./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:01,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:01,203 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:04:01,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:01,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:01,242 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:01,243 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:01,243 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:01,244 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:04:01,244 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:04:01,245 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:04:01,245 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:04:01,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:01,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:01,249 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:01,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:01,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:04:01,250 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:04:01,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:01,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:04:01,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:01,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:04:01,252 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:04:01,252 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:04:01,253 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:01,253 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:04:01,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:04:01,254 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:01,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:01,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:01,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:04:01,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:04:01,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:01,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:01,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:04:01,256 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:04:01,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:04:01,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:04:01,258 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:04:01,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:04:01,259 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:04:01,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:04:01,259 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2024-10-31 22:04:01,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:01,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:01,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:01,614 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:01,614 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:01,616 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i Unable to find full path for "g++" [2024-10-31 22:04:03,618 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:03,942 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:03,943 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-10-31 22:04:03,985 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/data/339ec4498/f0360bd20e194cd3b2b70d9b1f7b69e4/FLAGc8c85e8a4 [2024-10-31 22:04:04,010 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/data/339ec4498/f0360bd20e194cd3b2b70d9b1f7b69e4 [2024-10-31 22:04:04,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:04,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:04,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:04,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:04,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:04,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:04,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4690d01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04, skipping insertion in model container [2024-10-31 22:04:04,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:04,139 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:04,753 WARN L251 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_f004753b-f8fe-4989-b940-e68dc106f6e7/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[186287,186300] [2024-10-31 22:04:04,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:04,825 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:04,868 WARN L251 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_f004753b-f8fe-4989-b940-e68dc106f6e7/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[186287,186300] [2024-10-31 22:04:04,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:04,959 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:04,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04 WrapperNode [2024-10-31 22:04:04,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:04,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:04,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:04,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:04,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:04,989 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:05,018 INFO L138 Inliner]: procedures = 248, calls = 55, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 136 [2024-10-31 22:04:05,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:05,019 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:05,019 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:05,019 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:05,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:05,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:05,036 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:05,054 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 2, 15]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 2, 8]. [2024-10-31 22:04:05,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:05,054 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:05,073 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:05,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:05,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:05,086 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:05,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:05,094 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:05,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:05,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:05,095 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04" (1/1) ... [2024-10-31 22:04:05,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:05,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:05,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:05,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-10-31 22:04:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-10-31 22:04:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:04:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:04:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:04:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:04:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:04:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:04:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:04:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:04:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:04:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:04:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:04:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:04:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:04:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:04:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:04:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:04:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:04:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:04:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:04:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:05,219 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:04:05,564 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:05,566 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:05,853 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:04:05,853 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:06,049 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:06,049 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:04:06,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:06 BoogieIcfgContainer [2024-10-31 22:04:06,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:06,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:04:06,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:04:06,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:04:06,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:04:04" (1/3) ... [2024-10-31 22:04:06,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb07d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:06, skipping insertion in model container [2024-10-31 22:04:06,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:04" (2/3) ... [2024-10-31 22:04:06,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb07d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:06, skipping insertion in model container [2024-10-31 22:04:06,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:06" (3/3) ... [2024-10-31 22:04:06,061 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2024-10-31 22:04:06,082 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:04:06,082 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-31 22:04:06,082 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:04:06,140 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:04:06,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 62 transitions, 138 flow [2024-10-31 22:04:06,238 INFO L124 PetriNetUnfolderBase]: 8/81 cut-off events. [2024-10-31 22:04:06,239 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:04:06,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 81 events. 8/81 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 233 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 42. Up to 4 conditions per place. [2024-10-31 22:04:06,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 62 transitions, 138 flow [2024-10-31 22:04:06,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 55 transitions, 122 flow [2024-10-31 22:04:06,263 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:06,270 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, 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;@7f3418a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:06,270 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 22:04:06,279 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:04:06,279 INFO L124 PetriNetUnfolderBase]: 1/21 cut-off events. [2024-10-31 22:04:06,279 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:04:06,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:06,280 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:06,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-31 22:04:06,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:06,288 INFO L85 PathProgramCache]: Analyzing trace with hash -514444511, now seen corresponding path program 1 times [2024-10-31 22:04:06,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:06,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231055761] [2024-10-31 22:04:06,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:06,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:07,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:07,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:07,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231055761] [2024-10-31 22:04:07,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231055761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:07,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:07,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:07,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574943194] [2024-10-31 22:04:07,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:07,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:07,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:07,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:07,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:07,132 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 62 [2024-10-31 22:04:07,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-10-31 22:04:07,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:07,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 62 [2024-10-31 22:04:07,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:07,838 INFO L124 PetriNetUnfolderBase]: 1534/2551 cut-off events. [2024-10-31 22:04:07,838 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-10-31 22:04:07,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5067 conditions, 2551 events. 1534/2551 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 13152 event pairs, 1309 based on Foata normal form. 2/2398 useless extension candidates. Maximal degree in co-relation 4938. Up to 2130 conditions per place. [2024-10-31 22:04:07,865 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 52 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2024-10-31 22:04:07,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 64 transitions, 256 flow [2024-10-31 22:04:07,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:07,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:07,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-10-31 22:04:07,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.489247311827957 [2024-10-31 22:04:07,883 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 122 flow. Second operand 3 states and 91 transitions. [2024-10-31 22:04:07,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 64 transitions, 256 flow [2024-10-31 22:04:07,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 64 transitions, 248 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:04:07,896 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 116 flow [2024-10-31 22:04:07,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2024-10-31 22:04:07,904 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -4 predicate places. [2024-10-31 22:04:07,904 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 116 flow [2024-10-31 22:04:07,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-10-31 22:04:07,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:07,905 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:07,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:04:07,906 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-31 22:04:07,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:07,906 INFO L85 PathProgramCache]: Analyzing trace with hash -514381129, now seen corresponding path program 1 times [2024-10-31 22:04:07,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:07,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117809371] [2024-10-31 22:04:07,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:07,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:08,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:08,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:08,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117809371] [2024-10-31 22:04:08,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117809371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:08,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:08,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:08,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657205829] [2024-10-31 22:04:08,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:08,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:08,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:08,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:08,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:08,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 62 [2024-10-31 22:04:08,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-10-31 22:04:08,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:08,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 62 [2024-10-31 22:04:08,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:08,569 INFO L124 PetriNetUnfolderBase]: 1309/2209 cut-off events. [2024-10-31 22:04:08,569 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-10-31 22:04:08,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4479 conditions, 2209 events. 1309/2209 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 11399 event pairs, 1309 based on Foata normal form. 1/2074 useless extension candidates. Maximal degree in co-relation 3566. Up to 2119 conditions per place. [2024-10-31 22:04:08,583 INFO L140 encePairwiseOnDemand]: 59/62 looper letters, 39 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2024-10-31 22:04:08,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 53 transitions, 208 flow [2024-10-31 22:04:08,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:08,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:04:08,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions. [2024-10-31 22:04:08,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4596774193548387 [2024-10-31 22:04:08,586 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 116 flow. Second operand 4 states and 114 transitions. [2024-10-31 22:04:08,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 53 transitions, 208 flow [2024-10-31 22:04:08,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 53 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:08,591 INFO L231 Difference]: Finished difference. Result has 56 places, 51 transitions, 117 flow [2024-10-31 22:04:08,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=117, PETRI_PLACES=56, PETRI_TRANSITIONS=51} [2024-10-31 22:04:08,592 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-10-31 22:04:08,593 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 51 transitions, 117 flow [2024-10-31 22:04:08,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-10-31 22:04:08,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:08,593 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:08,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:04:08,594 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-31 22:04:08,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:08,594 INFO L85 PathProgramCache]: Analyzing trace with hash -459888639, now seen corresponding path program 1 times [2024-10-31 22:04:08,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:08,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74494183] [2024-10-31 22:04:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:08,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:08,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:08,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:08,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74494183] [2024-10-31 22:04:08,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74494183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:08,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:08,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:08,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875402880] [2024-10-31 22:04:08,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:08,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:08,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:08,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:08,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:08,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 62 [2024-10-31 22:04:08,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 51 transitions, 117 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-10-31 22:04:08,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:08,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 62 [2024-10-31 22:04:08,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:09,551 INFO L124 PetriNetUnfolderBase]: 1781/3023 cut-off events. [2024-10-31 22:04:09,551 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2024-10-31 22:04:09,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6107 conditions, 3023 events. 1781/3023 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 16671 event pairs, 1208 based on Foata normal form. 121/3007 useless extension candidates. Maximal degree in co-relation 6088. Up to 2067 conditions per place. [2024-10-31 22:04:09,569 INFO L140 encePairwiseOnDemand]: 51/62 looper letters, 62 selfloop transitions, 8 changer transitions 5/81 dead transitions. [2024-10-31 22:04:09,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 81 transitions, 327 flow [2024-10-31 22:04:09,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:09,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:04:09,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-10-31 22:04:09,572 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46774193548387094 [2024-10-31 22:04:09,572 INFO L175 Difference]: Start difference. First operand has 56 places, 51 transitions, 117 flow. Second operand 4 states and 116 transitions. [2024-10-31 22:04:09,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 81 transitions, 327 flow [2024-10-31 22:04:09,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 81 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:04:09,576 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 150 flow [2024-10-31 22:04:09,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2024-10-31 22:04:09,578 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2024-10-31 22:04:09,579 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 150 flow [2024-10-31 22:04:09,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-10-31 22:04:09,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:09,580 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:09,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:04:09,580 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-31 22:04:09,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:09,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1074804694, now seen corresponding path program 1 times [2024-10-31 22:04:09,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:09,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739291051] [2024-10-31 22:04:09,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:09,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:09,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:09,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:09,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739291051] [2024-10-31 22:04:09,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739291051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:09,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:09,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:09,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547185417] [2024-10-31 22:04:09,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:09,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:09,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:09,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:09,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:09,829 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 62 [2024-10-31 22:04:09,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2024-10-31 22:04:09,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:09,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 62 [2024-10-31 22:04:09,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:10,343 INFO L124 PetriNetUnfolderBase]: 1768/3072 cut-off events. [2024-10-31 22:04:10,343 INFO L125 PetriNetUnfolderBase]: For 746/746 co-relation queries the response was YES. [2024-10-31 22:04:10,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7004 conditions, 3072 events. 1768/3072 cut-off events. For 746/746 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 17877 event pairs, 919 based on Foata normal form. 0/2887 useless extension candidates. Maximal degree in co-relation 5915. Up to 2102 conditions per place. [2024-10-31 22:04:10,364 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 55 selfloop transitions, 7 changer transitions 0/73 dead transitions. [2024-10-31 22:04:10,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 73 transitions, 328 flow [2024-10-31 22:04:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:10,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:10,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2024-10-31 22:04:10,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6075268817204301 [2024-10-31 22:04:10,367 INFO L175 Difference]: Start difference. First operand has 60 places, 51 transitions, 150 flow. Second operand 3 states and 113 transitions. [2024-10-31 22:04:10,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 73 transitions, 328 flow [2024-10-31 22:04:10,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 73 transitions, 311 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-10-31 22:04:10,373 INFO L231 Difference]: Finished difference. Result has 57 places, 57 transitions, 195 flow [2024-10-31 22:04:10,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=57, PETRI_TRANSITIONS=57} [2024-10-31 22:04:10,374 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 0 predicate places. [2024-10-31 22:04:10,375 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 57 transitions, 195 flow [2024-10-31 22:04:10,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2024-10-31 22:04:10,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:10,375 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:10,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:04:10,376 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-31 22:04:10,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1040793309, now seen corresponding path program 1 times [2024-10-31 22:04:10,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:10,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104988643] [2024-10-31 22:04:10,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:10,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:10,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:10,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:10,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104988643] [2024-10-31 22:04:10,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104988643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:10,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:10,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:10,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410758694] [2024-10-31 22:04:10,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:10,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:10,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:10,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:10,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:10,536 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 62 [2024-10-31 22:04:10,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 57 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-10-31 22:04:10,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:10,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 62 [2024-10-31 22:04:10,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:11,150 INFO L124 PetriNetUnfolderBase]: 2086/3618 cut-off events. [2024-10-31 22:04:11,150 INFO L125 PetriNetUnfolderBase]: For 2140/2140 co-relation queries the response was YES. [2024-10-31 22:04:11,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9247 conditions, 3618 events. 2086/3618 cut-off events. For 2140/2140 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 21466 event pairs, 1168 based on Foata normal form. 0/3496 useless extension candidates. Maximal degree in co-relation 3014. Up to 2485 conditions per place. [2024-10-31 22:04:11,179 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 59 selfloop transitions, 12 changer transitions 0/82 dead transitions. [2024-10-31 22:04:11,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 82 transitions, 437 flow [2024-10-31 22:04:11,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:11,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:11,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2024-10-31 22:04:11,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2024-10-31 22:04:11,182 INFO L175 Difference]: Start difference. First operand has 57 places, 57 transitions, 195 flow. Second operand 3 states and 112 transitions. [2024-10-31 22:04:11,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 82 transitions, 437 flow [2024-10-31 22:04:11,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 82 transitions, 397 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:11,196 INFO L231 Difference]: Finished difference. Result has 59 places, 67 transitions, 289 flow [2024-10-31 22:04:11,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=289, PETRI_PLACES=59, PETRI_TRANSITIONS=67} [2024-10-31 22:04:11,201 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2024-10-31 22:04:11,202 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 67 transitions, 289 flow [2024-10-31 22:04:11,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-10-31 22:04:11,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:11,202 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:11,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:04:11,203 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-31 22:04:11,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:11,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1171513412, now seen corresponding path program 1 times [2024-10-31 22:04:11,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:11,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337840573] [2024-10-31 22:04:11,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:11,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:11,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:11,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:11,308 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:04:11,309 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2024-10-31 22:04:11,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-10-31 22:04:11,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-10-31 22:04:11,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-10-31 22:04:11,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-10-31 22:04:11,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-10-31 22:04:11,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-10-31 22:04:11,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-10-31 22:04:11,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:04:11,314 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-31 22:04:11,367 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:04:11,367 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:04:11,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:04:11 BasicIcfg [2024-10-31 22:04:11,376 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:04:11,376 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:04:11,377 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:04:11,377 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:04:11,377 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:06" (3/4) ... [2024-10-31 22:04:11,379 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-31 22:04:11,456 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:04:11,456 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:04:11,457 INFO L158 Benchmark]: Toolchain (without parser) took 7443.25ms. Allocated memory was 140.5MB in the beginning and 283.1MB in the end (delta: 142.6MB). Free memory was 99.2MB in the beginning and 163.4MB in the end (delta: -64.2MB). Peak memory consumption was 81.4MB. Max. memory is 16.1GB. [2024-10-31 22:04:11,458 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 140.5MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:04:11,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 944.60ms. Allocated memory is still 140.5MB. Free memory was 98.7MB in the beginning and 61.7MB in the end (delta: 37.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-10-31 22:04:11,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.79ms. Allocated memory is still 140.5MB. Free memory was 61.7MB in the beginning and 59.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:11,463 INFO L158 Benchmark]: Boogie Preprocessor took 74.46ms. Allocated memory is still 140.5MB. Free memory was 58.9MB in the beginning and 55.2MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:11,463 INFO L158 Benchmark]: RCFGBuilder took 955.73ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 55.2MB in the beginning and 110.1MB in the end (delta: -54.9MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:11,464 INFO L158 Benchmark]: TraceAbstraction took 5323.34ms. Allocated memory was 182.5MB in the beginning and 283.1MB in the end (delta: 100.7MB). Free memory was 109.1MB in the beginning and 167.6MB in the end (delta: -58.5MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2024-10-31 22:04:11,464 INFO L158 Benchmark]: Witness Printer took 80.05ms. Allocated memory is still 283.1MB. Free memory was 167.6MB in the beginning and 163.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:04:11,467 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 140.5MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 944.60ms. Allocated memory is still 140.5MB. Free memory was 98.7MB in the beginning and 61.7MB in the end (delta: 37.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.79ms. Allocated memory is still 140.5MB. Free memory was 61.7MB in the beginning and 59.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.46ms. Allocated memory is still 140.5MB. Free memory was 58.9MB in the beginning and 55.2MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 955.73ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 55.2MB in the beginning and 110.1MB in the end (delta: -54.9MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5323.34ms. Allocated memory was 182.5MB in the beginning and 283.1MB in the end (delta: 100.7MB). Free memory was 109.1MB in the beginning and 167.6MB in the end (delta: -58.5MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. * Witness Printer took 80.05ms. Allocated memory is still 283.1MB. Free memory was 167.6MB in the beginning and 163.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3887]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L3888] 0 pthread_t t1,t2; [L3962] CALL, EXPR 0 my_drv_init() [L3956] 0 return 0; [L3962] RET, EXPR 0 my_drv_init() [L3962] 0 int ret = my_drv_init(); [L3963] COND TRUE 0 ret==0 [L3964] 0 int probe_ret; [L3965] 0 struct my_data data; [L3966] CALL, EXPR 0 my_drv_probe(&data) [L3919] 0 struct device *d = &data->dev; [L3923] 0 data->shared.a = 0 [L3924] 0 data->shared.b = 0 [L3925] 0 int res = __VERIFIER_nondet_int(); [L3926] COND FALSE 0 !(\read(res)) [L3929] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={6:24}, \old(data)={6:0}, d={6:24}, data={6:0}, res=0, t1=-1, t2=0] [L3902] 1 struct device *dev = (struct device*)arg; [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3930] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={6:24}, \old(data)={6:0}, arg={6:24}, d={6:24}, data={6:0}, data={6:0}, dev={6:24}, res=0, t1=-1, t2=0] [L3931] 0 return 0; VAL [\old(arg)={6:24}, \old(data)={6:0}, \result=0, arg={6:24}, d={6:24}, data={6:0}, data={6:0}, dev={6:24}, res=0, t1=-1, t2=0] [L3966] RET, EXPR 0 my_drv_probe(&data) [L3966] 0 probe_ret = my_drv_probe(&data) [L3967] COND TRUE 0 probe_ret==0 [L3968] CALL 0 my_drv_disconnect(&data) [L3937] 0 void *status; VAL [\old(arg)={6:24}, \old(data)={6:0}, arg={6:24}, data={6:0}, data={6:0}, dev={6:24}, status={5:0}, t1=-1, t2=0] [L3940] 0 data->shared.a = 3 VAL [\old(arg)={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1=-1, t2=0] [L3907] 1 data->shared.a = 1 VAL [\old(arg)={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1=-1, t2=0] [L3943] 0 data->shared.b = 3 VAL [\old(arg)={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1=-1, t2=0] [L3946] EXPR 0 data->shared.a [L3946] CALL 0 ldv_assert(data->shared.a==3) [L3887] COND TRUE 0 !expression [L3887] 0 reach_error() VAL [\old(arg)={6:24}, \old(expression)=0, arg={6:24}, data={6:0}, dev={6:24}, expression=0, t1=-1, t2=0] - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3930]: 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: 3929]: 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 4 procedures, 67 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 532 IncrementalHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 11 mSDtfsCounter, 532 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=289occurred in iteration=5, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:04:11,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f004753b-f8fe-4989-b940-e68dc106f6e7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE