./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW --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 6459c3a3aa967b53ca30e3b9918903c0b3ea7a6b804c927bd1e7a9e96906dc40 --- 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-4e7fbc6 [2022-11-23 13:54:42,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:54:42,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:54:42,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:54:42,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:54:42,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:54:42,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:54:42,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:54:42,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:54:42,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:54:42,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:54:42,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:54:42,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:54:42,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:54:42,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:54:42,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:54:42,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:54:42,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:54:42,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:54:42,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:54:42,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:54:42,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:54:42,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:54:42,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:54:42,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:54:42,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:54:42,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:54:42,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:54:42,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:54:42,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:54:42,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:54:42,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:54:42,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:54:42,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:54:42,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:54:42,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:54:42,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:54:42,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:54:42,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:54:42,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:54:42,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:54:42,372 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 13:54:42,412 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:54:42,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:54:42,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:54:42,416 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:54:42,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:54:42,417 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:54:42,417 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:54:42,417 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:54:42,417 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:54:42,418 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:54:42,419 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:54:42,419 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:54:42,419 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:54:42,419 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:54:42,420 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:54:42,420 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:54:42,420 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:54:42,420 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:54:42,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:54:42,421 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 13:54:42,421 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 13:54:42,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:54:42,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 13:54:42,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:54:42,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:54:42,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:54:42,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:54:42,423 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 13:54:42,423 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 13:54:42,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:54:42,424 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:54:42,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:54:42,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:54:42,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:54:42,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:54:42,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:54:42,425 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:54:42,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:54:42,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:54:42,426 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:54:42,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:54:42,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:54:42,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:54:42,426 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_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6459c3a3aa967b53ca30e3b9918903c0b3ea7a6b804c927bd1e7a9e96906dc40 [2022-11-23 13:54:42,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:54:42,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:54:42,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:54:42,756 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:54:42,757 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:54:42,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i [2022-11-23 13:54:45,769 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:54:46,105 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:54:46,106 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/sv-benchmarks/c/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i [2022-11-23 13:54:46,124 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/data/231cd8863/bffbc14f9c5d489ca0781b2cae0b66b5/FLAG0a80afa2e [2022-11-23 13:54:46,144 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/data/231cd8863/bffbc14f9c5d489ca0781b2cae0b66b5 [2022-11-23 13:54:46,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:54:46,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:54:46,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:54:46,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:54:46,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:54:46,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:54:46" (1/1) ... [2022-11-23 13:54:46,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19db7b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46, skipping insertion in model container [2022-11-23 13:54:46,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:54:46" (1/1) ... [2022-11-23 13:54:46,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:54:46,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:54:46,433 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_b2c92684-eaa7-44a0-806a-a73eac13a890/sv-benchmarks/c/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i[1095,1108] [2022-11-23 13:54:46,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:54:46,638 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:54:46,650 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_b2c92684-eaa7-44a0-806a-a73eac13a890/sv-benchmarks/c/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i[1095,1108] [2022-11-23 13:54:46,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:54:46,708 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:54:46,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46 WrapperNode [2022-11-23 13:54:46,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:54:46,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:54:46,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:54:46,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:54:46,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46" (1/1) ... [2022-11-23 13:54:46,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46" (1/1) ... [2022-11-23 13:54:46,751 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2022-11-23 13:54:46,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:54:46,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:54:46,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:54:46,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:54:46,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46" (1/1) ... [2022-11-23 13:54:46,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46" (1/1) ... [2022-11-23 13:54:46,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46" (1/1) ... [2022-11-23 13:54:46,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46" (1/1) ... [2022-11-23 13:54:46,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46" (1/1) ... [2022-11-23 13:54:46,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46" (1/1) ... [2022-11-23 13:54:46,771 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46" (1/1) ... [2022-11-23 13:54:46,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46" (1/1) ... [2022-11-23 13:54:46,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:54:46,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:54:46,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:54:46,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:54:46,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46" (1/1) ... [2022-11-23 13:54:46,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:54:46,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:54:46,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:54:46,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:54:46,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:54:46,863 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 13:54:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:54:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:54:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 13:54:46,864 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 13:54:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:54:46,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:54:46,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:54:46,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:54:46,866 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 13:54:47,004 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:54:47,006 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:54:47,169 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:54:47,176 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:54:47,176 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 13:54:47,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:54:47 BoogieIcfgContainer [2022-11-23 13:54:47,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:54:47,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:54:47,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:54:47,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:54:47,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:54:46" (1/3) ... [2022-11-23 13:54:47,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59412f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:54:47, skipping insertion in model container [2022-11-23 13:54:47,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:46" (2/3) ... [2022-11-23 13:54:47,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59412f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:54:47, skipping insertion in model container [2022-11-23 13:54:47,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:54:47" (3/3) ... [2022-11-23 13:54:47,188 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_38-traces-ex-4-switch_true.i [2022-11-23 13:54:47,196 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 13:54:47,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:54:47,221 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-23 13:54:47,221 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 13:54:47,336 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 13:54:47,376 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 13:54:47,397 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 83 transitions, 171 flow [2022-11-23 13:54:47,399 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 83 transitions, 171 flow [2022-11-23 13:54:47,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 83 transitions, 171 flow [2022-11-23 13:54:47,449 INFO L130 PetriNetUnfolder]: 1/82 cut-off events. [2022-11-23 13:54:47,449 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 13:54:47,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 1/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2022-11-23 13:54:47,456 INFO L119 LiptonReduction]: Number of co-enabled transitions 1248 [2022-11-23 13:54:50,659 INFO L134 LiptonReduction]: Checked pairs total: 5054 [2022-11-23 13:54:50,659 INFO L136 LiptonReduction]: Total number of compositions: 70 [2022-11-23 13:54:50,667 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 24 transitions, 53 flow [2022-11-23 13:54:50,701 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 107 states, 102 states have (on average 1.9607843137254901) internal successors, (200), 106 states have internal predecessors, (200), 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) [2022-11-23 13:54:50,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:54:50,727 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;@1e854eeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:54:50,727 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-23 13:54:50,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 102 states have (on average 1.9607843137254901) internal successors, (200), 106 states have internal predecessors, (200), 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) [2022-11-23 13:54:50,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 13:54:50,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:50,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 13:54:50,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-23 13:54:50,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:50,741 INFO L85 PathProgramCache]: Analyzing trace with hash 15436887, now seen corresponding path program 1 times [2022-11-23 13:54:50,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:54:50,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979200343] [2022-11-23 13:54:50,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:54:50,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:54:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:54:51,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:54:51,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:54:51,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979200343] [2022-11-23 13:54:51,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979200343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:54:51,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:54:51,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:54:51,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730986520] [2022-11-23 13:54:51,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:54:51,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:54:51,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:54:51,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:54:51,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:54:51,032 INFO L87 Difference]: Start difference. First operand has 107 states, 102 states have (on average 1.9607843137254901) internal successors, (200), 106 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:54:51,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:54:51,128 INFO L93 Difference]: Finished difference Result 142 states and 245 transitions. [2022-11-23 13:54:51,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:54:51,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 13:54:51,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:54:51,146 INFO L225 Difference]: With dead ends: 142 [2022-11-23 13:54:51,146 INFO L226 Difference]: Without dead ends: 130 [2022-11-23 13:54:51,147 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 [2022-11-23 13:54:51,153 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 14 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:54:51,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 11 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:54:51,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-23 13:54:51,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 102. [2022-11-23 13:54:51,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 97 states have (on average 1.8453608247422681) internal successors, (179), 101 states have internal predecessors, (179), 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) [2022-11-23 13:54:51,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 179 transitions. [2022-11-23 13:54:51,215 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 179 transitions. Word has length 6 [2022-11-23 13:54:51,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:54:51,215 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 179 transitions. [2022-11-23 13:54:51,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:54:51,216 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 179 transitions. [2022-11-23 13:54:51,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 13:54:51,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:51,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 13:54:51,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:54:51,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-23 13:54:51,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:51,218 INFO L85 PathProgramCache]: Analyzing trace with hash 14981944, now seen corresponding path program 1 times [2022-11-23 13:54:51,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:54:51,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024752283] [2022-11-23 13:54:51,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:54:51,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:54:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:54:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:54:51,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:54:51,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024752283] [2022-11-23 13:54:51,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024752283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:54:51,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:54:51,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:54:51,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278829673] [2022-11-23 13:54:51,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:54:51,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:54:51,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:54:51,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:54:51,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:54:51,282 INFO L87 Difference]: Start difference. First operand 102 states and 179 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:54:51,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:54:51,329 INFO L93 Difference]: Finished difference Result 101 states and 176 transitions. [2022-11-23 13:54:51,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:54:51,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 13:54:51,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:54:51,332 INFO L225 Difference]: With dead ends: 101 [2022-11-23 13:54:51,334 INFO L226 Difference]: Without dead ends: 101 [2022-11-23 13:54:51,335 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 [2022-11-23 13:54:51,337 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:54:51,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 8 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:54:51,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-11-23 13:54:51,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-11-23 13:54:51,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 97 states have (on average 1.8144329896907216) internal successors, (176), 100 states have internal predecessors, (176), 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) [2022-11-23 13:54:51,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 176 transitions. [2022-11-23 13:54:51,352 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 176 transitions. Word has length 6 [2022-11-23 13:54:51,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:54:51,352 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 176 transitions. [2022-11-23 13:54:51,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:54:51,355 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 176 transitions. [2022-11-23 13:54:51,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 13:54:51,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:51,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:54:51,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:54:51,358 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-23 13:54:51,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:51,358 INFO L85 PathProgramCache]: Analyzing trace with hash 667557892, now seen corresponding path program 1 times [2022-11-23 13:54:51,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:54:51,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782629017] [2022-11-23 13:54:51,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:54:51,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:54:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:54:51,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:54:51,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:54:51,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782629017] [2022-11-23 13:54:51,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782629017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:54:51,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:54:51,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:54:51,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596919822] [2022-11-23 13:54:51,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:54:51,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:54:51,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:54:51,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:54:51,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:54:51,555 INFO L87 Difference]: Start difference. First operand 101 states and 176 transitions. Second operand has 3 states, 3 states have (on average 3.0) 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) [2022-11-23 13:54:51,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:54:51,603 INFO L93 Difference]: Finished difference Result 72 states and 108 transitions. [2022-11-23 13:54:51,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:54:51,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) 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 [2022-11-23 13:54:51,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:54:51,605 INFO L225 Difference]: With dead ends: 72 [2022-11-23 13:54:51,605 INFO L226 Difference]: Without dead ends: 72 [2022-11-23 13:54:51,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:54:51,606 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:54:51,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 9 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:54:51,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-23 13:54:51,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2022-11-23 13:54:51,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 65 states have (on average 1.6) internal successors, (104), 67 states have internal predecessors, (104), 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) [2022-11-23 13:54:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 104 transitions. [2022-11-23 13:54:51,611 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 104 transitions. Word has length 9 [2022-11-23 13:54:51,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:54:51,612 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 104 transitions. [2022-11-23 13:54:51,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) 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) [2022-11-23 13:54:51,612 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 104 transitions. [2022-11-23 13:54:51,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 13:54:51,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:51,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:54:51,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:54:51,613 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-23 13:54:51,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:51,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2088245450, now seen corresponding path program 1 times [2022-11-23 13:54:51,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:54:51,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481636904] [2022-11-23 13:54:51,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:54:51,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:54:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:54:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:54:51,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:54:51,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481636904] [2022-11-23 13:54:51,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481636904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:54:51,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:54:51,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:54:51,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259717746] [2022-11-23 13:54:51,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:54:51,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:54:51,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:54:51,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:54:51,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:54:51,680 INFO L87 Difference]: Start difference. First operand 68 states and 104 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:54:51,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:54:51,727 INFO L93 Difference]: Finished difference Result 67 states and 97 transitions. [2022-11-23 13:54:51,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:54:51,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-23 13:54:51,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:54:51,728 INFO L225 Difference]: With dead ends: 67 [2022-11-23 13:54:51,728 INFO L226 Difference]: Without dead ends: 41 [2022-11-23 13:54:51,729 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 [2022-11-23 13:54:51,730 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 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 [2022-11-23 13:54:51,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:54:51,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-23 13:54:51,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-23 13:54:51,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 40 states have internal predecessors, (57), 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) [2022-11-23 13:54:51,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2022-11-23 13:54:51,734 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 57 transitions. Word has length 10 [2022-11-23 13:54:51,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:54:51,734 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 57 transitions. [2022-11-23 13:54:51,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:54:51,735 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2022-11-23 13:54:51,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 13:54:51,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:51,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:54:51,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 13:54:51,736 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-23 13:54:51,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:51,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1670175685, now seen corresponding path program 1 times [2022-11-23 13:54:51,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:54:51,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969781521] [2022-11-23 13:54:51,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:54:51,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:54:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:54:51,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:54:51,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:54:51,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969781521] [2022-11-23 13:54:51,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969781521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:54:51,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:54:51,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:54:51,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656462497] [2022-11-23 13:54:51,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:54:51,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:54:51,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:54:51,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:54:51,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:54:51,864 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-23 13:54:51,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:54:51,883 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-23 13:54:51,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:54:51,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-23 13:54:51,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:54:51,884 INFO L225 Difference]: With dead ends: 15 [2022-11-23 13:54:51,884 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 13:54:51,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:54:51,885 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:54:51,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:54:51,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 13:54:51,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 13:54:51,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-23 13:54:51,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 13:54:51,887 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-11-23 13:54:51,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:54:51,887 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 13:54:51,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-23 13:54:51,888 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 13:54:51,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 13:54:51,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2022-11-23 13:54:51,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2022-11-23 13:54:51,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2022-11-23 13:54:51,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2022-11-23 13:54:51,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2022-11-23 13:54:51,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2022-11-23 13:54:51,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 13:54:51,894 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-23 13:54:51,899 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 13:54:51,899 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 13:54:51,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:54:51 BasicIcfg [2022-11-23 13:54:51,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 13:54:51,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 13:54:51,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 13:54:51,902 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 13:54:51,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:54:47" (3/4) ... [2022-11-23 13:54:51,905 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 13:54:51,911 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-23 13:54:51,915 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-23 13:54:51,915 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 13:54:51,916 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 13:54:51,916 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 13:54:51,945 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 13:54:51,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 13:54:51,946 INFO L158 Benchmark]: Toolchain (without parser) took 5798.33ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 92.1MB in the beginning and 110.4MB in the end (delta: -18.2MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2022-11-23 13:54:51,946 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:54:51,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.76ms. Allocated memory is still 138.4MB. Free memory was 91.8MB in the beginning and 72.5MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 13:54:51,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.21ms. Allocated memory is still 138.4MB. Free memory was 72.5MB in the beginning and 70.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:54:51,947 INFO L158 Benchmark]: Boogie Preprocessor took 22.70ms. Allocated memory is still 138.4MB. Free memory was 70.4MB in the beginning and 69.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:54:51,948 INFO L158 Benchmark]: RCFGBuilder took 403.73ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 69.1MB in the beginning and 136.9MB in the end (delta: -67.8MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2022-11-23 13:54:51,948 INFO L158 Benchmark]: TraceAbstraction took 4720.34ms. Allocated memory is still 176.2MB. Free memory was 135.8MB in the beginning and 113.5MB in the end (delta: 22.3MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2022-11-23 13:54:51,949 INFO L158 Benchmark]: Witness Printer took 43.42ms. Allocated memory is still 176.2MB. Free memory was 113.5MB in the beginning and 110.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 13:54:51,950 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 556.76ms. Allocated memory is still 138.4MB. Free memory was 91.8MB in the beginning and 72.5MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.21ms. Allocated memory is still 138.4MB. Free memory was 72.5MB in the beginning and 70.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.70ms. Allocated memory is still 138.4MB. Free memory was 70.4MB in the beginning and 69.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.73ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 69.1MB in the beginning and 136.9MB in the end (delta: -67.8MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4720.34ms. Allocated memory is still 176.2MB. Free memory was 135.8MB in the beginning and 113.5MB in the end (delta: 22.3MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * Witness Printer took 43.42ms. Allocated memory is still 176.2MB. Free memory was 113.5MB in the beginning and 110.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 86 PlacesBefore, 27 PlacesAfterwards, 83 TransitionsBefore, 24 TransitionsAfterwards, 1248 CoEnabledTransitionPairs, 9 FixpointIterations, 30 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 70 TotalNumberOfCompositions, 5054 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1806, independent: 1466, independent conditional: 0, independent unconditional: 1466, dependent: 340, dependent conditional: 0, dependent unconditional: 340, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 910, independent: 843, independent conditional: 0, independent unconditional: 843, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 910, independent: 755, independent conditional: 0, independent unconditional: 755, dependent: 155, dependent conditional: 0, dependent unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 155, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 292, independent: 119, independent conditional: 0, independent unconditional: 119, dependent: 173, dependent conditional: 0, dependent unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1806, independent: 623, independent conditional: 0, independent unconditional: 623, dependent: 273, dependent conditional: 0, dependent unconditional: 273, unknown: 910, unknown conditional: 0, unknown unconditional: 910] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, 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 - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 109 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 27 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 32 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 79 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 13:54:51,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c92684-eaa7-44a0-806a-a73eac13a890/bin/utaipan-Q6hlc19bkW/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