./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b 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_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro --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 f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- 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-8393723 [2022-11-18 20:12:11,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:12:11,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:12:11,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:12:11,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:12:11,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:12:11,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:12:11,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:12:11,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:12:11,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:12:11,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:12:11,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:12:11,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:12:11,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:12:11,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:12:11,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:12:11,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:12:11,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:12:11,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:12:11,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:12:11,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:12:11,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:12:11,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:12:11,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:12:11,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:12:11,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:12:11,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:12:11,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:12:11,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:12:11,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:12:11,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:12:11,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:12:11,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:12:11,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:12:11,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:12:11,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:12:11,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:12:11,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:12:11,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:12:11,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:12:11,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:12:11,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 20:12:11,676 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:12:11,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:12:11,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:12:11,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:12:11,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:12:11,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:12:11,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:12:11,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:12:11,680 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:12:11,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:12:11,681 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:12:11,681 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:12:11,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:12:11,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:12:11,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:12:11,683 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:12:11,683 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:12:11,683 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:12:11,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:12:11,684 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:12:11,684 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:12:11,685 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:12:11,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:12:11,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:12:11,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:12:11,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:12:11,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:12:11,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:12:11,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:12:11,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:12:11,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2022-11-18 20:12:11,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:12:11,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:12:12,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:12:12,006 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:12:12,007 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:12:12,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2022-11-18 20:12:12,089 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/data/6c2e59f45/50d139958c5e4137bd0ac053cc06c756/FLAGe003370e9 [2022-11-18 20:12:12,738 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:12:12,739 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2022-11-18 20:12:12,753 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/data/6c2e59f45/50d139958c5e4137bd0ac053cc06c756/FLAGe003370e9 [2022-11-18 20:12:13,039 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/data/6c2e59f45/50d139958c5e4137bd0ac053cc06c756 [2022-11-18 20:12:13,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:12:13,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:12:13,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:12:13,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:12:13,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:12:13,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:12:13" (1/1) ... [2022-11-18 20:12:13,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@276d22ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13, skipping insertion in model container [2022-11-18 20:12:13,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:12:13" (1/1) ... [2022-11-18 20:12:13,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:12:13,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:12:13,665 WARN L234 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_feec85f1-d0c2-4828-adca-347aa3cc5155/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2022-11-18 20:12:13,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:12:13,777 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:12:13,829 WARN L234 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_feec85f1-d0c2-4828-adca-347aa3cc5155/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2022-11-18 20:12:13,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:12:13,934 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:12:13,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13 WrapperNode [2022-11-18 20:12:13,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:12:13,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:12:13,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:12:13,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:12:13,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13" (1/1) ... [2022-11-18 20:12:13,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13" (1/1) ... [2022-11-18 20:12:14,053 INFO L138 Inliner]: procedures = 279, calls = 88, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 378 [2022-11-18 20:12:14,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:12:14,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:12:14,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:12:14,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:12:14,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13" (1/1) ... [2022-11-18 20:12:14,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13" (1/1) ... [2022-11-18 20:12:14,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13" (1/1) ... [2022-11-18 20:12:14,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13" (1/1) ... [2022-11-18 20:12:14,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13" (1/1) ... [2022-11-18 20:12:14,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13" (1/1) ... [2022-11-18 20:12:14,131 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13" (1/1) ... [2022-11-18 20:12:14,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13" (1/1) ... [2022-11-18 20:12:14,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:12:14,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:12:14,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:12:14,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:12:14,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13" (1/1) ... [2022-11-18 20:12:14,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:12:14,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:12:14,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:12:14,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feec85f1-d0c2-4828-adca-347aa3cc5155/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:12:14,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:12:14,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:12:14,241 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-18 20:12:14,242 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-18 20:12:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:12:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:12:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-18 20:12:14,243 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-18 20:12:14,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:12:14,243 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:12:14,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:12:14,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:12:14,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:12:14,244 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-11-18 20:12:14,244 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-11-18 20:12:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:12:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:12:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:12:14,248 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:12:14,524 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:12:14,526 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:12:15,309 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:12:15,331 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:12:15,331 INFO L300 CfgBuilder]: Removed 29 assume(true) statements. [2022-11-18 20:12:15,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:12:15 BoogieIcfgContainer [2022-11-18 20:12:15,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:12:15,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:12:15,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:12:15,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:12:15,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:12:13" (1/3) ... [2022-11-18 20:12:15,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125cbb10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:12:15, skipping insertion in model container [2022-11-18 20:12:15,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:13" (2/3) ... [2022-11-18 20:12:15,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125cbb10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:12:15, skipping insertion in model container [2022-11-18 20:12:15,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:12:15" (3/3) ... [2022-11-18 20:12:15,346 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2022-11-18 20:12:15,394 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:12:15,395 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2022-11-18 20:12:15,395 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:12:15,532 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-11-18 20:12:15,572 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 20:12:15,587 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 440 places, 481 transitions, 1004 flow [2022-11-18 20:12:15,590 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 440 places, 481 transitions, 1004 flow [2022-11-18 20:12:15,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 481 transitions, 1004 flow [2022-11-18 20:12:16,365 INFO L130 PetriNetUnfolder]: 188/1750 cut-off events. [2022-11-18 20:12:16,366 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-18 20:12:16,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1811 conditions, 1750 events. 188/1750 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12584 event pairs, 0 based on Foata normal form. 0/1288 useless extension candidates. Maximal degree in co-relation 897. Up to 16 conditions per place. [2022-11-18 20:12:16,525 INFO L119 LiptonReduction]: Number of co-enabled transitions 105040 [2022-11-18 20:13:33,181 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 251 DAG size of output: 249 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:13:41,178 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 245 DAG size of output: 243 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:13:43,596 INFO L134 LiptonReduction]: Checked pairs total: 255448 [2022-11-18 20:13:43,596 INFO L136 LiptonReduction]: Total number of compositions: 442 [2022-11-18 20:13:43,606 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 163 places, 193 transitions, 428 flow [2022-11-18 20:14:26,963 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1081555 states, 999841 states have (on average 4.8936420890921655) internal successors, (4892864), 1081554 states have internal predecessors, (4892864), 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) [2022-11-18 20:14:26,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:14:27,020 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c194992, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:14:27,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2022-11-18 20:14:34,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 1081555 states, 999841 states have (on average 4.8936420890921655) internal successors, (4892864), 1081554 states have internal predecessors, (4892864), 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) [2022-11-18 20:14:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 20:14:34,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:14:34,829 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 20:14:34,830 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 111 more)] === [2022-11-18 20:14:34,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:34,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1862, now seen corresponding path program 1 times [2022-11-18 20:14:34,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:34,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147743823] [2022-11-18 20:14:34,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:34,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:35,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:35,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:35,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147743823] [2022-11-18 20:14:35,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147743823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:35,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:35,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 20:14:35,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352320009] [2022-11-18 20:14:35,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:35,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:14:35,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:35,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:14:35,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:14:37,219 INFO L87 Difference]: Start difference. First operand has 1081555 states, 999841 states have (on average 4.8936420890921655) internal successors, (4892864), 1081554 states have internal predecessors, (4892864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)