./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_20-arrayloop2_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_20-arrayloop2_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire --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 8ffb6ed4cf93a465c15dff37fbdc82f2f1bfe68c16d8d908373acd9cd0f46e43 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:39,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:39,720 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-23 21:16:39,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:39,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:39,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:39,787 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:39,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:39,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:39,796 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:39,797 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:39,798 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:39,799 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:39,801 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:39,802 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:39,802 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:39,803 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:39,803 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:39,804 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:39,805 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:39,806 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:39,806 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:39,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:39,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:39,811 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:16:39,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:39,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:16:39,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:39,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:39,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:39,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:39,816 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 21:16:39,816 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:16:39,817 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:16:39,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:39,817 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:39,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:39,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:39,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:39,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:39,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:39,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:39,820 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:39,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:39,821 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:39,822 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:39,822 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:39,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:39,822 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_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ffb6ed4cf93a465c15dff37fbdc82f2f1bfe68c16d8d908373acd9cd0f46e43 [2023-11-23 21:16:40,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:40,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:40,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:40,239 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:40,239 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:40,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/goblint-regression/09-regions_20-arrayloop2_rc.i [2023-11-23 21:16:43,723 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:44,052 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:44,053 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/sv-benchmarks/c/goblint-regression/09-regions_20-arrayloop2_rc.i [2023-11-23 21:16:44,087 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/data/1e53b8c72/6499e694e5494b01b3bc9435f102b87a/FLAGbc53b6f4a [2023-11-23 21:16:44,101 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/data/1e53b8c72/6499e694e5494b01b3bc9435f102b87a [2023-11-23 21:16:44,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:44,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:44,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:44,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:44,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:44,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:44" (1/1) ... [2023-11-23 21:16:44,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14657b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44, skipping insertion in model container [2023-11-23 21:16:44,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:44" (1/1) ... [2023-11-23 21:16:44,189 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:44,722 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 21:16:44,723 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 21:16:44,724 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 21:16:44,726 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 21:16:44,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:44,778 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:44,850 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 21:16:44,860 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 21:16:44,862 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 21:16:44,867 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 21:16:44,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:44,971 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:44,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44 WrapperNode [2023-11-23 21:16:44,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:44,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:44,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:44,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:44,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44" (1/1) ... [2023-11-23 21:16:45,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44" (1/1) ... [2023-11-23 21:16:45,055 INFO L138 Inliner]: procedures = 273, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 278 [2023-11-23 21:16:45,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:45,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:45,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:45,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:45,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44" (1/1) ... [2023-11-23 21:16:45,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44" (1/1) ... [2023-11-23 21:16:45,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44" (1/1) ... [2023-11-23 21:16:45,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44" (1/1) ... [2023-11-23 21:16:45,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44" (1/1) ... [2023-11-23 21:16:45,159 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44" (1/1) ... [2023-11-23 21:16:45,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44" (1/1) ... [2023-11-23 21:16:45,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44" (1/1) ... [2023-11-23 21:16:45,174 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:45,177 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:45,182 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:45,182 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:45,183 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44" (1/1) ... [2023-11-23 21:16:45,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:45,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:45,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:45,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-23 21:16:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-23 21:16:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure g [2023-11-23 21:16:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2023-11-23 21:16:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:16:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:16:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:16:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 21:16:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:16:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:16:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 21:16:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:16:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:16:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:45,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:45,281 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:16:45,496 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:45,499 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:46,276 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:46,316 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:46,318 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 21:16:46,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:46 BoogieIcfgContainer [2023-11-23 21:16:46,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:46,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:46,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:46,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:46,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:44" (1/3) ... [2023-11-23 21:16:46,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b7bd200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:46, skipping insertion in model container [2023-11-23 21:16:46,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:44" (2/3) ... [2023-11-23 21:16:46,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b7bd200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:46, skipping insertion in model container [2023-11-23 21:16:46,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:46" (3/3) ... [2023-11-23 21:16:46,332 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_20-arrayloop2_rc.i [2023-11-23 21:16:46,344 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:16:46,355 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:46,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-23 21:16:46,357 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:16:46,471 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 21:16:46,523 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 300 places, 307 transitions, 622 flow [2023-11-23 21:16:48,602 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 48358 states, 48324 states have (on average 3.0173619733465773) internal successors, (145811), 48357 states have internal predecessors, (145811), 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) [2023-11-23 21:16:48,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:48,738 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;@383ab8b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:48,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-23 21:16:48,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 48358 states, 48324 states have (on average 3.0173619733465773) internal successors, (145811), 48357 states have internal predecessors, (145811), 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) [2023-11-23 21:16:48,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 21:16:48,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:48,894 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] [2023-11-23 21:16:48,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 21:16:48,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:48,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1661613886, now seen corresponding path program 1 times [2023-11-23 21:16:48,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:48,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832627085] [2023-11-23 21:16:48,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:48,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:49,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:16:49,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:49,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832627085] [2023-11-23 21:16:49,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832627085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:49,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:49,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:16:49,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971981706] [2023-11-23 21:16:49,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:49,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:16:49,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:50,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:16:50,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:16:50,111 INFO L87 Difference]: Start difference. First operand has 48358 states, 48324 states have (on average 3.0173619733465773) internal successors, (145811), 48357 states have internal predecessors, (145811), 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 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2023-11-23 21:16:51,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:51,346 INFO L93 Difference]: Finished difference Result 48356 states and 141499 transitions. [2023-11-23 21:16:51,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:16:51,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2023-11-23 21:16:51,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:51,794 INFO L225 Difference]: With dead ends: 48356 [2023-11-23 21:16:51,794 INFO L226 Difference]: Without dead ends: 48279 [2023-11-23 21:16:51,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:16:51,801 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 2 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:51,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 619 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:16:51,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48279 states. [2023-11-23 21:16:53,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48279 to 48279. [2023-11-23 21:16:53,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48279 states, 48239 states have (on average 2.9286469454176083) internal successors, (141275), 48278 states have internal predecessors, (141275), 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) [2023-11-23 21:16:54,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48279 states to 48279 states and 141275 transitions. [2023-11-23 21:16:54,449 INFO L78 Accepts]: Start accepts. Automaton has 48279 states and 141275 transitions. Word has length 22 [2023-11-23 21:16:54,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:54,450 INFO L495 AbstractCegarLoop]: Abstraction has 48279 states and 141275 transitions. [2023-11-23 21:16:54,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2023-11-23 21:16:54,451 INFO L276 IsEmpty]: Start isEmpty. Operand 48279 states and 141275 transitions. [2023-11-23 21:16:54,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 21:16:54,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:54,455 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] [2023-11-23 21:16:54,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:16:54,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 21:16:54,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:54,458 INFO L85 PathProgramCache]: Analyzing trace with hash 739774297, now seen corresponding path program 1 times [2023-11-23 21:16:54,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:54,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589650173] [2023-11-23 21:16:54,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:54,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:55,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:16:55,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:55,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589650173] [2023-11-23 21:16:55,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589650173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:55,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:55,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:16:55,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154485475] [2023-11-23 21:16:55,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:55,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:16:55,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:55,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:16:55,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:16:55,035 INFO L87 Difference]: Start difference. First operand 48279 states and 141275 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 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) [2023-11-23 21:16:56,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:56,600 INFO L93 Difference]: Finished difference Result 48277 states and 141273 transitions. [2023-11-23 21:16:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:16:56,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 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 [2023-11-23 21:16:56,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:57,062 INFO L225 Difference]: With dead ends: 48277 [2023-11-23 21:16:57,063 INFO L226 Difference]: Without dead ends: 48277 [2023-11-23 21:16:57,064 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 [2023-11-23 21:16:57,067 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 4 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:57,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 786 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:16:57,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48277 states. [2023-11-23 21:16:58,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48277 to 48277. [2023-11-23 21:16:58,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48277 states, 48239 states have (on average 2.928605485188333) internal successors, (141273), 48276 states have internal predecessors, (141273), 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) [2023-11-23 21:16:59,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48277 states to 48277 states and 141273 transitions. [2023-11-23 21:16:59,028 INFO L78 Accepts]: Start accepts. Automaton has 48277 states and 141273 transitions. Word has length 30 [2023-11-23 21:16:59,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:59,029 INFO L495 AbstractCegarLoop]: Abstraction has 48277 states and 141273 transitions. [2023-11-23 21:16:59,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 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) [2023-11-23 21:16:59,030 INFO L276 IsEmpty]: Start isEmpty. Operand 48277 states and 141273 transitions. [2023-11-23 21:16:59,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 21:16:59,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:59,043 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] [2023-11-23 21:16:59,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:16:59,043 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 21:16:59,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:59,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1238617469, now seen corresponding path program 1 times [2023-11-23 21:16:59,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:59,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143945418] [2023-11-23 21:16:59,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:59,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:59,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:16:59,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:59,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143945418] [2023-11-23 21:16:59,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143945418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:59,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:59,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:59,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455270830] [2023-11-23 21:16:59,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:59,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:59,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:59,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:59,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:59,149 INFO L87 Difference]: Start difference. First operand 48277 states and 141273 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2023-11-23 21:16:59,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:59,755 INFO L93 Difference]: Finished difference Result 48401 states and 141398 transitions. [2023-11-23 21:16:59,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:59,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2023-11-23 21:16:59,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:59,930 INFO L225 Difference]: With dead ends: 48401 [2023-11-23 21:16:59,931 INFO L226 Difference]: Without dead ends: 48401 [2023-11-23 21:16:59,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:59,935 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 124 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:59,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 556 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:17:00,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48401 states. [2023-11-23 21:17:01,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48401 to 48278. [2023-11-23 21:17:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48278 states, 48240 states have (on average 2.9285655058043116) internal successors, (141274), 48277 states have internal predecessors, (141274), 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) [2023-11-23 21:17:01,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48278 states to 48278 states and 141274 transitions. [2023-11-23 21:17:01,911 INFO L78 Accepts]: Start accepts. Automaton has 48278 states and 141274 transitions. Word has length 40 [2023-11-23 21:17:01,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:01,912 INFO L495 AbstractCegarLoop]: Abstraction has 48278 states and 141274 transitions. [2023-11-23 21:17:01,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2023-11-23 21:17:01,913 INFO L276 IsEmpty]: Start isEmpty. Operand 48278 states and 141274 transitions. [2023-11-23 21:17:01,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-23 21:17:01,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:01,915 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] [2023-11-23 21:17:01,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:17:01,915 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 21:17:01,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:01,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1614987599, now seen corresponding path program 1 times [2023-11-23 21:17:01,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:01,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621206497] [2023-11-23 21:17:01,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:01,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:01,947 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:17:01,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [148463822] [2023-11-23 21:17:01,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:01,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:01,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:01,952 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:17:01,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:17:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:02,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:17:02,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:02,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 21:17:02,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-23 21:17:02,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:17:02,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-23 21:17:02,298 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:17:02,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-23 21:17:02,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:02,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:17:02,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:02,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621206497] [2023-11-23 21:17:02,331 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:17:02,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148463822] [2023-11-23 21:17:02,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148463822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:02,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:02,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:17:02,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154105324] [2023-11-23 21:17:02,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:02,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:17:02,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:02,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:17:02,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:17:02,334 INFO L87 Difference]: Start difference. First operand 48278 states and 141274 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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) [2023-11-23 21:17:03,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:03,328 INFO L93 Difference]: Finished difference Result 48277 states and 141273 transitions. [2023-11-23 21:17:03,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:17:03,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2023-11-23 21:17:03,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:03,500 INFO L225 Difference]: With dead ends: 48277 [2023-11-23 21:17:03,500 INFO L226 Difference]: Without dead ends: 48277 [2023-11-23 21:17:03,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:17:03,505 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 1 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:03,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 807 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:17:03,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48277 states. [2023-11-23 21:17:04,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48277 to 48277. [2023-11-23 21:17:04,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48277 states, 48240 states have (on average 2.928544776119403) internal successors, (141273), 48276 states have internal predecessors, (141273), 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) [2023-11-23 21:17:04,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48277 states to 48277 states and 141273 transitions. [2023-11-23 21:17:04,826 INFO L78 Accepts]: Start accepts. Automaton has 48277 states and 141273 transitions. Word has length 50 [2023-11-23 21:17:04,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:04,827 INFO L495 AbstractCegarLoop]: Abstraction has 48277 states and 141273 transitions. [2023-11-23 21:17:04,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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) [2023-11-23 21:17:04,827 INFO L276 IsEmpty]: Start isEmpty. Operand 48277 states and 141273 transitions. [2023-11-23 21:17:04,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 21:17:04,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:04,834 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] [2023-11-23 21:17:04,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:17:05,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:05,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 21:17:05,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:05,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2123244868, now seen corresponding path program 1 times [2023-11-23 21:17:05,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:05,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154344738] [2023-11-23 21:17:05,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:05,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:05,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:05,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:05,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154344738] [2023-11-23 21:17:05,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154344738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:05,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:05,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:17:05,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808523853] [2023-11-23 21:17:05,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:05,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:05,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:05,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:05,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:05,163 INFO L87 Difference]: Start difference. First operand 48277 states and 141273 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2023-11-23 21:17:05,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:05,791 INFO L93 Difference]: Finished difference Result 48372 states and 141368 transitions. [2023-11-23 21:17:05,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:17:05,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2023-11-23 21:17:05,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:05,932 INFO L225 Difference]: With dead ends: 48372 [2023-11-23 21:17:05,932 INFO L226 Difference]: Without dead ends: 48372 [2023-11-23 21:17:05,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:05,933 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 94 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:05,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 560 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:17:06,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48372 states. [2023-11-23 21:17:07,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48372 to 48278. [2023-11-23 21:17:07,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48278 states, 48241 states have (on average 2.9285047988225785) internal successors, (141274), 48277 states have internal predecessors, (141274), 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) [2023-11-23 21:17:07,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48278 states to 48278 states and 141274 transitions. [2023-11-23 21:17:07,516 INFO L78 Accepts]: Start accepts. Automaton has 48278 states and 141274 transitions. Word has length 69 [2023-11-23 21:17:07,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:07,517 INFO L495 AbstractCegarLoop]: Abstraction has 48278 states and 141274 transitions. [2023-11-23 21:17:07,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2023-11-23 21:17:07,517 INFO L276 IsEmpty]: Start isEmpty. Operand 48278 states and 141274 transitions. [2023-11-23 21:17:07,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 21:17:07,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:07,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:07,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:17:07,519 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 21:17:07,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:07,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1725631367, now seen corresponding path program 1 times [2023-11-23 21:17:07,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:07,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360560843] [2023-11-23 21:17:07,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:07,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:07,555 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:17:07,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426022150] [2023-11-23 21:17:07,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:07,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:07,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:07,557 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:17:07,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:17:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:07,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:17:07,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:07,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 21:17:07,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-23 21:17:07,821 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:17:07,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-23 21:17:07,857 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:17:07,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-23 21:17:07,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:07,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:17:07,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:07,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360560843] [2023-11-23 21:17:07,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:17:07,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426022150] [2023-11-23 21:17:07,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426022150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:07,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:07,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:17:07,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869106407] [2023-11-23 21:17:07,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:07,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:17:07,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:07,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:17:07,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:17:07,888 INFO L87 Difference]: Start difference. First operand 48278 states and 141274 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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) [2023-11-23 21:17:08,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:08,408 INFO L93 Difference]: Finished difference Result 48277 states and 141273 transitions. [2023-11-23 21:17:08,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:17:08,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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 86 [2023-11-23 21:17:08,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:08,538 INFO L225 Difference]: With dead ends: 48277 [2023-11-23 21:17:08,538 INFO L226 Difference]: Without dead ends: 48277 [2023-11-23 21:17:08,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:17:08,539 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 10 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:08,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 799 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:17:09,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48277 states. [2023-11-23 21:17:09,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48277 to 48277. [2023-11-23 21:17:09,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48277 states, 48241 states have (on average 2.9284840695673804) internal successors, (141273), 48276 states have internal predecessors, (141273), 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) [2023-11-23 21:17:10,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48277 states to 48277 states and 141273 transitions. [2023-11-23 21:17:10,516 INFO L78 Accepts]: Start accepts. Automaton has 48277 states and 141273 transitions. Word has length 86 [2023-11-23 21:17:10,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:10,516 INFO L495 AbstractCegarLoop]: Abstraction has 48277 states and 141273 transitions. [2023-11-23 21:17:10,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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) [2023-11-23 21:17:10,517 INFO L276 IsEmpty]: Start isEmpty. Operand 48277 states and 141273 transitions. [2023-11-23 21:17:10,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-23 21:17:10,517 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:10,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:10,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:17:10,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:10,722 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 21:17:10,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:10,723 INFO L85 PathProgramCache]: Analyzing trace with hash 2051152958, now seen corresponding path program 1 times [2023-11-23 21:17:10,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:10,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488011872] [2023-11-23 21:17:10,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:10,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:10,762 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:17:10,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [704203614] [2023-11-23 21:17:10,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:10,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:10,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:10,764 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:17:10,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:17:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:11,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 21:17:11,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:11,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 21:17:11,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-23 21:17:11,090 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:17:11,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-11-23 21:17:11,140 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:17:11,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2023-11-23 21:17:11,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:11,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:17:11,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:11,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488011872] [2023-11-23 21:17:11,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:17:11,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704203614] [2023-11-23 21:17:11,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704203614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:11,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:11,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:17:11,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337370668] [2023-11-23 21:17:11,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:11,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:17:11,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:11,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:17:11,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:17:11,183 INFO L87 Difference]: Start difference. First operand 48277 states and 141273 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 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) [2023-11-23 21:17:11,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:11,988 INFO L93 Difference]: Finished difference Result 48276 states and 141272 transitions. [2023-11-23 21:17:11,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:17:11,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 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 95 [2023-11-23 21:17:11,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:12,124 INFO L225 Difference]: With dead ends: 48276 [2023-11-23 21:17:12,126 INFO L226 Difference]: Without dead ends: 48276 [2023-11-23 21:17:12,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:17:12,127 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 1 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:12,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 984 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:17:12,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48276 states. [2023-11-23 21:17:13,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48276 to 48276. [2023-11-23 21:17:13,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48276 states, 48241 states have (on average 2.9284633403121827) internal successors, (141272), 48275 states have internal predecessors, (141272), 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) [2023-11-23 21:17:13,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48276 states to 48276 states and 141272 transitions. [2023-11-23 21:17:13,830 INFO L78 Accepts]: Start accepts. Automaton has 48276 states and 141272 transitions. Word has length 95 [2023-11-23 21:17:13,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:13,831 INFO L495 AbstractCegarLoop]: Abstraction has 48276 states and 141272 transitions. [2023-11-23 21:17:13,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 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) [2023-11-23 21:17:13,832 INFO L276 IsEmpty]: Start isEmpty. Operand 48276 states and 141272 transitions. [2023-11-23 21:17:13,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-23 21:17:13,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:13,833 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:13,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:17:14,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:14,040 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 21:17:14,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:14,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1170141852, now seen corresponding path program 1 times [2023-11-23 21:17:14,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:14,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124919039] [2023-11-23 21:17:14,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:14,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:14,096 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:17:14,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1336976949] [2023-11-23 21:17:14,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:14,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:14,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:14,099 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:17:14,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:17:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:14,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-23 21:17:14,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:14,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 21:17:14,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-23 21:17:14,702 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:17:14,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-23 21:17:14,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:17:14,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-23 21:17:14,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:14,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:17:14,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:14,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124919039] [2023-11-23 21:17:14,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:17:14,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336976949] [2023-11-23 21:17:14,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336976949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:14,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:14,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 21:17:14,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506873599] [2023-11-23 21:17:14,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:14,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 21:17:14,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:14,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 21:17:14,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:17:14,824 INFO L87 Difference]: Start difference. First operand 48276 states and 141272 transitions. Second operand has 13 states, 12 states have (on average 8.583333333333334) internal successors, (103), 13 states have internal predecessors, (103), 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) [2023-11-23 21:17:16,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:16,218 INFO L93 Difference]: Finished difference Result 48301 states and 141297 transitions. [2023-11-23 21:17:16,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 21:17:16,220 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.583333333333334) internal successors, (103), 13 states have internal predecessors, (103), 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 103 [2023-11-23 21:17:16,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:16,353 INFO L225 Difference]: With dead ends: 48301 [2023-11-23 21:17:16,353 INFO L226 Difference]: Without dead ends: 48301 [2023-11-23 21:17:16,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2023-11-23 21:17:16,355 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 379 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:16,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 2068 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:17:16,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48301 states. [2023-11-23 21:17:17,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48301 to 48275. [2023-11-23 21:17:17,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48275 states, 48241 states have (on average 2.9284426110569846) internal successors, (141271), 48274 states have internal predecessors, (141271), 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) [2023-11-23 21:17:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48275 states to 48275 states and 141271 transitions. [2023-11-23 21:17:18,097 INFO L78 Accepts]: Start accepts. Automaton has 48275 states and 141271 transitions. Word has length 103 [2023-11-23 21:17:18,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:18,097 INFO L495 AbstractCegarLoop]: Abstraction has 48275 states and 141271 transitions. [2023-11-23 21:17:18,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.583333333333334) internal successors, (103), 13 states have internal predecessors, (103), 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) [2023-11-23 21:17:18,098 INFO L276 IsEmpty]: Start isEmpty. Operand 48275 states and 141271 transitions. [2023-11-23 21:17:18,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-23 21:17:18,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:18,099 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:18,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:17:18,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:18,300 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 21:17:18,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:18,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1107015208, now seen corresponding path program 1 times [2023-11-23 21:17:18,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:18,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889410305] [2023-11-23 21:17:18,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:18,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:18,345 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:17:18,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [412809248] [2023-11-23 21:17:18,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:18,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:18,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:18,347 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:17:18,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:17:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:18,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-23 21:17:18,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:18,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 21:17:18,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-23 21:17:18,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:17:18,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-23 21:17:18,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:17:18,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-23 21:17:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:19,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:17:19,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:19,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889410305] [2023-11-23 21:17:19,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:17:19,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412809248] [2023-11-23 21:17:19,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412809248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:19,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:19,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 21:17:19,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585764149] [2023-11-23 21:17:19,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:19,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 21:17:19,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:19,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 21:17:19,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:17:19,031 INFO L87 Difference]: Start difference. First operand 48275 states and 141271 transitions. Second operand has 13 states, 12 states have (on average 9.25) internal successors, (111), 13 states have internal predecessors, (111), 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) [2023-11-23 21:17:19,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:19,941 INFO L93 Difference]: Finished difference Result 48300 states and 141296 transitions. [2023-11-23 21:17:19,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 21:17:19,941 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.25) internal successors, (111), 13 states have internal predecessors, (111), 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 111 [2023-11-23 21:17:19,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:20,085 INFO L225 Difference]: With dead ends: 48300 [2023-11-23 21:17:20,085 INFO L226 Difference]: Without dead ends: 48300 [2023-11-23 21:17:20,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2023-11-23 21:17:20,086 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 366 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:20,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 2000 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:17:20,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48300 states. [2023-11-23 21:17:21,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48300 to 48274. [2023-11-23 21:17:21,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48274 states, 48241 states have (on average 2.928421881801787) internal successors, (141270), 48273 states have internal predecessors, (141270), 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) [2023-11-23 21:17:21,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48274 states to 48274 states and 141270 transitions. [2023-11-23 21:17:21,588 INFO L78 Accepts]: Start accepts. Automaton has 48274 states and 141270 transitions. Word has length 111 [2023-11-23 21:17:21,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:21,588 INFO L495 AbstractCegarLoop]: Abstraction has 48274 states and 141270 transitions. [2023-11-23 21:17:21,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.25) internal successors, (111), 13 states have internal predecessors, (111), 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) [2023-11-23 21:17:21,588 INFO L276 IsEmpty]: Start isEmpty. Operand 48274 states and 141270 transitions. [2023-11-23 21:17:21,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-23 21:17:21,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:21,589 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:21,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:17:21,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:21,790 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 21:17:21,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:21,791 INFO L85 PathProgramCache]: Analyzing trace with hash 2030927100, now seen corresponding path program 1 times [2023-11-23 21:17:21,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:21,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653205390] [2023-11-23 21:17:21,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:21,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:21,843 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:17:21,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466468112] [2023-11-23 21:17:21,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:21,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:21,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:21,845 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:17:21,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:17:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:22,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 21:17:22,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:22,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 21:17:22,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-23 21:17:22,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:17:22,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-23 21:17:22,225 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:17:22,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-23 21:17:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:22,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:17:22,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:22,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653205390] [2023-11-23 21:17:22,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:17:22,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466468112] [2023-11-23 21:17:22,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466468112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:22,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:22,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:17:22,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131643339] [2023-11-23 21:17:22,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:22,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:17:22,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:22,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:17:22,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:17:22,251 INFO L87 Difference]: Start difference. First operand 48274 states and 141270 transitions. Second operand has 6 states, 5 states have (on average 23.8) internal successors, (119), 6 states have internal predecessors, (119), 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) [2023-11-23 21:17:22,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:22,625 INFO L93 Difference]: Finished difference Result 48273 states and 141269 transitions. [2023-11-23 21:17:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:17:22,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.8) internal successors, (119), 6 states have internal predecessors, (119), 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 119 [2023-11-23 21:17:22,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:22,758 INFO L225 Difference]: With dead ends: 48273 [2023-11-23 21:17:22,758 INFO L226 Difference]: Without dead ends: 48273 [2023-11-23 21:17:22,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:17:22,759 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 3 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:22,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 452 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:17:22,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48273 states. [2023-11-23 21:17:24,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48273 to 48273. [2023-11-23 21:17:24,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48273 states, 48241 states have (on average 2.928401152546589) internal successors, (141269), 48272 states have internal predecessors, (141269), 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) [2023-11-23 21:17:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48273 states to 48273 states and 141269 transitions. [2023-11-23 21:17:24,681 INFO L78 Accepts]: Start accepts. Automaton has 48273 states and 141269 transitions. Word has length 119 [2023-11-23 21:17:24,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:24,681 INFO L495 AbstractCegarLoop]: Abstraction has 48273 states and 141269 transitions. [2023-11-23 21:17:24,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.8) internal successors, (119), 6 states have internal predecessors, (119), 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) [2023-11-23 21:17:24,681 INFO L276 IsEmpty]: Start isEmpty. Operand 48273 states and 141269 transitions. [2023-11-23 21:17:24,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-23 21:17:24,688 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:24,688 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:24,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:17:24,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 21:17:24,913 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 21:17:24,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:24,914 INFO L85 PathProgramCache]: Analyzing trace with hash 517909924, now seen corresponding path program 1 times [2023-11-23 21:17:24,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:24,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803943844] [2023-11-23 21:17:24,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:24,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:24,973 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:17:24,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957579956] [2023-11-23 21:17:24,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:24,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:24,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:24,975 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:17:24,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd8297b-f653-4bd7-a7e4-d2d338da6a26/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 21:17:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:25,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:17:25,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:25,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:25,459 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:17:25,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:17:25,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:25,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803943844] [2023-11-23 21:17:25,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:17:25,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957579956] [2023-11-23 21:17:25,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957579956] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:17:25,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [203450419] [2023-11-23 21:17:25,635 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-23 21:17:25,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:17:25,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-23 21:17:25,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825214444] [2023-11-23 21:17:25,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:17:25,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:17:25,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:25,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:17:25,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:17:25,647 INFO L87 Difference]: Start difference. First operand 48273 states and 141269 transitions. Second operand has 8 states, 8 states have (on average 31.625) internal successors, (253), 8 states have internal predecessors, (253), 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) [2023-11-23 21:17:26,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:26,515 INFO L93 Difference]: Finished difference Result 48455 states and 141451 transitions. [2023-11-23 21:17:26,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 21:17:26,516 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 31.625) internal successors, (253), 8 states have internal predecessors, (253), 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 160 [2023-11-23 21:17:26,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:26,651 INFO L225 Difference]: With dead ends: 48455 [2023-11-23 21:17:26,651 INFO L226 Difference]: Without dead ends: 48455 [2023-11-23 21:17:26,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:17:26,652 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 182 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:26,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 1553 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:17:26,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48455 states. [2023-11-23 21:17:27,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48455 to 48455. [2023-11-23 21:17:27,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48455 states, 48423 states have (on average 2.9211531710137746) internal successors, (141451), 48454 states have internal predecessors, (141451), 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)