./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 0e0057cc 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_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ad14026eba5b252f16e1e7c5b06294a08c72d8fedf1d2cbda596d8ea988add3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:57:30,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:57:30,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-24 23:57:30,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:57:30,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:57:30,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:57:30,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:57:30,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:57:30,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:57:30,821 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:57:30,822 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:57:30,823 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:57:30,823 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:57:30,824 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:57:30,824 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:57:30,825 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:57:30,825 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:57:30,826 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:57:30,826 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:57:30,827 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:57:30,827 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:57:30,828 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:57:30,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:57:30,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:57:30,830 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:57:30,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:57:30,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:57:30,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:57:30,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:57:30,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:57:30,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:57:30,833 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-24 23:57:30,833 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:57:30,833 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:57:30,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:57:30,834 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:57:30,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:57:30,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:57:30,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:57:30,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:57:30,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:57:30,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:57:30,837 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:57:30,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:57:30,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:57:30,838 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:57:30,838 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:57:30,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:57:30,838 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_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ad14026eba5b252f16e1e7c5b06294a08c72d8fedf1d2cbda596d8ea988add3 [2023-11-24 23:57:31,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:57:31,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:57:31,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:57:31,216 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:57:31,216 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:57:31,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/pthread-lit/qw2004_variant.i [2023-11-24 23:57:34,333 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:57:34,684 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:57:34,685 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/sv-benchmarks/c/pthread-lit/qw2004_variant.i [2023-11-24 23:57:34,710 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/data/11bdc0132/c80afa81adb342e4a11e44047d052102/FLAGdee46f08f [2023-11-24 23:57:34,726 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/data/11bdc0132/c80afa81adb342e4a11e44047d052102 [2023-11-24 23:57:34,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:57:34,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:57:34,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:57:34,740 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:57:34,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:57:34,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:57:34" (1/1) ... [2023-11-24 23:57:34,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70850b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:34, skipping insertion in model container [2023-11-24 23:57:34,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:57:34" (1/1) ... [2023-11-24 23:57:34,819 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:57:35,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:57:35,227 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:57:35,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:57:35,351 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:57:35,351 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:57:35,359 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:57:35,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:35 WrapperNode [2023-11-24 23:57:35,360 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:57:35,361 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:57:35,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:57:35,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:57:35,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:35" (1/1) ... [2023-11-24 23:57:35,399 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:35" (1/1) ... [2023-11-24 23:57:35,428 INFO L138 Inliner]: procedures = 174, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 157 [2023-11-24 23:57:35,429 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:57:35,430 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:57:35,430 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:57:35,430 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:57:35,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:35" (1/1) ... [2023-11-24 23:57:35,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:35" (1/1) ... [2023-11-24 23:57:35,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:35" (1/1) ... [2023-11-24 23:57:35,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:35" (1/1) ... [2023-11-24 23:57:35,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:35" (1/1) ... [2023-11-24 23:57:35,455 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:35" (1/1) ... [2023-11-24 23:57:35,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:35" (1/1) ... [2023-11-24 23:57:35,474 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:35" (1/1) ... [2023-11-24 23:57:35,477 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:57:35,478 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:57:35,478 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:57:35,478 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:57:35,479 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:35" (1/1) ... [2023-11-24 23:57:35,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:57:35,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:57:35,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:57:35,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:57:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2023-11-24 23:57:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2023-11-24 23:57:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:57:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 23:57:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:57:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:57:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:57:35,565 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpAdd [2023-11-24 23:57:35,565 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpAdd [2023-11-24 23:57:35,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:57:35,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 23:57:35,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:57:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:57:35,567 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 23:57:35,775 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:57:35,778 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:57:36,181 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:57:36,284 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:57:36,284 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:57:36,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:57:36 BoogieIcfgContainer [2023-11-24 23:57:36,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:57:36,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:57:36,289 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:57:36,292 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:57:36,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:57:34" (1/3) ... [2023-11-24 23:57:36,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d03b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:57:36, skipping insertion in model container [2023-11-24 23:57:36,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:35" (2/3) ... [2023-11-24 23:57:36,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d03b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:57:36, skipping insertion in model container [2023-11-24 23:57:36,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:57:36" (3/3) ... [2023-11-24 23:57:36,296 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004_variant.i [2023-11-24 23:57:36,305 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 23:57:36,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:57:36,318 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-11-24 23:57:36,318 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 23:57:36,371 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-24 23:57:36,404 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 142 places, 142 transitions, 292 flow [2023-11-24 23:57:37,454 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 24751 states, 24597 states have (on average 3.0682197015896246) internal successors, (75469), 24750 states have internal predecessors, (75469), 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) [2023-11-24 23:57:37,472 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:57:37,479 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;@61dc098, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:57:37,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-11-24 23:57:37,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 24751 states, 24597 states have (on average 3.0682197015896246) internal successors, (75469), 24750 states have internal predecessors, (75469), 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) [2023-11-24 23:57:37,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 23:57:37,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:37,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:37,544 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-24 23:57:37,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:37,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1960888255, now seen corresponding path program 1 times [2023-11-24 23:57:37,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:37,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465365192] [2023-11-24 23:57:37,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:37,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:37,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:37,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:37,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465365192] [2023-11-24 23:57:37,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465365192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:37,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:37,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:57:37,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534622450] [2023-11-24 23:57:37,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:37,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:37,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:37,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:37,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:37,929 INFO L87 Difference]: Start difference. First operand has 24751 states, 24597 states have (on average 3.0682197015896246) internal successors, (75469), 24750 states have internal predecessors, (75469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:38,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:38,412 INFO L93 Difference]: Finished difference Result 16518 states and 48087 transitions. [2023-11-24 23:57:38,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:57:38,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-24 23:57:38,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:38,691 INFO L225 Difference]: With dead ends: 16518 [2023-11-24 23:57:38,691 INFO L226 Difference]: Without dead ends: 16098 [2023-11-24 23:57:38,708 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 [2023-11-24 23:57:38,712 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 1 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:38,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 225 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:57:38,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16098 states. [2023-11-24 23:57:39,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16098 to 16098. [2023-11-24 23:57:39,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16098 states, 16066 states have (on average 2.9146645089007843) internal successors, (46827), 16097 states have internal predecessors, (46827), 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) [2023-11-24 23:57:39,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16098 states to 16098 states and 46827 transitions. [2023-11-24 23:57:39,647 INFO L78 Accepts]: Start accepts. Automaton has 16098 states and 46827 transitions. Word has length 18 [2023-11-24 23:57:39,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:39,648 INFO L495 AbstractCegarLoop]: Abstraction has 16098 states and 46827 transitions. [2023-11-24 23:57:39,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:39,650 INFO L276 IsEmpty]: Start isEmpty. Operand 16098 states and 46827 transitions. [2023-11-24 23:57:39,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 23:57:39,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:39,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:39,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:57:39,653 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-24 23:57:39,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:39,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2014302925, now seen corresponding path program 1 times [2023-11-24 23:57:39,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:39,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936995036] [2023-11-24 23:57:39,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:39,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:39,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:39,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:39,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936995036] [2023-11-24 23:57:39,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936995036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:39,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:39,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:57:39,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114537146] [2023-11-24 23:57:39,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:39,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:39,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:39,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:39,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:39,757 INFO L87 Difference]: Start difference. First operand 16098 states and 46827 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-24 23:57:40,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:40,109 INFO L93 Difference]: Finished difference Result 16097 states and 46826 transitions. [2023-11-24 23:57:40,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:57:40,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2023-11-24 23:57:40,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:40,185 INFO L225 Difference]: With dead ends: 16097 [2023-11-24 23:57:40,186 INFO L226 Difference]: Without dead ends: 16097 [2023-11-24 23:57:40,186 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 [2023-11-24 23:57:40,188 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 1 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:40,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 220 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:57:40,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16097 states. [2023-11-24 23:57:40,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16097 to 16097. [2023-11-24 23:57:40,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16097 states, 16066 states have (on average 2.9146022656541763) internal successors, (46826), 16096 states have internal predecessors, (46826), 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) [2023-11-24 23:57:41,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16097 states to 16097 states and 46826 transitions. [2023-11-24 23:57:41,096 INFO L78 Accepts]: Start accepts. Automaton has 16097 states and 46826 transitions. Word has length 23 [2023-11-24 23:57:41,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:41,096 INFO L495 AbstractCegarLoop]: Abstraction has 16097 states and 46826 transitions. [2023-11-24 23:57:41,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-24 23:57:41,099 INFO L276 IsEmpty]: Start isEmpty. Operand 16097 states and 46826 transitions. [2023-11-24 23:57:41,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 23:57:41,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:41,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:41,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:57:41,101 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-24 23:57:41,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:41,103 INFO L85 PathProgramCache]: Analyzing trace with hash 585284650, now seen corresponding path program 1 times [2023-11-24 23:57:41,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:41,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328120232] [2023-11-24 23:57:41,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:41,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:41,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:41,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:41,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328120232] [2023-11-24 23:57:41,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328120232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:41,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:41,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:57:41,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785812560] [2023-11-24 23:57:41,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:41,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:41,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:41,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:41,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:41,178 INFO L87 Difference]: Start difference. First operand 16097 states and 46826 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:41,349 INFO L93 Difference]: Finished difference Result 16096 states and 46825 transitions. [2023-11-24 23:57:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:57:41,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-11-24 23:57:41,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:41,428 INFO L225 Difference]: With dead ends: 16096 [2023-11-24 23:57:41,428 INFO L226 Difference]: Without dead ends: 16096 [2023-11-24 23:57:41,429 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 [2023-11-24 23:57:41,430 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 1 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:41,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 218 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:57:41,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16096 states. [2023-11-24 23:57:42,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16096 to 16096. [2023-11-24 23:57:42,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16096 states, 16066 states have (on average 2.914540022407569) internal successors, (46825), 16095 states have internal predecessors, (46825), 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) [2023-11-24 23:57:42,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16096 states to 16096 states and 46825 transitions. [2023-11-24 23:57:42,258 INFO L78 Accepts]: Start accepts. Automaton has 16096 states and 46825 transitions. Word has length 28 [2023-11-24 23:57:42,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:42,259 INFO L495 AbstractCegarLoop]: Abstraction has 16096 states and 46825 transitions. [2023-11-24 23:57:42,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:42,259 INFO L276 IsEmpty]: Start isEmpty. Operand 16096 states and 46825 transitions. [2023-11-24 23:57:42,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-24 23:57:42,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:42,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:42,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:57:42,261 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-24 23:57:42,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:42,262 INFO L85 PathProgramCache]: Analyzing trace with hash -2008223221, now seen corresponding path program 1 times [2023-11-24 23:57:42,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:42,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085942901] [2023-11-24 23:57:42,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:42,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:42,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:42,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:42,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085942901] [2023-11-24 23:57:42,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085942901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:42,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:42,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:57:42,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534890559] [2023-11-24 23:57:42,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:42,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:42,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:42,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:42,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:42,350 INFO L87 Difference]: Start difference. First operand 16096 states and 46825 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-24 23:57:42,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:42,487 INFO L93 Difference]: Finished difference Result 16095 states and 46824 transitions. [2023-11-24 23:57:42,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:57:42,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2023-11-24 23:57:42,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:42,736 INFO L225 Difference]: With dead ends: 16095 [2023-11-24 23:57:42,736 INFO L226 Difference]: Without dead ends: 16095 [2023-11-24 23:57:42,737 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 [2023-11-24 23:57:42,738 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:42,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 213 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:57:42,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16095 states. [2023-11-24 23:57:43,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16095 to 16095. [2023-11-24 23:57:43,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16095 states, 16066 states have (on average 2.914477779160961) internal successors, (46824), 16094 states have internal predecessors, (46824), 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) [2023-11-24 23:57:43,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16095 states to 16095 states and 46824 transitions. [2023-11-24 23:57:43,381 INFO L78 Accepts]: Start accepts. Automaton has 16095 states and 46824 transitions. Word has length 33 [2023-11-24 23:57:43,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:43,382 INFO L495 AbstractCegarLoop]: Abstraction has 16095 states and 46824 transitions. [2023-11-24 23:57:43,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-24 23:57:43,382 INFO L276 IsEmpty]: Start isEmpty. Operand 16095 states and 46824 transitions. [2023-11-24 23:57:43,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:57:43,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:43,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:43,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:57:43,385 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-24 23:57:43,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:43,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1706788547, now seen corresponding path program 1 times [2023-11-24 23:57:43,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:43,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814454652] [2023-11-24 23:57:43,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:43,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:43,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:43,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:43,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814454652] [2023-11-24 23:57:43,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814454652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:43,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:43,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:57:43,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839381936] [2023-11-24 23:57:43,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:43,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:43,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:43,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:43,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:43,483 INFO L87 Difference]: Start difference. First operand 16095 states and 46824 transitions. Second operand has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:43,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:43,818 INFO L93 Difference]: Finished difference Result 16926 states and 49267 transitions. [2023-11-24 23:57:43,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:57:43,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2023-11-24 23:57:43,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:43,896 INFO L225 Difference]: With dead ends: 16926 [2023-11-24 23:57:43,896 INFO L226 Difference]: Without dead ends: 16926 [2023-11-24 23:57:43,897 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 [2023-11-24 23:57:43,899 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 52 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:43,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 267 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:57:43,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16926 states. [2023-11-24 23:57:44,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16926 to 16458. [2023-11-24 23:57:44,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16458 states, 16430 states have (on average 2.91472915398661) internal successors, (47889), 16457 states have internal predecessors, (47889), 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) [2023-11-24 23:57:44,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16458 states to 16458 states and 47889 transitions. [2023-11-24 23:57:44,673 INFO L78 Accepts]: Start accepts. Automaton has 16458 states and 47889 transitions. Word has length 43 [2023-11-24 23:57:44,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:44,674 INFO L495 AbstractCegarLoop]: Abstraction has 16458 states and 47889 transitions. [2023-11-24 23:57:44,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 16458 states and 47889 transitions. [2023-11-24 23:57:44,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-24 23:57:44,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:44,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:44,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:57:44,678 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-24 23:57:44,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:44,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1894799423, now seen corresponding path program 1 times [2023-11-24 23:57:44,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:44,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248646701] [2023-11-24 23:57:44,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:44,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:44,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:44,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248646701] [2023-11-24 23:57:44,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248646701] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:44,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:44,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:57:44,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669866907] [2023-11-24 23:57:44,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:44,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:44,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:44,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:44,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:44,784 INFO L87 Difference]: Start difference. First operand 16458 states and 47889 transitions. Second operand has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-11-24 23:57:44,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:44,942 INFO L93 Difference]: Finished difference Result 17041 states and 49233 transitions. [2023-11-24 23:57:44,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:57:44,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2023-11-24 23:57:44,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:45,015 INFO L225 Difference]: With dead ends: 17041 [2023-11-24 23:57:45,016 INFO L226 Difference]: Without dead ends: 17041 [2023-11-24 23:57:45,016 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 [2023-11-24 23:57:45,019 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 68 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:45,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 269 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:57:45,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17041 states. [2023-11-24 23:57:45,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17041 to 16029. [2023-11-24 23:57:45,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16029 states, 16006 states have (on average 2.9105335499187803) internal successors, (46586), 16028 states have internal predecessors, (46586), 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) [2023-11-24 23:57:45,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16029 states to 16029 states and 46586 transitions. [2023-11-24 23:57:45,751 INFO L78 Accepts]: Start accepts. Automaton has 16029 states and 46586 transitions. Word has length 49 [2023-11-24 23:57:45,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:45,752 INFO L495 AbstractCegarLoop]: Abstraction has 16029 states and 46586 transitions. [2023-11-24 23:57:45,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-11-24 23:57:45,752 INFO L276 IsEmpty]: Start isEmpty. Operand 16029 states and 46586 transitions. [2023-11-24 23:57:45,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-24 23:57:45,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:45,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:45,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:57:45,757 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-24 23:57:45,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:45,758 INFO L85 PathProgramCache]: Analyzing trace with hash -2108784800, now seen corresponding path program 1 times [2023-11-24 23:57:45,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:45,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947799303] [2023-11-24 23:57:45,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:45,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:57:45,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:57:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:57:45,814 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:57:45,814 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:57:45,815 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2023-11-24 23:57:45,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-11-24 23:57:45,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-11-24 23:57:45,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-11-24 23:57:45,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-11-24 23:57:45,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-11-24 23:57:45,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-11-24 23:57:45,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-11-24 23:57:45,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-11-24 23:57:45,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr1ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2023-11-24 23:57:45,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-11-24 23:57:45,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr3ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-11-24 23:57:45,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr4ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-11-24 23:57:45,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr5ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-11-24 23:57:45,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr6ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-11-24 23:57:45,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr7ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-11-24 23:57:45,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-11-24 23:57:45,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-11-24 23:57:45,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-11-24 23:57:45,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-11-24 23:57:45,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 36 remaining) [2023-11-24 23:57:45,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2023-11-24 23:57:45,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2023-11-24 23:57:45,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2023-11-24 23:57:45,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-11-24 23:57:45,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-11-24 23:57:45,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-11-24 23:57:45,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-11-24 23:57:45,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-11-24 23:57:45,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr1ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2023-11-24 23:57:45,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr2ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-11-24 23:57:45,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr3ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-11-24 23:57:45,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr4ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-11-24 23:57:45,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr5ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-11-24 23:57:45,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr6ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-11-24 23:57:45,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr7ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2023-11-24 23:57:45,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 23:57:45,828 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:45,834 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-24 23:57:45,835 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:57:45,868 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated [2023-11-24 23:57:45,869 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-24 23:57:45,870 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-24 23:57:45,871 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-24 23:57:45,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:57:45 BasicIcfg [2023-11-24 23:57:45,878 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:57:45,878 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:57:45,878 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:57:45,879 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:57:45,879 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:57:36" (3/4) ... [2023-11-24 23:57:45,881 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:57:45,882 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:57:45,883 INFO L158 Benchmark]: Toolchain (without parser) took 11148.05ms. Allocated memory was 119.5MB in the beginning and 4.8GB in the end (delta: 4.7GB). Free memory was 82.5MB in the beginning and 4.3GB in the end (delta: -4.2GB). Peak memory consumption was 500.8MB. Max. memory is 16.1GB. [2023-11-24 23:57:45,883 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:57:45,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 620.00ms. Allocated memory is still 119.5MB. Free memory was 82.5MB in the beginning and 62.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-24 23:57:45,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.17ms. Allocated memory is still 119.5MB. Free memory was 62.1MB in the beginning and 59.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:57:45,884 INFO L158 Benchmark]: Boogie Preprocessor took 47.63ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 59.7MB in the beginning and 114.5MB in the end (delta: -54.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2023-11-24 23:57:45,884 INFO L158 Benchmark]: RCFGBuilder took 808.48ms. Allocated memory is still 144.7MB. Free memory was 114.5MB in the beginning and 92.7MB in the end (delta: 21.8MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2023-11-24 23:57:45,885 INFO L158 Benchmark]: TraceAbstraction took 9589.09ms. Allocated memory was 144.7MB in the beginning and 4.8GB in the end (delta: 4.7GB). Free memory was 91.9MB in the beginning and 4.3GB in the end (delta: -4.2GB). Peak memory consumption was 483.2MB. Max. memory is 16.1GB. [2023-11-24 23:57:45,885 INFO L158 Benchmark]: Witness Printer took 3.86ms. Allocated memory is still 4.8GB. Free memory is still 4.3GB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:57:45,887 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 620.00ms. Allocated memory is still 119.5MB. Free memory was 82.5MB in the beginning and 62.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.17ms. Allocated memory is still 119.5MB. Free memory was 62.1MB in the beginning and 59.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.63ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 59.7MB in the beginning and 114.5MB in the end (delta: -54.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * RCFGBuilder took 808.48ms. Allocated memory is still 144.7MB. Free memory was 114.5MB in the beginning and 92.7MB in the end (delta: 21.8MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9589.09ms. Allocated memory was 144.7MB in the beginning and 4.8GB in the end (delta: 4.7GB). Free memory was 91.9MB in the beginning and 4.3GB in the end (delta: -4.2GB). Peak memory consumption was 483.2MB. Max. memory is 16.1GB. * Witness Printer took 3.86ms. Allocated memory is still 4.8GB. Free memory is still 4.3GB. 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: 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 [2023-11-24 23:57:45,917 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated [2023-11-24 23:57:45,917 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-24 23:57:45,917 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-24 23:57:45,918 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-24 23:57:45,945 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated [2023-11-24 23:57:45,946 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-24 23:57:45,949 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-24 23:57:45,950 WARN L1572 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; VAL [stoppingFlag=0] [L698] 0 volatile int pendingIo; VAL [pendingIo=0, stoppingFlag=0] [L699] 0 volatile int stoppingEvent; VAL [pendingIo=0, stoppingEvent=0, stoppingFlag=0] [L700] 0 volatile int stopped; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0] [L737] 0 pthread_t t; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L738] 0 int i; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L739] 0 pendingIo = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L740] 0 stoppingFlag = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L741] 0 stoppingEvent = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L742] 0 stopped = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [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 VAL [i=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1, t={3:0}] [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) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [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: 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. - 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 212 locations, 36 error locations. Started 1 CEGAR loops. OverallTime: 9.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 1412 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 636 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 125 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 776 mSDtfsCounter, 125 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24751occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 1480 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2023-11-24 23:57:45,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3000cab-f7ef-4b4c-99a4-62b5ae91b767/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE