./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI --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 dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- 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-5e519f3 [2022-11-03 02:21:50,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:21:50,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:21:50,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:21:50,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:21:50,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:21:50,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:21:50,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:21:50,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:21:50,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:21:50,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:21:50,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:21:50,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:21:50,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:21:50,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:21:50,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:21:50,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:21:50,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:21:50,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:21:50,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:21:50,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:21:50,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:21:50,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:21:50,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:21:50,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:21:50,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:21:50,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:21:50,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:21:50,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:21:50,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:21:50,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:21:50,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:21:50,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:21:50,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:21:50,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:21:50,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:21:50,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:21:50,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:21:50,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:21:50,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:21:50,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:21:50,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:21:50,220 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:21:50,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:21:50,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:21:50,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:21:50,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:21:50,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:21:50,223 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:21:50,223 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:21:50,223 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:21:50,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:21:50,225 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:21:50,225 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:21:50,226 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:21:50,226 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:21:50,226 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:21:50,226 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:21:50,227 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:21:50,227 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:21:50,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:21:50,228 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:21:50,228 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:21:50,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:21:50,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:21:50,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:21:50,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:21:50,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:21:50,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:21:50,230 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:21:50,230 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:21:50,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:21:50,231 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:21:50,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:21:50,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:21:50,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:21:50,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:21:50,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:21:50,234 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:21:50,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:21:50,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:21:50,234 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:21:50,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:21:50,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:21:50,235 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:21:50,235 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_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2022-11-03 02:21:50,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:21:50,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:21:50,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:21:50,625 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:21:50,626 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:21:50,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2022-11-03 02:21:50,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/data/900b8e76a/0f7df95e13f34c3484aa8189d19f3358/FLAGf0ce2713a [2022-11-03 02:21:51,547 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:21:51,552 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2022-11-03 02:21:51,584 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/data/900b8e76a/0f7df95e13f34c3484aa8189d19f3358/FLAGf0ce2713a [2022-11-03 02:21:51,732 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/data/900b8e76a/0f7df95e13f34c3484aa8189d19f3358 [2022-11-03 02:21:51,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:21:51,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:21:51,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:21:51,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:21:51,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:21:51,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:21:51" (1/1) ... [2022-11-03 02:21:51,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ffd69d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:51, skipping insertion in model container [2022-11-03 02:21:51,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:21:51" (1/1) ... [2022-11-03 02:21:51,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:21:51,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:21:52,571 WARN L230 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_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2022-11-03 02:21:52,591 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-03 02:21:52,592 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-03 02:21:52,594 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-03 02:21:52,595 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-03 02:21:52,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:21:52,670 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:21:52,709 WARN L230 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_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2022-11-03 02:21:52,715 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-03 02:21:52,716 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-03 02:21:52,717 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-03 02:21:52,719 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-03 02:21:52,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:21:52,810 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:21:52,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52 WrapperNode [2022-11-03 02:21:52,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:21:52,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:21:52,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:21:52,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:21:52,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,896 INFO L138 Inliner]: procedures = 279, calls = 51, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 345 [2022-11-03 02:21:52,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:21:52,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:21:52,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:21:52,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:21:52,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:52,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:53,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:53,007 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:53,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:53,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:21:53,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:21:53,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:21:53,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:21:53,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (1/1) ... [2022-11-03 02:21:53,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:21:53,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:21:53,076 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:21:53,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dbb104-1bf4-40e2-a4ce-f31e77fd9536/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:21:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:21:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:21:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:21:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:21:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:21:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 02:21:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:21:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:21:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:21:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-03 02:21:53,156 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-03 02:21:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:21:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:21:53,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:21:53,158 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:21:53,354 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:21:53,356 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:21:54,345 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:21:54,360 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:21:54,361 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-03 02:21:54,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:21:54 BoogieIcfgContainer [2022-11-03 02:21:54,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:21:54,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:21:54,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:21:54,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:21:54,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:21:51" (1/3) ... [2022-11-03 02:21:54,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519c2728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:21:54, skipping insertion in model container [2022-11-03 02:21:54,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:52" (2/3) ... [2022-11-03 02:21:54,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519c2728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:21:54, skipping insertion in model container [2022-11-03 02:21:54,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:21:54" (3/3) ... [2022-11-03 02:21:54,382 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2022-11-03 02:21:54,396 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:21:54,412 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:21:54,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-03 02:21:54,412 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:21:54,618 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-03 02:21:54,730 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:21:54,764 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 397 transitions, 802 flow [2022-11-03 02:21:54,768 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 397 transitions, 802 flow [2022-11-03 02:21:54,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 397 transitions, 802 flow [2022-11-03 02:21:54,926 INFO L130 PetriNetUnfolder]: 29/420 cut-off events. [2022-11-03 02:21:54,927 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2022-11-03 02:21:54,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 420 events. 29/420 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1060 event pairs, 0 based on Foata normal form. 0/367 useless extension candidates. Maximal degree in co-relation 251. Up to 4 conditions per place. [2022-11-03 02:21:54,940 INFO L118 LiptonReduction]: Number of co-enabled transitions 7772 [2022-11-03 02:22:38,270 WARN L234 SmtUtils]: Spent 7.33s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:22:43,773 WARN L234 SmtUtils]: Spent 5.50s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:22:52,356 WARN L234 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:23:04,187 WARN L234 SmtUtils]: Spent 7.22s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:23:14,183 WARN L234 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:26:12,513 WARN L234 SmtUtils]: Spent 2.71m on a formula simplification. DAG size of input: 198 DAG size of output: 189 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:27:22,814 WARN L234 SmtUtils]: Spent 1.17m on a formula simplification that was a NOOP. DAG size: 179 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:30:04,913 WARN L234 SmtUtils]: Spent 2.70m on a formula simplification. DAG size of input: 198 DAG size of output: 189 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:31:15,274 WARN L234 SmtUtils]: Spent 1.17m on a formula simplification that was a NOOP. DAG size: 179 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:34:01,978 WARN L234 SmtUtils]: Spent 2.77m on a formula simplification that was a NOOP. DAG size: 264 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:36:18,534 WARN L234 SmtUtils]: Spent 2.28m on a formula simplification that was a NOOP. DAG size: 252 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)