./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/reorder_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/reorder_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ --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 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:51:53,011 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:51:53,127 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:51:53,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:51:53,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:51:53,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:51:53,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:51:53,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:51:53,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:51:53,185 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:51:53,185 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:51:53,186 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:51:53,186 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:51:53,188 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:51:53,188 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:51:53,189 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:51:53,189 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:51:53,189 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:51:53,190 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:51:53,191 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:51:53,191 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:51:53,192 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:51:53,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:51:53,193 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:51:53,194 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:51:53,194 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:51:53,194 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:51:53,195 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:51:53,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:51:53,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:51:53,197 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:51:53,197 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:51:53,198 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:51:53,198 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:51:53,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:51:53,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:51:53,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:51:53,199 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:51:53,199 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:51:53,199 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:51:53,200 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:51:53,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:51:53,200 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:51:53,200 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:51:53,201 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:51:53,201 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_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd [2023-11-19 04:51:53,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:51:53,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:51:53,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:51:53,551 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:51:53,552 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:51:53,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread/reorder_5.i [2023-11-19 04:51:56,741 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:51:57,188 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:51:57,189 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/sv-benchmarks/c/pthread/reorder_5.i [2023-11-19 04:51:57,216 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/data/83a67f3d0/dabb5fbebe784041874619790a6c4204/FLAG2daca15a1 [2023-11-19 04:51:57,233 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/data/83a67f3d0/dabb5fbebe784041874619790a6c4204 [2023-11-19 04:51:57,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:51:57,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:51:57,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:51:57,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:51:57,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:51:57,250 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:51:57" (1/1) ... [2023-11-19 04:51:57,251 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb23f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:57, skipping insertion in model container [2023-11-19 04:51:57,251 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:51:57" (1/1) ... [2023-11-19 04:51:57,348 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:51:58,099 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_b4fb92e8-bade-4f86-ad41-260af5f9f95b/sv-benchmarks/c/pthread/reorder_5.i[59755,59768] [2023-11-19 04:51:58,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:51:58,113 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:51:58,171 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_b4fb92e8-bade-4f86-ad41-260af5f9f95b/sv-benchmarks/c/pthread/reorder_5.i[59755,59768] [2023-11-19 04:51:58,172 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:51:58,275 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:51:58,276 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:51:58,276 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:51:58,284 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:51:58,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:58 WrapperNode [2023-11-19 04:51:58,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:51:58,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:51:58,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:51:58,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:51:58,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:58" (1/1) ... [2023-11-19 04:51:58,319 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:58" (1/1) ... [2023-11-19 04:51:58,350 INFO L138 Inliner]: procedures = 373, calls = 55, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 166 [2023-11-19 04:51:58,350 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:51:58,351 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:51:58,351 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:51:58,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:51:58,360 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:58" (1/1) ... [2023-11-19 04:51:58,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:58" (1/1) ... [2023-11-19 04:51:58,366 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:58" (1/1) ... [2023-11-19 04:51:58,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:58" (1/1) ... [2023-11-19 04:51:58,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:58" (1/1) ... [2023-11-19 04:51:58,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:58" (1/1) ... [2023-11-19 04:51:58,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:58" (1/1) ... [2023-11-19 04:51:58,417 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:58" (1/1) ... [2023-11-19 04:51:58,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:51:58,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:51:58,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:51:58,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:51:58,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:58" (1/1) ... [2023-11-19 04:51:58,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:51:58,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:51:58,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:51:58,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:51:58,499 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-19 04:51:58,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:51:58,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:51:58,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:51:58,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:51:58,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:51:58,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:51:58,500 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-11-19 04:51:58,500 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-11-19 04:51:58,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:51:58,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:51:58,501 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-11-19 04:51:58,501 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-11-19 04:51:58,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:51:58,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:51:58,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:51:58,503 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:51:58,689 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:51:58,692 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:51:59,018 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:51:59,038 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:51:59,044 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 04:51:59,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:59 BoogieIcfgContainer [2023-11-19 04:51:59,053 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:51:59,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:51:59,058 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:51:59,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:51:59,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:51:57" (1/3) ... [2023-11-19 04:51:59,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1443623d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:51:59, skipping insertion in model container [2023-11-19 04:51:59,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:58" (2/3) ... [2023-11-19 04:51:59,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1443623d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:51:59, skipping insertion in model container [2023-11-19 04:51:59,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:59" (3/3) ... [2023-11-19 04:51:59,067 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2023-11-19 04:51:59,076 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 04:51:59,088 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:51:59,088 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:51:59,088 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:51:59,239 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 04:51:59,287 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:51:59,313 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 180 places, 192 transitions, 404 flow [2023-11-19 04:51:59,319 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 180 places, 192 transitions, 404 flow [2023-11-19 04:51:59,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 192 transitions, 404 flow [2023-11-19 04:51:59,544 INFO L124 PetriNetUnfolderBase]: 37/385 cut-off events. [2023-11-19 04:51:59,544 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 04:51:59,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 385 events. 37/385 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1378 event pairs, 0 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 209. Up to 8 conditions per place. [2023-11-19 04:51:59,561 INFO L119 LiptonReduction]: Number of co-enabled transitions 3090 [2023-11-19 04:52:17,815 INFO L134 LiptonReduction]: Checked pairs total: 5929 [2023-11-19 04:52:17,815 INFO L136 LiptonReduction]: Total number of compositions: 212 [2023-11-19 04:52:17,825 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 29 transitions, 78 flow [2023-11-19 04:52:17,854 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 159 states, 150 states have (on average 2.24) internal successors, (336), 158 states have internal predecessors, (336), 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) [2023-11-19 04:52:17,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:52:17,882 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;@408836f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:52:17,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-19 04:52:17,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 150 states have (on average 2.24) internal successors, (336), 158 states have internal predecessors, (336), 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) [2023-11-19 04:52:17,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:52:17,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:17,893 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 04:52:17,893 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-19 04:52:17,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:17,899 INFO L85 PathProgramCache]: Analyzing trace with hash -411337964, now seen corresponding path program 1 times [2023-11-19 04:52:17,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:17,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771530788] [2023-11-19 04:52:17,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:17,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:52:18,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:52:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:52:18,296 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:52:18,298 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:52:18,299 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-11-19 04:52:18,301 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-11-19 04:52:18,301 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-19 04:52:18,302 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-11-19 04:52:18,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:52:18,305 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:52:18,308 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 04:52:18,308 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 04:52:18,338 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-19 04:52:18,343 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:52:18,343 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 216 transitions, 476 flow [2023-11-19 04:52:18,344 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 216 transitions, 476 flow [2023-11-19 04:52:18,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 216 transitions, 476 flow [2023-11-19 04:52:18,520 INFO L124 PetriNetUnfolderBase]: 149/1210 cut-off events. [2023-11-19 04:52:18,521 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-19 04:52:18,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1299 conditions, 1210 events. 149/1210 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6781 event pairs, 2 based on Foata normal form. 0/1068 useless extension candidates. Maximal degree in co-relation 704. Up to 32 conditions per place. [2023-11-19 04:52:18,562 INFO L119 LiptonReduction]: Number of co-enabled transitions 7172 [2023-11-19 04:52:35,517 INFO L134 LiptonReduction]: Checked pairs total: 15298 [2023-11-19 04:52:35,517 INFO L136 LiptonReduction]: Total number of compositions: 220 [2023-11-19 04:52:35,519 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 41 transitions, 126 flow [2023-11-19 04:52:35,789 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3818 states, 3779 states have (on average 3.295051600952633) internal successors, (12452), 3817 states have internal predecessors, (12452), 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) [2023-11-19 04:52:35,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:52:35,799 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;@408836f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:52:35,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-19 04:52:35,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 3818 states, 3779 states have (on average 3.295051600952633) internal successors, (12452), 3817 states have internal predecessors, (12452), 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) [2023-11-19 04:52:35,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:52:35,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:35,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 04:52:35,815 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-19 04:52:35,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:35,817 INFO L85 PathProgramCache]: Analyzing trace with hash 272429610, now seen corresponding path program 1 times [2023-11-19 04:52:35,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:35,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643654135] [2023-11-19 04:52:35,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:35,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:36,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:36,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:36,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643654135] [2023-11-19 04:52:36,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643654135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:36,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:36,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:52:36,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582144479] [2023-11-19 04:52:36,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:36,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:52:36,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:36,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:52:36,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:52:36,223 INFO L87 Difference]: Start difference. First operand has 3818 states, 3779 states have (on average 3.295051600952633) internal successors, (12452), 3817 states have internal predecessors, (12452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-19 04:52:36,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:36,562 INFO L93 Difference]: Finished difference Result 4393 states and 14297 transitions. [2023-11-19 04:52:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:52:36,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2023-11-19 04:52:36,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:36,636 INFO L225 Difference]: With dead ends: 4393 [2023-11-19 04:52:36,636 INFO L226 Difference]: Without dead ends: 4365 [2023-11-19 04:52:36,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:52:36,641 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 80 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:36,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 28 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:52:36,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4365 states. [2023-11-19 04:52:36,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4365 to 4017. [2023-11-19 04:52:36,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4017 states, 3980 states have (on average 3.307788944723618) internal successors, (13165), 4016 states have internal predecessors, (13165), 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) [2023-11-19 04:52:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4017 states to 4017 states and 13165 transitions. [2023-11-19 04:52:37,027 INFO L78 Accepts]: Start accepts. Automaton has 4017 states and 13165 transitions. Word has length 6 [2023-11-19 04:52:37,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:37,028 INFO L495 AbstractCegarLoop]: Abstraction has 4017 states and 13165 transitions. [2023-11-19 04:52:37,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-19 04:52:37,028 INFO L276 IsEmpty]: Start isEmpty. Operand 4017 states and 13165 transitions. [2023-11-19 04:52:37,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:52:37,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:37,030 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:37,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:52:37,030 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-19 04:52:37,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:37,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1640771758, now seen corresponding path program 1 times [2023-11-19 04:52:37,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:37,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846130353] [2023-11-19 04:52:37,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:37,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:37,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:52:37,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:37,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846130353] [2023-11-19 04:52:37,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846130353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:37,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:37,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:52:37,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697448597] [2023-11-19 04:52:37,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:37,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:52:37,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:37,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:52:37,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:52:37,227 INFO L87 Difference]: Start difference. First operand 4017 states and 13165 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-19 04:52:37,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:37,475 INFO L93 Difference]: Finished difference Result 4564 states and 15050 transitions. [2023-11-19 04:52:37,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:52:37,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 10 [2023-11-19 04:52:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:37,523 INFO L225 Difference]: With dead ends: 4564 [2023-11-19 04:52:37,524 INFO L226 Difference]: Without dead ends: 4516 [2023-11-19 04:52:37,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:52:37,525 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 69 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:37,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 30 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:52:37,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4516 states. [2023-11-19 04:52:37,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4516 to 4172. [2023-11-19 04:52:37,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4172 states, 4136 states have (on average 3.341634429400387) internal successors, (13821), 4171 states have internal predecessors, (13821), 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) [2023-11-19 04:52:37,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4172 states to 4172 states and 13821 transitions. [2023-11-19 04:52:37,804 INFO L78 Accepts]: Start accepts. Automaton has 4172 states and 13821 transitions. Word has length 10 [2023-11-19 04:52:37,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:37,804 INFO L495 AbstractCegarLoop]: Abstraction has 4172 states and 13821 transitions. [2023-11-19 04:52:37,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-19 04:52:37,804 INFO L276 IsEmpty]: Start isEmpty. Operand 4172 states and 13821 transitions. [2023-11-19 04:52:37,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:52:37,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:37,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:37,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:52:37,806 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-19 04:52:37,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:37,807 INFO L85 PathProgramCache]: Analyzing trace with hash 30917444, now seen corresponding path program 1 times [2023-11-19 04:52:37,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:37,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100308584] [2023-11-19 04:52:37,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:37,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:52:37,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:52:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:52:37,938 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:52:37,938 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:52:37,939 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-19 04:52:37,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-19 04:52:37,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-19 04:52:37,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-19 04:52:37,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-11-19 04:52:37,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:52:37,945 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 04:52:37,948 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-11-19 04:52:37,949 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:52:37,998 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-19 04:52:38,000 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-19 04:52:38,001 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-19 04:52:38,001 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre48 could not be translated [2023-11-19 04:52:38,001 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-19 04:52:38,002 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet49 could not be translated [2023-11-19 04:52:38,003 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-19 04:52:38,003 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre48 could not be translated [2023-11-19 04:52:38,004 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-19 04:52:38,004 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret50 could not be translated [2023-11-19 04:52:38,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-19 04:52:38,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-19 04:52:38,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-19 04:52:38,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret50 could not be translated [2023-11-19 04:52:38,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-19 04:52:38,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret50 could not be translated [2023-11-19 04:52:38,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-19 04:52:38,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-19 04:52:38,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre53 could not be translated [2023-11-19 04:52:38,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:52:38 BasicIcfg [2023-11-19 04:52:38,018 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:52:38,018 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:52:38,018 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:52:38,019 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:52:38,024 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:59" (3/4) ... [2023-11-19 04:52:38,026 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:52:38,027 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:52:38,028 INFO L158 Benchmark]: Toolchain (without parser) took 40787.30ms. Allocated memory was 134.2MB in the beginning and 239.1MB in the end (delta: 104.9MB). Free memory was 99.3MB in the beginning and 115.7MB in the end (delta: -16.3MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2023-11-19 04:52:38,028 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:52:38,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1041.54ms. Allocated memory is still 134.2MB. Free memory was 99.3MB in the beginning and 59.1MB in the end (delta: 40.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-19 04:52:38,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.73ms. Allocated memory is still 134.2MB. Free memory was 59.1MB in the beginning and 56.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:52:38,029 INFO L158 Benchmark]: Boogie Preprocessor took 70.52ms. Allocated memory is still 134.2MB. Free memory was 56.2MB in the beginning and 54.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:52:38,030 INFO L158 Benchmark]: RCFGBuilder took 630.29ms. Allocated memory was 134.2MB in the beginning and 199.2MB in the end (delta: 65.0MB). Free memory was 54.5MB in the beginning and 157.5MB in the end (delta: -103.0MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2023-11-19 04:52:38,030 INFO L158 Benchmark]: TraceAbstraction took 38961.30ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 157.5MB in the beginning and 116.7MB in the end (delta: 40.8MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. [2023-11-19 04:52:38,030 INFO L158 Benchmark]: Witness Printer took 8.77ms. Allocated memory is still 239.1MB. Free memory was 116.7MB in the beginning and 115.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:52:38,035 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1041.54ms. Allocated memory is still 134.2MB. Free memory was 99.3MB in the beginning and 59.1MB in the end (delta: 40.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.73ms. Allocated memory is still 134.2MB. Free memory was 59.1MB in the beginning and 56.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.52ms. Allocated memory is still 134.2MB. Free memory was 56.2MB in the beginning and 54.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 630.29ms. Allocated memory was 134.2MB in the beginning and 199.2MB in the end (delta: 65.0MB). Free memory was 54.5MB in the beginning and 157.5MB in the end (delta: -103.0MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 38961.30ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 157.5MB in the beginning and 116.7MB in the end (delta: 40.8MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. * Witness Printer took 8.77ms. Allocated memory is still 239.1MB. Free memory was 116.7MB in the beginning and 115.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre53 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.5s, 180 PlacesBefore, 29 PlacesAfterwards, 192 TransitionsBefore, 29 TransitionsAfterwards, 3090 CoEnabledTransitionPairs, 9 FixpointIterations, 75 TrivialSequentialCompositions, 85 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 29 ConcurrentYvCompositions, 12 ChoiceCompositions, 212 TotalNumberOfCompositions, 5929 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4383, independent: 4306, independent conditional: 0, independent unconditional: 4306, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2480, independent: 2466, independent conditional: 0, independent unconditional: 2466, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2480, independent: 2466, independent conditional: 0, independent unconditional: 2466, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4383, independent: 1840, independent conditional: 0, independent unconditional: 1840, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 2480, unknown conditional: 0, unknown unconditional: 2480] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 98, Positive conditional cache size: 0, Positive unconditional cache size: 98, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.2s, 203 PlacesBefore, 42 PlacesAfterwards, 216 TransitionsBefore, 41 TransitionsAfterwards, 7172 CoEnabledTransitionPairs, 8 FixpointIterations, 72 TrivialSequentialCompositions, 91 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 33 ConcurrentYvCompositions, 14 ChoiceCompositions, 220 TotalNumberOfCompositions, 15298 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11264, independent: 11114, independent conditional: 0, independent unconditional: 11114, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5558, independent: 5524, independent conditional: 0, independent unconditional: 5524, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5558, independent: 5521, independent conditional: 0, independent unconditional: 5521, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 37, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11264, independent: 5590, independent conditional: 0, independent unconditional: 5590, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 5558, unknown conditional: 0, unknown unconditional: 5558] , Statistics on independence cache: Total cache size (in pairs): 308, Positive cache size: 295, Positive conditional cache size: 0, Positive unconditional cache size: 295, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1299]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of sscanf at line 1245. Possible FailurePath: [L1229] 0 static int iSet = 4; [L1230] 0 static int iCheck = 1; [L1231] 0 static int a = 0; [L1232] 0 static int b = 0; [L1239] 0 int i, err; [L1240] COND TRUE 0 argc != 1 [L1241] COND FALSE 0 !(argc != 3) [L1245] 0 argv[1] [L1246] 0 argv[2] [L1249] EXPR 0 \read(iSet) [L1249] 0 iSet > 100000 || iCheck > 100000 [L1249] EXPR 0 \read(iCheck) [L1249] 0 iSet > 100000 || iCheck > 100000 [L1249] COND FALSE 0 !(iSet > 100000 || iCheck > 100000) [L1252] EXPR 0 \read(iSet) [L1252] 0 pthread_t setPool[iSet]; [L1253] EXPR 0 \read(iCheck) [L1253] 0 pthread_t checkPool[iCheck]; [L1254] 0 i = 0 VAL [\old(argc)=3, a=0, argc=3, argv={57:56}, argv={57:56}, b=0, checkPool={15:0}, i=0, iCheck={11:0}, iSet={10:0}, setPool={13:0}] [L1254] EXPR 0 \read(iSet) [L1254] COND TRUE 0 i < iSet [L1255] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, a=0, argc=3, argv={57:56}, argv={57:56}, b=0, checkPool={15:0}, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, setPool={13:0}] [L1283] 1 a = 1 VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}] [L1255] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, a=1, argc=3, argv={57:56}, argv={57:56}, b=0, checkPool={15:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={13:0}] [L1255] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) [L1254] 0 i++ VAL [\old(argc)=3, a=1, argc=3, argv={57:56}, argv={57:56}, b=0, checkPool={15:0}, err=0, i=1, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={13:0}] [L1254] EXPR 0 \read(iSet) [L1254] COND FALSE 0 !(i < iSet) [L1260] 0 i = 0 VAL [\old(argc)=3, a=1, argc=3, argv={57:56}, argv={57:56}, b=0, checkPool={15:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={13:0}] [L1260] EXPR 0 \read(iCheck) [L1260] COND TRUE 0 i < iCheck [L1261-L1262] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, a=1, argc=3, argv={57:56}, argv={57:56}, b=0, checkPool={15:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, param={0:0}, setPool={13:0}] [L1292] 2 int la = a; VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, la=1, param={0:0}, param={0:0}, param={0:0}, param={0:0}] [L1295] 2 int lb = b; [L1297] COND TRUE 2 ! ((la == 0 && lb == 0) || (la == 1 && lb == -1)) [L1299] 2 reach_error() VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, la=1, lb=0, param={0:0}, param={0:0}, param={0:0}, param={0:0}] - UnprovableResult [Line: 1255]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1261]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 195 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 19.0s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 18.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 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 7 procedures, 214 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 19.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 17.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 296 IncrementalHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 22 mSDtfsCounter, 296 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4172occurred in iteration=2, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 2 MinimizatonAttempts, 692 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 98 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:52:38,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/reorder_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ --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 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:52:40,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:52:40,738 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:52:40,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:52:40,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:52:40,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:52:40,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:52:40,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:52:40,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:52:40,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:52:40,778 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:52:40,779 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:52:40,780 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:52:40,780 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:52:40,781 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:52:40,782 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:52:40,783 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:52:40,783 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:52:40,784 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:52:40,785 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:52:40,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:52:40,786 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:52:40,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:52:40,787 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:52:40,788 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:52:40,788 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:52:40,789 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:52:40,790 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:52:40,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:52:40,791 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:52:40,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:52:40,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:52:40,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:52:40,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:40,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:52:40,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:52:40,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:52:40,796 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:52:40,796 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:52:40,797 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:52:40,797 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:52:40,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:52:40,799 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd [2023-11-19 04:52:41,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:52:41,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:52:41,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:52:41,210 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:52:41,212 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:52:41,213 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread/reorder_5.i [2023-11-19 04:52:44,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:52:44,745 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:52:44,746 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/sv-benchmarks/c/pthread/reorder_5.i [2023-11-19 04:52:44,777 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/data/229685df5/e593b263f98140c2b16ad1a3f5c45f38/FLAG71fe2040e [2023-11-19 04:52:44,791 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/data/229685df5/e593b263f98140c2b16ad1a3f5c45f38 [2023-11-19 04:52:44,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:52:44,795 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:52:44,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:44,797 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:52:44,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:52:44,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b6f8b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44, skipping insertion in model container [2023-11-19 04:52:44,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,879 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:52:45,737 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_b4fb92e8-bade-4f86-ad41-260af5f9f95b/sv-benchmarks/c/pthread/reorder_5.i[59755,59768] [2023-11-19 04:52:45,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:45,764 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:52:45,870 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_b4fb92e8-bade-4f86-ad41-260af5f9f95b/sv-benchmarks/c/pthread/reorder_5.i[59755,59768] [2023-11-19 04:52:45,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:46,036 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:52:46,036 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:52:46,036 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:52:46,044 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:52:46,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:46 WrapperNode [2023-11-19 04:52:46,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:46,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:46,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:52:46,048 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:52:46,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:46" (1/1) ... [2023-11-19 04:52:46,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:46" (1/1) ... [2023-11-19 04:52:46,149 INFO L138 Inliner]: procedures = 377, calls = 55, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 160 [2023-11-19 04:52:46,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:46,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:52:46,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:52:46,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:52:46,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:46" (1/1) ... [2023-11-19 04:52:46,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:46" (1/1) ... [2023-11-19 04:52:46,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:46" (1/1) ... [2023-11-19 04:52:46,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:46" (1/1) ... [2023-11-19 04:52:46,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:46" (1/1) ... [2023-11-19 04:52:46,211 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:46" (1/1) ... [2023-11-19 04:52:46,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:46" (1/1) ... [2023-11-19 04:52:46,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:46" (1/1) ... [2023-11-19 04:52:46,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:52:46,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:52:46,232 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:52:46,232 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:52:46,233 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:46" (1/1) ... [2023-11-19 04:52:46,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:46,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:46,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:52:46,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fb92e8-bade-4f86-ad41-260af5f9f95b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:52:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:52:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-19 04:52:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:52:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:52:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:52:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:52:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:52:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:52:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 04:52:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:52:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-11-19 04:52:46,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-11-19 04:52:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:52:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-11-19 04:52:46,302 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-11-19 04:52:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:52:46,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:52:46,304 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:52:46,474 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:52:46,477 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:52:46,827 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:52:46,838 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:52:46,838 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 04:52:46,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:46 BoogieIcfgContainer [2023-11-19 04:52:46,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:52:46,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:52:46,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:52:46,848 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:52:46,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:52:44" (1/3) ... [2023-11-19 04:52:46,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250685c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:46, skipping insertion in model container [2023-11-19 04:52:46,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:46" (2/3) ... [2023-11-19 04:52:46,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250685c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:46, skipping insertion in model container [2023-11-19 04:52:46,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:46" (3/3) ... [2023-11-19 04:52:46,852 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2023-11-19 04:52:46,861 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 04:52:46,872 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:52:46,872 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:52:46,872 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:52:46,982 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 04:52:47,019 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:52:47,034 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 185 transitions, 390 flow [2023-11-19 04:52:47,037 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 185 transitions, 390 flow [2023-11-19 04:52:47,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 185 transitions, 390 flow [2023-11-19 04:52:47,171 INFO L124 PetriNetUnfolderBase]: 37/372 cut-off events. [2023-11-19 04:52:47,171 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 04:52:47,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 372 events. 37/372 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1305 event pairs, 0 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2023-11-19 04:52:47,183 INFO L119 LiptonReduction]: Number of co-enabled transitions 2818