./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a 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_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R --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 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- 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-38b53e6 [2022-11-25 17:52:07,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:52:07,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:52:07,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:52:07,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:52:07,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:52:07,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:52:07,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:52:07,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:52:07,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:52:07,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:52:07,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:52:07,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:52:07,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:52:07,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:52:07,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:52:07,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:52:07,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:52:07,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:52:07,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:52:07,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:52:07,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:52:07,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:52:07,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:52:07,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:52:07,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:52:07,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:52:07,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:52:07,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:52:07,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:52:07,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:52:07,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:52:07,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:52:07,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:52:07,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:52:07,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:52:07,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:52:07,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:52:07,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:52:07,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:52:07,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:52:07,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-25 17:52:07,204 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:52:07,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:52:07,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:52:07,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:52:07,207 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:52:07,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:52:07,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:52:07,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:52:07,209 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:52:07,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:52:07,210 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:52:07,211 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:52:07,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:52:07,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:52:07,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:52:07,212 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 17:52:07,212 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 17:52:07,212 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 17:52:07,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:52:07,213 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:52:07,213 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:52:07,214 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:52:07,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:52:07,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:52:07,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:52:07,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:52:07,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:52:07,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:52:07,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:52:07,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:52:07,217 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:52:07,217 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:52:07,218 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:52:07,218 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_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2022-11-25 17:52:07,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:52:07,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:52:07,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:52:07,632 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:52:07,633 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:52:07,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-11-25 17:52:11,483 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:52:11,859 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:52:11,859 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-11-25 17:52:11,895 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/data/ae2ec57a1/f3def5195b63401dac80a7f11f11acfc/FLAGf2740c5b4 [2022-11-25 17:52:11,917 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/data/ae2ec57a1/f3def5195b63401dac80a7f11f11acfc [2022-11-25 17:52:11,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:52:11,925 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:52:11,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:52:11,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:52:11,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:52:11,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:52:11" (1/1) ... [2022-11-25 17:52:11,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5afcd246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:11, skipping insertion in model container [2022-11-25 17:52:11,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:52:11" (1/1) ... [2022-11-25 17:52:11,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:52:12,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:52:12,257 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_72e28e97-7b86-4007-b433-7208c21f72fa/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-11-25 17:52:12,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:52:12,449 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:52:12,464 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_72e28e97-7b86-4007-b433-7208c21f72fa/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-11-25 17:52:12,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:52:12,535 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:52:12,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:12 WrapperNode [2022-11-25 17:52:12,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:52:12,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:52:12,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:52:12,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:52:12,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:12" (1/1) ... [2022-11-25 17:52:12,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:12" (1/1) ... [2022-11-25 17:52:12,619 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-25 17:52:12,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:52:12,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:52:12,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:52:12,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:52:12,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:12" (1/1) ... [2022-11-25 17:52:12,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:12" (1/1) ... [2022-11-25 17:52:12,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:12" (1/1) ... [2022-11-25 17:52:12,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:12" (1/1) ... [2022-11-25 17:52:12,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:12" (1/1) ... [2022-11-25 17:52:12,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:12" (1/1) ... [2022-11-25 17:52:12,669 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:12" (1/1) ... [2022-11-25 17:52:12,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:12" (1/1) ... [2022-11-25 17:52:12,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:52:12,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:52:12,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:52:12,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:52:12,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:12" (1/1) ... [2022-11-25 17:52:12,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:52:12,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:52:12,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:52:12,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:52:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:52:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:52:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:52:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 17:52:12,786 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 17:52:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:52:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:52:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:52:12,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:52:12,788 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:52:13,042 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:52:13,057 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:52:13,274 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:52:13,291 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:52:13,291 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:52:13,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:52:13 BoogieIcfgContainer [2022-11-25 17:52:13,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:52:13,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:52:13,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:52:13,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:52:13,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:52:11" (1/3) ... [2022-11-25 17:52:13,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c6044d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:52:13, skipping insertion in model container [2022-11-25 17:52:13,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:12" (2/3) ... [2022-11-25 17:52:13,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c6044d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:52:13, skipping insertion in model container [2022-11-25 17:52:13,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:52:13" (3/3) ... [2022-11-25 17:52:13,311 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-11-25 17:52:13,336 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:52:13,336 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 17:52:13,337 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:52:13,397 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:52:13,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 49 transitions, 103 flow [2022-11-25 17:52:13,536 INFO L130 PetriNetUnfolder]: 1/48 cut-off events. [2022-11-25 17:52:13,537 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:52:13,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2022-11-25 17:52:13,543 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 49 transitions, 103 flow [2022-11-25 17:52:13,550 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 48 transitions, 99 flow [2022-11-25 17:52:13,556 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:52:13,602 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 48 transitions, 99 flow [2022-11-25 17:52:13,611 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 48 transitions, 99 flow [2022-11-25 17:52:13,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 99 flow [2022-11-25 17:52:13,628 INFO L130 PetriNetUnfolder]: 1/48 cut-off events. [2022-11-25 17:52:13,629 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:52:13,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2022-11-25 17:52:13,631 INFO L119 LiptonReduction]: Number of co-enabled transitions 352 [2022-11-25 17:52:16,241 INFO L134 LiptonReduction]: Checked pairs total: 265 [2022-11-25 17:52:16,242 INFO L136 LiptonReduction]: Total number of compositions: 54 [2022-11-25 17:52:16,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:52:16,293 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;@4d625464, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:52:16,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 17:52:16,295 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:52:16,295 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:52:16,296 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:52:16,296 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:52:16,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-11-25 17:52:16,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:52:16,305 INFO L85 PathProgramCache]: Analyzing trace with hash 205, now seen corresponding path program 1 times [2022-11-25 17:52:16,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:52:16,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033486648] [2022-11-25 17:52:16,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:52:16,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:52:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:52:16,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:52:16,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033486648] [2022-11-25 17:52:16,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033486648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:52:16,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:52:16,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:52:16,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31814626] [2022-11-25 17:52:16,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:52:16,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:52:16,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:52:16,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:52:16,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:52:16,537 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 103 [2022-11-25 17:52:16,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 8 transitions, 19 flow. Second operand has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:52:16,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:52:16,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 103 [2022-11-25 17:52:16,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:52:16,580 INFO L130 PetriNetUnfolder]: 4/14 cut-off events. [2022-11-25 17:52:16,581 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:52:16,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 14 events. 4/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 25 event pairs, 4 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 24. Up to 15 conditions per place. [2022-11-25 17:52:16,583 INFO L137 encePairwiseOnDemand]: 101/103 looper letters, 6 selfloop transitions, 0 changer transitions 0/6 dead transitions. [2022-11-25 17:52:16,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 6 transitions, 27 flow [2022-11-25 17:52:16,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:52:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:52:16,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 100 transitions. [2022-11-25 17:52:16,603 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4854368932038835 [2022-11-25 17:52:16,604 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 100 transitions. [2022-11-25 17:52:16,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 100 transitions. [2022-11-25 17:52:16,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:52:16,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 100 transitions. [2022-11-25 17:52:16,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:52:16,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:52:16,626 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:52:16,628 INFO L175 Difference]: Start difference. First operand has 12 places, 8 transitions, 19 flow. Second operand 2 states and 100 transitions. [2022-11-25 17:52:16,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 6 transitions, 27 flow [2022-11-25 17:52:16,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:52:16,633 INFO L231 Difference]: Finished difference. Result has 10 places, 6 transitions, 14 flow [2022-11-25 17:52:16,636 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=14, PETRI_PLACES=10, PETRI_TRANSITIONS=6} [2022-11-25 17:52:16,642 INFO L288 CegarLoopForPetriNet]: 12 programPoint places, -2 predicate places. [2022-11-25 17:52:16,642 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 6 transitions, 14 flow [2022-11-25 17:52:16,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:52:16,643 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:52:16,643 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:52:16,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:52:16,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-11-25 17:52:16,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:52:16,658 INFO L85 PathProgramCache]: Analyzing trace with hash 199929, now seen corresponding path program 1 times [2022-11-25 17:52:16,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:52:16,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466483153] [2022-11-25 17:52:16,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:52:16,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:52:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:52:16,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:52:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:52:16,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:52:16,811 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:52:16,814 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2022-11-25 17:52:16,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-11-25 17:52:16,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-11-25 17:52:16,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 6 remaining) [2022-11-25 17:52:16,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-11-25 17:52:16,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2022-11-25 17:52:16,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:52:16,821 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:52:16,836 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:52:16,837 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:52:16,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:52:16 BasicIcfg [2022-11-25 17:52:16,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:52:16,864 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:52:16,864 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:52:16,864 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:52:16,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:52:13" (3/4) ... [2022-11-25 17:52:16,868 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:52:16,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:52:16,870 INFO L158 Benchmark]: Toolchain (without parser) took 4944.66ms. Allocated memory is still 190.8MB. Free memory was 145.9MB in the beginning and 141.6MB in the end (delta: 4.3MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2022-11-25 17:52:16,870 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 132.1MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:52:16,871 INFO L158 Benchmark]: CACSL2BoogieTranslator took 607.92ms. Allocated memory is still 190.8MB. Free memory was 145.4MB in the beginning and 127.1MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 17:52:16,871 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.11ms. Allocated memory is still 190.8MB. Free memory was 127.1MB in the beginning and 125.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:52:16,872 INFO L158 Benchmark]: Boogie Preprocessor took 61.03ms. Allocated memory is still 190.8MB. Free memory was 125.5MB in the beginning and 123.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:52:16,873 INFO L158 Benchmark]: RCFGBuilder took 616.11ms. Allocated memory is still 190.8MB. Free memory was 123.9MB in the beginning and 112.9MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:52:16,873 INFO L158 Benchmark]: TraceAbstraction took 3561.97ms. Allocated memory is still 190.8MB. Free memory was 112.4MB in the beginning and 141.6MB in the end (delta: -29.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:52:16,874 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 190.8MB. Free memory is still 141.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:52:16,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 132.1MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 607.92ms. Allocated memory is still 190.8MB. Free memory was 145.4MB in the beginning and 127.1MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.11ms. Allocated memory is still 190.8MB. Free memory was 127.1MB in the beginning and 125.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.03ms. Allocated memory is still 190.8MB. Free memory was 125.5MB in the beginning and 123.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 616.11ms. Allocated memory is still 190.8MB. Free memory was 123.9MB in the beginning and 112.9MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3561.97ms. Allocated memory is still 190.8MB. Free memory was 112.4MB in the beginning and 141.6MB in the end (delta: -29.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 190.8MB. Free memory is still 141.6MB. 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: 2.6s, 51 PlacesBefore, 12 PlacesAfterwards, 48 TransitionsBefore, 8 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 265 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 265, independent: 265, independent conditional: 0, independent unconditional: 265, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 218, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 218, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 265, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 218, unknown conditional: 0, unknown unconditional: 218] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 690]: 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, 66 locations, 6 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: 3.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, 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, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 6 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=19occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 17:52:16,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/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_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R --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 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- 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-38b53e6 [2022-11-25 17:52:19,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:52:19,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:52:19,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:52:19,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:52:19,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:52:19,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:52:19,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:52:19,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:52:19,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:52:19,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:52:19,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:52:19,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:52:19,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:52:19,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:52:19,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:52:19,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:52:19,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:52:19,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:52:19,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:52:19,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:52:19,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:52:19,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:52:19,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:52:19,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:52:19,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:52:19,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:52:19,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:52:19,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:52:19,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:52:19,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:52:19,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:52:20,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:52:20,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:52:20,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:52:20,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:52:20,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:52:20,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:52:20,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:52:20,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:52:20,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:52:20,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-25 17:52:20,060 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:52:20,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:52:20,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:52:20,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:52:20,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:52:20,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:52:20,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:52:20,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:52:20,066 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:52:20,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:52:20,066 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:52:20,067 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:52:20,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:52:20,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:52:20,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:52:20,068 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 17:52:20,069 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 17:52:20,069 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 17:52:20,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:52:20,070 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:52:20,070 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:52:20,071 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:52:20,071 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:52:20,071 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:52:20,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:52:20,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:52:20,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:52:20,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:52:20,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:52:20,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:52:20,074 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:52:20,075 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:52:20,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:52:20,076 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:52:20,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:52:20,076 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:52:20,077 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_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2022-11-25 17:52:20,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:52:20,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:52:20,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:52:20,592 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:52:20,593 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:52:20,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-11-25 17:52:24,335 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:52:24,712 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:52:24,712 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-11-25 17:52:24,742 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/data/bfd26245b/f13710eed11b47fab243d70ca48ffd28/FLAG156e9d39a [2022-11-25 17:52:24,761 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/data/bfd26245b/f13710eed11b47fab243d70ca48ffd28 [2022-11-25 17:52:24,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:52:24,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:52:24,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:52:24,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:52:24,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:52:24,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:52:24" (1/1) ... [2022-11-25 17:52:24,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69052cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:24, skipping insertion in model container [2022-11-25 17:52:24,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:52:24" (1/1) ... [2022-11-25 17:52:24,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:52:24,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:52:25,050 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_72e28e97-7b86-4007-b433-7208c21f72fa/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-11-25 17:52:25,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:52:25,405 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:52:25,427 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_72e28e97-7b86-4007-b433-7208c21f72fa/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-11-25 17:52:25,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:52:25,507 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:52:25,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:25 WrapperNode [2022-11-25 17:52:25,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:52:25,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:52:25,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:52:25,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:52:25,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:25" (1/1) ... [2022-11-25 17:52:25,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:25" (1/1) ... [2022-11-25 17:52:25,625 INFO L138 Inliner]: procedures = 165, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-25 17:52:25,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:52:25,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:52:25,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:52:25,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:52:25,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:25" (1/1) ... [2022-11-25 17:52:25,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:25" (1/1) ... [2022-11-25 17:52:25,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:25" (1/1) ... [2022-11-25 17:52:25,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:25" (1/1) ... [2022-11-25 17:52:25,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:25" (1/1) ... [2022-11-25 17:52:25,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:25" (1/1) ... [2022-11-25 17:52:25,686 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:25" (1/1) ... [2022-11-25 17:52:25,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:25" (1/1) ... [2022-11-25 17:52:25,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:52:25,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:52:25,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:52:25,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:52:25,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:25" (1/1) ... [2022-11-25 17:52:25,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:52:25,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:52:25,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:52:25,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:52:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:52:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:52:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 17:52:25,837 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 17:52:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:52:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 17:52:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:52:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:52:25,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:52:25,842 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:52:26,065 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:52:26,068 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:52:26,230 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:52:26,239 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:52:26,239 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:52:26,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:52:26 BoogieIcfgContainer [2022-11-25 17:52:26,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:52:26,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:52:26,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:52:26,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:52:26,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:52:24" (1/3) ... [2022-11-25 17:52:26,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6950dbe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:52:26, skipping insertion in model container [2022-11-25 17:52:26,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:25" (2/3) ... [2022-11-25 17:52:26,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6950dbe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:52:26, skipping insertion in model container [2022-11-25 17:52:26,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:52:26" (3/3) ... [2022-11-25 17:52:26,254 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-11-25 17:52:26,280 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:52:26,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 17:52:26,280 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:52:26,344 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:52:26,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 49 transitions, 103 flow [2022-11-25 17:52:26,509 INFO L130 PetriNetUnfolder]: 1/48 cut-off events. [2022-11-25 17:52:26,512 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:52:26,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2022-11-25 17:52:26,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 49 transitions, 103 flow [2022-11-25 17:52:26,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 48 transitions, 99 flow [2022-11-25 17:52:26,532 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:52:26,567 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 48 transitions, 99 flow [2022-11-25 17:52:26,582 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 48 transitions, 99 flow [2022-11-25 17:52:26,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 99 flow [2022-11-25 17:52:26,615 INFO L130 PetriNetUnfolder]: 1/48 cut-off events. [2022-11-25 17:52:26,621 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:52:26,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2022-11-25 17:52:26,626 INFO L119 LiptonReduction]: Number of co-enabled transitions 330 [2022-11-25 17:52:31,103 INFO L134 LiptonReduction]: Checked pairs total: 264 [2022-11-25 17:52:31,103 INFO L136 LiptonReduction]: Total number of compositions: 56 [2022-11-25 17:52:31,124 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:52:31,132 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;@6cbc222c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:52:31,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 17:52:31,135 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-11-25 17:52:31,136 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:52:31,136 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:52:31,137 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:52:31,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-11-25 17:52:31,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:52:31,145 INFO L85 PathProgramCache]: Analyzing trace with hash 205, now seen corresponding path program 1 times [2022-11-25 17:52:31,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:52:31,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923383555] [2022-11-25 17:52:31,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:52:31,162 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 [2022-11-25 17:52:31,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:52:31,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:52:31,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:52:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:31,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 17:52:31,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:52:31,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:52:31,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:52:31,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:52:31,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923383555] [2022-11-25 17:52:31,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [923383555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:52:31,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:52:31,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:52:31,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255964706] [2022-11-25 17:52:31,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:52:31,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:52:31,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:52:31,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:52:31,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:52:31,312 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 105 [2022-11-25 17:52:31,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 8 transitions, 19 flow. Second operand has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:52:31,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:52:31,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 105 [2022-11-25 17:52:31,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:52:31,346 INFO L130 PetriNetUnfolder]: 4/14 cut-off events. [2022-11-25 17:52:31,347 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:52:31,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 14 events. 4/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 25 event pairs, 4 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 24. Up to 15 conditions per place. [2022-11-25 17:52:31,348 INFO L137 encePairwiseOnDemand]: 103/105 looper letters, 6 selfloop transitions, 0 changer transitions 0/6 dead transitions. [2022-11-25 17:52:31,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 6 transitions, 27 flow [2022-11-25 17:52:31,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:52:31,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:52:31,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 100 transitions. [2022-11-25 17:52:31,364 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2022-11-25 17:52:31,365 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 100 transitions. [2022-11-25 17:52:31,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 100 transitions. [2022-11-25 17:52:31,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:52:31,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 100 transitions. [2022-11-25 17:52:31,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:52:31,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:52:31,378 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:52:31,381 INFO L175 Difference]: Start difference. First operand has 12 places, 8 transitions, 19 flow. Second operand 2 states and 100 transitions. [2022-11-25 17:52:31,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 6 transitions, 27 flow [2022-11-25 17:52:31,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:52:31,386 INFO L231 Difference]: Finished difference. Result has 10 places, 6 transitions, 14 flow [2022-11-25 17:52:31,389 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=14, PETRI_PLACES=10, PETRI_TRANSITIONS=6} [2022-11-25 17:52:31,393 INFO L288 CegarLoopForPetriNet]: 12 programPoint places, -2 predicate places. [2022-11-25 17:52:31,393 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 6 transitions, 14 flow [2022-11-25 17:52:31,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:52:31,394 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:52:31,394 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:52:31,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:52:31,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:52:31,609 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-11-25 17:52:31,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:52:31,610 INFO L85 PathProgramCache]: Analyzing trace with hash 199903, now seen corresponding path program 1 times [2022-11-25 17:52:31,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:52:31,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134900874] [2022-11-25 17:52:31,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:52:31,611 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 [2022-11-25 17:52:31,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:52:31,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:52:31,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:52:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:52:31,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:52:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:52:31,754 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 17:52:31,754 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:52:31,757 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2022-11-25 17:52:31,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-11-25 17:52:31,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-11-25 17:52:31,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 6 remaining) [2022-11-25 17:52:31,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-11-25 17:52:31,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2022-11-25 17:52:31,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/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)] Forceful destruction successful, exit code 0 [2022-11-25 17:52:31,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:52:31,974 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:52:31,981 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:52:31,981 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:52:32,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:52:32 BasicIcfg [2022-11-25 17:52:32,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:52:32,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:52:32,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:52:32,003 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:52:32,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:52:26" (3/4) ... [2022-11-25 17:52:32,007 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:52:32,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:52:32,008 INFO L158 Benchmark]: Toolchain (without parser) took 7241.79ms. Allocated memory was 69.2MB in the beginning and 104.9MB in the end (delta: 35.7MB). Free memory was 46.5MB in the beginning and 60.5MB in the end (delta: -14.0MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-11-25 17:52:32,009 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 69.2MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:52:32,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 740.08ms. Allocated memory is still 69.2MB. Free memory was 46.3MB in the beginning and 27.2MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 17:52:32,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.97ms. Allocated memory was 69.2MB in the beginning and 104.9MB in the end (delta: 35.7MB). Free memory was 27.0MB in the beginning and 84.0MB in the end (delta: -57.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-11-25 17:52:32,011 INFO L158 Benchmark]: Boogie Preprocessor took 71.78ms. Allocated memory is still 104.9MB. Free memory was 84.0MB in the beginning and 82.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:52:32,012 INFO L158 Benchmark]: RCFGBuilder took 542.62ms. Allocated memory is still 104.9MB. Free memory was 82.4MB in the beginning and 70.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:52:32,012 INFO L158 Benchmark]: TraceAbstraction took 5756.82ms. Allocated memory is still 104.9MB. Free memory was 69.4MB in the beginning and 61.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2022-11-25 17:52:32,013 INFO L158 Benchmark]: Witness Printer took 4.63ms. Allocated memory is still 104.9MB. Free memory was 61.1MB in the beginning and 60.5MB in the end (delta: 579.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:52:32,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 69.2MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 740.08ms. Allocated memory is still 69.2MB. Free memory was 46.3MB in the beginning and 27.2MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.97ms. Allocated memory was 69.2MB in the beginning and 104.9MB in the end (delta: 35.7MB). Free memory was 27.0MB in the beginning and 84.0MB in the end (delta: -57.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.78ms. Allocated memory is still 104.9MB. Free memory was 84.0MB in the beginning and 82.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.62ms. Allocated memory is still 104.9MB. Free memory was 82.4MB in the beginning and 70.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5756.82ms. Allocated memory is still 104.9MB. Free memory was 69.4MB in the beginning and 61.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Witness Printer took 4.63ms. Allocated memory is still 104.9MB. Free memory was 61.1MB in the beginning and 60.5MB in the end (delta: 579.3kB). 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: 4.5s, 51 PlacesBefore, 12 PlacesAfterwards, 48 TransitionsBefore, 8 TransitionsAfterwards, 330 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 264 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 264, independent: 264, independent conditional: 0, independent unconditional: 264, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 206, independent: 206, independent conditional: 0, independent unconditional: 206, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 206, independent: 206, independent conditional: 0, independent unconditional: 206, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 264, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 206, unknown conditional: 0, unknown unconditional: 206] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 690]: 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, 65 locations, 6 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: 5.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, 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, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 6 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=19occurred 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 17:52:32,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e28e97-7b86-4007-b433-7208c21f72fa/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample