./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 0e0057cc 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_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.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_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:58:05,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:58:05,326 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 14:58:05,332 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:58:05,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:58:05,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:58:05,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:58:05,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:58:05,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:58:05,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:58:05,361 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:58:05,362 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:58:05,362 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:58:05,363 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:58:05,363 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:58:05,364 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:58:05,364 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:58:05,365 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:58:05,365 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:58:05,366 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:58:05,366 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:58:05,367 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:58:05,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:58:05,368 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:58:05,368 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:58:05,369 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:58:05,369 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:58:05,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:58:05,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:58:05,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:58:05,371 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:58:05,371 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:58:05,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:58:05,372 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:58:05,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:58:05,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:58:05,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:58:05,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:58:05,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:58:05,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:58:05,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:58:05,374 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:58:05,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:58:05,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:58:05,375 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:58:05,375 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:58:05,375 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:58:05,375 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2023-12-02 14:58:05,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:58:05,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:58:05,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:58:05,636 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:58:05,636 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:58:05,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-12-02 14:58:08,420 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:58:08,673 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:58:08,673 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed5516d-1a41-4e25-b942-319e84e06bb0/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-12-02 14:58:08,694 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh/data/009bc9d42/cdb480d89a1b44119d08d8c31a3dbb88/FLAGbda95c6c1 [2023-12-02 14:58:08,708 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh/data/009bc9d42/cdb480d89a1b44119d08d8c31a3dbb88 [2023-12-02 14:58:08,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:58:08,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:58:08,714 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:58:08,714 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:58:08,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:58:08,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:58:08" (1/1) ... [2023-12-02 14:58:08,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba3ac6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:08, skipping insertion in model container [2023-12-02 14:58:08,721 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:58:08" (1/1) ... [2023-12-02 14:58:08,780 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:58:09,276 WARN L240 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_3ed5516d-1a41-4e25-b942-319e84e06bb0/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2023-12-02 14:58:09,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:58:09,327 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:58:09,377 WARN L240 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_3ed5516d-1a41-4e25-b942-319e84e06bb0/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2023-12-02 14:58:09,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:58:09,538 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:58:09,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:09 WrapperNode [2023-12-02 14:58:09,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:58:09,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:58:09,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:58:09,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:58:09,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:09" (1/1) ... [2023-12-02 14:58:09,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:09" (1/1) ... [2023-12-02 14:58:09,601 INFO L138 Inliner]: procedures = 378, calls = 82, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 269 [2023-12-02 14:58:09,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:58:09,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:58:09,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:58:09,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:58:09,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:09" (1/1) ... [2023-12-02 14:58:09,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:09" (1/1) ... [2023-12-02 14:58:09,618 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:09" (1/1) ... [2023-12-02 14:58:09,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:09" (1/1) ... [2023-12-02 14:58:09,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:09" (1/1) ... [2023-12-02 14:58:09,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:09" (1/1) ... [2023-12-02 14:58:09,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:09" (1/1) ... [2023-12-02 14:58:09,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:09" (1/1) ... [2023-12-02 14:58:09,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:58:09,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:58:09,645 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:58:09,645 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:58:09,645 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:09" (1/1) ... [2023-12-02 14:58:09,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:58:09,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:58:09,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:58:09,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed5516d-1a41-4e25-b942-319e84e06bb0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:58:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 14:58:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 14:58:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 14:58:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 14:58:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 14:58:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 14:58:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 14:58:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 14:58:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 14:58:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:58:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 14:58:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-12-02 14:58:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-12-02 14:58:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:58:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:58:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:58:09,729 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 14:58:09,919 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:58:09,921 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:58:10,324 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:58:10,597 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:58:10,598 INFO L309 CfgBuilder]: Removed 23 assume(true) statements. [2023-12-02 14:58:10,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:58:10 BoogieIcfgContainer [2023-12-02 14:58:10,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:58:10,602 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:58:10,602 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:58:10,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:58:10,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:58:08" (1/3) ... [2023-12-02 14:58:10,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393c059d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:58:10, skipping insertion in model container [2023-12-02 14:58:10,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:09" (2/3) ... [2023-12-02 14:58:10,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393c059d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:58:10, skipping insertion in model container [2023-12-02 14:58:10,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:58:10" (3/3) ... [2023-12-02 14:58:10,610 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2023-12-02 14:58:10,621 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 14:58:10,633 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:58:10,634 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 14:58:10,634 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 14:58:10,696 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-02 14:58:10,732 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 80 places, 104 transitions, 215 flow [2023-12-02 14:58:10,829 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1449 states, 1442 states have (on average 2.615117891816921) internal successors, (3771), 1448 states have internal predecessors, (3771), 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) [2023-12-02 14:58:10,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:58:10,856 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@56b3fa7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:58:10,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 14:58:10,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 1449 states, 1442 states have (on average 2.615117891816921) internal successors, (3771), 1448 states have internal predecessors, (3771), 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) [2023-12-02 14:58:10,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 14:58:10,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:10,870 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-12-02 14:58:10,871 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)] === [2023-12-02 14:58:10,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:10,877 INFO L85 PathProgramCache]: Analyzing trace with hash -916600675, now seen corresponding path program 1 times [2023-12-02 14:58:10,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:10,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309950580] [2023-12-02 14:58:10,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:10,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:58:11,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 14:58:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:58:11,151 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 14:58:11,152 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 14:58:11,153 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-12-02 14:58:11,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-12-02 14:58:11,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2023-12-02 14:58:11,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-12-02 14:58:11,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:58:11,160 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 14:58:11,162 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-02 14:58:11,162 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-12-02 14:58:11,218 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-02 14:58:11,224 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 116 places, 151 transitions, 318 flow [2023-12-02 14:58:12,448 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 50077 states, 50058 states have (on average 3.9163170721962524) internal successors, (196043), 50076 states have internal predecessors, (196043), 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) [2023-12-02 14:58:12,450 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:58:12,451 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@56b3fa7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:58:12,452 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-02 14:58:12,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 50077 states, 50058 states have (on average 3.9163170721962524) internal successors, (196043), 50076 states have internal predecessors, (196043), 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) [2023-12-02 14:58:12,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 14:58:12,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:12,551 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2023-12-02 14:58:12,552 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)] === [2023-12-02 14:58:12,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:12,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2106282861, now seen corresponding path program 1 times [2023-12-02 14:58:12,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:12,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880986988] [2023-12-02 14:58:12,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:12,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:58:12,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 14:58:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:58:12,723 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 14:58:12,724 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 14:58:12,724 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2023-12-02 14:58:12,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-12-02 14:58:12,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-12-02 14:58:12,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-12-02 14:58:12,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-12-02 14:58:12,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:58:12,726 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 14:58:12,726 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-02 14:58:12,727 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-12-02 14:58:12,786 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-02 14:58:12,790 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 152 places, 198 transitions, 423 flow [2023-12-02 14:59:16,664 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1710001 states, 1709952 states have (on average 5.232717643536192) internal successors, (8947696), 1710000 states have internal predecessors, (8947696), 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) [2023-12-02 14:59:16,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:59:16,668 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@56b3fa7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:59:16,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-12-02 14:59:19,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 1710001 states, 1709952 states have (on average 5.232717643536192) internal successors, (8947696), 1710000 states have internal predecessors, (8947696), 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) [2023-12-02 14:59:19,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 14:59:19,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:19,612 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2023-12-02 14:59:19,612 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)] === [2023-12-02 14:59:19,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:19,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1332086460, now seen corresponding path program 1 times [2023-12-02 14:59:19,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:19,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761862827] [2023-12-02 14:59:19,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:19,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:59:19,670 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 14:59:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:59:19,706 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 14:59:19,706 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 14:59:19,706 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-12-02 14:59:19,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-12-02 14:59:19,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2023-12-02 14:59:19,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2023-12-02 14:59:19,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-12-02 14:59:19,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-12-02 14:59:19,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 14:59:19,709 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 14:59:19,709 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-02 14:59:19,709 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-12-02 14:59:19,778 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-12-02 14:59:19,781 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 188 places, 245 transitions, 530 flow