./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 10:11:44,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:11:44,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:11:44,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:11:44,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:11:44,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:11:44,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:11:44,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:11:44,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:11:44,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:11:44,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:11:44,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:11:44,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:11:44,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:11:44,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:11:44,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:11:44,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:11:44,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:11:44,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:11:44,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:11:44,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:11:44,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:11:44,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:11:44,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:11:44,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:11:44,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:11:44,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:11:44,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:11:44,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:11:44,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:11:44,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:11:44,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:11:44,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:11:44,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:11:44,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:11:44,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:11:44,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:11:44,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:11:44,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:11:44,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:11:44,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:11:44,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 10:11:44,173 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:11:44,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:11:44,173 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:11:44,173 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:11:44,174 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:11:44,174 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:11:44,174 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:11:44,174 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:11:44,174 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:11:44,174 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:11:44,175 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:11:44,175 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:11:44,175 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:11:44,175 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:11:44,175 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:11:44,175 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:11:44,175 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:11:44,175 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:11:44,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 10:11:44,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 10:11:44,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:11:44,176 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:11:44,176 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:11:44,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:11:44,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:11:44,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:11:44,177 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 10:11:44,177 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 10:11:44,177 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 10:11:44,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:11:44,177 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 10:11:44,177 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:11:44,177 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:11:44,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:11:44,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:11:44,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:11:44,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:11:44,178 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:11:44,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:11:44,178 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:11:44,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:11:44,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:11:44,179 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_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d [2022-12-14 10:11:44,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:11:44,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:11:44,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:11:44,368 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:11:44,369 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:11:44,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2022-12-14 10:11:47,081 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:11:47,284 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:11:47,284 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2022-12-14 10:11:47,300 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/data/d3f6ecb71/cbf98895304f4c448465f26ded4646e8/FLAG91a158217 [2022-12-14 10:11:47,311 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/data/d3f6ecb71/cbf98895304f4c448465f26ded4646e8 [2022-12-14 10:11:47,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:11:47,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:11:47,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:11:47,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:11:47,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:11:47,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:11:47" (1/1) ... [2022-12-14 10:11:47,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff17205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47, skipping insertion in model container [2022-12-14 10:11:47,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:11:47" (1/1) ... [2022-12-14 10:11:47,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:11:47,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:11:47,487 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_a4f6cdd5-6e1e-4221-ae18-510db32574e0/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i[1097,1110] [2022-12-14 10:11:47,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:11:47,628 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:11:47,639 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_a4f6cdd5-6e1e-4221-ae18-510db32574e0/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i[1097,1110] [2022-12-14 10:11:47,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:11:47,691 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:11:47,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47 WrapperNode [2022-12-14 10:11:47,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:11:47,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:11:47,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:11:47,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:11:47,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47" (1/1) ... [2022-12-14 10:11:47,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47" (1/1) ... [2022-12-14 10:11:47,731 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-14 10:11:47,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:11:47,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:11:47,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:11:47,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:11:47,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47" (1/1) ... [2022-12-14 10:11:47,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47" (1/1) ... [2022-12-14 10:11:47,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47" (1/1) ... [2022-12-14 10:11:47,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47" (1/1) ... [2022-12-14 10:11:47,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47" (1/1) ... [2022-12-14 10:11:47,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47" (1/1) ... [2022-12-14 10:11:47,749 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47" (1/1) ... [2022-12-14 10:11:47,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47" (1/1) ... [2022-12-14 10:11:47,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:11:47,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:11:47,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:11:47,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:11:47,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47" (1/1) ... [2022-12-14 10:11:47,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:11:47,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:11:47,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:11:47,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:11:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:11:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:11:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 10:11:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:11:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:11:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 10:11:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 10:11:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:11:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:11:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:11:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:11:47,806 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 10:11:47,912 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:11:47,914 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:11:48,053 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:11:48,058 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:11:48,059 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:11:48,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:11:48 BoogieIcfgContainer [2022-12-14 10:11:48,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:11:48,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:11:48,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:11:48,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:11:48,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:11:47" (1/3) ... [2022-12-14 10:11:48,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612881bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:11:48, skipping insertion in model container [2022-12-14 10:11:48,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:47" (2/3) ... [2022-12-14 10:11:48,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612881bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:11:48, skipping insertion in model container [2022-12-14 10:11:48,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:11:48" (3/3) ... [2022-12-14 10:11:48,074 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2022-12-14 10:11:48,089 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:11:48,089 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 10:11:48,089 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 10:11:48,140 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 10:11:48,166 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 10:11:48,180 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 72 transitions, 152 flow [2022-12-14 10:11:48,183 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 72 transitions, 152 flow [2022-12-14 10:11:48,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 152 flow [2022-12-14 10:11:48,225 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-12-14 10:11:48,225 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 10:11:48,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 2/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-14 10:11:48,231 INFO L119 LiptonReduction]: Number of co-enabled transitions 384 [2022-12-14 10:11:50,249 INFO L134 LiptonReduction]: Checked pairs total: 669 [2022-12-14 10:11:50,249 INFO L136 LiptonReduction]: Total number of compositions: 76 [2022-12-14 10:11:50,255 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 15 transitions, 38 flow [2022-12-14 10:11:50,262 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:50,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:11:50,278 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@7ad0360c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:11:50,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 10:11:50,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:50,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 10:11:50,283 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:50,283 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 10:11:50,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-14 10:11:50,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:50,287 INFO L85 PathProgramCache]: Analyzing trace with hash 284, now seen corresponding path program 1 times [2022-12-14 10:11:50,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:50,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781418809] [2022-12-14 10:11:50,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:50,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:50,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:50,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:50,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781418809] [2022-12-14 10:11:50,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781418809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:50,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:50,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 10:11:50,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464579221] [2022-12-14 10:11:50,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:50,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:11:50,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:50,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:11:50,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:11:50,391 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:50,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:50,417 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2022-12-14 10:11:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:11:50,419 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-12-14 10:11:50,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:50,424 INFO L225 Difference]: With dead ends: 24 [2022-12-14 10:11:50,424 INFO L226 Difference]: Without dead ends: 24 [2022-12-14 10:11:50,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:11:50,427 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:50,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:11:50,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-14 10:11:50,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-14 10:11:50,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:50,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2022-12-14 10:11:50,449 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 35 transitions. Word has length 1 [2022-12-14 10:11:50,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:50,449 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 35 transitions. [2022-12-14 10:11:50,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:50,449 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-12-14 10:11:50,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 10:11:50,449 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:50,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 10:11:50,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:11:50,450 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-14 10:11:50,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:50,450 INFO L85 PathProgramCache]: Analyzing trace with hash 280616, now seen corresponding path program 1 times [2022-12-14 10:11:50,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:50,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893011529] [2022-12-14 10:11:50,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:50,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:11:50,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:11:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:11:50,505 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 10:11:50,505 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:11:50,506 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-12-14 10:11:50,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-12-14 10:11:50,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-12-14 10:11:50,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-12-14 10:11:50,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-12-14 10:11:50,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-12-14 10:11:50,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-14 10:11:50,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-12-14 10:11:50,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:11:50,510 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 10:11:50,514 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 10:11:50,514 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:11:50,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:11:50 BasicIcfg [2022-12-14 10:11:50,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:11:50,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:11:50,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:11:50,530 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:11:50,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:11:48" (3/4) ... [2022-12-14 10:11:50,532 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 10:11:50,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:11:50,533 INFO L158 Benchmark]: Toolchain (without parser) took 3219.57ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 80.8MB in the beginning and 86.4MB in the end (delta: -5.6MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2022-12-14 10:11:50,533 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:11:50,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.71ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 62.0MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 10:11:50,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.93ms. Allocated memory is still 117.4MB. Free memory was 62.0MB in the beginning and 59.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:11:50,534 INFO L158 Benchmark]: Boogie Preprocessor took 20.65ms. Allocated memory is still 117.4MB. Free memory was 59.9MB in the beginning and 58.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:11:50,534 INFO L158 Benchmark]: RCFGBuilder took 307.35ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 58.4MB in the beginning and 136.7MB in the end (delta: -78.3MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-12-14 10:11:50,535 INFO L158 Benchmark]: TraceAbstraction took 2460.84ms. Allocated memory is still 167.8MB. Free memory was 136.7MB in the beginning and 87.5MB in the end (delta: 49.3MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2022-12-14 10:11:50,535 INFO L158 Benchmark]: Witness Printer took 2.49ms. Allocated memory is still 167.8MB. Free memory was 87.5MB in the beginning and 86.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:11:50,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.71ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 62.0MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.93ms. Allocated memory is still 117.4MB. Free memory was 62.0MB in the beginning and 59.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.65ms. Allocated memory is still 117.4MB. Free memory was 59.9MB in the beginning and 58.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 307.35ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 58.4MB in the beginning and 136.7MB in the end (delta: -78.3MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2460.84ms. Allocated memory is still 167.8MB. Free memory was 136.7MB in the beginning and 87.5MB in the end (delta: 49.3MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * Witness Printer took 2.49ms. Allocated memory is still 167.8MB. Free memory was 87.5MB in the beginning and 86.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 74 PlacesBefore, 19 PlacesAfterwards, 72 TransitionsBefore, 15 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 76 TotalNumberOfCompositions, 669 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 520, independent: 464, independent conditional: 0, independent unconditional: 464, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 308, independent: 286, independent conditional: 0, independent unconditional: 286, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 308, independent: 280, independent conditional: 0, independent unconditional: 280, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 520, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 308, unknown conditional: 0, unknown unconditional: 308] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, 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 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 0)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 10:11:50,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 10:11:52,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:11:52,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:11:52,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:11:52,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:11:52,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:11:52,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:11:52,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:11:52,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:11:52,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:11:52,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:11:52,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:11:52,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:11:52,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:11:52,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:11:52,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:11:52,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:11:52,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:11:52,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:11:52,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:11:52,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:11:52,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:11:52,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:11:52,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:11:52,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:11:52,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:11:52,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:11:52,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:11:52,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:11:52,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:11:52,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:11:52,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:11:52,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:11:52,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:11:52,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:11:52,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:11:52,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:11:52,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:11:52,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:11:52,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:11:52,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:11:52,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 10:11:52,249 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:11:52,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:11:52,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:11:52,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:11:52,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:11:52,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:11:52,251 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:11:52,251 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:11:52,251 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:11:52,251 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:11:52,251 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:11:52,251 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:11:52,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 10:11:52,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 10:11:52,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:11:52,252 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:11:52,252 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:11:52,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:11:52,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:11:52,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:11:52,253 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 10:11:52,253 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 10:11:52,253 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 10:11:52,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:11:52,253 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 10:11:52,253 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 10:11:52,253 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 10:11:52,254 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:11:52,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:11:52,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:11:52,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 10:11:52,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:11:52,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:11:52,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:11:52,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:11:52,255 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 10:11:52,255 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 10:11:52,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:11:52,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 10:11:52,255 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d [2022-12-14 10:11:52,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:11:52,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:11:52,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:11:52,504 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:11:52,505 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:11:52,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2022-12-14 10:11:55,095 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:11:55,249 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:11:55,249 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2022-12-14 10:11:55,258 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/data/6bb95c207/55f2de58e5ff4f1bbd738a1e044c19e2/FLAG152a8ac28 [2022-12-14 10:11:55,271 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/data/6bb95c207/55f2de58e5ff4f1bbd738a1e044c19e2 [2022-12-14 10:11:55,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:11:55,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:11:55,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:11:55,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:11:55,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:11:55,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:11:55" (1/1) ... [2022-12-14 10:11:55,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33497134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55, skipping insertion in model container [2022-12-14 10:11:55,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:11:55" (1/1) ... [2022-12-14 10:11:55,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:11:55,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:11:55,428 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_a4f6cdd5-6e1e-4221-ae18-510db32574e0/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i[1097,1110] [2022-12-14 10:11:55,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:11:55,533 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:11:55,542 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_a4f6cdd5-6e1e-4221-ae18-510db32574e0/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i[1097,1110] [2022-12-14 10:11:55,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:11:55,586 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:11:55,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55 WrapperNode [2022-12-14 10:11:55,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:11:55,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:11:55,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:11:55,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:11:55,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55" (1/1) ... [2022-12-14 10:11:55,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55" (1/1) ... [2022-12-14 10:11:55,630 INFO L138 Inliner]: procedures = 167, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-14 10:11:55,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:11:55,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:11:55,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:11:55,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:11:55,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55" (1/1) ... [2022-12-14 10:11:55,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55" (1/1) ... [2022-12-14 10:11:55,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55" (1/1) ... [2022-12-14 10:11:55,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55" (1/1) ... [2022-12-14 10:11:55,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55" (1/1) ... [2022-12-14 10:11:55,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55" (1/1) ... [2022-12-14 10:11:55,655 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55" (1/1) ... [2022-12-14 10:11:55,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55" (1/1) ... [2022-12-14 10:11:55,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:11:55,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:11:55,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:11:55,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:11:55,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55" (1/1) ... [2022-12-14 10:11:55,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:11:55,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:11:55,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:11:55,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:11:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 10:11:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 10:11:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:11:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:11:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 10:11:55,719 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 10:11:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:11:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 10:11:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 10:11:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-14 10:11:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:11:55,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:11:55,720 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 10:11:55,828 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:11:55,830 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:11:55,975 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:11:55,980 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:11:55,980 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:11:55,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:11:55 BoogieIcfgContainer [2022-12-14 10:11:55,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:11:55,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:11:55,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:11:55,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:11:55,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:11:55" (1/3) ... [2022-12-14 10:11:55,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf507e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:11:55, skipping insertion in model container [2022-12-14 10:11:55,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:11:55" (2/3) ... [2022-12-14 10:11:55,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf507e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:11:55, skipping insertion in model container [2022-12-14 10:11:55,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:11:55" (3/3) ... [2022-12-14 10:11:55,987 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2022-12-14 10:11:56,001 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:11:56,001 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 10:11:56,001 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 10:11:56,046 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 10:11:56,070 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 10:11:56,081 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 72 transitions, 152 flow [2022-12-14 10:11:56,083 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 72 transitions, 152 flow [2022-12-14 10:11:56,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 152 flow [2022-12-14 10:11:56,116 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-12-14 10:11:56,116 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 10:11:56,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 2/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 38 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2022-12-14 10:11:56,120 INFO L119 LiptonReduction]: Number of co-enabled transitions 368 [2022-12-14 10:12:00,319 INFO L134 LiptonReduction]: Checked pairs total: 638 [2022-12-14 10:12:00,320 INFO L136 LiptonReduction]: Total number of compositions: 74 [2022-12-14 10:12:00,327 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 15 transitions, 38 flow [2022-12-14 10:12:00,335 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:00,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:12:00,354 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@722198c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:12:00,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 10:12:00,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:00,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 10:12:00,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:12:00,359 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 10:12:00,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-14 10:12:00,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:12:00,364 INFO L85 PathProgramCache]: Analyzing trace with hash 282, now seen corresponding path program 1 times [2022-12-14 10:12:00,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:12:00,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544797748] [2022-12-14 10:12:00,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:00,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 10:12:00,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:12:00,376 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 10:12:00,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 10:12:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:12:00,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 10:12:00,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:12:00,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:12:00,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:12:00,423 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 10:12:00,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544797748] [2022-12-14 10:12:00,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544797748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:12:00,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:12:00,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 10:12:00,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496200113] [2022-12-14 10:12:00,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:12:00,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:12:00,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 10:12:00,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:12:00,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:12:00,449 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:00,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:12:00,485 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2022-12-14 10:12:00,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:12:00,488 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-12-14 10:12:00,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:12:00,495 INFO L225 Difference]: With dead ends: 24 [2022-12-14 10:12:00,495 INFO L226 Difference]: Without dead ends: 24 [2022-12-14 10:12:00,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:12:00,499 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:12:00,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:12:00,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-14 10:12:00,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-14 10:12:00,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:00,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2022-12-14 10:12:00,532 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 35 transitions. Word has length 1 [2022-12-14 10:12:00,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:12:00,532 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 35 transitions. [2022-12-14 10:12:00,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:00,533 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-12-14 10:12:00,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 10:12:00,533 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:12:00,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 10:12:00,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:12:00,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 10:12:00,735 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-14 10:12:00,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:12:00,738 INFO L85 PathProgramCache]: Analyzing trace with hash 275777, now seen corresponding path program 1 times [2022-12-14 10:12:00,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:12:00,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910823196] [2022-12-14 10:12:00,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:00,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 10:12:00,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:12:00,747 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 10:12:00,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 10:12:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:12:00,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:12:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:12:00,968 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 10:12:00,968 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:12:00,970 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-12-14 10:12:00,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-12-14 10:12:00,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-12-14 10:12:00,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-12-14 10:12:00,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-12-14 10:12:00,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-12-14 10:12:00,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-14 10:12:00,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-12-14 10:12:00,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 10:12:01,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 10:12:01,181 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 10:12:01,187 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 10:12:01,187 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:12:01,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:12:01 BasicIcfg [2022-12-14 10:12:01,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:12:01,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:12:01,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:12:01,209 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:12:01,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:11:55" (3/4) ... [2022-12-14 10:12:01,214 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 10:12:01,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:12:01,215 INFO L158 Benchmark]: Toolchain (without parser) took 5940.35ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 28.5MB in the beginning and 53.8MB in the end (delta: -25.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:12:01,216 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:12:01,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.54ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 28.3MB in the beginning and 42.5MB in the end (delta: -14.2MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2022-12-14 10:12:01,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.34ms. Allocated memory is still 79.7MB. Free memory was 42.3MB in the beginning and 40.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:12:01,218 INFO L158 Benchmark]: Boogie Preprocessor took 29.52ms. Allocated memory is still 79.7MB. Free memory was 40.4MB in the beginning and 38.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:12:01,219 INFO L158 Benchmark]: RCFGBuilder took 320.49ms. Allocated memory is still 79.7MB. Free memory was 38.8MB in the beginning and 46.7MB in the end (delta: -7.8MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2022-12-14 10:12:01,220 INFO L158 Benchmark]: TraceAbstraction took 5224.43ms. Allocated memory is still 79.7MB. Free memory was 46.0MB in the beginning and 53.8MB in the end (delta: -7.9MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2022-12-14 10:12:01,220 INFO L158 Benchmark]: Witness Printer took 5.63ms. Allocated memory is still 79.7MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:12:01,224 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.54ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 28.3MB in the beginning and 42.5MB in the end (delta: -14.2MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.34ms. Allocated memory is still 79.7MB. Free memory was 42.3MB in the beginning and 40.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.52ms. Allocated memory is still 79.7MB. Free memory was 40.4MB in the beginning and 38.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 320.49ms. Allocated memory is still 79.7MB. Free memory was 38.8MB in the beginning and 46.7MB in the end (delta: -7.8MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5224.43ms. Allocated memory is still 79.7MB. Free memory was 46.0MB in the beginning and 53.8MB in the end (delta: -7.9MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 5.63ms. Allocated memory is still 79.7MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 74 PlacesBefore, 19 PlacesAfterwards, 72 TransitionsBefore, 15 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 638 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 466, independent: 413, independent conditional: 0, independent unconditional: 413, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 284, independent: 264, independent conditional: 0, independent unconditional: 264, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 284, independent: 259, independent conditional: 0, independent unconditional: 259, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 91, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 466, independent: 149, independent conditional: 0, independent unconditional: 149, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 284, unknown conditional: 0, unknown unconditional: 284] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, 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 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={7:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 0)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 10:12:01,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f6cdd5-6e1e-4221-ae18-510db32574e0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample