./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stack_longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ --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 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:07:29,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:07:29,487 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-19 05:07:29,503 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:07:29,504 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:07:29,548 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:07:29,549 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:07:29,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:07:29,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:07:29,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:07:29,557 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:07:29,558 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:07:29,559 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:07:29,560 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:07:29,561 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:07:29,561 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:07:29,562 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:07:29,562 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:07:29,563 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:07:29,563 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:07:29,564 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:07:29,565 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:07:29,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:07:29,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:07:29,567 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:07:29,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:07:29,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:07:29,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:07:29,569 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:07:29,569 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:07:29,571 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:07:29,571 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 05:07:29,571 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:07:29,571 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:07:29,572 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:07:29,572 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:07:29,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:07:29,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:07:29,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:07:29,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:07:29,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:07:29,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:07:29,574 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:07:29,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:07:29,575 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:07:29,575 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:07:29,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:07:29,576 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_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 [2023-11-19 05:07:29,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:07:29,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:07:29,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:07:29,923 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:07:29,923 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:07:29,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread/stack_longer-2.i [2023-11-19 05:07:33,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:07:33,894 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:07:33,895 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/sv-benchmarks/c/pthread/stack_longer-2.i [2023-11-19 05:07:33,925 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ/data/2aaf8e61a/85b05b334c8d44abae29a04579e52a3e/FLAG1758213d5 [2023-11-19 05:07:33,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ/data/2aaf8e61a/85b05b334c8d44abae29a04579e52a3e [2023-11-19 05:07:33,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:07:33,955 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:07:33,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:07:33,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:07:33,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:07:33,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:07:33" (1/1) ... [2023-11-19 05:07:33,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c8b4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:33, skipping insertion in model container [2023-11-19 05:07:33,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:07:33" (1/1) ... [2023-11-19 05:07:34,055 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:07:34,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:07:34,666 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:07:34,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:07:34,848 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:07:34,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:34 WrapperNode [2023-11-19 05:07:34,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:07:34,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:07:34,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:07:34,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:07:34,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:34" (1/1) ... [2023-11-19 05:07:34,905 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:34" (1/1) ... [2023-11-19 05:07:34,946 INFO L138 Inliner]: procedures = 277, calls = 39, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 198 [2023-11-19 05:07:34,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:07:34,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:07:34,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:07:34,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:07:34,960 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:34" (1/1) ... [2023-11-19 05:07:34,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:34" (1/1) ... [2023-11-19 05:07:34,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:34" (1/1) ... [2023-11-19 05:07:34,967 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:34" (1/1) ... [2023-11-19 05:07:34,984 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:34" (1/1) ... [2023-11-19 05:07:34,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:34" (1/1) ... [2023-11-19 05:07:34,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:34" (1/1) ... [2023-11-19 05:07:34,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:34" (1/1) ... [2023-11-19 05:07:35,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:07:35,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:07:35,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:07:35,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:07:35,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:34" (1/1) ... [2023-11-19 05:07:35,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:07:35,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:07:35,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:07:35,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f064fcf-76ff-4f3d-87d1-4b5f8052c3db/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:07:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-19 05:07:35,130 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-19 05:07:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-19 05:07:35,130 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-19 05:07:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:07:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:07:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:07:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:07:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 05:07:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:07:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:07:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:07:35,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:07:35,134 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 05:07:35,316 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:07:35,318 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:07:35,749 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:07:35,764 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:07:35,765 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:07:35,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:07:35 BoogieIcfgContainer [2023-11-19 05:07:35,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:07:35,774 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:07:35,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:07:35,778 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:07:35,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:07:33" (1/3) ... [2023-11-19 05:07:35,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78eedc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:07:35, skipping insertion in model container [2023-11-19 05:07:35,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:34" (2/3) ... [2023-11-19 05:07:35,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78eedc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:07:35, skipping insertion in model container [2023-11-19 05:07:35,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:07:35" (3/3) ... [2023-11-19 05:07:35,782 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-2.i [2023-11-19 05:07:35,793 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 05:07:35,806 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:07:35,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-19 05:07:35,806 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:07:35,984 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 05:07:36,032 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:07:36,051 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 219 places, 224 transitions, 462 flow [2023-11-19 05:07:36,054 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 219 places, 224 transitions, 462 flow [2023-11-19 05:07:36,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 224 transitions, 462 flow [2023-11-19 05:07:36,188 INFO L124 PetriNetUnfolderBase]: 12/222 cut-off events. [2023-11-19 05:07:36,188 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 05:07:36,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 222 events. 12/222 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 575 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 180. Up to 3 conditions per place. [2023-11-19 05:07:36,220 INFO L119 LiptonReduction]: Number of co-enabled transitions 18206 [2023-11-19 05:07:42,514 INFO L134 LiptonReduction]: Checked pairs total: 61557 [2023-11-19 05:07:42,514 INFO L136 LiptonReduction]: Total number of compositions: 168 [2023-11-19 05:07:42,522 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 85 transitions, 184 flow [2023-11-19 05:07:42,866 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7191 states, 7100 states have (on average 3.0126760563380284) internal successors, (21390), 7190 states have internal predecessors, (21390), 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) [2023-11-19 05:07:42,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:07:42,890 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;@43d58681, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:07:42,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-19 05:07:42,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 7191 states, 7100 states have (on average 3.0126760563380284) internal successors, (21390), 7190 states have internal predecessors, (21390), 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) [2023-11-19 05:07:42,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 05:07:42,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:42,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 05:07:42,922 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:07:42,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:42,928 INFO L85 PathProgramCache]: Analyzing trace with hash 822300394, now seen corresponding path program 1 times [2023-11-19 05:07:42,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:07:42,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393806469] [2023-11-19 05:07:42,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:42,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:07:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:43,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:43,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:07:43,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393806469] [2023-11-19 05:07:43,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393806469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:43,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:43,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:07:43,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604882863] [2023-11-19 05:07:43,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:43,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:07:43,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:07:43,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:07:43,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:07:43,310 INFO L87 Difference]: Start difference. First operand has 7191 states, 7100 states have (on average 3.0126760563380284) internal successors, (21390), 7190 states have internal predecessors, (21390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-19 05:07:43,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:43,556 INFO L93 Difference]: Finished difference Result 7191 states and 21132 transitions. [2023-11-19 05:07:43,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:07:43,560 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-19 05:07:43,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:43,679 INFO L225 Difference]: With dead ends: 7191 [2023-11-19 05:07:43,679 INFO L226 Difference]: Without dead ends: 7190 [2023-11-19 05:07:43,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:07:43,685 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:43,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:07:43,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7190 states. [2023-11-19 05:07:44,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7190 to 7190. [2023-11-19 05:07:44,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7190 states, 7100 states have (on average 2.976056338028169) internal successors, (21130), 7189 states have internal predecessors, (21130), 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) [2023-11-19 05:07:44,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7190 states to 7190 states and 21130 transitions. [2023-11-19 05:07:44,235 INFO L78 Accepts]: Start accepts. Automaton has 7190 states and 21130 transitions. Word has length 5 [2023-11-19 05:07:44,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:44,235 INFO L495 AbstractCegarLoop]: Abstraction has 7190 states and 21130 transitions. [2023-11-19 05:07:44,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-19 05:07:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand 7190 states and 21130 transitions. [2023-11-19 05:07:44,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 05:07:44,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:44,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 05:07:44,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:07:44,238 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:07:44,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:44,239 INFO L85 PathProgramCache]: Analyzing trace with hash -278518310, now seen corresponding path program 1 times [2023-11-19 05:07:44,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:07:44,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928801008] [2023-11-19 05:07:44,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:44,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:07:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:44,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:07:44,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928801008] [2023-11-19 05:07:44,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928801008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:44,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:44,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:07:44,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067339178] [2023-11-19 05:07:44,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:44,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:07:44,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:07:44,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:07:44,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:07:44,507 INFO L87 Difference]: Start difference. First operand 7190 states and 21130 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-19 05:07:44,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:44,865 INFO L93 Difference]: Finished difference Result 9102 states and 25289 transitions. [2023-11-19 05:07:44,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:07:44,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-19 05:07:44,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:44,965 INFO L225 Difference]: With dead ends: 9102 [2023-11-19 05:07:44,965 INFO L226 Difference]: Without dead ends: 9102 [2023-11-19 05:07:44,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:07:44,967 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 62 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:44,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 75 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:07:45,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9102 states. [2023-11-19 05:07:45,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9102 to 7324. [2023-11-19 05:07:45,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7324 states, 7258 states have (on average 2.807384954532929) internal successors, (20376), 7323 states have internal predecessors, (20376), 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) [2023-11-19 05:07:45,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7324 states to 7324 states and 20376 transitions. [2023-11-19 05:07:45,438 INFO L78 Accepts]: Start accepts. Automaton has 7324 states and 20376 transitions. Word has length 6 [2023-11-19 05:07:45,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:45,443 INFO L495 AbstractCegarLoop]: Abstraction has 7324 states and 20376 transitions. [2023-11-19 05:07:45,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-19 05:07:45,444 INFO L276 IsEmpty]: Start isEmpty. Operand 7324 states and 20376 transitions. [2023-11-19 05:07:45,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 05:07:45,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:45,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:45,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:07:45,452 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:07:45,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:45,453 INFO L85 PathProgramCache]: Analyzing trace with hash 745007840, now seen corresponding path program 1 times [2023-11-19 05:07:45,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:07:45,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456137498] [2023-11-19 05:07:45,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:45,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:07:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:46,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:46,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:07:46,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456137498] [2023-11-19 05:07:46,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456137498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:46,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:46,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:07:46,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699481613] [2023-11-19 05:07:46,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:46,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:07:46,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:07:46,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:07:46,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:07:46,140 INFO L87 Difference]: Start difference. First operand 7324 states and 20376 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2023-11-19 05:07:46,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:46,956 INFO L93 Difference]: Finished difference Result 11796 states and 32424 transitions. [2023-11-19 05:07:46,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:07:46,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2023-11-19 05:07:46,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:47,043 INFO L225 Difference]: With dead ends: 11796 [2023-11-19 05:07:47,043 INFO L226 Difference]: Without dead ends: 11796 [2023-11-19 05:07:47,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:07:47,050 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 225 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:47,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 271 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 05:07:47,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11796 states. [2023-11-19 05:07:47,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11796 to 10696. [2023-11-19 05:07:47,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10696 states, 10630 states have (on average 2.84722483537159) internal successors, (30266), 10695 states have internal predecessors, (30266), 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) [2023-11-19 05:07:47,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10696 states to 10696 states and 30266 transitions. [2023-11-19 05:07:47,557 INFO L78 Accepts]: Start accepts. Automaton has 10696 states and 30266 transitions. Word has length 10 [2023-11-19 05:07:47,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:47,558 INFO L495 AbstractCegarLoop]: Abstraction has 10696 states and 30266 transitions. [2023-11-19 05:07:47,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2023-11-19 05:07:47,559 INFO L276 IsEmpty]: Start isEmpty. Operand 10696 states and 30266 transitions. [2023-11-19 05:07:47,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 05:07:47,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:47,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:47,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:07:47,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:07:47,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:47,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1486870747, now seen corresponding path program 1 times [2023-11-19 05:07:47,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:07:47,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202490934] [2023-11-19 05:07:47,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:47,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:07:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:48,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:48,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:07:48,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202490934] [2023-11-19 05:07:48,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202490934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:48,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:48,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:07:48,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303565109] [2023-11-19 05:07:48,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:48,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:07:48,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:07:48,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:07:48,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:07:48,312 INFO L87 Difference]: Start difference. First operand 10696 states and 30266 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2023-11-19 05:07:48,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:48,837 INFO L93 Difference]: Finished difference Result 11663 states and 33021 transitions. [2023-11-19 05:07:48,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:07:48,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2023-11-19 05:07:48,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:48,913 INFO L225 Difference]: With dead ends: 11663 [2023-11-19 05:07:48,913 INFO L226 Difference]: Without dead ends: 11663 [2023-11-19 05:07:48,914 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 [2023-11-19 05:07:48,915 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 124 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:48,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 154 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 05:07:48,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11663 states. [2023-11-19 05:07:49,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11663 to 11663. [2023-11-19 05:07:49,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11663 states, 11597 states have (on average 2.847374320945072) internal successors, (33021), 11662 states have internal predecessors, (33021), 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) [2023-11-19 05:07:49,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11663 states to 11663 states and 33021 transitions. [2023-11-19 05:07:49,449 INFO L78 Accepts]: Start accepts. Automaton has 11663 states and 33021 transitions. Word has length 16 [2023-11-19 05:07:49,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:49,450 INFO L495 AbstractCegarLoop]: Abstraction has 11663 states and 33021 transitions. [2023-11-19 05:07:49,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2023-11-19 05:07:49,450 INFO L276 IsEmpty]: Start isEmpty. Operand 11663 states and 33021 transitions. [2023-11-19 05:07:49,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 05:07:49,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:49,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:49,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:07:49,454 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:07:49,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:49,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1882174051, now seen corresponding path program 1 times [2023-11-19 05:07:49,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:07:49,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419230045] [2023-11-19 05:07:49,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:49,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:07:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:49,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:49,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:07:49,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419230045] [2023-11-19 05:07:49,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419230045] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:49,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:49,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:07:49,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954733254] [2023-11-19 05:07:49,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:49,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:07:49,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:07:49,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:07:49,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:07:49,597 INFO L87 Difference]: Start difference. First operand 11663 states and 33021 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 05:07:49,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:49,912 INFO L93 Difference]: Finished difference Result 19790 states and 56646 transitions. [2023-11-19 05:07:49,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:07:49,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2023-11-19 05:07:49,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:50,008 INFO L225 Difference]: With dead ends: 19790 [2023-11-19 05:07:50,008 INFO L226 Difference]: Without dead ends: 19790 [2023-11-19 05:07:50,009 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 [2023-11-19 05:07:50,010 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 68 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:50,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 111 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:07:50,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19790 states. [2023-11-19 05:07:50,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19790 to 11861. [2023-11-19 05:07:50,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11861 states, 11795 states have (on average 2.8485799067401443) internal successors, (33599), 11860 states have internal predecessors, (33599), 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) [2023-11-19 05:07:50,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11861 states to 11861 states and 33599 transitions. [2023-11-19 05:07:50,637 INFO L78 Accepts]: Start accepts. Automaton has 11861 states and 33599 transitions. Word has length 17 [2023-11-19 05:07:50,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:50,637 INFO L495 AbstractCegarLoop]: Abstraction has 11861 states and 33599 transitions. [2023-11-19 05:07:50,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 05:07:50,638 INFO L276 IsEmpty]: Start isEmpty. Operand 11861 states and 33599 transitions. [2023-11-19 05:07:50,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 05:07:50,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:50,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:50,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:07:50,642 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:07:50,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:50,643 INFO L85 PathProgramCache]: Analyzing trace with hash -425394896, now seen corresponding path program 1 times [2023-11-19 05:07:50,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:07:50,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461916831] [2023-11-19 05:07:50,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:50,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:07:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:50,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:50,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:07:50,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461916831] [2023-11-19 05:07:50,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461916831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:50,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:50,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:07:50,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242892495] [2023-11-19 05:07:50,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:50,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:07:50,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:07:50,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:07:50,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:07:50,699 INFO L87 Difference]: Start difference. First operand 11861 states and 33599 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2023-11-19 05:07:51,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:51,013 INFO L93 Difference]: Finished difference Result 14610 states and 41039 transitions. [2023-11-19 05:07:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:07:51,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2023-11-19 05:07:51,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:51,076 INFO L225 Difference]: With dead ends: 14610 [2023-11-19 05:07:51,076 INFO L226 Difference]: Without dead ends: 14598 [2023-11-19 05:07:51,077 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 [2023-11-19 05:07:51,078 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 42 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:51,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 89 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:07:51,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14598 states. [2023-11-19 05:07:51,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14598 to 14113. [2023-11-19 05:07:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14113 states, 14047 states have (on average 2.8603972378443796) internal successors, (40180), 14112 states have internal predecessors, (40180), 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) [2023-11-19 05:07:51,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14113 states to 14113 states and 40180 transitions. [2023-11-19 05:07:51,813 INFO L78 Accepts]: Start accepts. Automaton has 14113 states and 40180 transitions. Word has length 18 [2023-11-19 05:07:51,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:51,815 INFO L495 AbstractCegarLoop]: Abstraction has 14113 states and 40180 transitions. [2023-11-19 05:07:51,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2023-11-19 05:07:51,815 INFO L276 IsEmpty]: Start isEmpty. Operand 14113 states and 40180 transitions. [2023-11-19 05:07:51,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 05:07:51,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:51,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:51,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 05:07:51,820 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:07:51,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:51,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1555790749, now seen corresponding path program 1 times [2023-11-19 05:07:51,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:07:51,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15992012] [2023-11-19 05:07:51,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:51,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:07:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:52,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:52,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:07:52,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15992012] [2023-11-19 05:07:52,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15992012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:52,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:52,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:07:52,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784662340] [2023-11-19 05:07:52,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:52,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:07:52,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:07:52,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:07:52,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:07:52,694 INFO L87 Difference]: Start difference. First operand 14113 states and 40180 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:53,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:53,672 INFO L93 Difference]: Finished difference Result 18166 states and 49690 transitions. [2023-11-19 05:07:53,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:07:53,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-19 05:07:53,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:53,749 INFO L225 Difference]: With dead ends: 18166 [2023-11-19 05:07:53,749 INFO L226 Difference]: Without dead ends: 18166 [2023-11-19 05:07:53,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:07:53,751 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 483 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:53,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 348 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 05:07:53,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18166 states. [2023-11-19 05:07:54,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18166 to 14651. [2023-11-19 05:07:54,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14651 states, 14585 states have (on average 2.867740829619472) internal successors, (41826), 14650 states have internal predecessors, (41826), 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) [2023-11-19 05:07:54,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14651 states to 14651 states and 41826 transitions. [2023-11-19 05:07:54,343 INFO L78 Accepts]: Start accepts. Automaton has 14651 states and 41826 transitions. Word has length 20 [2023-11-19 05:07:54,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:54,343 INFO L495 AbstractCegarLoop]: Abstraction has 14651 states and 41826 transitions. [2023-11-19 05:07:54,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:54,344 INFO L276 IsEmpty]: Start isEmpty. Operand 14651 states and 41826 transitions. [2023-11-19 05:07:54,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 05:07:54,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:54,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:54,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 05:07:54,347 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:07:54,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:54,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2033378353, now seen corresponding path program 2 times [2023-11-19 05:07:54,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:07:54,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718413605] [2023-11-19 05:07:54,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:54,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:07:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:55,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:07:55,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718413605] [2023-11-19 05:07:55,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718413605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:55,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:55,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:07:55,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718104186] [2023-11-19 05:07:55,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:55,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:07:55,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:07:55,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:07:55,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:07:55,168 INFO L87 Difference]: Start difference. First operand 14651 states and 41826 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:56,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:56,302 INFO L93 Difference]: Finished difference Result 20703 states and 57178 transitions. [2023-11-19 05:07:56,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 05:07:56,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-19 05:07:56,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:56,497 INFO L225 Difference]: With dead ends: 20703 [2023-11-19 05:07:56,497 INFO L226 Difference]: Without dead ends: 20703 [2023-11-19 05:07:56,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:07:56,498 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 430 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:56,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 529 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 05:07:56,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20703 states. [2023-11-19 05:07:56,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20703 to 15207. [2023-11-19 05:07:56,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15207 states, 15141 states have (on average 2.87391849943861) internal successors, (43514), 15206 states have internal predecessors, (43514), 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) [2023-11-19 05:07:56,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15207 states to 15207 states and 43514 transitions. [2023-11-19 05:07:56,946 INFO L78 Accepts]: Start accepts. Automaton has 15207 states and 43514 transitions. Word has length 20 [2023-11-19 05:07:56,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:56,946 INFO L495 AbstractCegarLoop]: Abstraction has 15207 states and 43514 transitions. [2023-11-19 05:07:56,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:56,947 INFO L276 IsEmpty]: Start isEmpty. Operand 15207 states and 43514 transitions. [2023-11-19 05:07:56,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 05:07:56,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:56,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:56,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 05:07:56,952 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:07:56,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:56,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1202666605, now seen corresponding path program 3 times [2023-11-19 05:07:56,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:07:56,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936405443] [2023-11-19 05:07:56,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:56,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:07:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:57,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:57,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:07:57,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936405443] [2023-11-19 05:07:57,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936405443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:57,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:57,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:07:57,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372814466] [2023-11-19 05:07:57,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:57,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:07:57,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:07:57,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:07:57,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:07:57,586 INFO L87 Difference]: Start difference. First operand 15207 states and 43514 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:58,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:58,653 INFO L93 Difference]: Finished difference Result 27870 states and 78334 transitions. [2023-11-19 05:07:58,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 05:07:58,654 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-19 05:07:58,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:58,751 INFO L225 Difference]: With dead ends: 27870 [2023-11-19 05:07:58,752 INFO L226 Difference]: Without dead ends: 27870 [2023-11-19 05:07:58,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-11-19 05:07:58,753 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 429 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:58,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 474 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 05:07:58,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27870 states. [2023-11-19 05:07:59,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27870 to 17173. [2023-11-19 05:07:59,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17173 states, 17107 states have (on average 2.9076401473081197) internal successors, (49741), 17172 states have internal predecessors, (49741), 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) [2023-11-19 05:07:59,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17173 states to 17173 states and 49741 transitions. [2023-11-19 05:07:59,472 INFO L78 Accepts]: Start accepts. Automaton has 17173 states and 49741 transitions. Word has length 20 [2023-11-19 05:07:59,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:59,472 INFO L495 AbstractCegarLoop]: Abstraction has 17173 states and 49741 transitions. [2023-11-19 05:07:59,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:59,473 INFO L276 IsEmpty]: Start isEmpty. Operand 17173 states and 49741 transitions. [2023-11-19 05:07:59,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 05:07:59,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:59,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:59,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 05:07:59,478 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:07:59,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:59,479 INFO L85 PathProgramCache]: Analyzing trace with hash -283142159, now seen corresponding path program 4 times [2023-11-19 05:07:59,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:07:59,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582508869] [2023-11-19 05:07:59,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:59,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:07:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:59,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:59,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:07:59,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582508869] [2023-11-19 05:07:59,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582508869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:59,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:59,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:07:59,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619040546] [2023-11-19 05:07:59,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:59,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:07:59,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:07:59,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:07:59,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:07:59,990 INFO L87 Difference]: Start difference. First operand 17173 states and 49741 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:01,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:08:01,075 INFO L93 Difference]: Finished difference Result 32678 states and 92761 transitions. [2023-11-19 05:08:01,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 05:08:01,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-19 05:08:01,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:08:01,183 INFO L225 Difference]: With dead ends: 32678 [2023-11-19 05:08:01,183 INFO L226 Difference]: Without dead ends: 32678 [2023-11-19 05:08:01,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-19 05:08:01,184 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 470 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:08:01,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 396 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 05:08:01,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32678 states. [2023-11-19 05:08:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32678 to 19139. [2023-11-19 05:08:01,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19139 states, 19073 states have (on average 2.934409898809836) internal successors, (55968), 19138 states have internal predecessors, (55968), 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) [2023-11-19 05:08:01,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19139 states to 19139 states and 55968 transitions. [2023-11-19 05:08:01,933 INFO L78 Accepts]: Start accepts. Automaton has 19139 states and 55968 transitions. Word has length 20 [2023-11-19 05:08:01,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:08:01,933 INFO L495 AbstractCegarLoop]: Abstraction has 19139 states and 55968 transitions. [2023-11-19 05:08:01,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:01,934 INFO L276 IsEmpty]: Start isEmpty. Operand 19139 states and 55968 transitions. [2023-11-19 05:08:01,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 05:08:01,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:08:01,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:08:01,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 05:08:01,940 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:08:01,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:08:01,941 INFO L85 PathProgramCache]: Analyzing trace with hash 291064611, now seen corresponding path program 5 times [2023-11-19 05:08:01,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:08:01,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862920936] [2023-11-19 05:08:01,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:08:01,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:08:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:08:02,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:08:02,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:08:02,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862920936] [2023-11-19 05:08:02,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862920936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:08:02,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:08:02,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:08:02,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198710805] [2023-11-19 05:08:02,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:08:02,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:08:02,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:08:02,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:08:02,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:08:02,439 INFO L87 Difference]: Start difference. First operand 19139 states and 55968 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:03,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:08:03,429 INFO L93 Difference]: Finished difference Result 24488 states and 71422 transitions. [2023-11-19 05:08:03,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 05:08:03,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-19 05:08:03,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:08:03,512 INFO L225 Difference]: With dead ends: 24488 [2023-11-19 05:08:03,512 INFO L226 Difference]: Without dead ends: 24488 [2023-11-19 05:08:03,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2023-11-19 05:08:03,513 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 429 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:08:03,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 367 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 05:08:03,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24488 states. [2023-11-19 05:08:03,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24488 to 18338. [2023-11-19 05:08:04,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18338 states, 18272 states have (on average 2.9328480735551663) internal successors, (53589), 18337 states have internal predecessors, (53589), 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) [2023-11-19 05:08:04,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18338 states to 18338 states and 53589 transitions. [2023-11-19 05:08:04,085 INFO L78 Accepts]: Start accepts. Automaton has 18338 states and 53589 transitions. Word has length 20 [2023-11-19 05:08:04,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:08:04,086 INFO L495 AbstractCegarLoop]: Abstraction has 18338 states and 53589 transitions. [2023-11-19 05:08:04,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:04,086 INFO L276 IsEmpty]: Start isEmpty. Operand 18338 states and 53589 transitions. [2023-11-19 05:08:04,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 05:08:04,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:08:04,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:08:04,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 05:08:04,091 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:08:04,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:08:04,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1174771906, now seen corresponding path program 1 times [2023-11-19 05:08:04,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:08:04,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696171038] [2023-11-19 05:08:04,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:08:04,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:08:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:08:04,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:08:04,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:08:04,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696171038] [2023-11-19 05:08:04,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696171038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:08:04,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:08:04,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:08:04,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092744844] [2023-11-19 05:08:04,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:08:04,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:08:04,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:08:04,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:08:04,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:08:04,567 INFO L87 Difference]: Start difference. First operand 18338 states and 53589 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:05,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:08:05,571 INFO L93 Difference]: Finished difference Result 19575 states and 57309 transitions. [2023-11-19 05:08:05,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:08:05,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-19 05:08:05,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:08:05,654 INFO L225 Difference]: With dead ends: 19575 [2023-11-19 05:08:05,654 INFO L226 Difference]: Without dead ends: 19575 [2023-11-19 05:08:05,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2023-11-19 05:08:05,656 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 319 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:08:05,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 283 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 05:08:05,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19575 states. [2023-11-19 05:08:06,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19575 to 18148. [2023-11-19 05:08:06,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18148 states, 18090 states have (on average 2.9420121614151467) internal successors, (53221), 18147 states have internal predecessors, (53221), 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) [2023-11-19 05:08:06,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18148 states to 18148 states and 53221 transitions. [2023-11-19 05:08:06,249 INFO L78 Accepts]: Start accepts. Automaton has 18148 states and 53221 transitions. Word has length 20 [2023-11-19 05:08:06,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:08:06,249 INFO L495 AbstractCegarLoop]: Abstraction has 18148 states and 53221 transitions. [2023-11-19 05:08:06,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:06,249 INFO L276 IsEmpty]: Start isEmpty. Operand 18148 states and 53221 transitions. [2023-11-19 05:08:06,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 05:08:06,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:08:06,254 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] [2023-11-19 05:08:06,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 05:08:06,255 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:08:06,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:08:06,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1112544488, now seen corresponding path program 1 times [2023-11-19 05:08:06,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:08:06,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532063498] [2023-11-19 05:08:06,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:08:06,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:08:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:08:06,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:08:06,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:08:06,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532063498] [2023-11-19 05:08:06,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532063498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:08:06,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:08:06,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:08:06,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432509721] [2023-11-19 05:08:06,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:08:06,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:08:06,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:08:06,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:08:06,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:08:06,308 INFO L87 Difference]: Start difference. First operand 18148 states and 53221 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 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) [2023-11-19 05:08:06,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:08:06,592 INFO L93 Difference]: Finished difference Result 18519 states and 54272 transitions. [2023-11-19 05:08:06,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:08:06,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 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 [2023-11-19 05:08:06,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:08:06,670 INFO L225 Difference]: With dead ends: 18519 [2023-11-19 05:08:06,670 INFO L226 Difference]: Without dead ends: 18519 [2023-11-19 05:08:06,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:08:06,672 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 38 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:08:06,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 84 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:08:06,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18519 states. [2023-11-19 05:08:07,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18519 to 18519. [2023-11-19 05:08:07,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18519 states, 18469 states have (on average 2.938545671124587) internal successors, (54272), 18518 states have internal predecessors, (54272), 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) [2023-11-19 05:08:07,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18519 states to 18519 states and 54272 transitions. [2023-11-19 05:08:07,276 INFO L78 Accepts]: Start accepts. Automaton has 18519 states and 54272 transitions. Word has length 22 [2023-11-19 05:08:07,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:08:07,276 INFO L495 AbstractCegarLoop]: Abstraction has 18519 states and 54272 transitions. [2023-11-19 05:08:07,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 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) [2023-11-19 05:08:07,277 INFO L276 IsEmpty]: Start isEmpty. Operand 18519 states and 54272 transitions. [2023-11-19 05:08:07,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 05:08:07,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:08:07,282 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] [2023-11-19 05:08:07,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 05:08:07,283 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:08:07,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:08:07,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1182867314, now seen corresponding path program 1 times [2023-11-19 05:08:07,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:08:07,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800247280] [2023-11-19 05:08:07,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:08:07,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:08:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:08:07,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:08:07,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:08:07,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800247280] [2023-11-19 05:08:07,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800247280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:08:07,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:08:07,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:08:07,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046689096] [2023-11-19 05:08:07,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:08:07,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:08:07,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:08:07,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:08:07,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:08:07,411 INFO L87 Difference]: Start difference. First operand 18519 states and 54272 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-19 05:08:07,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:08:07,508 INFO L93 Difference]: Finished difference Result 2684 states and 6993 transitions. [2023-11-19 05:08:07,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:08:07,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2023-11-19 05:08:07,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:08:07,517 INFO L225 Difference]: With dead ends: 2684 [2023-11-19 05:08:07,517 INFO L226 Difference]: Without dead ends: 2684 [2023-11-19 05:08:07,518 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 [2023-11-19 05:08:07,519 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 62 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:08:07,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 56 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:08:07,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2023-11-19 05:08:07,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 2309. [2023-11-19 05:08:07,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 2301 states have (on average 2.5745328118209474) internal successors, (5924), 2308 states have internal predecessors, (5924), 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) [2023-11-19 05:08:07,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 5924 transitions. [2023-11-19 05:08:07,599 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 5924 transitions. Word has length 27 [2023-11-19 05:08:07,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:08:07,599 INFO L495 AbstractCegarLoop]: Abstraction has 2309 states and 5924 transitions. [2023-11-19 05:08:07,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-19 05:08:07,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 5924 transitions. [2023-11-19 05:08:07,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 05:08:07,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:08:07,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:08:07,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 05:08:07,606 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:08:07,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:08:07,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1189864854, now seen corresponding path program 1 times [2023-11-19 05:08:07,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:08:07,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101597692] [2023-11-19 05:08:07,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:08:07,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:08:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:08:08,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:08:08,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:08:08,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101597692] [2023-11-19 05:08:08,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101597692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:08:08,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:08:08,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:08:08,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671156276] [2023-11-19 05:08:08,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:08:08,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:08:08,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:08:08,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:08:08,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:08:08,397 INFO L87 Difference]: Start difference. First operand 2309 states and 5924 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:09,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:08:09,347 INFO L93 Difference]: Finished difference Result 3394 states and 8486 transitions. [2023-11-19 05:08:09,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 05:08:09,348 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-11-19 05:08:09,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:08:09,355 INFO L225 Difference]: With dead ends: 3394 [2023-11-19 05:08:09,355 INFO L226 Difference]: Without dead ends: 3394 [2023-11-19 05:08:09,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-11-19 05:08:09,357 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 314 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:08:09,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 304 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 05:08:09,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3394 states. [2023-11-19 05:08:09,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3394 to 2241. [2023-11-19 05:08:09,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2241 states, 2233 states have (on average 2.561576354679803) internal successors, (5720), 2240 states have internal predecessors, (5720), 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) [2023-11-19 05:08:09,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 5720 transitions. [2023-11-19 05:08:09,418 INFO L78 Accepts]: Start accepts. Automaton has 2241 states and 5720 transitions. Word has length 31 [2023-11-19 05:08:09,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:08:09,418 INFO L495 AbstractCegarLoop]: Abstraction has 2241 states and 5720 transitions. [2023-11-19 05:08:09,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:09,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2241 states and 5720 transitions. [2023-11-19 05:08:09,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 05:08:09,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:08:09,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:08:09,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 05:08:09,423 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:08:09,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:08:09,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1226969198, now seen corresponding path program 2 times [2023-11-19 05:08:09,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:08:09,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400996706] [2023-11-19 05:08:09,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:08:09,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:08:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:08:10,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:08:10,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:08:10,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400996706] [2023-11-19 05:08:10,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400996706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:08:10,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:08:10,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:08:10,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057374771] [2023-11-19 05:08:10,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:08:10,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:08:10,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:08:10,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:08:10,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:08:10,112 INFO L87 Difference]: Start difference. First operand 2241 states and 5720 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:10,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:08:10,976 INFO L93 Difference]: Finished difference Result 4144 states and 10472 transitions. [2023-11-19 05:08:10,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 05:08:10,977 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-11-19 05:08:10,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:08:10,986 INFO L225 Difference]: With dead ends: 4144 [2023-11-19 05:08:10,986 INFO L226 Difference]: Without dead ends: 4144 [2023-11-19 05:08:10,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-11-19 05:08:10,987 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 273 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:08:10,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 274 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 05:08:10,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4144 states. [2023-11-19 05:08:11,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4144 to 2295. [2023-11-19 05:08:11,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 2287 states have (on average 2.564057717533887) internal successors, (5864), 2294 states have internal predecessors, (5864), 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) [2023-11-19 05:08:11,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 5864 transitions. [2023-11-19 05:08:11,057 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 5864 transitions. Word has length 31 [2023-11-19 05:08:11,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:08:11,057 INFO L495 AbstractCegarLoop]: Abstraction has 2295 states and 5864 transitions. [2023-11-19 05:08:11,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 5864 transitions. [2023-11-19 05:08:11,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 05:08:11,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:08:11,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:08:11,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 05:08:11,063 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:08:11,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:08:11,064 INFO L85 PathProgramCache]: Analyzing trace with hash 2106896702, now seen corresponding path program 3 times [2023-11-19 05:08:11,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:08:11,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921972789] [2023-11-19 05:08:11,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:08:11,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:08:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:08:11,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:08:11,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:08:11,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921972789] [2023-11-19 05:08:11,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921972789] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:08:11,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:08:11,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:08:11,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70444838] [2023-11-19 05:08:11,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:08:11,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:08:11,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:08:11,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:08:11,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:08:11,727 INFO L87 Difference]: Start difference. First operand 2295 states and 5864 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:12,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:08:12,714 INFO L93 Difference]: Finished difference Result 3413 states and 8511 transitions. [2023-11-19 05:08:12,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 05:08:12,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-11-19 05:08:12,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:08:12,722 INFO L225 Difference]: With dead ends: 3413 [2023-11-19 05:08:12,722 INFO L226 Difference]: Without dead ends: 3413 [2023-11-19 05:08:12,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2023-11-19 05:08:12,723 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 314 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:08:12,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 369 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 05:08:12,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3413 states. [2023-11-19 05:08:12,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3413 to 2161. [2023-11-19 05:08:12,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 2153 states have (on average 2.544356711565258) internal successors, (5478), 2160 states have internal predecessors, (5478), 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) [2023-11-19 05:08:12,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 5478 transitions. [2023-11-19 05:08:12,814 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 5478 transitions. Word has length 31 [2023-11-19 05:08:12,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:08:12,815 INFO L495 AbstractCegarLoop]: Abstraction has 2161 states and 5478 transitions. [2023-11-19 05:08:12,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:12,815 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 5478 transitions. [2023-11-19 05:08:12,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 05:08:12,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:08:12,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:08:12,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 05:08:12,819 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:08:12,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:08:12,821 INFO L85 PathProgramCache]: Analyzing trace with hash -564614880, now seen corresponding path program 4 times [2023-11-19 05:08:12,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:08:12,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103187392] [2023-11-19 05:08:12,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:08:12,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:08:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:08:13,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:08:13,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:08:13,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103187392] [2023-11-19 05:08:13,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103187392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:08:13,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:08:13,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:08:13,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901769780] [2023-11-19 05:08:13,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:08:13,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:08:13,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:08:13,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:08:13,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:08:13,364 INFO L87 Difference]: Start difference. First operand 2161 states and 5478 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:13,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:08:13,894 INFO L93 Difference]: Finished difference Result 2739 states and 7024 transitions. [2023-11-19 05:08:13,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 05:08:13,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-11-19 05:08:13,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:08:13,899 INFO L225 Difference]: With dead ends: 2739 [2023-11-19 05:08:13,899 INFO L226 Difference]: Without dead ends: 2739 [2023-11-19 05:08:13,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2023-11-19 05:08:13,900 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 226 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:08:13,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 158 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 05:08:13,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2023-11-19 05:08:13,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2101. [2023-11-19 05:08:13,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2101 states, 2093 states have (on average 2.539417104634496) internal successors, (5315), 2100 states have internal predecessors, (5315), 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) [2023-11-19 05:08:13,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2101 states to 2101 states and 5315 transitions. [2023-11-19 05:08:13,938 INFO L78 Accepts]: Start accepts. Automaton has 2101 states and 5315 transitions. Word has length 31 [2023-11-19 05:08:13,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:08:13,938 INFO L495 AbstractCegarLoop]: Abstraction has 2101 states and 5315 transitions. [2023-11-19 05:08:13,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:08:13,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2101 states and 5315 transitions. [2023-11-19 05:08:13,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 05:08:13,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:08:13,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:08:13,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-19 05:08:13,942 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-19 05:08:13,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:08:13,942 INFO L85 PathProgramCache]: Analyzing trace with hash 557468674, now seen corresponding path program 5 times [2023-11-19 05:08:13,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:08:13,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348162253] [2023-11-19 05:08:13,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:08:13,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:08:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat