./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.4-dev-a340643-m [2024-01-27 16:16:52,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 16:16:52,151 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 16:16:52,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 16:16:52,164 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 16:16:52,183 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 16:16:52,184 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 16:16:52,184 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 16:16:52,185 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 16:16:52,185 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 16:16:52,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 16:16:52,186 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 16:16:52,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 16:16:52,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 16:16:52,187 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 16:16:52,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 16:16:52,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 16:16:52,188 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 16:16:52,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 16:16:52,189 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 16:16:52,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 16:16:52,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 16:16:52,197 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 16:16:52,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 16:16:52,200 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 16:16:52,200 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 16:16:52,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 16:16:52,201 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 16:16:52,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 16:16:52,203 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 16:16:52,203 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 16:16:52,203 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 16:16:52,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 16:16:52,204 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 16:16:52,204 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 16:16:52,204 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 16:16:52,204 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 16:16:52,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 16:16:52,205 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 16:16:52,205 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 16:16:52,205 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 16:16:52,206 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 16:16:52,207 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 16:16:52,207 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2024-01-27 16:16:52,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 16:16:52,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 16:16:52,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 16:16:52,435 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 16:16:52,435 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 16:16:52,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2024-01-27 16:16:53,450 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 16:16:53,666 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 16:16:53,672 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2024-01-27 16:16:53,704 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96911514b/885cb0d593484a2d8300a3c8e30575f4/FLAG982fca384 [2024-01-27 16:16:53,719 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96911514b/885cb0d593484a2d8300a3c8e30575f4 [2024-01-27 16:16:53,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 16:16:53,723 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-01-27 16:16:53,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 16:16:53,726 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 16:16:53,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 16:16:53,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 04:16:53" (1/1) ... [2024-01-27 16:16:53,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb33aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:53, skipping insertion in model container [2024-01-27 16:16:53,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 04:16:53" (1/1) ... [2024-01-27 16:16:53,781 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 16:16:54,037 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i[186287,186300] [2024-01-27 16:16:54,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 16:16:54,080 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 16:16:54,107 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i[186287,186300] [2024-01-27 16:16:54,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 16:16:54,146 INFO L206 MainTranslator]: Completed translation [2024-01-27 16:16:54,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54 WrapperNode [2024-01-27 16:16:54,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 16:16:54,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 16:16:54,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 16:16:54,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 16:16:54,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54" (1/1) ... [2024-01-27 16:16:54,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54" (1/1) ... [2024-01-27 16:16:54,198 INFO L138 Inliner]: procedures = 248, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 144 [2024-01-27 16:16:54,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 16:16:54,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 16:16:54,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 16:16:54,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 16:16:54,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54" (1/1) ... [2024-01-27 16:16:54,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54" (1/1) ... [2024-01-27 16:16:54,226 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54" (1/1) ... [2024-01-27 16:16:54,242 INFO L175 MemorySlicer]: Split 25 memory accesses to 5 slices as follows [2, 3, 3, 15, 2]. 60 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 1, 1, 0, 0]. The 12 writes are split as follows [0, 1, 1, 8, 2]. [2024-01-27 16:16:54,252 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54" (1/1) ... [2024-01-27 16:16:54,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54" (1/1) ... [2024-01-27 16:16:54,261 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54" (1/1) ... [2024-01-27 16:16:54,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54" (1/1) ... [2024-01-27 16:16:54,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54" (1/1) ... [2024-01-27 16:16:54,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54" (1/1) ... [2024-01-27 16:16:54,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 16:16:54,303 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 16:16:54,303 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 16:16:54,303 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 16:16:54,304 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54" (1/1) ... [2024-01-27 16:16:54,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 16:16:54,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 16:16:54,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 16:16:54,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 16:16:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-01-27 16:16:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-01-27 16:16:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 16:16:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 16:16:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 16:16:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 16:16:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 16:16:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 16:16:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 16:16:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 16:16:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 16:16:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 16:16:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 16:16:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 16:16:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 16:16:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 16:16:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 16:16:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 16:16:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 16:16:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-01-27 16:16:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-01-27 16:16:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-01-27 16:16:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-01-27 16:16:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-01-27 16:16:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 16:16:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 16:16:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 16:16:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 16:16:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 16:16:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 16:16:54,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 16:16:54,377 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 16:16:54,593 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 16:16:54,595 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 16:16:54,833 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 16:16:54,833 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 16:16:54,989 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 16:16:54,989 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 16:16:54,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 04:16:54 BoogieIcfgContainer [2024-01-27 16:16:54,990 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 16:16:54,991 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 16:16:54,991 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 16:16:54,994 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 16:16:54,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 04:16:53" (1/3) ... [2024-01-27 16:16:54,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433f5e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 04:16:54, skipping insertion in model container [2024-01-27 16:16:54,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:16:54" (2/3) ... [2024-01-27 16:16:54,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433f5e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 04:16:54, skipping insertion in model container [2024-01-27 16:16:54,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 04:16:54" (3/3) ... [2024-01-27 16:16:54,996 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2024-01-27 16:16:55,002 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-27 16:16:55,010 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 16:16:55,010 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-01-27 16:16:55,010 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 16:16:55,049 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-27 16:16:55,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 63 transitions, 140 flow [2024-01-27 16:16:55,127 INFO L124 PetriNetUnfolderBase]: 8/83 cut-off events. [2024-01-27 16:16:55,127 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 16:16:55,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 83 events. 8/83 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 238 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 43. Up to 4 conditions per place. [2024-01-27 16:16:55,131 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 63 transitions, 140 flow [2024-01-27 16:16:55,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 56 transitions, 124 flow [2024-01-27 16:16:55,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 16:16:55,152 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;@3925aacc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 16:16:55,153 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-01-27 16:16:55,158 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 16:16:55,158 INFO L124 PetriNetUnfolderBase]: 1/21 cut-off events. [2024-01-27 16:16:55,159 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 16:16:55,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:16:55,159 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 16:16:55,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 16:16:55,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:16:55,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1822845025, now seen corresponding path program 1 times [2024-01-27 16:16:55,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:16:55,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157981715] [2024-01-27 16:16:55,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:16:55,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:16:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:16:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:16:55,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:16:55,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157981715] [2024-01-27 16:16:55,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157981715] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:16:55,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:16:55,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 16:16:55,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503919350] [2024-01-27 16:16:55,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:16:55,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 16:16:55,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:16:55,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 16:16:55,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 16:16:55,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 63 [2024-01-27 16:16:55,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 56 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-01-27 16:16:55,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:16:55,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 63 [2024-01-27 16:16:55,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:16:56,165 INFO L124 PetriNetUnfolderBase]: 1534/2565 cut-off events. [2024-01-27 16:16:56,166 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-01-27 16:16:56,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5081 conditions, 2565 events. 