./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f --- 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-e04fb08 [2022-11-16 12:17:10,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:17:10,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:17:11,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:17:11,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:17:11,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:17:11,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:17:11,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:17:11,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:17:11,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:17:11,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:17:11,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:17:11,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:17:11,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:17:11,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:17:11,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:17:11,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:17:11,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:17:11,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:17:11,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:17:11,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:17:11,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:17:11,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:17:11,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:17:11,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:17:11,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:17:11,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:17:11,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:17:11,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:17:11,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:17:11,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:17:11,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:17:11,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:17:11,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:17:11,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:17:11,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:17:11,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:17:11,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:17:11,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:17:11,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:17:11,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:17:11,122 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:17:11,171 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:17:11,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:17:11,180 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:17:11,180 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:17:11,181 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:17:11,182 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:17:11,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:17:11,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:17:11,183 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:17:11,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:17:11,185 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:17:11,185 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:17:11,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:17:11,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:17:11,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:17:11,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:17:11,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:17:11,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:17:11,188 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:17:11,188 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:17:11,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:17:11,189 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:17:11,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:17:11,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:17:11,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:17:11,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:17:11,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:17:11,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:17:11,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:17:11,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:17:11,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:17:11,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:17:11,192 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:17:11,193 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:17:11,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:17:11,193 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_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f [2022-11-16 12:17:11,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:17:11,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:17:11,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:17:11,573 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:17:11,574 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:17:11,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i [2022-11-16 12:17:11,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/data/de19dbbe2/0d4da86d2d1340dd8c53a958e23c920e/FLAGaa1f4e4a0 [2022-11-16 12:17:12,273 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:17:12,273 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i [2022-11-16 12:17:12,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/data/de19dbbe2/0d4da86d2d1340dd8c53a958e23c920e/FLAGaa1f4e4a0 [2022-11-16 12:17:12,660 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/data/de19dbbe2/0d4da86d2d1340dd8c53a958e23c920e [2022-11-16 12:17:12,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:17:12,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:17:12,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:17:12,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:17:12,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:17:12,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:17:12" (1/1) ... [2022-11-16 12:17:12,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306ca81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:12, skipping insertion in model container [2022-11-16 12:17:12,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:17:12" (1/1) ... [2022-11-16 12:17:12,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:17:12,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:17:13,018 WARN L229 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_f178d1fe-aa49-47c4-b8ec-fae210dc454a/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101] [2022-11-16 12:17:13,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:17:13,286 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:17:13,306 WARN L229 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_f178d1fe-aa49-47c4-b8ec-fae210dc454a/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101] [2022-11-16 12:17:13,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:17:13,400 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:17:13,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:13 WrapperNode [2022-11-16 12:17:13,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:17:13,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:17:13,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:17:13,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:17:13,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:13" (1/1) ... [2022-11-16 12:17:13,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:13" (1/1) ... [2022-11-16 12:17:13,470 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-11-16 12:17:13,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:17:13,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:17:13,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:17:13,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:17:13,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:13" (1/1) ... [2022-11-16 12:17:13,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:13" (1/1) ... [2022-11-16 12:17:13,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:13" (1/1) ... [2022-11-16 12:17:13,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:13" (1/1) ... [2022-11-16 12:17:13,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:13" (1/1) ... [2022-11-16 12:17:13,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:13" (1/1) ... [2022-11-16 12:17:13,515 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:13" (1/1) ... [2022-11-16 12:17:13,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:13" (1/1) ... [2022-11-16 12:17:13,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:17:13,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:17:13,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:17:13,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:17:13,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:13" (1/1) ... [2022-11-16 12:17:13,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:17:13,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:17:13,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:17:13,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:17:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:17:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:17:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:17:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:17:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:17:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:17:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:17:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:17:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:17:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:17:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:17:13,616 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:17:13,785 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:17:13,787 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:17:14,064 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:17:14,071 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:17:14,071 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:17:14,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:17:14 BoogieIcfgContainer [2022-11-16 12:17:14,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:17:14,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:17:14,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:17:14,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:17:14,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:17:12" (1/3) ... [2022-11-16 12:17:14,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f7ba61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:17:14, skipping insertion in model container [2022-11-16 12:17:14,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:13" (2/3) ... [2022-11-16 12:17:14,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f7ba61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:17:14, skipping insertion in model container [2022-11-16 12:17:14,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:17:14" (3/3) ... [2022-11-16 12:17:14,088 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2022-11-16 12:17:14,105 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:17:14,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:17:14,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 12:17:14,118 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:17:14,227 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 12:17:14,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 97 transitions, 202 flow [2022-11-16 12:17:14,310 INFO L130 PetriNetUnfolder]: 3/96 cut-off events. [2022-11-16 12:17:14,310 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:17:14,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 3/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-11-16 12:17:14,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 97 transitions, 202 flow [2022-11-16 12:17:14,320 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 88 transitions, 179 flow [2022-11-16 12:17:14,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:17:14,338 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=PETRI_NET, 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;@3f1eb0e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:17:14,339 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-16 12:17:14,346 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-11-16 12:17:14,346 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:17:14,346 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:17:14,347 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:17:14,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-11-16 12:17:14,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:17:14,353 INFO L85 PathProgramCache]: Analyzing trace with hash 317547055, now seen corresponding path program 1 times [2022-11-16 12:17:14,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:17:14,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135007233] [2022-11-16 12:17:14,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:17:14,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:17:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:17:14,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:17:14,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135007233] [2022-11-16 12:17:14,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135007233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:17:14,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:17:14,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:17:14,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499538823] [2022-11-16 12:17:14,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:17:14,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:17:14,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:17:14,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:17:14,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:17:14,786 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 97 [2022-11-16 12:17:14,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 88 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2022-11-16 12:17:14,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:17:14,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 97 [2022-11-16 12:17:14,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:17:15,005 INFO L130 PetriNetUnfolder]: 28/269 cut-off events. [2022-11-16 12:17:15,005 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:17:15,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 269 events. 28/269 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1164 event pairs, 8 based on Foata normal form. 15/244 useless extension candidates. Maximal degree in co-relation 309. Up to 48 conditions per place. [2022-11-16 12:17:15,009 INFO L137 encePairwiseOnDemand]: 86/97 looper letters, 15 selfloop transitions, 6 changer transitions 1/89 dead transitions. [2022-11-16 12:17:15,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 89 transitions, 223 flow [2022-11-16 12:17:15,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:17:15,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:17:15,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2022-11-16 12:17:15,033 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8762886597938144 [2022-11-16 12:17:15,034 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2022-11-16 12:17:15,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2022-11-16 12:17:15,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:17:15,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2022-11-16 12:17:15,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2022-11-16 12:17:15,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-16 12:17:15,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-16 12:17:15,061 INFO L175 Difference]: Start difference. First operand has 89 places, 88 transitions, 179 flow. Second operand 3 states and 255 transitions. [2022-11-16 12:17:15,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 89 transitions, 223 flow [2022-11-16 12:17:15,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 89 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:17:15,071 INFO L231 Difference]: Finished difference. Result has 88 places, 84 transitions, 202 flow [2022-11-16 12:17:15,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=88, PETRI_TRANSITIONS=84} [2022-11-16 12:17:15,079 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, -1 predicate places. [2022-11-16 12:17:15,080 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 84 transitions, 202 flow [2022-11-16 12:17:15,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2022-11-16 12:17:15,081 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:17:15,081 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:17:15,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:17:15,082 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-11-16 12:17:15,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:17:15,085 INFO L85 PathProgramCache]: Analyzing trace with hash 447082083, now seen corresponding path program 1 times [2022-11-16 12:17:15,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:17:15,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029388966] [2022-11-16 12:17:15,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:17:15,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:17:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:15,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:17:15,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:17:15,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029388966] [2022-11-16 12:17:15,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029388966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:17:15,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:17:15,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:17:15,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038840624] [2022-11-16 12:17:15,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:17:15,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:17:15,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:17:15,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:17:15,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:17:15,301 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 97 [2022-11-16 12:17:15,302 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 84 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2022-11-16 12:17:15,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:17:15,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 97 [2022-11-16 12:17:15,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:17:15,413 INFO L130 PetriNetUnfolder]: 32/310 cut-off events. [2022-11-16 12:17:15,414 INFO L131 PetriNetUnfolder]: For 62/68 co-relation queries the response was YES. [2022-11-16 12:17:15,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 310 events. 32/310 cut-off events. For 62/68 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1519 event pairs, 15 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 436. Up to 75 conditions per place. [2022-11-16 12:17:15,416 INFO L137 encePairwiseOnDemand]: 92/97 looper letters, 21 selfloop transitions, 4 changer transitions 0/90 dead transitions. [2022-11-16 12:17:15,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 90 transitions, 276 flow [2022-11-16 12:17:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:17:15,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:17:15,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2022-11-16 12:17:15,419 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8384879725085911 [2022-11-16 12:17:15,419 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2022-11-16 12:17:15,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2022-11-16 12:17:15,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:17:15,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2022-11-16 12:17:15,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2022-11-16 12:17:15,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-16 12:17:15,422 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-16 12:17:15,422 INFO L175 Difference]: Start difference. First operand has 88 places, 84 transitions, 202 flow. Second operand 3 states and 244 transitions. [2022-11-16 12:17:15,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 90 transitions, 276 flow [2022-11-16 12:17:15,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 90 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:17:15,427 INFO L231 Difference]: Finished difference. Result has 89 places, 87 transitions, 222 flow [2022-11-16 12:17:15,427 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=89, PETRI_TRANSITIONS=87} [2022-11-16 12:17:15,428 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 0 predicate places. [2022-11-16 12:17:15,428 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 87 transitions, 222 flow [2022-11-16 12:17:15,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2022-11-16 12:17:15,429 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:17:15,429 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:17:15,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:17:15,429 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-11-16 12:17:15,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:17:15,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1277436674, now seen corresponding path program 1 times [2022-11-16 12:17:15,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:17:15,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527012053] [2022-11-16 12:17:15,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:17:15,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:17:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:15,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:17:15,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:17:15,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527012053] [2022-11-16 12:17:15,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527012053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:17:15,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:17:15,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:17:15,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575916591] [2022-11-16 12:17:15,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:17:15,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:17:15,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:17:15,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:17:15,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:17:15,507 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 97 [2022-11-16 12:17:15,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 87 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2022-11-16 12:17:15,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:17:15,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 97 [2022-11-16 12:17:15,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:17:15,601 INFO L130 PetriNetUnfolder]: 31/318 cut-off events. [2022-11-16 12:17:15,602 INFO L131 PetriNetUnfolder]: For 58/72 co-relation queries the response was YES. [2022-11-16 12:17:15,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 318 events. 31/318 cut-off events. For 58/72 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1570 event pairs, 12 based on Foata normal form. 0/283 useless extension candidates. Maximal degree in co-relation 453. Up to 72 conditions per place. [2022-11-16 12:17:15,605 INFO L137 encePairwiseOnDemand]: 92/97 looper letters, 23 selfloop transitions, 4 changer transitions 0/93 dead transitions. [2022-11-16 12:17:15,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 93 transitions, 298 flow [2022-11-16 12:17:15,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:17:15,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:17:15,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2022-11-16 12:17:15,607 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8384879725085911 [2022-11-16 12:17:15,607 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2022-11-16 12:17:15,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2022-11-16 12:17:15,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:17:15,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2022-11-16 12:17:15,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2022-11-16 12:17:15,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-16 12:17:15,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-16 12:17:15,611 INFO L175 Difference]: Start difference. First operand has 89 places, 87 transitions, 222 flow. Second operand 3 states and 244 transitions. [2022-11-16 12:17:15,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 93 transitions, 298 flow [2022-11-16 12:17:15,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 93 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:17:15,621 INFO L231 Difference]: Finished difference. Result has 91 places, 90 transitions, 248 flow [2022-11-16 12:17:15,622 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=91, PETRI_TRANSITIONS=90} [2022-11-16 12:17:15,623 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 2 predicate places. [2022-11-16 12:17:15,623 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 90 transitions, 248 flow [2022-11-16 12:17:15,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2022-11-16 12:17:15,624 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:17:15,624 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:17:15,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:17:15,625 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-11-16 12:17:15,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:17:15,625 INFO L85 PathProgramCache]: Analyzing trace with hash -987880523, now seen corresponding path program 1 times [2022-11-16 12:17:15,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:17:15,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844421824] [2022-11-16 12:17:15,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:17:15,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:17:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:15,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:17:15,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:17:15,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844421824] [2022-11-16 12:17:15,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844421824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:17:15,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:17:15,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:17:15,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284618878] [2022-11-16 12:17:15,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:17:15,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:17:15,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:17:15,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:17:15,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:17:15,854 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 97 [2022-11-16 12:17:15,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 90 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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) [2022-11-16 12:17:15,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:17:15,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 97 [2022-11-16 12:17:15,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:17:15,891 INFO L130 PetriNetUnfolder]: 2/119 cut-off events. [2022-11-16 12:17:15,891 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-16 12:17:15,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 119 events. 2/119 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 148 event pairs, 0 based on Foata normal form. 2/115 useless extension candidates. Maximal degree in co-relation 124. Up to 12 conditions per place. [2022-11-16 12:17:15,892 INFO L137 encePairwiseOnDemand]: 93/97 looper letters, 7 selfloop transitions, 4 changer transitions 1/80 dead transitions. [2022-11-16 12:17:15,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 80 transitions, 220 flow [2022-11-16 12:17:15,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:17:15,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:17:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2022-11-16 12:17:15,895 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8797250859106529 [2022-11-16 12:17:15,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2022-11-16 12:17:15,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2022-11-16 12:17:15,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:17:15,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2022-11-16 12:17:15,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2022-11-16 12:17:15,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-16 12:17:15,898 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-16 12:17:15,898 INFO L175 Difference]: Start difference. First operand has 91 places, 90 transitions, 248 flow. Second operand 3 states and 256 transitions. [2022-11-16 12:17:15,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 80 transitions, 220 flow [2022-11-16 12:17:15,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 80 transitions, 198 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-16 12:17:15,902 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 182 flow [2022-11-16 12:17:15,902 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2022-11-16 12:17:15,903 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, -5 predicate places. [2022-11-16 12:17:15,903 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 182 flow [2022-11-16 12:17:15,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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) [2022-11-16 12:17:15,904 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:17:15,904 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:17:15,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:17:15,904 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-11-16 12:17:15,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:17:15,905 INFO L85 PathProgramCache]: Analyzing trace with hash -816035805, now seen corresponding path program 1 times [2022-11-16 12:17:15,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:17:15,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617829227] [2022-11-16 12:17:15,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:17:15,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:17:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:16,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:17:16,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:17:16,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617829227] [2022-11-16 12:17:16,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617829227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:17:16,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:17:16,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:17:16,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181719158] [2022-11-16 12:17:16,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:17:16,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:17:16,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:17:16,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:17:16,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:17:16,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 97 [2022-11-16 12:17:16,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2022-11-16 12:17:16,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:17:16,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 97 [2022-11-16 12:17:16,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:17:16,553 INFO L130 PetriNetUnfolder]: 2/115 cut-off events. [2022-11-16 12:17:16,554 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:17:16,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 115 events. 2/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 133 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 112. Up to 7 conditions per place. [2022-11-16 12:17:16,555 INFO L137 encePairwiseOnDemand]: 92/97 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2022-11-16 12:17:16,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 78 transitions, 200 flow [2022-11-16 12:17:16,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:17:16,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:17:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 485 transitions. [2022-11-16 12:17:16,558 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-11-16 12:17:16,558 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 485 transitions. [2022-11-16 12:17:16,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 485 transitions. [2022-11-16 12:17:16,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:17:16,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 485 transitions. [2022-11-16 12:17:16,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 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) [2022-11-16 12:17:16,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 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) [2022-11-16 12:17:16,564 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 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) [2022-11-16 12:17:16,565 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 182 flow. Second operand 6 states and 485 transitions. [2022-11-16 12:17:16,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 78 transitions, 200 flow [2022-11-16 12:17:16,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 78 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:17:16,568 INFO L231 Difference]: Finished difference. Result has 86 places, 0 transitions, 0 flow [2022-11-16 12:17:16,568 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=86, PETRI_TRANSITIONS=0} [2022-11-16 12:17:16,571 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, -3 predicate places. [2022-11-16 12:17:16,571 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 0 transitions, 0 flow [2022-11-16 12:17:16,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2022-11-16 12:17:16,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2022-11-16 12:17:16,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2022-11-16 12:17:16,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2022-11-16 12:17:16,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 10 remaining) [2022-11-16 12:17:16,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2022-11-16 12:17:16,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2022-11-16 12:17:16,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2022-11-16 12:17:16,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2022-11-16 12:17:16,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2022-11-16 12:17:16,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2022-11-16 12:17:16,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:17:16,579 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 12:17:16,588 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:17:16,589 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:17:16,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:17:16 BasicIcfg [2022-11-16 12:17:16,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:17:16,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:17:16,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:17:16,601 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:17:16,601 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:17:14" (3/4) ... [2022-11-16 12:17:16,604 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:17:16,612 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 12:17:16,618 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-16 12:17:16,619 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 12:17:16,619 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:17:16,619 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:17:16,672 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:17:16,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:17:16,674 INFO L158 Benchmark]: Toolchain (without parser) took 4009.19ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 69.1MB in the beginning and 56.4MB in the end (delta: 12.6MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2022-11-16 12:17:16,674 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:17:16,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 734.32ms. Allocated memory is still 115.3MB. Free memory was 68.9MB in the beginning and 79.3MB in the end (delta: -10.5MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-11-16 12:17:16,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.44ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 77.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:17:16,675 INFO L158 Benchmark]: Boogie Preprocessor took 46.54ms. Allocated memory is still 115.3MB. Free memory was 77.2MB in the beginning and 76.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:17:16,676 INFO L158 Benchmark]: RCFGBuilder took 554.53ms. Allocated memory is still 115.3MB. Free memory was 76.0MB in the beginning and 61.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 12:17:16,676 INFO L158 Benchmark]: TraceAbstraction took 2523.64ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 61.4MB in the beginning and 59.6MB in the end (delta: 1.8MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2022-11-16 12:17:16,677 INFO L158 Benchmark]: Witness Printer took 72.48ms. Allocated memory is still 138.4MB. Free memory was 59.6MB in the beginning and 56.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:17:16,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 734.32ms. Allocated memory is still 115.3MB. Free memory was 68.9MB in the beginning and 79.3MB in the end (delta: -10.5MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.44ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 77.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.54ms. Allocated memory is still 115.3MB. Free memory was 77.2MB in the beginning and 76.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 554.53ms. Allocated memory is still 115.3MB. Free memory was 76.0MB in the beginning and 61.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2523.64ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 61.4MB in the beginning and 59.6MB in the end (delta: 1.8MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Witness Printer took 72.48ms. Allocated memory is still 138.4MB. Free memory was 59.6MB in the beginning and 56.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 123 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 52 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=248occurred in iteration=3, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 339 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:17:16,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f178d1fe-aa49-47c4-b8ec-fae210dc454a/bin/uautomizer-tPACEb0tL8/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 Result: TRUE