./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --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 30be2d02c76302b32ef0f3489a863fd4dd7369a786303f9fa3ce3f9985de18bf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:53:16,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:53:16,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:53:16,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:53:16,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:53:16,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:53:16,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:53:16,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:53:16,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:53:16,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:53:16,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:53:16,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:53:16,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:53:16,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:53:16,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:53:16,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:53:16,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:53:16,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:53:16,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:53:16,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:53:16,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:53:16,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:53:16,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:53:16,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:53:16,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:53:16,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:53:16,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:53:16,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:53:16,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:53:16,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:53:16,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:53:16,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:53:16,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:53:16,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:53:16,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:53:16,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:53:16,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:53:16,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:53:16,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:53:16,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:53:16,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:53:16,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 15:53:16,178 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:53:16,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:53:16,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:53:16,179 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:53:16,179 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:53:16,179 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:53:16,180 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:53:16,180 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:53:16,180 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:53:16,186 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:53:16,186 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:53:16,186 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:53:16,186 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:53:16,186 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:53:16,187 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:53:16,187 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:53:16,187 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:53:16,187 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:53:16,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:53:16,188 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:53:16,188 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:53:16,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:53:16,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:53:16,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:53:16,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:53:16,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:53:16,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:53:16,189 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 15:53:16,190 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:53:16,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:53:16,190 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:53:16,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:53:16,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:53:16,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:53:16,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:53:16,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:53:16,191 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:53:16,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:53:16,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:53:16,192 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:53:16,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:53:16,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:53:16,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:53:16,193 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30be2d02c76302b32ef0f3489a863fd4dd7369a786303f9fa3ce3f9985de18bf [2022-12-14 15:53:16,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:53:16,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:53:16,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:53:16,402 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:53:16,402 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:53:16,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-atomic/szymanski-b.i [2022-12-14 15:53:19,011 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:53:19,226 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:53:19,227 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/sv-benchmarks/c/pthread-atomic/szymanski-b.i [2022-12-14 15:53:19,240 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/data/672409388/9324dc2d3c3f462ba364c9fe1bb31e59/FLAG3601d67ce [2022-12-14 15:53:19,252 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/data/672409388/9324dc2d3c3f462ba364c9fe1bb31e59 [2022-12-14 15:53:19,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:53:19,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:53:19,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:53:19,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:53:19,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:53:19,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:53:19" (1/1) ... [2022-12-14 15:53:19,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34cb4e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19, skipping insertion in model container [2022-12-14 15:53:19,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:53:19" (1/1) ... [2022-12-14 15:53:19,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:53:19,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:53:19,554 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30088,30101] [2022-12-14 15:53:19,557 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30375,30388] [2022-12-14 15:53:19,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:53:19,570 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:53:19,596 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30088,30101] [2022-12-14 15:53:19,598 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30375,30388] [2022-12-14 15:53:19,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:53:19,624 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:53:19,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19 WrapperNode [2022-12-14 15:53:19,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:53:19,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:53:19,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:53:19,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:53:19,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19" (1/1) ... [2022-12-14 15:53:19,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19" (1/1) ... [2022-12-14 15:53:19,656 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-12-14 15:53:19,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:53:19,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:53:19,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:53:19,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:53:19,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19" (1/1) ... [2022-12-14 15:53:19,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19" (1/1) ... [2022-12-14 15:53:19,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19" (1/1) ... [2022-12-14 15:53:19,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19" (1/1) ... [2022-12-14 15:53:19,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19" (1/1) ... [2022-12-14 15:53:19,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19" (1/1) ... [2022-12-14 15:53:19,677 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19" (1/1) ... [2022-12-14 15:53:19,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19" (1/1) ... [2022-12-14 15:53:19,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:53:19,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:53:19,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:53:19,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:53:19,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19" (1/1) ... [2022-12-14 15:53:19,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:53:19,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:53:19,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:53:19,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:53:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:53:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-14 15:53:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-14 15:53:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-14 15:53:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-14 15:53:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:53:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:53:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:53:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:53:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:53:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:53:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:53:19,739 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 15:53:19,847 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:53:19,849 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:53:20,088 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:53:20,096 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:53:20,096 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-14 15:53:20,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:53:20 BoogieIcfgContainer [2022-12-14 15:53:20,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:53:20,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:53:20,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:53:20,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:53:20,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:53:19" (1/3) ... [2022-12-14 15:53:20,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e841e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:53:20, skipping insertion in model container [2022-12-14 15:53:20,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:19" (2/3) ... [2022-12-14 15:53:20,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e841e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:53:20, skipping insertion in model container [2022-12-14 15:53:20,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:53:20" (3/3) ... [2022-12-14 15:53:20,107 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski-b.i [2022-12-14 15:53:20,116 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 15:53:20,125 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:53:20,126 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-12-14 15:53:20,126 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 15:53:20,204 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 15:53:20,233 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 15:53:20,245 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 225 transitions, 466 flow [2022-12-14 15:53:20,247 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 225 transitions, 466 flow [2022-12-14 15:53:20,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 225 transitions, 466 flow [2022-12-14 15:53:20,324 INFO L130 PetriNetUnfolder]: 22/223 cut-off events. [2022-12-14 15:53:20,324 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 15:53:20,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 223 events. 22/223 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 504 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 187. Up to 3 conditions per place. [2022-12-14 15:53:20,339 INFO L119 LiptonReduction]: Number of co-enabled transitions 19656 [2022-12-14 15:53:22,454 INFO L134 LiptonReduction]: Checked pairs total: 83495 [2022-12-14 15:53:22,455 INFO L136 LiptonReduction]: Total number of compositions: 116 [2022-12-14 15:53:22,460 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 122 places, 137 transitions, 290 flow [2022-12-14 15:53:22,647 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8373 states, 7968 states have (on average 3.1779618473895583) internal successors, (25322), 8372 states have internal predecessors, (25322), 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) [2022-12-14 15:53:22,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:53:22,667 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=LoopsAndPotentialCycles, 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;@807cce0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:53:22,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-12-14 15:53:22,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 8373 states, 7968 states have (on average 3.1779618473895583) internal successors, (25322), 8372 states have internal predecessors, (25322), 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) [2022-12-14 15:53:22,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 15:53:22,687 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:53:22,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 15:53:22,689 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-12-14 15:53:22,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:53:22,693 INFO L85 PathProgramCache]: Analyzing trace with hash 818186620, now seen corresponding path program 1 times [2022-12-14 15:53:22,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:53:22,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890241247] [2022-12-14 15:53:22,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:53:22,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:53:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:53:22,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:53:22,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:53:22,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890241247] [2022-12-14 15:53:22,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890241247] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:53:22,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:53:22,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 15:53:22,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078117367] [2022-12-14 15:53:22,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:53:22,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:53:22,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:53:22,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:53:22,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:53:22,890 INFO L87 Difference]: Start difference. First operand has 8373 states, 7968 states have (on average 3.1779618473895583) internal successors, (25322), 8372 states have internal predecessors, (25322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:53:23,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:53:23,010 INFO L93 Difference]: Finished difference Result 5617 states and 14996 transitions. [2022-12-14 15:53:23,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:53:23,013 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 15:53:23,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:53:23,050 INFO L225 Difference]: With dead ends: 5617 [2022-12-14 15:53:23,051 INFO L226 Difference]: Without dead ends: 5614 [2022-12-14 15:53:23,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:53:23,054 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:53:23,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:53:23,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5614 states. [2022-12-14 15:53:23,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5614 to 5614. [2022-12-14 15:53:23,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5614 states, 5419 states have (on average 2.7660084886510425) internal successors, (14989), 5613 states have internal predecessors, (14989), 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) [2022-12-14 15:53:23,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5614 states to 5614 states and 14989 transitions. [2022-12-14 15:53:23,280 INFO L78 Accepts]: Start accepts. Automaton has 5614 states and 14989 transitions. Word has length 5 [2022-12-14 15:53:23,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:53:23,280 INFO L495 AbstractCegarLoop]: Abstraction has 5614 states and 14989 transitions. [2022-12-14 15:53:23,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:53:23,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5614 states and 14989 transitions. [2022-12-14 15:53:23,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 15:53:23,281 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:53:23,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 15:53:23,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:53:23,281 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-12-14 15:53:23,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:53:23,282 INFO L85 PathProgramCache]: Analyzing trace with hash 818148230, now seen corresponding path program 1 times [2022-12-14 15:53:23,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:53:23,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142946418] [2022-12-14 15:53:23,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:53:23,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:53:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:53:23,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:53:23,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:53:23,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142946418] [2022-12-14 15:53:23,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142946418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:53:23,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:53:23,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:53:23,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847137953] [2022-12-14 15:53:23,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:53:23,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:53:23,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:53:23,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:53:23,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:53:23,338 INFO L87 Difference]: Start difference. First operand 5614 states and 14989 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:53:23,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:53:23,498 INFO L93 Difference]: Finished difference Result 5700 states and 15215 transitions. [2022-12-14 15:53:23,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:53:23,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 15:53:23,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:53:23,531 INFO L225 Difference]: With dead ends: 5700 [2022-12-14 15:53:23,532 INFO L226 Difference]: Without dead ends: 5700 [2022-12-14 15:53:23,532 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 [2022-12-14 15:53:23,533 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 54 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:53:23,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 163 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:53:23,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-12-14 15:53:23,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2022-12-14 15:53:23,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5506 states have (on average 2.7633490737377406) internal successors, (15215), 5699 states have internal predecessors, (15215), 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) [2022-12-14 15:53:23,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 15215 transitions. [2022-12-14 15:53:23,725 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 15215 transitions. Word has length 5 [2022-12-14 15:53:23,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:53:23,725 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 15215 transitions. [2022-12-14 15:53:23,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:53:23,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 15215 transitions. [2022-12-14 15:53:23,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:53:23,726 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:53:23,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:53:23,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:53:23,727 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-12-14 15:53:23,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:53:23,727 INFO L85 PathProgramCache]: Analyzing trace with hash 298303795, now seen corresponding path program 1 times [2022-12-14 15:53:23,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:53:23,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552383037] [2022-12-14 15:53:23,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:53:23,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:53:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:53:23,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:53:23,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:53:23,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552383037] [2022-12-14 15:53:23,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552383037] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:53:23,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:53:23,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:53:23,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850177701] [2022-12-14 15:53:23,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:53:23,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:53:23,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:53:23,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:53:23,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:53:23,771 INFO L87 Difference]: Start difference. First operand 5700 states and 15215 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:53:23,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:53:23,904 INFO L93 Difference]: Finished difference Result 5792 states and 15454 transitions. [2022-12-14 15:53:23,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:53:23,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 15:53:23,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:53:23,949 INFO L225 Difference]: With dead ends: 5792 [2022-12-14 15:53:23,949 INFO L226 Difference]: Without dead ends: 5792 [2022-12-14 15:53:23,950 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 [2022-12-14 15:53:23,951 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 53 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:53:23,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 162 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:53:23,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5792 states. [2022-12-14 15:53:24,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5792 to 5792. [2022-12-14 15:53:24,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5792 states, 5598 states have (on average 2.760628795998571) internal successors, (15454), 5791 states have internal predecessors, (15454), 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) [2022-12-14 15:53:24,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5792 states to 5792 states and 15454 transitions. [2022-12-14 15:53:24,140 INFO L78 Accepts]: Start accepts. Automaton has 5792 states and 15454 transitions. Word has length 7 [2022-12-14 15:53:24,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:53:24,141 INFO L495 AbstractCegarLoop]: Abstraction has 5792 states and 15454 transitions. [2022-12-14 15:53:24,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:53:24,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5792 states and 15454 transitions. [2022-12-14 15:53:24,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:53:24,141 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:53:24,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:53:24,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:53:24,142 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-12-14 15:53:24,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:53:24,142 INFO L85 PathProgramCache]: Analyzing trace with hash 261591607, now seen corresponding path program 1 times [2022-12-14 15:53:24,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:53:24,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126174464] [2022-12-14 15:53:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:53:24,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:53:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:53:24,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:53:24,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:53:24,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126174464] [2022-12-14 15:53:24,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126174464] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:53:24,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:53:24,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:53:24,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527754650] [2022-12-14 15:53:24,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:53:24,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:53:24,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:53:24,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:53:24,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:53:24,176 INFO L87 Difference]: Start difference. First operand 5792 states and 15454 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:53:24,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:53:24,326 INFO L93 Difference]: Finished difference Result 9936 states and 26691 transitions. [2022-12-14 15:53:24,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:53:24,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 15:53:24,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:53:24,357 INFO L225 Difference]: With dead ends: 9936 [2022-12-14 15:53:24,357 INFO L226 Difference]: Without dead ends: 9936 [2022-12-14 15:53:24,357 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 [2022-12-14 15:53:24,358 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 98 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:53:24,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 165 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:53:24,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9936 states. [2022-12-14 15:53:24,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9936 to 6308. [2022-12-14 15:53:24,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6308 states, 6120 states have (on average 2.746732026143791) internal successors, (16810), 6307 states have internal predecessors, (16810), 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) [2022-12-14 15:53:24,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6308 states to 6308 states and 16810 transitions. [2022-12-14 15:53:24,517 INFO L78 Accepts]: Start accepts. Automaton has 6308 states and 16810 transitions. Word has length 7 [2022-12-14 15:53:24,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:53:24,517 INFO L495 AbstractCegarLoop]: Abstraction has 6308 states and 16810 transitions. [2022-12-14 15:53:24,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:53:24,517 INFO L276 IsEmpty]: Start isEmpty. Operand 6308 states and 16810 transitions. [2022-12-14 15:53:24,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 15:53:24,518 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:53:24,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:53:24,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:53:24,518 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-12-14 15:53:24,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:53:24,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1092617407, now seen corresponding path program 1 times [2022-12-14 15:53:24,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:53:24,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002000337] [2022-12-14 15:53:24,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:53:24,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:53:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:53:24,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:53:24,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:53:24,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002000337] [2022-12-14 15:53:24,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002000337] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:53:24,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:53:24,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:53:24,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076149423] [2022-12-14 15:53:24,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:53:24,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:53:24,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:53:24,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:53:24,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:53:24,549 INFO L87 Difference]: Start difference. First operand 6308 states and 16810 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:53:24,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:53:24,682 INFO L93 Difference]: Finished difference Result 10112 states and 27115 transitions. [2022-12-14 15:53:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:53:24,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 15:53:24,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:53:24,715 INFO L225 Difference]: With dead ends: 10112 [2022-12-14 15:53:24,715 INFO L226 Difference]: Without dead ends: 10112 [2022-12-14 15:53:24,715 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 [2022-12-14 15:53:24,716 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 96 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:53:24,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 162 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:53:24,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10112 states. [2022-12-14 15:53:24,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10112 to 6632. [2022-12-14 15:53:24,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6632 states, 6486 states have (on average 2.724946037619488) internal successors, (17674), 6631 states have internal predecessors, (17674), 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) [2022-12-14 15:53:24,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6632 states to 6632 states and 17674 transitions. [2022-12-14 15:53:24,868 INFO L78 Accepts]: Start accepts. Automaton has 6632 states and 17674 transitions. Word has length 9 [2022-12-14 15:53:24,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:53:24,868 INFO L495 AbstractCegarLoop]: Abstraction has 6632 states and 17674 transitions. [2022-12-14 15:53:24,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:53:24,868 INFO L276 IsEmpty]: Start isEmpty. Operand 6632 states and 17674 transitions. [2022-12-14 15:53:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 15:53:24,869 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:53:24,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:53:24,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:53:24,869 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-12-14 15:53:24,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:53:24,870 INFO L85 PathProgramCache]: Analyzing trace with hash -2033066852, now seen corresponding path program 1 times [2022-12-14 15:53:24,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:53:24,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777935945] [2022-12-14 15:53:24,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:53:24,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:53:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:53:24,884 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:53:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:53:24,906 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 15:53:24,906 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:53:24,907 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2022-12-14 15:53:24,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2022-12-14 15:53:24,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2022-12-14 15:53:24,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2022-12-14 15:53:24,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2022-12-14 15:53:24,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2022-12-14 15:53:24,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2022-12-14 15:53:24,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2022-12-14 15:53:24,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2022-12-14 15:53:24,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2022-12-14 15:53:24,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2022-12-14 15:53:24,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2022-12-14 15:53:24,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2022-12-14 15:53:24,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2022-12-14 15:53:24,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2022-12-14 15:53:24,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2022-12-14 15:53:24,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2022-12-14 15:53:24,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2022-12-14 15:53:24,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2022-12-14 15:53:24,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2022-12-14 15:53:24,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2022-12-14 15:53:24,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2022-12-14 15:53:24,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2022-12-14 15:53:24,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2022-12-14 15:53:24,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2022-12-14 15:53:24,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2022-12-14 15:53:24,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2022-12-14 15:53:24,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2022-12-14 15:53:24,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2022-12-14 15:53:24,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 56 remaining) [2022-12-14 15:53:24,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 56 remaining) [2022-12-14 15:53:24,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2022-12-14 15:53:24,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2022-12-14 15:53:24,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2022-12-14 15:53:24,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2022-12-14 15:53:24,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2022-12-14 15:53:24,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2022-12-14 15:53:24,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2022-12-14 15:53:24,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2022-12-14 15:53:24,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2022-12-14 15:53:24,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2022-12-14 15:53:24,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2022-12-14 15:53:24,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2022-12-14 15:53:24,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2022-12-14 15:53:24,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2022-12-14 15:53:24,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2022-12-14 15:53:24,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2022-12-14 15:53:24,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2022-12-14 15:53:24,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2022-12-14 15:53:24,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2022-12-14 15:53:24,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2022-12-14 15:53:24,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2022-12-14 15:53:24,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2022-12-14 15:53:24,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2022-12-14 15:53:24,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2022-12-14 15:53:24,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2022-12-14 15:53:24,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 15:53:24,917 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-14 15:53:24,921 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 15:53:24,921 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:53:24,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:53:24 BasicIcfg [2022-12-14 15:53:24,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:53:24,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:53:24,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:53:24,939 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:53:24,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:53:20" (3/4) ... [2022-12-14 15:53:24,941 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 15:53:24,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:53:24,941 INFO L158 Benchmark]: Toolchain (without parser) took 5686.73ms. Allocated memory was 117.4MB in the beginning and 461.4MB in the end (delta: 343.9MB). Free memory was 75.6MB in the beginning and 257.5MB in the end (delta: -182.0MB). Peak memory consumption was 164.6MB. Max. memory is 16.1GB. [2022-12-14 15:53:24,941 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:53:24,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.29ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 55.7MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 15:53:24,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.54ms. Allocated memory is still 117.4MB. Free memory was 55.7MB in the beginning and 53.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:53:24,942 INFO L158 Benchmark]: Boogie Preprocessor took 22.84ms. Allocated memory is still 117.4MB. Free memory was 53.7MB in the beginning and 51.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:53:24,942 INFO L158 Benchmark]: RCFGBuilder took 418.15ms. Allocated memory was 117.4MB in the beginning and 146.8MB in the end (delta: 29.4MB). Free memory was 51.6MB in the beginning and 106.7MB in the end (delta: -55.1MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2022-12-14 15:53:24,942 INFO L158 Benchmark]: TraceAbstraction took 4836.57ms. Allocated memory was 146.8MB in the beginning and 461.4MB in the end (delta: 314.6MB). Free memory was 105.9MB in the beginning and 257.5MB in the end (delta: -151.6MB). Peak memory consumption was 163.5MB. Max. memory is 16.1GB. [2022-12-14 15:53:24,943 INFO L158 Benchmark]: Witness Printer took 2.60ms. Allocated memory is still 461.4MB. Free memory is still 257.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:53:24,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.29ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 55.7MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.54ms. Allocated memory is still 117.4MB. Free memory was 55.7MB in the beginning and 53.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.84ms. Allocated memory is still 117.4MB. Free memory was 53.7MB in the beginning and 51.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 418.15ms. Allocated memory was 117.4MB in the beginning and 146.8MB in the end (delta: 29.4MB). Free memory was 51.6MB in the beginning and 106.7MB in the end (delta: -55.1MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4836.57ms. Allocated memory was 146.8MB in the beginning and 461.4MB in the end (delta: 314.6MB). Free memory was 105.9MB in the beginning and 257.5MB in the end (delta: -151.6MB). Peak memory consumption was 163.5MB. Max. memory is 16.1GB. * Witness Printer took 2.60ms. Allocated memory is still 461.4MB. Free memory is still 257.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 210 PlacesBefore, 122 PlacesAfterwards, 225 TransitionsBefore, 137 TransitionsAfterwards, 19656 CoEnabledTransitionPairs, 5 FixpointIterations, 27 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 0 ChoiceCompositions, 116 TotalNumberOfCompositions, 83495 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20937, independent: 19958, independent conditional: 0, independent unconditional: 19958, dependent: 979, dependent conditional: 0, dependent unconditional: 979, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10777, independent: 10542, independent conditional: 0, independent unconditional: 10542, dependent: 235, dependent conditional: 0, dependent unconditional: 235, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10777, independent: 10368, independent conditional: 0, independent unconditional: 10368, dependent: 409, dependent conditional: 0, dependent unconditional: 409, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 409, independent: 174, independent conditional: 0, independent unconditional: 174, dependent: 235, dependent conditional: 0, dependent unconditional: 235, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 250, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 178, dependent conditional: 0, dependent unconditional: 178, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 20937, independent: 9416, independent conditional: 0, independent unconditional: 9416, dependent: 744, dependent conditional: 0, dependent unconditional: 744, unknown: 10777, unknown conditional: 0, unknown unconditional: 10777] , Statistics on independence cache: Total cache size (in pairs): 2285, Positive cache size: 2117, Positive conditional cache size: 0, Positive unconditional cache size: 2117, Negative cache size: 168, Negative conditional cache size: 0, Negative unconditional cache size: 168, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 704]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int flag1 = 0, flag2 = 0; [L685] 0 int x; [L719] 0 pthread_t t1, t2; [L720] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, x=0] [L721] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, flag1=0, flag2=0, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, x=0] [L703] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, flag1=0, flag2=1, x=0] [L704] 2 flag1 >= 3 VAL [_={0:0}, _={0:0}, _={0:0}, flag1=0, flag2=1, x=0] [L687] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag1 = 1=49, flag2=1, x=0] [L704] 2 flag1 >= 3 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag1 = 1=49, flag2=1, x=0] Now there is a data race on ~flag1~0 between C: flag1 = 1 [687] and C: flag1 >= 3 [704] - 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: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: 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: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: 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: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 354 locations, 56 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 301 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 301 mSDsluCounter, 731 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 226 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 591 IncrementalHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 505 mSDtfsCounter, 591 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8373occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 7108 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2022-12-14 15:53:24,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6178cf1f-8632-4aa8-be97-c5f45138be0c/bin/utaipan-gh47qXpMRh/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