1534/2565 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 13339 event pairs, 1309 based on Foata normal form. 2/2420 useless extension candidates. Maximal degree in co-relation 4951. Up to 2130 conditions per place. [2024-01-27 16:16:56,181 INFO L140 encePairwiseOnDemand]: 54/63 looper letters, 52 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2024-01-27 16:16:56,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 65 transitions, 258 flow [2024-01-27 16:16:56,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 16:16:56,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 16:16:56,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-01-27 16:16:56,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4973544973544973 [2024-01-27 16:16:56,193 INFO L175 Difference]: Start difference. First operand has 58 places, 56 transitions, 124 flow. Second operand 3 states and 94 transitions. [2024-01-27 16:16:56,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 65 transitions, 258 flow [2024-01-27 16:16:56,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 65 transitions, 250 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-27 16:16:56,202 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 118 flow [2024-01-27 16:16:56,204 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2024-01-27 16:16:56,206 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -4 predicate places. [2024-01-27 16:16:56,207 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 118 flow [2024-01-27 16:16:56,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-01-27 16:16:56,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:16:56,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 16:16:56,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 16:16:56,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 16:16:56,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:16:56,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1822780683, now seen corresponding path program 1 times [2024-01-27 16:16:56,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:16:56,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950002009] [2024-01-27 16:16:56,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:16:56,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:16:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:16:56,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:16:56,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:16:56,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950002009] [2024-01-27 16:16:56,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950002009] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:16:56,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:16:56,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 16:16:56,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741013751] [2024-01-27 16:16:56,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:16:56,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 16:16:56,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:16:56,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 16:16:56,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 16:16:56,295 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 63 [2024-01-27 16:16:56,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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) [2024-01-27 16:16:56,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:16:56,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 63 [2024-01-27 16:16:56,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:16:56,552 INFO L124 PetriNetUnfolderBase]: 1309/2238 cut-off events. [2024-01-27 16:16:56,552 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-01-27 16:16:56,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4508 conditions, 2238 events. 1309/2238 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 11780 event pairs, 1309 based on Foata normal form. 1/2103 useless extension candidates. Maximal degree in co-relation 3611. Up to 2119 conditions per place. [2024-01-27 16:16:56,564 INFO L140 encePairwiseOnDemand]: 60/63 looper letters, 39 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-01-27 16:16:56,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 54 transitions, 210 flow [2024-01-27 16:16:56,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 16:16:56,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 16:16:56,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-01-27 16:16:56,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46825396825396826 [2024-01-27 16:16:56,573 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 118 flow. Second operand 4 states and 118 transitions. [2024-01-27 16:16:56,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 54 transitions, 210 flow [2024-01-27 16:16:56,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 54 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 16:16:56,576 INFO L231 Difference]: Finished difference. Result has 57 places, 52 transitions, 119 flow [2024-01-27 16:16:56,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=57, PETRI_TRANSITIONS=52} [2024-01-27 16:16:56,577 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -1 predicate places. [2024-01-27 16:16:56,577 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 119 flow [2024-01-27 16:16:56,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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) [2024-01-27 16:16:56,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:16:56,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 16:16:56,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 16:16:56,581 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 16:16:56,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:16:56,582 INFO L85 PathProgramCache]: Analyzing trace with hash 592635647, now seen corresponding path program 1 times [2024-01-27 16:16:56,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:16:56,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183892976] [2024-01-27 16:16:56,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:16:56,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:16:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:16:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:16:56,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:16:56,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183892976] [2024-01-27 16:16:56,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183892976] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:16:56,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:16:56,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 16:16:56,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219791188] [2024-01-27 16:16:56,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:16:56,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 16:16:56,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:16:56,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 16:16:56,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 16:16:56,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 63 [2024-01-27 16:16:56,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 52 transitions, 119 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) [2024-01-27 16:16:56,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:16:56,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 63 [2024-01-27 16:16:56,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:16:57,013 INFO L124 PetriNetUnfolderBase]: 1781/3069 cut-off events. [2024-01-27 16:16:57,013 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2024-01-27 16:16:57,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6153 conditions, 3069 events. 1781/3069 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 17375 event pairs, 1209 based on Foata normal form. 121/3053 useless extension candidates. Maximal degree in co-relation 6134. Up to 2067 conditions per place. [2024-01-27 16:16:57,024 INFO L140 encePairwiseOnDemand]: 52/63 looper letters, 62 selfloop transitions, 8 changer transitions 5/82 dead transitions. [2024-01-27 16:16:57,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 82 transitions, 329 flow [2024-01-27 16:16:57,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 16:16:57,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 16:16:57,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2024-01-27 16:16:57,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2024-01-27 16:16:57,029 INFO L175 Difference]: Start difference. First operand has 57 places, 52 transitions, 119 flow. Second operand 4 states and 120 transitions. [2024-01-27 16:16:57,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 82 transitions, 329 flow [2024-01-27 16:16:57,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 82 transitions, 328 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 16:16:57,032 INFO L231 Difference]: Finished difference. Result has 61 places, 52 transitions, 152 flow [2024-01-27 16:16:57,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=61, PETRI_TRANSITIONS=52} [2024-01-27 16:16:57,033 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 3 predicate places. [2024-01-27 16:16:57,033 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 52 transitions, 152 flow [2024-01-27 16:16:57,033 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) [2024-01-27 16:16:57,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:16:57,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 16:16:57,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 16:16:57,034 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 16:16:57,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:16:57,035 INFO L85 PathProgramCache]: Analyzing trace with hash -959838614, now seen corresponding path program 1 times [2024-01-27 16:16:57,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:16:57,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414378289] [2024-01-27 16:16:57,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:16:57,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:16:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:16:57,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:16:57,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:16:57,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414378289] [2024-01-27 16:16:57,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414378289] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:16:57,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:16:57,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 16:16:57,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540354471] [2024-01-27 16:16:57,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:16:57,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 16:16:57,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:16:57,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 16:16:57,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 16:16:57,204 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 63 [2024-01-27 16:16:57,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 52 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-01-27 16:16:57,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:16:57,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 63 [2024-01-27 16:16:57,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:16:57,471 INFO L124 PetriNetUnfolderBase]: 1768/3133 cut-off events. [2024-01-27 16:16:57,471 INFO L125 PetriNetUnfolderBase]: For 780/780 co-relation queries the response was YES. [2024-01-27 16:16:57,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7065 conditions, 3133 events. 1768/3133 cut-off events. For 780/780 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 18794 event pairs, 931 based on Foata normal form. 0/2949 useless extension candidates. Maximal degree in co-relation 5976. Up to 2102 conditions per place. [2024-01-27 16:16:57,485 INFO L140 encePairwiseOnDemand]: 55/63 looper letters, 55 selfloop transitions, 7 changer transitions 0/74 dead transitions. [2024-01-27 16:16:57,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 74 transitions, 330 flow [2024-01-27 16:16:57,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 16:16:57,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 16:16:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-01-27 16:16:57,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6137566137566137 [2024-01-27 16:16:57,486 INFO L175 Difference]: Start difference. First operand has 61 places, 52 transitions, 152 flow. Second operand 3 states and 116 transitions. [2024-01-27 16:16:57,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 74 transitions, 330 flow [2024-01-27 16:16:57,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 74 transitions, 313 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-01-27 16:16:57,490 INFO L231 Difference]: Finished difference. Result has 58 places, 58 transitions, 197 flow [2024-01-27 16:16:57,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=197, PETRI_PLACES=58, PETRI_TRANSITIONS=58} [2024-01-27 16:16:57,491 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 0 predicate places. [2024-01-27 16:16:57,491 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 58 transitions, 197 flow [2024-01-27 16:16:57,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-01-27 16:16:57,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:16:57,492 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 16:16:57,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 16:16:57,492 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 16:16:57,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:16:57,493 INFO L85 PathProgramCache]: Analyzing trace with hash 309774509, now seen corresponding path program 1 times [2024-01-27 16:16:57,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:16:57,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473486671] [2024-01-27 16:16:57,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:16:57,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:16:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:16:57,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:16:57,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:16:57,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473486671] [2024-01-27 16:16:57,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473486671] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:16:57,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:16:57,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 16:16:57,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691046204] [2024-01-27 16:16:57,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:16:57,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 16:16:57,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:16:57,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 16:16:57,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 16:16:57,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 63 [2024-01-27 16:16:57,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 58 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-01-27 16:16:57,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:16:57,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 63 [2024-01-27 16:16:57,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:16:57,871 INFO L124 PetriNetUnfolderBase]: 2086/3734 cut-off events. [2024-01-27 16:16:57,872 INFO L125 PetriNetUnfolderBase]: For 2194/2194 co-relation queries the response was YES. [2024-01-27 16:16:57,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9363 conditions, 3734 events. 2086/3734 cut-off events. For 2194/2194 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 23292 event pairs, 1181 based on Foata normal form. 0/3613 useless extension candidates. Maximal degree in co-relation 3011. Up to 2485 conditions per place. [2024-01-27 16:16:57,889 INFO L140 encePairwiseOnDemand]: 55/63 looper letters, 59 selfloop transitions, 12 changer transitions 0/83 dead transitions. [2024-01-27 16:16:57,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 83 transitions, 439 flow [2024-01-27 16:16:57,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 16:16:57,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 16:16:57,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-01-27 16:16:57,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6084656084656085 [2024-01-27 16:16:57,891 INFO L175 Difference]: Start difference. First operand has 58 places, 58 transitions, 197 flow. Second operand 3 states and 115 transitions. [2024-01-27 16:16:57,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 83 transitions, 439 flow [2024-01-27 16:16:57,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 83 transitions, 399 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-01-27 16:16:57,896 INFO L231 Difference]: Finished difference. Result has 60 places, 68 transitions, 291 flow [2024-01-27 16:16:57,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=291, PETRI_PLACES=60, PETRI_TRANSITIONS=68} [2024-01-27 16:16:57,897 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 2 predicate places. [2024-01-27 16:16:57,897 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 68 transitions, 291 flow [2024-01-27 16:16:57,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-01-27 16:16:57,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:16:57,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 16:16:57,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 16:16:57,898 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 16:16:57,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:16:57,898 INFO L85 PathProgramCache]: Analyzing trace with hash 2110220666, now seen corresponding path program 1 times [2024-01-27 16:16:57,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:16:57,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394310377] [2024-01-27 16:16:57,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:16:57,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:16:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:16:57,922 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 16:16:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:16:57,953 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 16:16:57,954 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 16:16:57,954 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2024-01-27 16:16:57,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-01-27 16:16:57,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-01-27 16:16:57,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-01-27 16:16:57,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-01-27 16:16:57,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-01-27 16:16:57,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-01-27 16:16:57,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-01-27 16:16:57,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 16:16:57,957 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-27 16:16:57,961 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 16:16:57,961 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 16:16:57,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 04:16:57 BasicIcfg [2024-01-27 16:16:57,999 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 16:16:58,000 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-01-27 16:16:58,000 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-01-27 16:16:58,000 INFO L274 PluginConnector]: Witness Printer initialized [2024-01-27 16:16:58,001 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 04:16:54" (3/4) ... [2024-01-27 16:16:58,001 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2024-01-27 16:16:58,062 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-01-27 16:16:58,062 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-01-27 16:16:58,062 INFO L158 Benchmark]: Toolchain (without parser) took 4339.36ms. Allocated memory was 186.6MB in the beginning and 331.4MB in the end (delta: 144.7MB). Free memory was 113.6MB in the beginning and 111.5MB in the end (delta: 2.2MB). Peak memory consumption was 148.9MB. Max. memory is 16.1GB. [2024-01-27 16:16:58,063 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 104.9MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 16:16:58,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.50ms. Allocated memory is still 186.6MB. Free memory was 113.5MB in the beginning and 131.4MB in the end (delta: -17.9MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-01-27 16:16:58,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.14ms. Allocated memory is still 186.6MB. Free memory was 131.4MB in the beginning and 128.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 16:16:58,063 INFO L158 Benchmark]: Boogie Preprocessor took 102.36ms. Allocated memory is still 186.6MB. Free memory was 128.5MB in the beginning and 124.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 16:16:58,064 INFO L158 Benchmark]: RCFGBuilder took 687.54ms. Allocated memory is still 186.6MB. Free memory was 124.3MB in the beginning and 146.5MB in the end (delta: -22.2MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2024-01-27 16:16:58,064 INFO L158 Benchmark]: TraceAbstraction took 3008.15ms. Allocated memory was 186.6MB in the beginning and 331.4MB in the end (delta: 144.7MB). Free memory was 145.6MB in the beginning and 115.7MB in the end (delta: 29.9MB). Peak memory consumption was 175.4MB. Max. memory is 16.1GB. [2024-01-27 16:16:58,064 INFO L158 Benchmark]: Witness Printer took 62.20ms. Allocated memory is still 331.4MB. Free memory was 115.7MB in the beginning and 111.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 16:16:58,065 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 104.9MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.50ms. Allocated memory is still 186.6MB. Free memory was 113.5MB in the beginning and 131.4MB in the end (delta: -17.9MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.14ms. Allocated memory is still 186.6MB. Free memory was 131.4MB in the beginning and 128.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.36ms. Allocated memory is still 186.6MB. Free memory was 128.5MB in the beginning and 124.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 687.54ms. Allocated memory is still 186.6MB. Free memory was 124.3MB in the beginning and 146.5MB in the end (delta: -22.2MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3008.15ms. Allocated memory was 186.6MB in the beginning and 331.4MB in the end (delta: 144.7MB). Free memory was 145.6MB in the beginning and 115.7MB in the end (delta: 29.9MB). Peak memory consumption was 175.4MB. Max. memory is 16.1GB. * Witness Printer took 62.20ms. Allocated memory is still 331.4MB. Free memory was 115.7MB in the beginning and 111.5MB 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; [L3888] 0 pthread_t t1,t2; [L3888] 0 pthread_t t1,t2; [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 [arg={6:24}, d={6:24}, data={6:0}, data={6:0}, res=0, t1={3:0}, t2={4:0}] [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 { 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 [arg={6:24}, arg={6:24}, d={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, res=0, t1={3:0}, t2={4:0}] [L3931] 0 return 0; VAL [\result=0, arg={6:24}, arg={6:24}, d={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, res=0, t1={3:0}, t2={4:0}] [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 [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}] [L3940] 0 data->shared.a = 3 VAL [arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={3:0}, t2={4:0}] [L3907] 1 data->shared.a = 1 VAL [arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={3:0}, t2={4:0}] [L3943] 0 data->shared.b = 3 VAL [arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={3:0}, t2={4:0}] [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(expression)=0, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, expression=0, t1={3:0}, t2={4:0}] - 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, 68 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: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 539 IncrementalHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 20 mSDtfsCounter, 539 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.6s 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! [2024-01-27 16:16:58,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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