./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx --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 fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:00:36,222 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:00:36,311 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 21:00:36,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:00:36,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:00:36,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:00:36,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:00:36,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:00:36,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:00:36,347 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:00:36,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:00:36,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:00:36,349 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:00:36,349 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:00:36,350 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:00:36,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:00:36,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:00:36,351 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:00:36,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:00:36,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:00:36,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:00:36,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:00:36,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:00:36,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:00:36,355 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:00:36,355 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:00:36,355 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:00:36,356 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:00:36,356 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:00:36,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:00:36,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:00:36,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:36,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:00:36,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:00:36,359 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:00:36,359 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:00:36,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:00:36,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:00:36,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:00:36,375 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:00:36,375 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:00:36,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:00:36,376 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_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db [2023-11-21 21:00:36,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:00:36,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:00:36,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:00:36,683 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:00:36,683 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:00:36,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2023-11-21 21:00:39,763 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:00:40,128 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:00:40,134 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2023-11-21 21:00:40,169 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/data/5b27a70d2/c0c19fc10b814458854ec6ab72959f27/FLAG86d806917 [2023-11-21 21:00:40,191 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/data/5b27a70d2/c0c19fc10b814458854ec6ab72959f27 [2023-11-21 21:00:40,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:00:40,204 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:00:40,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:40,206 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:00:40,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:00:40,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:40" (1/1) ... [2023-11-21 21:00:40,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fa26b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:40, skipping insertion in model container [2023-11-21 21:00:40,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:40" (1/1) ... [2023-11-21 21:00:40,297 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:00:41,202 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_1c7299c8-9861-49d2-93f1-7f9e4613e040/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2023-11-21 21:00:41,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:41,259 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:00:41,306 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_1c7299c8-9861-49d2-93f1-7f9e4613e040/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2023-11-21 21:00:41,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:41,507 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:00:41,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41 WrapperNode [2023-11-21 21:00:41,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:41,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:41,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:00:41,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:00:41,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,552 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,586 INFO L138 Inliner]: procedures = 483, calls = 47, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 134 [2023-11-21 21:00:41,586 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:41,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:00:41,587 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:00:41,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:00:41,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,606 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,624 INFO L187 HeapSplitter]: Split 23 memory accesses to 7 slices as follows [2, 10, 0, 3, 3, 2, 3] [2023-11-21 21:00:41,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:00:41,670 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:00:41,670 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:00:41,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:00:41,671 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:41,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:41,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:41,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:00:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:00:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 21:00:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 21:00:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 21:00:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 21:00:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 21:00:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 21:00:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 21:00:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 21:00:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:00:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 21:00:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 21:00:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 21:00:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-21 21:00:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-21 21:00:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-21 21:00:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-21 21:00:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:00:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:00:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-21 21:00:41,786 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-21 21:00:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:00:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 21:00:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 21:00:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 21:00:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 21:00:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 21:00:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 21:00:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 21:00:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 21:00:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:00:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 21:00:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 21:00:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 21:00:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 21:00:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 21:00:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 21:00:41,794 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 21:00:42,177 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:00:42,180 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:00:42,529 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:00:42,686 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:00:42,686 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 21:00:42,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:42 BoogieIcfgContainer [2023-11-21 21:00:42,688 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:00:42,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:00:42,690 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:00:42,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:00:42,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:00:40" (1/3) ... [2023-11-21 21:00:42,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b5f8c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:42, skipping insertion in model container [2023-11-21 21:00:42,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (2/3) ... [2023-11-21 21:00:42,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b5f8c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:42, skipping insertion in model container [2023-11-21 21:00:42,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:42" (3/3) ... [2023-11-21 21:00:42,697 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2023-11-21 21:00:42,706 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 21:00:42,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:00:42,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-21 21:00:42,715 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 21:00:42,765 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 21:00:42,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 60 transitions, 134 flow [2023-11-21 21:00:42,838 INFO L124 PetriNetUnfolderBase]: 10/73 cut-off events. [2023-11-21 21:00:42,838 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 21:00:42,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 10/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 145 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 39. Up to 4 conditions per place. [2023-11-21 21:00:42,843 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 60 transitions, 134 flow [2023-11-21 21:00:42,847 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 53 transitions, 118 flow [2023-11-21 21:00:42,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:00:42,865 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@3b1d2bb1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:00:42,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-21 21:00:42,869 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 21:00:42,869 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2023-11-21 21:00:42,869 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:00:42,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:42,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-21 21:00:42,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-21 21:00:42,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:42,877 INFO L85 PathProgramCache]: Analyzing trace with hash 13592748, now seen corresponding path program 1 times [2023-11-21 21:00:42,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:42,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221672907] [2023-11-21 21:00:42,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:42,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:43,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:43,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:43,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221672907] [2023-11-21 21:00:43,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221672907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:43,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:43,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:00:43,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172918787] [2023-11-21 21:00:43,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:43,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:43,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:43,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:43,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:43,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2023-11-21 21:00:43,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-21 21:00:43,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:43,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2023-11-21 21:00:43,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:44,185 INFO L124 PetriNetUnfolderBase]: 466/823 cut-off events. [2023-11-21 21:00:44,186 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-21 21:00:44,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1648 conditions, 823 events. 466/823 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3413 event pairs, 345 based on Foata normal form. 3/822 useless extension candidates. Maximal degree in co-relation 1538. Up to 602 conditions per place. [2023-11-21 21:00:44,202 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 39 selfloop transitions, 10 changer transitions 0/54 dead transitions. [2023-11-21 21:00:44,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 218 flow [2023-11-21 21:00:44,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:44,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:00:44,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2023-11-21 21:00:44,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2023-11-21 21:00:44,220 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 84 transitions. [2023-11-21 21:00:44,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 84 transitions. [2023-11-21 21:00:44,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:44,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 84 transitions. [2023-11-21 21:00:44,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-11-21 21:00:44,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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) [2023-11-21 21:00:44,235 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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) [2023-11-21 21:00:44,237 INFO L175 Difference]: Start difference. First operand has 53 places, 53 transitions, 118 flow. Second operand 3 states and 84 transitions. [2023-11-21 21:00:44,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 218 flow [2023-11-21 21:00:44,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 210 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 21:00:44,250 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 112 flow [2023-11-21 21:00:44,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2023-11-21 21:00:44,256 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -6 predicate places. [2023-11-21 21:00:44,256 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 112 flow [2023-11-21 21:00:44,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-21 21:00:44,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:44,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 21:00:44,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:00:44,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-21 21:00:44,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:44,259 INFO L85 PathProgramCache]: Analyzing trace with hash 177760495, now seen corresponding path program 1 times [2023-11-21 21:00:44,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:44,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118753258] [2023-11-21 21:00:44,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:44,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:44,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:44,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:44,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118753258] [2023-11-21 21:00:44,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118753258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:44,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:44,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 21:00:44,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103265335] [2023-11-21 21:00:44,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:44,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 21:00:44,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:44,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:00:44,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:00:44,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2023-11-21 21:00:44,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2023-11-21 21:00:44,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:44,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2023-11-21 21:00:44,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:44,908 INFO L124 PetriNetUnfolderBase]: 466/875 cut-off events. [2023-11-21 21:00:44,909 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-21 21:00:44,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1766 conditions, 875 events. 466/875 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4217 event pairs, 95 based on Foata normal form. 1/875 useless extension candidates. Maximal degree in co-relation 845. Up to 418 conditions per place. [2023-11-21 21:00:44,918 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 49 selfloop transitions, 9 changer transitions 0/62 dead transitions. [2023-11-21 21:00:44,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 62 transitions, 264 flow [2023-11-21 21:00:44,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 21:00:44,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 21:00:44,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2023-11-21 21:00:44,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36333333333333334 [2023-11-21 21:00:44,931 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 109 transitions. [2023-11-21 21:00:44,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 109 transitions. [2023-11-21 21:00:44,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:44,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 109 transitions. [2023-11-21 21:00:44,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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) [2023-11-21 21:00:44,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 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) [2023-11-21 21:00:44,937 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 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) [2023-11-21 21:00:44,937 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 112 flow. Second operand 5 states and 109 transitions. [2023-11-21 21:00:44,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 62 transitions, 264 flow [2023-11-21 21:00:44,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:00:44,945 INFO L231 Difference]: Finished difference. Result has 47 places, 42 transitions, 106 flow [2023-11-21 21:00:44,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=106, PETRI_PLACES=47, PETRI_TRANSITIONS=42} [2023-11-21 21:00:44,946 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -6 predicate places. [2023-11-21 21:00:44,947 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 42 transitions, 106 flow [2023-11-21 21:00:44,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2023-11-21 21:00:44,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:44,947 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:44,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 21:00:44,948 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-21 21:00:44,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:44,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1464707490, now seen corresponding path program 1 times [2023-11-21 21:00:44,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:44,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006044778] [2023-11-21 21:00:44,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:44,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:45,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:45,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006044778] [2023-11-21 21:00:45,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006044778] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:45,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:45,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 21:00:45,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511149335] [2023-11-21 21:00:45,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:45,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 21:00:45,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:45,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:00:45,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:00:45,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2023-11-21 21:00:45,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 42 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2023-11-21 21:00:45,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:45,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2023-11-21 21:00:45,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:45,577 INFO L124 PetriNetUnfolderBase]: 406/708 cut-off events. [2023-11-21 21:00:45,577 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-21 21:00:45,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1537 conditions, 708 events. 406/708 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2838 event pairs, 225 based on Foata normal form. 37/744 useless extension candidates. Maximal degree in co-relation 369. Up to 407 conditions per place. [2023-11-21 21:00:45,582 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 25 selfloop transitions, 6 changer transitions 16/50 dead transitions. [2023-11-21 21:00:45,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 50 transitions, 216 flow [2023-11-21 21:00:45,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 21:00:45,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 21:00:45,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2023-11-21 21:00:45,587 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36666666666666664 [2023-11-21 21:00:45,588 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 88 transitions. [2023-11-21 21:00:45,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 88 transitions. [2023-11-21 21:00:45,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:45,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 88 transitions. [2023-11-21 21:00:45,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2023-11-21 21:00:45,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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) [2023-11-21 21:00:45,591 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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) [2023-11-21 21:00:45,592 INFO L175 Difference]: Start difference. First operand has 47 places, 42 transitions, 106 flow. Second operand 4 states and 88 transitions. [2023-11-21 21:00:45,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 50 transitions, 216 flow [2023-11-21 21:00:45,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 50 transitions, 198 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 21:00:45,596 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 84 flow [2023-11-21 21:00:45,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2023-11-21 21:00:45,598 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -9 predicate places. [2023-11-21 21:00:45,598 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 84 flow [2023-11-21 21:00:45,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2023-11-21 21:00:45,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:45,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:45,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 21:00:45,599 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-21 21:00:45,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:45,600 INFO L85 PathProgramCache]: Analyzing trace with hash -190533719, now seen corresponding path program 1 times [2023-11-21 21:00:45,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:45,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39895125] [2023-11-21 21:00:45,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:45,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:46,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:46,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39895125] [2023-11-21 21:00:46,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39895125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:46,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:46,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 21:00:46,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390472140] [2023-11-21 21:00:46,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:46,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 21:00:46,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:46,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 21:00:46,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-21 21:00:46,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2023-11-21 21:00:46,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 84 flow. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 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) [2023-11-21 21:00:46,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:00:46,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2023-11-21 21:00:46,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:00:47,133 INFO L124 PetriNetUnfolderBase]: 483/942 cut-off events. [2023-11-21 21:00:47,133 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 21:00:47,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1810 conditions, 942 events. 483/942 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4991 event pairs, 30 based on Foata normal form. 8/950 useless extension candidates. Maximal degree in co-relation 1779. Up to 223 conditions per place. [2023-11-21 21:00:47,141 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 77 selfloop transitions, 18 changer transitions 0/103 dead transitions. [2023-11-21 21:00:47,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 103 transitions, 417 flow [2023-11-21 21:00:47,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 21:00:47,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-21 21:00:47,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 317 transitions. [2023-11-21 21:00:47,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5283333333333333 [2023-11-21 21:00:47,145 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 317 transitions. [2023-11-21 21:00:47,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 317 transitions. [2023-11-21 21:00:47,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:47,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 317 transitions. [2023-11-21 21:00:47,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.7) internal successors, (317), 10 states have internal predecessors, (317), 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) [2023-11-21 21:00:47,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 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) [2023-11-21 21:00:47,151 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 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) [2023-11-21 21:00:47,151 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 84 flow. Second operand 10 states and 317 transitions. [2023-11-21 21:00:47,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 103 transitions, 417 flow [2023-11-21 21:00:47,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 103 transitions, 403 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:00:47,155 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 202 flow [2023-11-21 21:00:47,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=202, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2023-11-21 21:00:47,156 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 1 predicate places. [2023-11-21 21:00:47,156 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 202 flow [2023-11-21 21:00:47,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 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) [2023-11-21 21:00:47,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:00:47,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:47,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 21:00:47,157 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-21 21:00:47,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:47,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1592918669, now seen corresponding path program 2 times [2023-11-21 21:00:47,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:47,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579439550] [2023-11-21 21:00:47,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:47,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:47,236 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:47,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:47,325 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:00:47,326 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2023-11-21 21:00:47,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2023-11-21 21:00:47,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2023-11-21 21:00:47,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2023-11-21 21:00:47,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2023-11-21 21:00:47,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2023-11-21 21:00:47,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-11-21 21:00:47,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-11-21 21:00:47,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 21:00:47,330 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-11-21 21:00:47,336 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 21:00:47,336 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:00:47,400 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated [2023-11-21 21:00:47,401 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre40 could not be translated [2023-11-21 21:00:47,403 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-21 21:00:47,403 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet43 [2023-11-21 21:00:47,404 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet45 [2023-11-21 21:00:47,404 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-21 21:00:47,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:00:47 BasicIcfg [2023-11-21 21:00:47,415 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:00:47,416 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:00:47,416 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:00:47,416 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:00:47,417 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:42" (3/4) ... [2023-11-21 21:00:47,417 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 21:00:47,442 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated [2023-11-21 21:00:47,446 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre40 could not be translated [2023-11-21 21:00:47,453 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet43 [2023-11-21 21:00:47,454 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-21 21:00:47,454 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet45 [2023-11-21 21:00:47,455 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-21 21:00:47,517 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 21:00:47,517 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:00:47,518 INFO L158 Benchmark]: Toolchain (without parser) took 7318.93ms. Allocated memory was 113.2MB in the beginning and 201.3MB in the end (delta: 88.1MB). Free memory was 69.5MB in the beginning and 92.0MB in the end (delta: -22.6MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2023-11-21 21:00:47,518 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:00:47,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1302.77ms. Allocated memory was 113.2MB in the beginning and 167.8MB in the end (delta: 54.5MB). Free memory was 69.5MB in the beginning and 108.8MB in the end (delta: -39.3MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2023-11-21 21:00:47,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.51ms. Allocated memory is still 167.8MB. Free memory was 108.8MB in the beginning and 105.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 21:00:47,520 INFO L158 Benchmark]: Boogie Preprocessor took 81.68ms. Allocated memory is still 167.8MB. Free memory was 105.4MB in the beginning and 100.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 21:00:47,520 INFO L158 Benchmark]: RCFGBuilder took 1018.61ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 109.0MB in the end (delta: -8.6MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2023-11-21 21:00:47,520 INFO L158 Benchmark]: TraceAbstraction took 4724.96ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 109.0MB in the beginning and 100.4MB in the end (delta: 8.5MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2023-11-21 21:00:47,521 INFO L158 Benchmark]: Witness Printer took 101.74ms. Allocated memory is still 201.3MB. Free memory was 100.4MB in the beginning and 92.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 21:00:47,524 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1302.77ms. Allocated memory was 113.2MB in the beginning and 167.8MB in the end (delta: 54.5MB). Free memory was 69.5MB in the beginning and 108.8MB in the end (delta: -39.3MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.51ms. Allocated memory is still 167.8MB. Free memory was 108.8MB in the beginning and 105.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.68ms. Allocated memory is still 167.8MB. Free memory was 105.4MB in the beginning and 100.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1018.61ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 109.0MB in the end (delta: -8.6MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4724.96ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 109.0MB in the beginning and 100.4MB in the end (delta: 8.5MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. * Witness Printer took 101.74ms. Allocated memory is still 201.3MB. Free memory was 100.4MB in the beginning and 92.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet43 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet45 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet43 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet45 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 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: - CounterExampleResult [Line: 1693]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1694] 0 pthread_t t1,t2; [L1694] 0 pthread_t t1,t2; [L1694] 0 pthread_t t1,t2; [L1694] 0 pthread_t t1,t2; [L1746] CALL, EXPR 0 my_drv_init() [L1740] 0 return 0; [L1746] RET, EXPR 0 my_drv_init() [L1746] 0 int ret = my_drv_init(); [L1747] COND TRUE 0 ret==0 [L1748] 0 int probe_ret; [L1749] 0 struct my_data data; [L1750] CALL, EXPR 0 my_drv_probe(&data) [L1717] 0 struct device *d = &data->dev; [L1719] 0 data->shared.a = 0 [L1720] 0 data->shared.b = 0 [L1721] EXPR 0 data->shared.a [L1721] CALL 0 ldv_assert(data->shared.a==0) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, t1={3:0}, t2={4:0}] [L1721] RET 0 ldv_assert(data->shared.a==0) [L1722] EXPR 0 data->shared.b [L1722] CALL 0 ldv_assert(data->shared.b==0) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, t1={3:0}, t2={4:0}] [L1722] RET 0 ldv_assert(data->shared.b==0) [L1723] 0 int res = __VERIFIER_nondet_int(); [L1724] COND FALSE 0 !(\read(res)) [L1726] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={6:24}, d={6:24}, data={6:0}, data={6:0}, res=0, t1={3:0}, t2={4:0}] [L1727] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [arg={6:24}, d={6:24}, data={6:0}, data={6:0}, res=0, t1={3:0}, t2={4:0}] [L1728] 0 return 0; VAL [\result=0, arg={6:24}, d={6:24}, data={6:0}, data={6:0}, res=0, t1={3:0}, t2={4:0}] [L1707] 2 struct device *dev = (struct device*)arg; [L1708] 2 struct my_data *data; [L1709] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1709] 2 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1709] 2 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1709] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1711] 2 data->shared.a = 1 [L1712] EXPR 2 data->shared.b [L1712] 2 data->shared.b = data->shared.b + 1 [L1714] 2 return 0; [L1707] 1 struct device *dev = (struct device*)arg; [L1708] 1 struct my_data *data; [L1709] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1709] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1709] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1709] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1711] 1 data->shared.a = 1 [L1712] EXPR 1 data->shared.b [L1712] 1 data->shared.b = data->shared.b + 1 [L1714] 1 return 0; [L1750] RET, EXPR 0 my_drv_probe(&data) [L1750] 0 probe_ret = my_drv_probe(&data) [L1751] COND TRUE 0 probe_ret==0 [L1752] CALL 0 my_drv_disconnect(&data) [L1734] 0 void *status; [L1735] 0 \read(t1) VAL [\result={0:0}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={3:0}, t2={4:0}] [L1735] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, status={5:0}, t1={3:0}, t2={4:0}] [L1736] 0 \read(t2) VAL [\result={0:0}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={3:0}, t2={4:0}] [L1736] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, status={5:0}, t1={3:0}, t2={4:0}] [L1752] RET 0 my_drv_disconnect(&data) [L1753] EXPR 0 data.shared.a [L1753] CALL 0 ldv_assert(data.shared.a==1) [L1693] COND TRUE 0 !expression VAL [\old(expression)=0, \result={0:0}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, expression=0, t1={3:0}, t2={4:0}] [L1693] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1693]: 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: 1693]: 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: 1693]: 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: 1693]: 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: 1693]: 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: 1726]: 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: 1727]: 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, 60 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: 4.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 585 IncrementalHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 11 mSDtfsCounter, 585 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 1.8s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 208 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2023-11-21 21:00:47,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7299c8-9861-49d2-93f1-7f9e4613e040/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE