./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 --- 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-4e7fbc6 [2022-11-23 03:43:05,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:43:05,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:43:05,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:43:05,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:43:05,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:43:05,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:43:05,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:43:05,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:43:05,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:43:05,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:43:05,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:43:05,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:43:05,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:43:05,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:43:05,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:43:05,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:43:05,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:43:05,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:43:05,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:43:05,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:43:05,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:43:05,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:43:05,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:43:05,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:43:05,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:43:05,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:43:05,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:43:05,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:43:05,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:43:05,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:43:05,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:43:05,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:43:05,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:43:05,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:43:05,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:43:05,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:43:05,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:43:05,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:43:05,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:43:05,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:43:05,419 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 03:43:05,456 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:43:05,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:43:05,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:43:05,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:43:05,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:43:05,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:43:05,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:43:05,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:43:05,459 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:43:05,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:43:05,461 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:43:05,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:43:05,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:43:05,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:43:05,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:43:05,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:43:05,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:43:05,462 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:43:05,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:43:05,462 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:43:05,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:43:05,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:43:05,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:43:05,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:43:05,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:43:05,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:43:05,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:43:05,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:43:05,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:43:05,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:43:05,465 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:43:05,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:43:05,465 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:43:05,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:43:05,465 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_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 [2022-11-23 03:43:05,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:43:05,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:43:05,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:43:05,741 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:43:05,741 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:43:05,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2022-11-23 03:43:08,816 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:43:09,081 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:43:09,082 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2022-11-23 03:43:09,094 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS/data/3c0657708/da80c2a1351e436bbc1e45bd2985c315/FLAG43e567469 [2022-11-23 03:43:09,109 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS/data/3c0657708/da80c2a1351e436bbc1e45bd2985c315 [2022-11-23 03:43:09,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:43:09,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:43:09,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:43:09,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:43:09,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:43:09,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:09" (1/1) ... [2022-11-23 03:43:09,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@512881cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09, skipping insertion in model container [2022-11-23 03:43:09,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:09" (1/1) ... [2022-11-23 03:43:09,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:43:09,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:43:09,527 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_f6de195d-f372-446f-b0de-247c1a721c4b/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i[30176,30189] [2022-11-23 03:43:09,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:43:09,597 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:43:09,653 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_f6de195d-f372-446f-b0de-247c1a721c4b/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i[30176,30189] [2022-11-23 03:43:09,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:43:09,721 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:43:09,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09 WrapperNode [2022-11-23 03:43:09,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:43:09,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:43:09,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:43:09,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:43:09,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09" (1/1) ... [2022-11-23 03:43:09,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09" (1/1) ... [2022-11-23 03:43:09,808 INFO L138 Inliner]: procedures = 172, calls = 52, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 218 [2022-11-23 03:43:09,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:43:09,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:43:09,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:43:09,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:43:09,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09" (1/1) ... [2022-11-23 03:43:09,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09" (1/1) ... [2022-11-23 03:43:09,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09" (1/1) ... [2022-11-23 03:43:09,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09" (1/1) ... [2022-11-23 03:43:09,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09" (1/1) ... [2022-11-23 03:43:09,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09" (1/1) ... [2022-11-23 03:43:09,874 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09" (1/1) ... [2022-11-23 03:43:09,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09" (1/1) ... [2022-11-23 03:43:09,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:43:09,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:43:09,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:43:09,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:43:09,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09" (1/1) ... [2022-11-23 03:43:09,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:43:09,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:43:09,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:43:09,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de195d-f372-446f-b0de-247c1a721c4b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:43:09,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:43:09,972 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-23 03:43:09,972 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-23 03:43:09,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:43:09,973 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 03:43:09,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:43:09,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:43:09,978 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-23 03:43:09,978 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-23 03:43:09,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:43:09,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:43:09,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:43:09,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:43:09,981 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:43:10,251 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:43:10,253 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:43:10,645 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:43:10,662 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:43:10,662 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-11-23 03:43:10,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:10 BoogieIcfgContainer [2022-11-23 03:43:10,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:43:10,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:43:10,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:43:10,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:43:10,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:43:09" (1/3) ... [2022-11-23 03:43:10,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7fed75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:10, skipping insertion in model container [2022-11-23 03:43:10,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:09" (2/3) ... [2022-11-23 03:43:10,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7fed75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:10, skipping insertion in model container [2022-11-23 03:43:10,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:10" (3/3) ... [2022-11-23 03:43:10,686 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2022-11-23 03:43:10,696 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:43:10,706 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:43:10,706 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 03:43:10,706 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:43:10,795 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-23 03:43:10,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 227 transitions, 476 flow [2022-11-23 03:43:10,978 INFO L130 PetriNetUnfolder]: 58/398 cut-off events. [2022-11-23 03:43:10,978 INFO L131 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-11-23 03:43:10,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 398 events. 58/398 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1708 event pairs, 0 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 211. Up to 8 conditions per place. [2022-11-23 03:43:10,994 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 227 transitions, 476 flow [2022-11-23 03:43:11,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 227 transitions, 476 flow [2022-11-23 03:43:11,006 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:43:11,038 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 200 places, 227 transitions, 476 flow [2022-11-23 03:43:11,047 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 200 places, 227 transitions, 476 flow [2022-11-23 03:43:11,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 227 transitions, 476 flow [2022-11-23 03:43:11,133 INFO L130 PetriNetUnfolder]: 58/398 cut-off events. [2022-11-23 03:43:11,134 INFO L131 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-11-23 03:43:11,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 398 events. 58/398 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1708 event pairs, 0 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 211. Up to 8 conditions per place. [2022-11-23 03:43:11,154 INFO L119 LiptonReduction]: Number of co-enabled transitions 20352 [2022-11-23 03:43:17,712 INFO L134 LiptonReduction]: Checked pairs total: 31717 [2022-11-23 03:43:17,712 INFO L136 LiptonReduction]: Total number of compositions: 194 [2022-11-23 03:43:17,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:43:17,737 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5f5bade7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:43:17,737 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-23 03:43:17,744 INFO L130 PetriNetUnfolder]: 2/22 cut-off events. [2022-11-23 03:43:17,744 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:43:17,745 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:17,745 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-11-23 03:43:17,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-23 03:43:17,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:17,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1765522381, now seen corresponding path program 1 times [2022-11-23 03:43:17,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:17,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110261545] [2022-11-23 03:43:17,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:17,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:43:17,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:43:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:43:18,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:43:18,060 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:43:18,061 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2022-11-23 03:43:18,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-11-23 03:43:18,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-11-23 03:43:18,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-11-23 03:43:18,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-11-23 03:43:18,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-11-23 03:43:18,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:43:18,066 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 03:43:18,076 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 03:43:18,076 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 03:43:18,173 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-23 03:43:18,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 310 places, 361 transitions, 770 flow [2022-11-23 03:43:18,474 INFO L130 PetriNetUnfolder]: 197/1148 cut-off events. [2022-11-23 03:43:18,475 INFO L131 PetriNetUnfolder]: For 72/86 co-relation queries the response was YES. [2022-11-23 03:43:18,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 1148 events. 197/1148 cut-off events. For 72/86 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7027 event pairs, 1 based on Foata normal form. 0/956 useless extension candidates. Maximal degree in co-relation 711. Up to 32 conditions per place. [2022-11-23 03:43:18,502 INFO L82 GeneralOperation]: Start removeDead. Operand has 310 places, 361 transitions, 770 flow [2022-11-23 03:43:18,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 310 places, 361 transitions, 770 flow [2022-11-23 03:43:18,521 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:43:18,521 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 310 places, 361 transitions, 770 flow [2022-11-23 03:43:18,522 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 310 places, 361 transitions, 770 flow [2022-11-23 03:43:18,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 310 places, 361 transitions, 770 flow [2022-11-23 03:43:18,844 INFO L130 PetriNetUnfolder]: 197/1148 cut-off events. [2022-11-23 03:43:18,845 INFO L131 PetriNetUnfolder]: For 72/86 co-relation queries the response was YES. [2022-11-23 03:43:18,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 1148 events. 197/1148 cut-off events. For 72/86 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7027 event pairs, 1 based on Foata normal form. 0/956 useless extension candidates. Maximal degree in co-relation 711. Up to 32 conditions per place. [2022-11-23 03:43:18,947 INFO L119 LiptonReduction]: Number of co-enabled transitions 76032 [2022-11-23 03:43:27,599 INFO L134 LiptonReduction]: Checked pairs total: 150520 [2022-11-23 03:43:27,599 INFO L136 LiptonReduction]: Total number of compositions: 306 [2022-11-23 03:43:27,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:43:27,603 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5f5bade7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:43:27,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 03:43:27,612 INFO L130 PetriNetUnfolder]: 8/41 cut-off events. [2022-11-23 03:43:27,612 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 03:43:27,613 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:27,613 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:43:27,614 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-11-23 03:43:27,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:27,615 INFO L85 PathProgramCache]: Analyzing trace with hash 738041918, now seen corresponding path program 1 times [2022-11-23 03:43:27,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:27,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676330763] [2022-11-23 03:43:27,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:27,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:28,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:28,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:28,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676330763] [2022-11-23 03:43:28,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676330763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:28,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:28,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:43:28,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733549282] [2022-11-23 03:43:28,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:28,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:43:28,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:28,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:43:28,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:43:28,325 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 667 [2022-11-23 03:43:28,330 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 146 transitions, 340 flow. Second operand has 5 states, 5 states have (on average 281.4) internal successors, (1407), 5 states have internal predecessors, (1407), 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) [2022-11-23 03:43:28,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:28,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 667 [2022-11-23 03:43:28,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand