./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/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_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro --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 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- 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 20:48:59,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:48:59,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:48:59,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:48:59,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:48:59,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:48:59,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:48:59,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:48:59,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:48:59,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:48:59,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:48:59,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:48:59,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:48:59,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:48:59,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:48:59,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:48:59,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:48:59,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:48:59,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:48:59,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:48:59,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:48:59,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:48:59,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:48:59,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:49:00,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:49:00,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:49:00,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:49:00,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:49:00,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:49:00,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:49:00,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:49:00,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:49:00,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:49:00,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:49:00,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:49:00,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:49:00,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:49:00,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:49:00,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:49:00,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:49:00,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:49:00,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:49:00,055 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:49:00,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:49:00,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:49:00,057 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:49:00,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:49:00,058 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:49:00,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:49:00,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:49:00,059 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:49:00,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:49:00,060 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:49:00,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:49:00,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:49:00,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:49:00,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:49:00,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:49:00,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:49:00,062 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:49:00,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:49:00,062 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:49:00,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:49:00,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:49:00,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:49:00,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:49:00,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:49:00,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:49:00,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:49:00,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:49:00,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:49:00,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:49:00,066 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:49:00,066 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:49:00,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:49:00,067 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_edc9cc73-15a9-47e9-b130-e319da7029ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2022-11-18 20:49:00,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:49:00,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:49:00,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:49:00,382 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:49:00,383 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:49:00,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-11-18 20:49:00,469 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/data/5256a8a26/6f0b482b2c684adbb6689180134ff517/FLAG6554cba1f [2022-11-18 20:49:01,125 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:49:01,125 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-11-18 20:49:01,146 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/data/5256a8a26/6f0b482b2c684adbb6689180134ff517/FLAG6554cba1f [2022-11-18 20:49:01,356 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/data/5256a8a26/6f0b482b2c684adbb6689180134ff517 [2022-11-18 20:49:01,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:49:01,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:49:01,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:49:01,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:49:01,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:49:01,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:49:01" (1/1) ... [2022-11-18 20:49:01,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cab23c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01, skipping insertion in model container [2022-11-18 20:49:01,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:49:01" (1/1) ... [2022-11-18 20:49:01,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:49:01,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:49:02,046 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_edc9cc73-15a9-47e9-b130-e319da7029ca/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-11-18 20:49:02,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:49:02,109 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:49:02,162 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_edc9cc73-15a9-47e9-b130-e319da7029ca/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-11-18 20:49:02,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:49:02,256 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:49:02,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:02 WrapperNode [2022-11-18 20:49:02,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:49:02,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:49:02,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:49:02,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:49:02,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:02" (1/1) ... [2022-11-18 20:49:02,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:02" (1/1) ... [2022-11-18 20:49:02,358 INFO L138 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 236 [2022-11-18 20:49:02,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:49:02,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:49:02,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:49:02,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:49:02,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:02" (1/1) ... [2022-11-18 20:49:02,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:02" (1/1) ... [2022-11-18 20:49:02,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:02" (1/1) ... [2022-11-18 20:49:02,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:02" (1/1) ... [2022-11-18 20:49:02,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:02" (1/1) ... [2022-11-18 20:49:02,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:02" (1/1) ... [2022-11-18 20:49:02,410 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:02" (1/1) ... [2022-11-18 20:49:02,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:02" (1/1) ... [2022-11-18 20:49:02,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:49:02,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:49:02,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:49:02,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:49:02,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:02" (1/1) ... [2022-11-18 20:49:02,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:49:02,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:49:02,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:49:02,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:49:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:49:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:49:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:49:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:49:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:49:02,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:49:02,529 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:49:02,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:49:02,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:49:02,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:49:02,531 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:49:02,531 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:49:02,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:49:02,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:49:02,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:49:02,533 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 20:49:02,785 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:49:02,787 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:49:03,303 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:49:03,312 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:49:03,312 INFO L300 CfgBuilder]: Removed 23 assume(true) statements. [2022-11-18 20:49:03,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:49:03 BoogieIcfgContainer [2022-11-18 20:49:03,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:49:03,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:49:03,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:49:03,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:49:03,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:49:01" (1/3) ... [2022-11-18 20:49:03,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4bcd03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:49:03, skipping insertion in model container [2022-11-18 20:49:03,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:02" (2/3) ... [2022-11-18 20:49:03,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4bcd03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:49:03, skipping insertion in model container [2022-11-18 20:49:03,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:49:03" (3/3) ... [2022-11-18 20:49:03,325 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2022-11-18 20:49:03,333 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:49:03,344 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:49:03,345 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:49:03,345 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:49:03,418 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:49:03,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 254 transitions, 516 flow [2022-11-18 20:49:03,657 INFO L130 PetriNetUnfolder]: 45/362 cut-off events. [2022-11-18 20:49:03,658 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:49:03,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 362 events. 45/362 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1080 event pairs, 0 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 195. Up to 8 conditions per place. [2022-11-18 20:49:03,668 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 254 transitions, 516 flow [2022-11-18 20:49:03,682 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 249 transitions, 503 flow [2022-11-18 20:49:03,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:49:03,739 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;@32a5a834, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:49:03,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 20:49:03,757 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2022-11-18 20:49:03,757 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:49:03,758 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:49:03,761 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:03,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 20:49:03,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:03,769 INFO L85 PathProgramCache]: Analyzing trace with hash 810021703, now seen corresponding path program 1 times [2022-11-18 20:49:03,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:03,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64801622] [2022-11-18 20:49:03,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:03,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:49:04,017 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:49:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:49:04,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:49:04,132 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:49:04,134 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-11-18 20:49:04,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-11-18 20:49:04,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-11-18 20:49:04,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-11-18 20:49:04,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:49:04,137 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-18 20:49:04,141 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:49:04,141 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 20:49:04,191 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:49:04,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 301 places, 338 transitions, 694 flow [2022-11-18 20:49:04,355 INFO L130 PetriNetUnfolder]: 76/579 cut-off events. [2022-11-18 20:49:04,355 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:49:04,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 579 events. 76/579 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2300 event pairs, 0 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 364. Up to 12 conditions per place. [2022-11-18 20:49:04,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 301 places, 338 transitions, 694 flow [2022-11-18 20:49:04,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 301 places, 338 transitions, 694 flow [2022-11-18 20:49:04,378 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:49:04,383 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;@32a5a834, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:49:04,383 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-18 20:49:04,410 INFO L130 PetriNetUnfolder]: 3/153 cut-off events. [2022-11-18 20:49:04,411 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:49:04,411 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:49:04,412 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:04,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-18 20:49:04,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:04,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1236407387, now seen corresponding path program 1 times [2022-11-18 20:49:04,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:04,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258000914] [2022-11-18 20:49:04,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:04,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:49:04,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:49:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:49:04,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:49:04,598 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:49:04,598 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2022-11-18 20:49:04,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-11-18 20:49:04,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-11-18 20:49:04,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-11-18 20:49:04,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-11-18 20:49:04,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:49:04,600 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-18 20:49:04,600 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:49:04,600 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 20:49:04,665 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:49:04,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 422 transitions, 874 flow [2022-11-18 20:49:04,928 INFO L130 PetriNetUnfolder]: 112/829 cut-off events. [2022-11-18 20:49:04,928 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-18 20:49:04,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 829 events. 112/829 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3798 event pairs, 1 based on Foata normal form. 0/706 useless extension candidates. Maximal degree in co-relation 587. Up to 16 conditions per place. [2022-11-18 20:49:04,946 INFO L82 GeneralOperation]: Start removeDead. Operand has 374 places, 422 transitions, 874 flow [2022-11-18 20:49:04,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 422 transitions, 874 flow [2022-11-18 20:49:04,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:49:04,964 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;@32a5a834, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:49:04,965 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-18 20:49:05,002 INFO L130 PetriNetUnfolder]: 7/247 cut-off events. [2022-11-18 20:49:05,005 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 20:49:05,005 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:49:05,006 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:05,007 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-18 20:49:05,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:05,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1944236860, now seen corresponding path program 1 times [2022-11-18 20:49:05,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:05,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611258097] [2022-11-18 20:49:05,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:05,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:49:05,090 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:49:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:49:05,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:49:05,158 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:49:05,158 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2022-11-18 20:49:05,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-11-18 20:49:05,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-11-18 20:49:05,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-11-18 20:49:05,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-11-18 20:49:05,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-11-18 20:49:05,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:49:05,160 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-18 20:49:05,160 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:49:05,160 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-18 20:49:05,238 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 20:49:05,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 447 places, 506 transitions, 1056 flow [2022-11-18 20:49:05,680 INFO L130 PetriNetUnfolder]: 160/1147 cut-off events. [2022-11-18 20:49:05,680 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-11-18 20:49:05,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 1147 events. 160/1147 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5748 event pairs, 6 based on Foata normal form. 0/978 useless extension candidates. Maximal degree in co-relation 849. Up to 32 conditions per place. [2022-11-18 20:49:05,710 INFO L82 GeneralOperation]: Start removeDead. Operand has 447 places, 506 transitions, 1056 flow [2022-11-18 20:49:05,730 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 447 places, 506 transitions, 1056 flow [2022-11-18 20:49:05,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:49:05,738 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;@32a5a834, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:49:05,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 20:49:05,807 INFO L130 PetriNetUnfolder]: 22/396 cut-off events. [2022-11-18 20:49:05,808 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-18 20:49:05,808 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:49:05,808 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:05,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-18 20:49:05,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:05,809 INFO L85 PathProgramCache]: Analyzing trace with hash -973067709, now seen corresponding path program 1 times [2022-11-18 20:49:05,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:05,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259145737] [2022-11-18 20:49:05,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:05,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:49:05,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:49:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:49:06,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:49:06,010 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:49:06,010 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-11-18 20:49:06,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-11-18 20:49:06,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-18 20:49:06,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-11-18 20:49:06,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-11-18 20:49:06,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-11-18 20:49:06,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-11-18 20:49:06,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:49:06,037 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-18 20:49:06,041 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2022-11-18 20:49:06,042 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:49:06,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:49:06 BasicIcfg [2022-11-18 20:49:06,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:49:06,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:49:06,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:49:06,267 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:49:06,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:49:03" (3/4) ... [2022-11-18 20:49:06,278 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 20:49:06,424 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:49:06,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:49:06,425 INFO L158 Benchmark]: Toolchain (without parser) took 5064.49ms. Allocated memory was 115.3MB in the beginning and 213.9MB in the end (delta: 98.6MB). Free memory was 73.5MB in the beginning and 88.0MB in the end (delta: -14.5MB). Peak memory consumption was 117.0MB. Max. memory is 16.1GB. [2022-11-18 20:49:06,425 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:49:06,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 894.12ms. Allocated memory is still 115.3MB. Free memory was 73.3MB in the beginning and 60.1MB in the end (delta: 13.2MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-11-18 20:49:06,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.46ms. Allocated memory is still 115.3MB. Free memory was 60.1MB in the beginning and 57.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:49:06,427 INFO L158 Benchmark]: Boogie Preprocessor took 72.41ms. Allocated memory is still 115.3MB. Free memory was 57.0MB in the beginning and 54.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:49:06,427 INFO L158 Benchmark]: RCFGBuilder took 883.45ms. Allocated memory was 115.3MB in the beginning and 157.3MB in the end (delta: 41.9MB). Free memory was 54.4MB in the beginning and 110.9MB in the end (delta: -56.4MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-11-18 20:49:06,427 INFO L158 Benchmark]: TraceAbstraction took 2948.78ms. Allocated memory was 157.3MB in the beginning and 213.9MB in the end (delta: 56.6MB). Free memory was 110.2MB in the beginning and 71.2MB in the end (delta: 39.0MB). Peak memory consumption was 107.0MB. Max. memory is 16.1GB. [2022-11-18 20:49:06,428 INFO L158 Benchmark]: Witness Printer took 157.33ms. Allocated memory is still 213.9MB. Free memory was 71.2MB in the beginning and 88.0MB in the end (delta: -16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 20:49:06,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 894.12ms. Allocated memory is still 115.3MB. Free memory was 73.3MB in the beginning and 60.1MB in the end (delta: 13.2MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.46ms. Allocated memory is still 115.3MB. Free memory was 60.1MB in the beginning and 57.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 72.41ms. Allocated memory is still 115.3MB. Free memory was 57.0MB in the beginning and 54.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 883.45ms. Allocated memory was 115.3MB in the beginning and 157.3MB in the end (delta: 41.9MB). Free memory was 54.4MB in the beginning and 110.9MB in the end (delta: -56.4MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2948.78ms. Allocated memory was 157.3MB in the beginning and 213.9MB in the end (delta: 56.6MB). Free memory was 110.2MB in the beginning and 71.2MB in the end (delta: 39.0MB). Peak memory consumption was 107.0MB. Max. memory is 16.1GB. * Witness Printer took 157.33ms. Allocated memory is still 213.9MB. Free memory was 71.2MB in the beginning and 88.0MB in the end (delta: -16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1235]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1241-L1244] 0 struct s { int datum; struct s *next; } *A; VAL [A={3:0}] [L1240] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={4:0}, A={3:0}] [L1253] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}] [L1254] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}] [L1267] 0 struct s *p; VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}] [L1268] 0 A = malloc(sizeof(struct s)) VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, malloc(sizeof(struct s))={9:0}] [L1269] EXPR 0 \read(*A) VAL [\read(*A)={9:0}, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}] [L1269] CALL 0 init(A,3) [L1246] 0 p -> datum = x VAL [\old(x)=3, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={9:0}, x=3] [L1247] 0 p -> next = ((void *)0) VAL [\old(x)=3, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={9:0}, x=3] [L1269] RET 0 init(A,3) [L1270] 0 pthread_t t_ids[10000]; VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, t_ids={15:0}] [L1270] 0 int i=0; VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, t_ids={15:0}] [L1270] COND TRUE 0 i<10000 VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, t_ids={15:0}] [L1270] FCALL, FORK 0 pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0)) VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0))=-1, t_ids={15:0}] [L1256] 1 struct s *p = malloc(sizeof(struct s)); VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, malloc(sizeof(struct s))={-2:0}, p={-2:0}] [L1257] CALL 1 init(p,7) [L1246] 1 p -> datum = x VAL [\old(x)=7, \old(x)=3, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={9:0}, p={-2:0}, p={-2:0}, x=7, x=3] [L1247] 1 p -> next = ((void *)0) VAL [\old(x)=3, \old(x)=7, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={9:0}, p={-2:0}, p={-2:0}, x=7, x=3] [L1257] RET 1 init(p,7) [L1259] CALL 1 insert(p, &A) [L1250] EXPR 1 \read(**list) VAL [\read(**list)={9:0}, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, list={3:0}, list={3:0}, p={-2:0}, p={-2:0}] [L1250] 1 p->next = *list VAL [\read(**list)={9:0}, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, list={3:0}, list={3:0}, p={-2:0}, p={-2:0}] [L1251] 1 *list = p VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, list={3:0}, list={3:0}, p={-2:0}, p={-2:0}] [L1259] RET 1 insert(p, &A) [L1262] COND FALSE 1 !(__VERIFIER_nondet_int()) VAL [__global_lock={4:0}, __VERIFIER_nondet_int()=0, A={3:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, p={-2:0}] [L1262] EXPR 1 p->datum VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, p={-2:0}, p->datum=7] [L1262] CALL 1 __VERIFIER_assert((p->datum) == 0) [L1235] COND TRUE 1 !(cond) VAL [\old(cond)=0, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, cond=0] [L1235] 1 reach_error() VAL [\old(cond)=0, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, cond=0] - UnprovableResult [Line: 1235]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1270]: 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, 297 locations, 4 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: 0.7s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=503occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 368 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=694occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 439 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=874occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 510 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1056occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 proved your program to be incorrect! [2022-11-18 20:49:06,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edc9cc73-15a9-47e9-b130-e319da7029ca/bin/uautomizer-TMbwUNV5ro/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE