./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX --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 1ad14026eba5b252f16e1e7c5b06294a08c72d8fedf1d2cbda596d8ea988add3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:15:01,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:15:01,270 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-12 00:15:01,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:15:01,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:15:01,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:15:01,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:15:01,304 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:15:01,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:15:01,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:15:01,306 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:15:01,307 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:15:01,307 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:15:01,308 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:15:01,308 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:15:01,309 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:15:01,310 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:15:01,310 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:15:01,311 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:15:01,311 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:15:01,312 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:15:01,313 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:15:01,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:15:01,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:15:01,314 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:15:01,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:15:01,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:15:01,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:15:01,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:15:01,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:15:01,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:15:01,317 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 00:15:01,317 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:15:01,317 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:15:01,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:15:01,318 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:15:01,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:15:01,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:15:01,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:15:01,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:15:01,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:15:01,323 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:15:01,323 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:15:01,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:15:01,324 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:15:01,324 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:15:01,325 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:15:01,328 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_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ad14026eba5b252f16e1e7c5b06294a08c72d8fedf1d2cbda596d8ea988add3 [2023-11-12 00:15:01,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:15:01,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:15:01,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:15:01,647 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:15:01,647 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:15:01,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-lit/qw2004_variant.i [2023-11-12 00:15:04,780 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:15:05,148 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:15:05,149 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/sv-benchmarks/c/pthread-lit/qw2004_variant.i [2023-11-12 00:15:05,175 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/data/41d489c71/1aa919af67c849788ee29e40a8ede477/FLAG9bee7e382 [2023-11-12 00:15:05,193 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/data/41d489c71/1aa919af67c849788ee29e40a8ede477 [2023-11-12 00:15:05,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:15:05,198 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:15:05,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:15:05,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:15:05,209 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:15:05,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:15:05" (1/1) ... [2023-11-12 00:15:05,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a8e61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05, skipping insertion in model container [2023-11-12 00:15:05,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:15:05" (1/1) ... [2023-11-12 00:15:05,275 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:15:05,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:15:05,699 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:15:05,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:15:05,798 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:15:05,798 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:15:05,806 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:15:05,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05 WrapperNode [2023-11-12 00:15:05,807 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:15:05,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:15:05,808 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:15:05,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:15:05,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05" (1/1) ... [2023-11-12 00:15:05,834 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05" (1/1) ... [2023-11-12 00:15:05,863 INFO L138 Inliner]: procedures = 174, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 157 [2023-11-12 00:15:05,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:15:05,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:15:05,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:15:05,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:15:05,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05" (1/1) ... [2023-11-12 00:15:05,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05" (1/1) ... [2023-11-12 00:15:05,879 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05" (1/1) ... [2023-11-12 00:15:05,879 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05" (1/1) ... [2023-11-12 00:15:05,887 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05" (1/1) ... [2023-11-12 00:15:05,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05" (1/1) ... [2023-11-12 00:15:05,893 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05" (1/1) ... [2023-11-12 00:15:05,894 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05" (1/1) ... [2023-11-12 00:15:05,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:15:05,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:15:05,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:15:05,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:15:05,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05" (1/1) ... [2023-11-12 00:15:05,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:15:05,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:15:05,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:15:05,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:15:05,985 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2023-11-12 00:15:05,985 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2023-11-12 00:15:05,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:15:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:15:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:15:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:15:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:15:05,989 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpAdd [2023-11-12 00:15:05,989 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpAdd [2023-11-12 00:15:05,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:15:05,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:15:05,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:15:05,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:15:05,992 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:15:06,137 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:15:06,139 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:15:06,418 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:15:06,536 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:15:06,536 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:15:06,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:15:06 BoogieIcfgContainer [2023-11-12 00:15:06,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:15:06,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:15:06,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:15:06,545 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:15:06,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:15:05" (1/3) ... [2023-11-12 00:15:06,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3039c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:15:06, skipping insertion in model container [2023-11-12 00:15:06,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:05" (2/3) ... [2023-11-12 00:15:06,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3039c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:15:06, skipping insertion in model container [2023-11-12 00:15:06,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:15:06" (3/3) ... [2023-11-12 00:15:06,548 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004_variant.i [2023-11-12 00:15:06,557 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:15:06,567 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:15:06,567 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-11-12 00:15:06,567 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:15:06,642 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:15:06,681 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:15:06,697 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 142 transitions, 292 flow [2023-11-12 00:15:06,700 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 142 transitions, 292 flow [2023-11-12 00:15:06,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 142 transitions, 292 flow [2023-11-12 00:15:06,866 INFO L124 PetriNetUnfolderBase]: 7/153 cut-off events. [2023-11-12 00:15:06,866 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:15:06,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 153 events. 7/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 277 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2023-11-12 00:15:06,883 INFO L119 LiptonReduction]: Number of co-enabled transitions 5940 [2023-11-12 00:15:11,061 INFO L134 LiptonReduction]: Checked pairs total: 12016 [2023-11-12 00:15:11,062 INFO L136 LiptonReduction]: Total number of compositions: 178 [2023-11-12 00:15:11,072 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 43 transitions, 94 flow [2023-11-12 00:15:11,165 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1108 states, 954 states have (on average 3.270440251572327) internal successors, (3120), 1107 states have internal predecessors, (3120), 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) [2023-11-12 00:15:11,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:15:11,195 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;@472af205, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:15:11,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-11-12 00:15:11,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 1108 states, 954 states have (on average 3.270440251572327) internal successors, (3120), 1107 states have internal predecessors, (3120), 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) [2023-11-12 00:15:11,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-12 00:15:11,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:11,208 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-12 00:15:11,209 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-12 00:15:11,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:11,216 INFO L85 PathProgramCache]: Analyzing trace with hash 706, now seen corresponding path program 1 times [2023-11-12 00:15:11,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:11,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013187476] [2023-11-12 00:15:11,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:11,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:11,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:11,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:11,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013187476] [2023-11-12 00:15:11,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013187476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:11,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:11,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 00:15:11,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584045826] [2023-11-12 00:15:11,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:11,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:15:11,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:11,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:15:11,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:15:11,405 INFO L87 Difference]: Start difference. First operand has 1108 states, 954 states have (on average 3.270440251572327) internal successors, (3120), 1107 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-12 00:15:11,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:11,485 INFO L93 Difference]: Finished difference Result 408 states and 1066 transitions. [2023-11-12 00:15:11,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:15:11,488 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2023-11-12 00:15:11,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:11,508 INFO L225 Difference]: With dead ends: 408 [2023-11-12 00:15:11,508 INFO L226 Difference]: Without dead ends: 407 [2023-11-12 00:15:11,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:15:11,514 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:11,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:15:11,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-11-12 00:15:11,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2023-11-12 00:15:11,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 389 states have (on average 2.7326478149100257) internal successors, (1063), 406 states have internal predecessors, (1063), 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) [2023-11-12 00:15:11,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 1063 transitions. [2023-11-12 00:15:11,599 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 1063 transitions. Word has length 1 [2023-11-12 00:15:11,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:11,600 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 1063 transitions. [2023-11-12 00:15:11,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-12 00:15:11,600 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 1063 transitions. [2023-11-12 00:15:11,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:15:11,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:11,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 00:15:11,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:15:11,602 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-12 00:15:11,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:11,603 INFO L85 PathProgramCache]: Analyzing trace with hash 673268695, now seen corresponding path program 1 times [2023-11-12 00:15:11,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:11,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239912895] [2023-11-12 00:15:11,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:11,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:11,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:11,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:11,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239912895] [2023-11-12 00:15:11,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239912895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:11,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:11,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:15:11,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351967220] [2023-11-12 00:15:11,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:11,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:15:11,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:11,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:15:11,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:15:11,709 INFO L87 Difference]: Start difference. First operand 407 states and 1063 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-11-12 00:15:11,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:11,789 INFO L93 Difference]: Finished difference Result 423 states and 1101 transitions. [2023-11-12 00:15:11,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:15:11,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2023-11-12 00:15:11,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:11,795 INFO L225 Difference]: With dead ends: 423 [2023-11-12 00:15:11,795 INFO L226 Difference]: Without dead ends: 423 [2023-11-12 00:15:11,796 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 [2023-11-12 00:15:11,798 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:11,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 13 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:15:11,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-11-12 00:15:11,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2023-11-12 00:15:11,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 406 states have (on average 2.7118226600985222) internal successors, (1101), 422 states have internal predecessors, (1101), 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) [2023-11-12 00:15:11,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1101 transitions. [2023-11-12 00:15:11,885 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1101 transitions. Word has length 5 [2023-11-12 00:15:11,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:11,885 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 1101 transitions. [2023-11-12 00:15:11,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-11-12 00:15:11,886 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1101 transitions. [2023-11-12 00:15:11,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:15:11,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:11,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:11,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:15:11,887 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-12 00:15:11,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:11,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1528692154, now seen corresponding path program 1 times [2023-11-12 00:15:11,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:11,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574190409] [2023-11-12 00:15:11,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:11,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:11,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:11,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:11,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574190409] [2023-11-12 00:15:11,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574190409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:11,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:11,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:15:11,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921336746] [2023-11-12 00:15:11,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:11,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:15:11,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:11,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:15:11,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:15:11,972 INFO L87 Difference]: Start difference. First operand 423 states and 1101 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-12 00:15:12,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:12,040 INFO L93 Difference]: Finished difference Result 423 states and 1065 transitions. [2023-11-12 00:15:12,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:15:12,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-12 00:15:12,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:12,045 INFO L225 Difference]: With dead ends: 423 [2023-11-12 00:15:12,046 INFO L226 Difference]: Without dead ends: 423 [2023-11-12 00:15:12,047 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 [2023-11-12 00:15:12,051 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:12,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 11 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:15:12,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-11-12 00:15:12,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 399. [2023-11-12 00:15:12,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 385 states have (on average 2.6675324675324674) internal successors, (1027), 398 states have internal predecessors, (1027), 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) [2023-11-12 00:15:12,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 1027 transitions. [2023-11-12 00:15:12,104 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 1027 transitions. Word has length 7 [2023-11-12 00:15:12,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:12,104 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 1027 transitions. [2023-11-12 00:15:12,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-12 00:15:12,105 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 1027 transitions. [2023-11-12 00:15:12,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:15:12,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:12,107 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:12,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:15:12,108 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-12 00:15:12,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:12,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1426926335, now seen corresponding path program 1 times [2023-11-12 00:15:12,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:12,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430836983] [2023-11-12 00:15:12,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:12,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:15:12,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:15:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:15:12,214 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:15:12,215 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:15:12,216 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2023-11-12 00:15:12,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-11-12 00:15:12,219 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-11-12 00:15:12,219 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-11-12 00:15:12,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-11-12 00:15:12,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-11-12 00:15:12,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-11-12 00:15:12,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-11-12 00:15:12,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-11-12 00:15:12,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr1ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2023-11-12 00:15:12,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-11-12 00:15:12,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr3ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-11-12 00:15:12,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr4ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-11-12 00:15:12,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr5ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-11-12 00:15:12,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr6ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-11-12 00:15:12,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr7ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-11-12 00:15:12,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-11-12 00:15:12,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-11-12 00:15:12,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-11-12 00:15:12,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-11-12 00:15:12,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 36 remaining) [2023-11-12 00:15:12,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2023-11-12 00:15:12,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2023-11-12 00:15:12,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2023-11-12 00:15:12,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-11-12 00:15:12,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-11-12 00:15:12,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-11-12 00:15:12,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-11-12 00:15:12,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-11-12 00:15:12,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr1ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2023-11-12 00:15:12,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr2ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-11-12 00:15:12,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr3ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-11-12 00:15:12,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr4ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-11-12 00:15:12,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr5ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-11-12 00:15:12,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr6ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-11-12 00:15:12,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr7ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2023-11-12 00:15:12,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:15:12,245 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 00:15:12,247 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 00:15:12,247 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-12 00:15:12,305 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:15:12,311 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:15:12,311 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 220 places, 221 transitions, 462 flow [2023-11-12 00:15:12,311 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 220 places, 221 transitions, 462 flow [2023-11-12 00:15:12,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 221 transitions, 462 flow [2023-11-12 00:15:12,366 INFO L124 PetriNetUnfolderBase]: 12/215 cut-off events. [2023-11-12 00:15:12,366 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 00:15:12,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 215 events. 12/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 516 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 222. Up to 6 conditions per place. [2023-11-12 00:15:12,383 INFO L119 LiptonReduction]: Number of co-enabled transitions 14454 [2023-11-12 00:15:18,822 INFO L134 LiptonReduction]: Checked pairs total: 29135 [2023-11-12 00:15:18,822 INFO L136 LiptonReduction]: Total number of compositions: 259 [2023-11-12 00:15:18,824 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 68 transitions, 156 flow [2023-11-12 00:15:19,643 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 17347 states, 15970 states have (on average 4.192736380713838) internal successors, (66958), 17346 states have internal predecessors, (66958), 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) [2023-11-12 00:15:19,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:15:19,645 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;@472af205, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:15:19,645 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2023-11-12 00:15:19,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 17347 states, 15970 states have (on average 4.192736380713838) internal successors, (66958), 17346 states have internal predecessors, (66958), 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) [2023-11-12 00:15:19,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-12 00:15:19,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:19,852 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-12 00:15:19,852 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-12 00:15:19,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:19,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2023-11-12 00:15:19,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:19,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177143409] [2023-11-12 00:15:19,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:19,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:19,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:19,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:19,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177143409] [2023-11-12 00:15:19,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177143409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:19,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:19,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 00:15:19,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220977192] [2023-11-12 00:15:19,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:19,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:15:19,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:19,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:15:19,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:15:19,923 INFO L87 Difference]: Start difference. First operand has 17347 states, 15970 states have (on average 4.192736380713838) internal successors, (66958), 17346 states have internal predecessors, (66958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-12 00:15:20,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:20,029 INFO L93 Difference]: Finished difference Result 3011 states and 10875 transitions. [2023-11-12 00:15:20,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:15:20,035 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2023-11-12 00:15:20,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:20,076 INFO L225 Difference]: With dead ends: 3011 [2023-11-12 00:15:20,077 INFO L226 Difference]: Without dead ends: 3007 [2023-11-12 00:15:20,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:15:20,080 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:20,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:15:20,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2023-11-12 00:15:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 3007. [2023-11-12 00:15:20,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 2966 states have (on average 3.6608226567768036) internal successors, (10858), 3006 states have internal predecessors, (10858), 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) [2023-11-12 00:15:20,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 10858 transitions. [2023-11-12 00:15:20,338 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 10858 transitions. Word has length 1 [2023-11-12 00:15:20,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:20,339 INFO L495 AbstractCegarLoop]: Abstraction has 3007 states and 10858 transitions. [2023-11-12 00:15:20,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-12 00:15:20,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 10858 transitions. [2023-11-12 00:15:20,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:15:20,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:20,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 00:15:20,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:15:20,342 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-12 00:15:20,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:20,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1204267972, now seen corresponding path program 1 times [2023-11-12 00:15:20,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:20,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146499728] [2023-11-12 00:15:20,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:20,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:20,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:20,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:20,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146499728] [2023-11-12 00:15:20,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146499728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:20,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:20,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:15:20,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921908756] [2023-11-12 00:15:20,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:20,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:15:20,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:20,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:15:20,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:15:20,414 INFO L87 Difference]: Start difference. First operand 3007 states and 10858 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-11-12 00:15:20,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:20,541 INFO L93 Difference]: Finished difference Result 3226 states and 11656 transitions. [2023-11-12 00:15:20,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:15:20,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2023-11-12 00:15:20,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:20,580 INFO L225 Difference]: With dead ends: 3226 [2023-11-12 00:15:20,580 INFO L226 Difference]: Without dead ends: 3226 [2023-11-12 00:15:20,580 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 [2023-11-12 00:15:20,581 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:20,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 22 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:15:20,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2023-11-12 00:15:20,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3226. [2023-11-12 00:15:20,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3226 states, 3186 states have (on average 3.6585059635907093) internal successors, (11656), 3225 states have internal predecessors, (11656), 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) [2023-11-12 00:15:20,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3226 states to 3226 states and 11656 transitions. [2023-11-12 00:15:20,824 INFO L78 Accepts]: Start accepts. Automaton has 3226 states and 11656 transitions. Word has length 5 [2023-11-12 00:15:20,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:20,825 INFO L495 AbstractCegarLoop]: Abstraction has 3226 states and 11656 transitions. [2023-11-12 00:15:20,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-11-12 00:15:20,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3226 states and 11656 transitions. [2023-11-12 00:15:20,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:15:20,826 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:20,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:20,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:15:20,827 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-12 00:15:20,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:20,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1955503516, now seen corresponding path program 1 times [2023-11-12 00:15:20,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:20,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033758421] [2023-11-12 00:15:20,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:20,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:20,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:20,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:20,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033758421] [2023-11-12 00:15:20,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033758421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:20,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:20,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:15:20,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609640377] [2023-11-12 00:15:20,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:20,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:15:20,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:20,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:15:20,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:15:20,890 INFO L87 Difference]: Start difference. First operand 3226 states and 11656 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-12 00:15:21,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:21,042 INFO L93 Difference]: Finished difference Result 3468 states and 12064 transitions. [2023-11-12 00:15:21,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:15:21,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-12 00:15:21,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:21,087 INFO L225 Difference]: With dead ends: 3468 [2023-11-12 00:15:21,087 INFO L226 Difference]: Without dead ends: 3468 [2023-11-12 00:15:21,088 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 [2023-11-12 00:15:21,089 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 24 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:21,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 20 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:15:21,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2023-11-12 00:15:21,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 3117. [2023-11-12 00:15:21,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3081 states have (on average 3.6137617656604997) internal successors, (11134), 3116 states have internal predecessors, (11134), 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) [2023-11-12 00:15:21,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 11134 transitions. [2023-11-12 00:15:21,268 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 11134 transitions. Word has length 7 [2023-11-12 00:15:21,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:21,268 INFO L495 AbstractCegarLoop]: Abstraction has 3117 states and 11134 transitions. [2023-11-12 00:15:21,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-12 00:15:21,268 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 11134 transitions. [2023-11-12 00:15:21,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:15:21,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:21,270 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:21,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 00:15:21,271 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting BCSP_PnpAddErr3ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-12 00:15:21,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:21,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1667568326, now seen corresponding path program 1 times [2023-11-12 00:15:21,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:21,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470118446] [2023-11-12 00:15:21,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:21,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:21,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:15:21,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:15:21,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470118446] [2023-11-12 00:15:21,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470118446] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:21,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:21,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:15:21,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694069821] [2023-11-12 00:15:21,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:21,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:15:21,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:15:21,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:15:21,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:15:21,308 INFO L87 Difference]: Start difference. First operand 3117 states and 11134 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-12 00:15:21,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:21,496 INFO L93 Difference]: Finished difference Result 3294 states and 11127 transitions. [2023-11-12 00:15:21,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:15:21,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2023-11-12 00:15:21,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:21,556 INFO L225 Difference]: With dead ends: 3294 [2023-11-12 00:15:21,556 INFO L226 Difference]: Without dead ends: 3262 [2023-11-12 00:15:21,556 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 [2023-11-12 00:15:21,557 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 24 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:21,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 18 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:15:21,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2023-11-12 00:15:21,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 2643. [2023-11-12 00:15:21,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2618 states have (on average 3.533231474407945) internal successors, (9250), 2642 states have internal predecessors, (9250), 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) [2023-11-12 00:15:21,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 9250 transitions. [2023-11-12 00:15:21,692 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 9250 transitions. Word has length 9 [2023-11-12 00:15:21,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:21,693 INFO L495 AbstractCegarLoop]: Abstraction has 2643 states and 9250 transitions. [2023-11-12 00:15:21,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-12 00:15:21,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 9250 transitions. [2023-11-12 00:15:21,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:15:21,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:21,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:21,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 00:15:21,703 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-11-12 00:15:21,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:21,704 INFO L85 PathProgramCache]: Analyzing trace with hash -670589587, now seen corresponding path program 1 times [2023-11-12 00:15:21,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:15:21,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596820660] [2023-11-12 00:15:21,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:21,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:15:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:15:21,733 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:15:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:15:21,763 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:15:21,763 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:15:21,764 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (50 of 51 remaining) [2023-11-12 00:15:21,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2023-11-12 00:15:21,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2023-11-12 00:15:21,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2023-11-12 00:15:21,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2023-11-12 00:15:21,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2023-11-12 00:15:21,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (44 of 51 remaining) [2023-11-12 00:15:21,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2023-11-12 00:15:21,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr0ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2023-11-12 00:15:21,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr1ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2023-11-12 00:15:21,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr2ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2023-11-12 00:15:21,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr3ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2023-11-12 00:15:21,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr4ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2023-11-12 00:15:21,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr5ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2023-11-12 00:15:21,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr6ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2023-11-12 00:15:21,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr7ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2023-11-12 00:15:21,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2023-11-12 00:15:21,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2023-11-12 00:15:21,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2023-11-12 00:15:21,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2023-11-12 00:15:21,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 51 remaining) [2023-11-12 00:15:21,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 51 remaining) [2023-11-12 00:15:21,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2023-11-12 00:15:21,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2023-11-12 00:15:21,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2023-11-12 00:15:21,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2023-11-12 00:15:21,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2023-11-12 00:15:21,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2023-11-12 00:15:21,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2023-11-12 00:15:21,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2023-11-12 00:15:21,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (20 of 51 remaining) [2023-11-12 00:15:21,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (19 of 51 remaining) [2023-11-12 00:15:21,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (18 of 51 remaining) [2023-11-12 00:15:21,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2023-11-12 00:15:21,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2023-11-12 00:15:21,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr0ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2023-11-12 00:15:21,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr1ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2023-11-12 00:15:21,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr2ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2023-11-12 00:15:21,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr3ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2023-11-12 00:15:21,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr4ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2023-11-12 00:15:21,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr5ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2023-11-12 00:15:21,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr6ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2023-11-12 00:15:21,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr7ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2023-11-12 00:15:21,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr0ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2023-11-12 00:15:21,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr1ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2023-11-12 00:15:21,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr2ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2023-11-12 00:15:21,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr3ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2023-11-12 00:15:21,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr4ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2023-11-12 00:15:21,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr5ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2023-11-12 00:15:21,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr6ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2023-11-12 00:15:21,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr7ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2023-11-12 00:15:21,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 00:15:21,776 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 00:15:21,784 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-11-12 00:15:21,784 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:15:21,819 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated [2023-11-12 00:15:21,820 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-12 00:15:21,821 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-12 00:15:21,823 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-12 00:15:21,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:15:21 BasicIcfg [2023-11-12 00:15:21,834 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:15:21,835 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:15:21,835 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:15:21,835 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:15:21,836 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:15:06" (3/4) ... [2023-11-12 00:15:21,837 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:15:21,839 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:15:21,839 INFO L158 Benchmark]: Toolchain (without parser) took 16641.27ms. Allocated memory was 159.4MB in the beginning and 369.1MB in the end (delta: 209.7MB). Free memory was 126.3MB in the beginning and 190.1MB in the end (delta: -63.8MB). Peak memory consumption was 146.4MB. Max. memory is 16.1GB. [2023-11-12 00:15:21,840 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 111.1MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:15:21,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 607.56ms. Allocated memory is still 159.4MB. Free memory was 126.3MB in the beginning and 105.9MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 00:15:21,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.16ms. Allocated memory is still 159.4MB. Free memory was 105.9MB in the beginning and 103.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:15:21,841 INFO L158 Benchmark]: Boogie Preprocessor took 33.33ms. Allocated memory is still 159.4MB. Free memory was 103.8MB in the beginning and 102.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:15:21,841 INFO L158 Benchmark]: RCFGBuilder took 640.10ms. Allocated memory is still 159.4MB. Free memory was 102.1MB in the beginning and 78.0MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 00:15:21,842 INFO L158 Benchmark]: TraceAbstraction took 15293.04ms. Allocated memory was 159.4MB in the beginning and 369.1MB in the end (delta: 209.7MB). Free memory was 77.5MB in the beginning and 191.2MB in the end (delta: -113.7MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. [2023-11-12 00:15:21,843 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 369.1MB. Free memory was 191.2MB in the beginning and 190.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:15:21,845 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 111.1MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 607.56ms. Allocated memory is still 159.4MB. Free memory was 126.3MB in the beginning and 105.9MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.16ms. Allocated memory is still 159.4MB. Free memory was 105.9MB in the beginning and 103.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.33ms. Allocated memory is still 159.4MB. Free memory was 103.8MB in the beginning and 102.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 640.10ms. Allocated memory is still 159.4MB. Free memory was 102.1MB in the beginning and 78.0MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15293.04ms. Allocated memory was 159.4MB in the beginning and 369.1MB in the end (delta: 209.7MB). Free memory was 77.5MB in the beginning and 191.2MB in the end (delta: -113.7MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 369.1MB. Free memory was 191.2MB in the beginning and 190.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 142 PlacesBefore, 46 PlacesAfterwards, 142 TransitionsBefore, 43 TransitionsAfterwards, 5940 CoEnabledTransitionPairs, 9 FixpointIterations, 54 TrivialSequentialCompositions, 101 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 3 ChoiceCompositions, 178 TotalNumberOfCompositions, 12016 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7917, independent: 7689, independent conditional: 0, independent unconditional: 7689, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4520, independent: 4450, independent conditional: 0, independent unconditional: 4450, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4520, independent: 4347, independent conditional: 0, independent unconditional: 4347, dependent: 173, dependent conditional: 0, dependent unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 173, independent: 103, independent conditional: 0, independent unconditional: 103, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 359, independent: 142, independent conditional: 0, independent unconditional: 142, dependent: 218, dependent conditional: 0, dependent unconditional: 218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7917, independent: 3239, independent conditional: 0, independent unconditional: 3239, dependent: 158, dependent conditional: 0, dependent unconditional: 158, unknown: 4520, unknown conditional: 0, unknown unconditional: 4520] , Statistics on independence cache: Total cache size (in pairs): 266, Positive cache size: 247, Positive conditional cache size: 0, Positive unconditional cache size: 247, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.5s, 220 PlacesBefore, 74 PlacesAfterwards, 221 TransitionsBefore, 68 TransitionsAfterwards, 14454 CoEnabledTransitionPairs, 8 FixpointIterations, 96 TrivialSequentialCompositions, 126 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 27 ConcurrentYvCompositions, 7 ChoiceCompositions, 259 TotalNumberOfCompositions, 29135 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17942, independent: 17631, independent conditional: 0, independent unconditional: 17631, dependent: 311, dependent conditional: 0, dependent unconditional: 311, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10406, independent: 10291, independent conditional: 0, independent unconditional: 10291, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10406, independent: 10124, independent conditional: 0, independent unconditional: 10124, dependent: 282, dependent conditional: 0, dependent unconditional: 282, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 282, independent: 167, independent conditional: 0, independent unconditional: 167, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 514, independent: 181, independent conditional: 0, independent unconditional: 181, dependent: 333, dependent conditional: 0, dependent unconditional: 333, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 17942, independent: 7340, independent conditional: 0, independent unconditional: 7340, dependent: 196, dependent conditional: 0, dependent unconditional: 196, unknown: 10406, unknown conditional: 0, unknown unconditional: 10406] , Statistics on independence cache: Total cache size (in pairs): 499, Positive cache size: 473, Positive conditional cache size: 0, Positive unconditional cache size: 473, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 730]: Data race detected [2023-11-12 00:15:21,866 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated [2023-11-12 00:15:21,870 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-12 00:15:21,870 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-12 00:15:21,871 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-12 00:15:21,882 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated [2023-11-12 00:15:21,882 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-12 00:15:21,883 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-12 00:15:21,883 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated Data race detected The following path leads to a data race: [L697] 0 volatile int stoppingFlag; [L698] 0 volatile int pendingIo; [L699] 0 volatile int stoppingEvent; [L700] 0 volatile int stopped; [L737] 0 pthread_t t; [L738] 0 int i; [L739] 0 pendingIo = 1 [L740] 0 stoppingFlag = 0 [L741] 0 stoppingEvent = 0 [L742] 0 stopped = 0 [L743] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L730] 1 stoppingFlag = 1 VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L744] 0 i = 0 VAL [i=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1, t={3:0}] [L744] COND TRUE 0 i < 10 [L745] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpAdd, 0) VAL [i=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1, t={3:0}] [L721] 2 int status; [L722] CALL 2 BCSP_IoIncrement() [L703] 2 \read(stoppingFlag) [L703] 2 \read(stoppingFlag) [L703] COND TRUE 2 \read(stoppingFlag) [L705] 2 return -1; [L722] RET 2 BCSP_IoIncrement() [L730] 1 stoppingFlag = 1 VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] Now there is a data race on ~stoppingFlag~0 between C: if (stoppingFlag) { __VERIFIER_atomic_end(); return -1; } else { pendingIo = pendingIo + 1; } [703-708] and C: stoppingFlag = 1 [730] - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 733]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 740]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 742]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 743]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 745]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 212 locations, 36 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 21 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1108occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 286 locations, 51 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 232 IncrementalHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 49 mSDtfsCounter, 232 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17347occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 970 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-12 00:15:21,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c0ab5c8-ada2-4e0a-a5ea-92531ea0cc5b/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE