./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.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_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --- 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 [2022-12-13 16:57:49,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:57:49,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:57:49,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:57:49,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:57:49,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:57:49,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:57:49,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:57:49,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:57:49,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:57:49,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:57:49,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:57:49,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:57:49,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:57:49,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:57:49,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:57:49,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:57:49,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:57:49,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:57:49,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:57:49,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:57:49,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:57:49,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:57:49,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:57:49,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:57:49,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:57:49,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:57:49,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:57:49,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:57:49,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:57:49,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:57:49,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:57:49,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:57:49,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:57:49,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:57:49,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:57:49,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:57:49,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:57:49,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:57:49,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:57:49,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:57:49,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 16:57:49,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:57:49,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:57:49,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:57:49,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:57:49,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:57:49,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:57:49,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:57:49,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:57:49,166 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:57:49,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:57:49,166 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:57:49,166 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:57:49,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:57:49,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:57:49,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:57:49,167 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 16:57:49,167 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 16:57:49,167 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 16:57:49,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:57:49,167 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 16:57:49,168 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:57:49,168 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:57:49,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:57:49,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:57:49,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:57:49,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:57:49,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:57:49,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:57:49,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:57:49,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:57:49,169 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:57:49,169 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:57:49,169 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:57:49,170 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:57:49,170 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2022-12-13 16:57:49,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:57:49,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:57:49,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:57:49,383 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:57:49,384 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:57:49,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-13 16:57:52,003 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:57:52,156 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:57:52,156 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-13 16:57:52,164 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/data/5fc9b7079/0a15035ca29d45e8bce3e2c8cc94f9ee/FLAG615927656 [2022-12-13 16:57:52,176 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/data/5fc9b7079/0a15035ca29d45e8bce3e2c8cc94f9ee [2022-12-13 16:57:52,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:57:52,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:57:52,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:57:52,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:57:52,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:57:52,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:57:52" (1/1) ... [2022-12-13 16:57:52,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2474949f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52, skipping insertion in model container [2022-12-13 16:57:52,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:57:52" (1/1) ... [2022-12-13 16:57:52,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:57:52,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:57:52,333 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_b51b0d13-7405-4ec0-a259-39142e2eb443/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-12-13 16:57:52,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:57:52,435 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:57:52,444 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_b51b0d13-7405-4ec0-a259-39142e2eb443/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-12-13 16:57:52,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:57:52,484 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:57:52,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52 WrapperNode [2022-12-13 16:57:52,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:57:52,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:57:52,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:57:52,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:57:52,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52" (1/1) ... [2022-12-13 16:57:52,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52" (1/1) ... [2022-12-13 16:57:52,513 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-12-13 16:57:52,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:57:52,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:57:52,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:57:52,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:57:52,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52" (1/1) ... [2022-12-13 16:57:52,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52" (1/1) ... [2022-12-13 16:57:52,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52" (1/1) ... [2022-12-13 16:57:52,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52" (1/1) ... [2022-12-13 16:57:52,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52" (1/1) ... [2022-12-13 16:57:52,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52" (1/1) ... [2022-12-13 16:57:52,526 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52" (1/1) ... [2022-12-13 16:57:52,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52" (1/1) ... [2022-12-13 16:57:52,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:57:52,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:57:52,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:57:52,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:57:52,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52" (1/1) ... [2022-12-13 16:57:52,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:57:52,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:52,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:52,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:57:52,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:57:52,584 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 16:57:52,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:57:52,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:57:52,585 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 16:57:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 16:57:52,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:57:52,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:57:52,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:57:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:57:52,586 