. [2023-12-02 13:43:59,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:43:59,419 INFO L276 IsEmpty]: Start isEmpty. Operand 99140 states and 457100 transitions. [2023-12-02 13:43:59,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 13:43:59,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:43:59,420 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:43:59,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:43:59,421 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2023-12-02 13:43:59,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:43:59,421 INFO L85 PathProgramCache]: Analyzing trace with hash -123395227, now seen corresponding path program 1 times [2023-12-02 13:43:59,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:43:59,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902186020] [2023-12-02 13:43:59,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:43:59,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:43:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:43:59,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:43:59,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:43:59,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902186020] [2023-12-02 13:43:59,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902186020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:43:59,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:43:59,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:43:59,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195619356] [2023-12-02 13:43:59,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:43:59,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:43:59,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:43:59,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:43:59,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:43:59,480 INFO L87 Difference]: Start difference. First operand 99140 states and 457100 transitions. Second operand has 3 states, 2 states have (on average 35.0) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)