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 16:57:52,698 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:57:52,700 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:57:52,821 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:57:52,826 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:57:52,827 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:57:52,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:57:52 BoogieIcfgContainer [2022-12-13 16:57:52,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:57:52,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:57:52,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:57:52,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:57:52,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:57:52" (1/3) ... [2022-12-13 16:57:52,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb3a96e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:57:52, skipping insertion in model container [2022-12-13 16:57:52,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:52" (2/3) ... [2022-12-13 16:57:52,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb3a96e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:57:52, skipping insertion in model container [2022-12-13 16:57:52,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:57:52" (3/3) ... [2022-12-13 16:57:52,835 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-13 16:57:52,849 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:57:52,849 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 16:57:52,849 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:57:52,884 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 16:57:52,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 84 transitions, 173 flow [2022-12-13 16:57:52,940 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-13 16:57:52,940 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:57:52,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2022-12-13 16:57:52,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 84 transitions, 173 flow [2022-12-13 16:57:52,946 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 78 transitions, 159 flow [2022-12-13 16:57:52,948 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:57:52,956 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 78 transitions, 159 flow [2022-12-13 16:57:52,958 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 78 transitions, 159 flow [2022-12-13 16:57:52,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 159 flow [2022-12-13 16:57:52,975 INFO L130 PetriNetUnfolder]: 2/78 cut-off events. [2022-12-13 16:57:52,975 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:57:52,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-12-13 16:57:52,976 INFO L119 LiptonReduction]: Number of co-enabled transitions 580 [2022-12-13 16:57:54,999 INFO L134 LiptonReduction]: Checked pairs total: 1543 [2022-12-13 16:57:54,999 INFO L136 LiptonReduction]: Total number of compositions: 77 [2022-12-13 16:57:55,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:57:55,018 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=PETRI_NET, 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;@3a2281b9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:57:55,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 16:57:55,020 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 16:57:55,020 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:57:55,020 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:57:55,020 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 16:57:55,021 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-13 16:57:55,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:55,025 INFO L85 PathProgramCache]: Analyzing trace with hash 295, now seen corresponding path program 1 times [2022-12-13 16:57:55,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:55,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776099905] [2022-12-13 16:57:55,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:55,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:55,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:55,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:57:55,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776099905] [2022-12-13 16:57:55,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776099905] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:57:55,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:57:55,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 16:57:55,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947223787] [2022-12-13 16:57:55,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:57:55,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:57:55,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:57:55,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:57:55,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:57:55,142 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 161 [2022-12-13 16:57:55,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 43 flow. Second operand has 2 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 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) [2022-12-13 16:57:55,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:57:55,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 161 [2022-12-13 16:57:55,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:57:55,178 INFO L130 PetriNetUnfolder]: 28/75 cut-off events. [2022-12-13 16:57:55,178 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:57:55,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 75 events. 28/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 274 event pairs, 24 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 136. Up to 66 conditions per place. [2022-12-13 16:57:55,181 INFO L137 encePairwiseOnDemand]: 159/161 looper letters, 14 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2022-12-13 16:57:55,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 67 flow [2022-12-13 16:57:55,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:57:55,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 16:57:55,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 178 transitions. [2022-12-13 16:57:55,190 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5527950310559007 [2022-12-13 16:57:55,190 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 178 transitions. [2022-12-13 16:57:55,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 178 transitions. [2022-12-13 16:57:55,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:57:55,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 178 transitions. [2022-12-13 16:57:55,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 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) [2022-12-13 16:57:55,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) [2022-12-13 16:57:55,198 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) [2022-12-13 16:57:55,199 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 43 flow. Second operand 2 states and 178 transitions. [2022-12-13 16:57:55,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 67 flow [2022-12-13 16:57:55,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:57:55,202 INFO L231 Difference]: Finished difference. Result has 21 places, 18 transitions, 38 flow [2022-12-13 16:57:55,204 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=21, PETRI_TRANSITIONS=18} [2022-12-13 16:57:55,206 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, -2 predicate places. [2022-12-13 16:57:55,207 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 38 flow [2022-12-13 16:57:55,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 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) [2022-12-13 16:57:55,207 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:57:55,207 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 16:57:55,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:57:55,207 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-13 16:57:55,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:55,208 INFO L85 PathProgramCache]: Analyzing trace with hash 8044239, now seen corresponding path program 1 times [2022-12-13 16:57:55,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:55,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664331766] [2022-12-13 16:57:55,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:55,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:55,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:55,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:55,268 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:57:55,269 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2022-12-13 16:57:55,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-12-13 16:57:55,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2022-12-13 16:57:55,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-12-13 16:57:55,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-13 16:57:55,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:57:55,272 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 16:57:55,276 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 16:57:55,276 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:57:55,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:57:55 BasicIcfg [2022-12-13 16:57:55,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:57:55,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:57:55,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:57:55,290 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:57:55,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:57:52" (3/4) ... [2022-12-13 16:57:55,292 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:57:55,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:57:55,293 INFO L158 Benchmark]: Toolchain (without parser) took 3114.40ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 82.7MB in the beginning and 80.2MB in the end (delta: 2.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-12-13 16:57:55,293 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory was 97.0MB in the beginning and 97.0MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:57:55,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.71ms. Allocated memory is still 125.8MB. Free memory was 82.5MB in the beginning and 63.5MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 16:57:55,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.29ms. Allocated memory is still 125.8MB. Free memory was 63.3MB in the beginning and 61.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:57:55,294 INFO L158 Benchmark]: Boogie Preprocessor took 15.29ms. Allocated memory is still 125.8MB. Free memory was 61.3MB in the beginning and 60.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:57:55,295 INFO L158 Benchmark]: RCFGBuilder took 299.18ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 60.0MB in the beginning and 115.5MB in the end (delta: -55.5MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-12-13 16:57:55,295 INFO L158 Benchmark]: TraceAbstraction took 2459.53ms. Allocated memory is still 151.0MB. Free memory was 114.9MB in the beginning and 80.2MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2022-12-13 16:57:55,295 INFO L158 Benchmark]: Witness Printer took 2.71ms. Allocated memory is still 151.0MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:57:55,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory was 97.0MB in the beginning and 97.0MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.71ms. Allocated memory is still 125.8MB. Free memory was 82.5MB in the beginning and 63.5MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.29ms. Allocated memory is still 125.8MB. Free memory was 63.3MB in the beginning and 61.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.29ms. Allocated memory is still 125.8MB. Free memory was 61.3MB in the beginning and 60.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.18ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 60.0MB in the beginning and 115.5MB in the end (delta: -55.5MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2459.53ms. Allocated memory is still 151.0MB. Free memory was 114.9MB in the beginning and 80.2MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * Witness Printer took 2.71ms. Allocated memory is still 151.0MB. Free memory is still 80.2MB. 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: 2.0s, 80 PlacesBefore, 23 PlacesAfterwards, 78 TransitionsBefore, 20 TransitionsAfterwards, 580 CoEnabledTransitionPairs, 6 FixpointIterations, 45 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 1543 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 589, independent: 444, independent conditional: 0, independent unconditional: 444, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 304, independent: 273, independent conditional: 0, independent unconditional: 273, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 589, independent: 171, independent conditional: 0, independent unconditional: 171, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 304, unknown conditional: 0, unknown unconditional: 304] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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 g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] - 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: 693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: 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, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, 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, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 14 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=43occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 [2022-12-13 16:57:55,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/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_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --- 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 [2022-12-13 16:57:56,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:57:56,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:57:56,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:57:56,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:57:56,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:57:56,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:57:56,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:57:56,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:57:56,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:57:56,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:57:56,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:57:56,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:57:56,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:57:56,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:57:56,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:57:56,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:57:56,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:57:56,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:57:56,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:57:56,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:57:56,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:57:56,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:57:56,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:57:56,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:57:56,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:57:56,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:57:56,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:57:56,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:57:56,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:57:56,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:57:56,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:57:56,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:57:56,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:57:56,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:57:56,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:57:56,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:57:56,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:57:56,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:57:56,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:57:56,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:57:56,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 16:57:56,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:57:56,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:57:56,954 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:57:56,954 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:57:56,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:57:56,955 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:57:56,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:57:56,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:57:56,956 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:57:56,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:57:56,956 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:57:56,956 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:57:56,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:57:56,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:57:56,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:57:56,957 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 16:57:56,957 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 16:57:56,957 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 16:57:56,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:57:56,957 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 16:57:56,957 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 16:57:56,957 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 16:57:56,957 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:57:56,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:57:56,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:57:56,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:57:56,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:57:56,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:57:56,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:57:56,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:57:56,958 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 16:57:56,959 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 16:57:56,959 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:57:56,959 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:57:56,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:57:56,959 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 16:57:56,959 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:57:56,959 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2022-12-13 16:57:57,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:57:57,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:57:57,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:57:57,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:57:57,205 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:57:57,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-13 16:57:59,752 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:57:59,914 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:57:59,914 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-13 16:57:59,923 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/data/15c3ce4a6/863d77ef617f4f93877ed745bf2923e1/FLAG6649ea13b [2022-12-13 16:57:59,934 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/data/15c3ce4a6/863d77ef617f4f93877ed745bf2923e1 [2022-12-13 16:57:59,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:57:59,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:57:59,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:57:59,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:57:59,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:57:59,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:57:59" (1/1) ... [2022-12-13 16:57:59,943 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 13.12 04:57:59, skipping insertion in model container [2022-12-13 16:57:59,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:57:59" (1/1) ... [2022-12-13 16:57:59,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:57:59,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:58:00,084 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_b51b0d13-7405-4ec0-a259-39142e2eb443/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-12-13 16:58:00,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:58:00,202 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:58:00,211 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_b51b0d13-7405-4ec0-a259-39142e2eb443/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-12-13 16:58:00,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:58:00,256 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:58:00,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:58:00 WrapperNode [2022-12-13 16:58:00,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:58:00,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:58:00,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:58:00,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:58:00,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:58:00" (1/1) ... [2022-12-13 16:58:00,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:58:00" (1/1) ... [2022-12-13 16:58:00,288 INFO L138 Inliner]: procedures = 167, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-12-13 16:58:00,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:58:00,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:58:00,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:58:00,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:58:00,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:58:00" (1/1) ... [2022-12-13 16:58:00,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:58:00" (1/1) ... [2022-12-13 16:58:00,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:58:00" (1/1) ... [2022-12-13 16:58:00,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:58:00" (1/1) ... [2022-12-13 16:58:00,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:58:00" (1/1) ... [2022-12-13 16:58:00,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:58:00" (1/1) ... [2022-12-13 16:58:00,304 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:58:00" (1/1) ... [2022-12-13 16:58:00,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:58:00" (1/1) ... [2022-12-13 16:58:00,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:58:00,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:58:00,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:58:00,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:58:00,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:58:00" (1/1) ... [2022-12-13 16:58:00,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:58:00,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:58:00,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:58:00,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:58:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 16:58:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:58:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:58:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 16:58:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 16:58:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:58:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 16:58:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 16:58:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-13 16:58:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:58:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:58:00,366 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 16:58:00,478 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:58:00,480 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:58:00,668 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:58:00,673 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:58:00,673 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:58:00,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:58:00 BoogieIcfgContainer [2022-12-13 16:58:00,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:58:00,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:58:00,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:58:00,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:58:00,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:57:59" (1/3) ... [2022-12-13 16:58:00,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9b38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:58:00, skipping insertion in model container [2022-12-13 16:58:00,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:58:00" (2/3) ... [2022-12-13 16:58:00,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9b38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:58:00, skipping insertion in model container [2022-12-13 16:58:00,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:58:00" (3/3) ... [2022-12-13 16:58:00,681 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-13 16:58:00,695 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:58:00,695 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 16:58:00,695 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:58:00,733 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 16:58:00,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 84 transitions, 173 flow [2022-12-13 16:58:00,787 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-13 16:58:00,788 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:58:00,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2022-12-13 16:58:00,791 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 84 transitions, 173 flow [2022-12-13 16:58:00,794 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 78 transitions, 159 flow [2022-12-13 16:58:00,797 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:58:00,804 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 78 transitions, 159 flow [2022-12-13 16:58:00,806 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 78 transitions, 159 flow [2022-12-13 16:58:00,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 159 flow [2022-12-13 16:58:00,821 INFO L130 PetriNetUnfolder]: 2/78 cut-off events. [2022-12-13 16:58:00,821 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:58:00,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-12-13 16:58:00,822 INFO L119 LiptonReduction]: Number of co-enabled transitions 580 [2022-12-13 16:58:04,842 INFO L134 LiptonReduction]: Checked pairs total: 1533 [2022-12-13 16:58:04,842 INFO L136 LiptonReduction]: Total number of compositions: 75 [2022-12-13 16:58:04,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:58:04,857 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=PETRI_NET, 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;@5c41db75, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:58:04,857 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 16:58:04,858 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 16:58:04,858 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:58:04,858 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:58:04,859 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 16:58:04,859 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-13 16:58:04,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:58:04,863 INFO L85 PathProgramCache]: Analyzing trace with hash 293, now seen corresponding path program 1 times [2022-12-13 16:58:04,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:58:04,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501619698] [2022-12-13 16:58:04,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:58:04,871 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 [2022-12-13 16:58:04,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:58:04,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:58:04,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:58:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:58:04,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 16:58:04,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:58:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:58:04,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:58:04,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:58:04,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501619698] [2022-12-13 16:58:04,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501619698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:58:04,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:58:04,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 16:58:04,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369175689] [2022-12-13 16:58:04,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:58:04,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:58:04,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:58:04,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:58:04,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:58:04,947 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 159 [2022-12-13 16:58:04,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 43 flow. Second operand has 2 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 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) [2022-12-13 16:58:04,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:58:04,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 159 [2022-12-13 16:58:04,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:58:04,997 INFO L130 PetriNetUnfolder]: 28/77 cut-off events. [2022-12-13 16:58:04,997 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:58:04,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 77 events. 28/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 278 event pairs, 24 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 138. Up to 66 conditions per place. [2022-12-13 16:58:04,999 INFO L137 encePairwiseOnDemand]: 157/159 looper letters, 14 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2022-12-13 16:58:04,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 67 flow [2022-12-13 16:58:05,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:58:05,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 16:58:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 178 transitions. [2022-12-13 16:58:05,012 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.559748427672956 [2022-12-13 16:58:05,013 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 178 transitions. [2022-12-13 16:58:05,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 178 transitions. [2022-12-13 16:58:05,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:58:05,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 178 transitions. [2022-12-13 16:58:05,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 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) [2022-12-13 16:58:05,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2022-12-13 16:58:05,025 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2022-12-13 16:58:05,027 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 43 flow. Second operand 2 states and 178 transitions. [2022-12-13 16:58:05,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 67 flow [2022-12-13 16:58:05,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:58:05,031 INFO L231 Difference]: Finished difference. Result has 21 places, 18 transitions, 38 flow [2022-12-13 16:58:05,033 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=21, PETRI_TRANSITIONS=18} [2022-12-13 16:58:05,037 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, -2 predicate places. [2022-12-13 16:58:05,037 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 38 flow [2022-12-13 16:58:05,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 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) [2022-12-13 16:58:05,037 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:58:05,037 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 16:58:05,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:58:05,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:58:05,240 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-13 16:58:05,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:58:05,241 INFO L85 PathProgramCache]: Analyzing trace with hash 7835694, now seen corresponding path program 1 times [2022-12-13 16:58:05,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:58:05,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79241250] [2022-12-13 16:58:05,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:58:05,244 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 [2022-12-13 16:58:05,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:58:05,247 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:58:05,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:58:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:58:05,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:58:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:58:05,393 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 16:58:05,393 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:58:05,395 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2022-12-13 16:58:05,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-12-13 16:58:05,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2022-12-13 16:58:05,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-12-13 16:58:05,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-13 16:58:05,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:58:05,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:58:05,599 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 16:58:05,605 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 16:58:05,605 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:58:05,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:58:05 BasicIcfg [2022-12-13 16:58:05,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:58:05,635 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:58:05,635 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:58:05,635 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:58:05,635 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:58:00" (3/4) ... [2022-12-13 16:58:05,639 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:58:05,639 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:58:05,639 INFO L158 Benchmark]: Toolchain (without parser) took 5701.75ms. Allocated memory is still 109.1MB. Free memory was 88.7MB in the beginning and 49.4MB in the end (delta: 39.4MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2022-12-13 16:58:05,640 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory is still 37.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:58:05,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.50ms. Allocated memory is still 109.1MB. Free memory was 88.4MB in the beginning and 68.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 16:58:05,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.60ms. Allocated memory is still 109.1MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:58:05,641 INFO L158 Benchmark]: Boogie Preprocessor took 18.69ms. Allocated memory is still 109.1MB. Free memory was 66.4MB in the beginning and 64.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:58:05,642 INFO L158 Benchmark]: RCFGBuilder took 367.16ms. Allocated memory is still 109.1MB. Free memory was 64.8MB in the beginning and 76.9MB in the end (delta: -12.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-12-13 16:58:05,643 INFO L158 Benchmark]: TraceAbstraction took 4957.94ms. Allocated memory is still 109.1MB. Free memory was 76.0MB in the beginning and 50.4MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 16:58:05,643 INFO L158 Benchmark]: Witness Printer took 4.15ms. Allocated memory is still 109.1MB. Free memory was 50.4MB in the beginning and 49.4MB in the end (delta: 994.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:58:05,647 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 58.7MB. Free memory is still 37.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.50ms. Allocated memory is still 109.1MB. Free memory was 88.4MB in the beginning and 68.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.60ms. Allocated memory is still 109.1MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.69ms. Allocated memory is still 109.1MB. Free memory was 66.4MB in the beginning and 64.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 367.16ms. Allocated memory is still 109.1MB. Free memory was 64.8MB in the beginning and 76.9MB in the end (delta: -12.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4957.94ms. Allocated memory is still 109.1MB. Free memory was 76.0MB in the beginning and 50.4MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.15ms. Allocated memory is still 109.1MB. Free memory was 50.4MB in the beginning and 49.4MB in the end (delta: 994.6kB). 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: 4.0s, 80 PlacesBefore, 23 PlacesAfterwards, 78 TransitionsBefore, 20 TransitionsAfterwards, 580 CoEnabledTransitionPairs, 6 FixpointIterations, 43 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 1533 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 590, independent: 447, independent conditional: 0, independent unconditional: 447, dependent: 143, dependent conditional: 0, dependent unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 307, independent: 279, independent conditional: 0, independent unconditional: 279, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 590, independent: 168, independent conditional: 0, independent unconditional: 168, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 307, unknown conditional: 0, unknown unconditional: 307] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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 g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={7:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] - 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: 693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: 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, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, 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, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 14 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=43occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 [2022-12-13 16:58:05,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b51b0d13-7405-4ec0-a259-39142e2eb443/bin/uautomizer-uyxdKDjOR8/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