./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.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/goblint-regression/28-race_reach_84-list2_racing2.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 f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 16:18:39,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 16:18:39,635 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 16:18:39,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 16:18:39,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 16:18:39,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 16:18:39,671 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 16:18:39,672 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 16:18:39,673 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 16:18:39,676 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 16:18:39,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 16:18:39,677 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 16:18:39,678 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 16:18:39,679 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 16:18:39,680 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 16:18:39,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 16:18:39,680 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 16:18:39,681 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 16:18:39,681 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 16:18:39,681 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 16:18:39,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 16:18:39,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 16:18:39,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 16:18:39,682 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 16:18:39,683 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 16:18:39,683 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 16:18:39,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 16:18:39,683 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 16:18:39,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 16:18:39,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 16:18:39,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 16:18:39,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 16:18:39,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 16:18:39,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 16:18:39,685 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 16:18:39,685 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 16:18:39,686 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 16:18:39,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 16:18:39,686 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 16:18:39,686 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 16:18:39,686 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 16:18:39,687 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 16:18:39,687 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 16:18:39,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2024-01-27 16:18:39,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 16:18:39,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 16:18:39,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 16:18:39,986 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 16:18:39,986 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 16:18:39,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i [2024-01-27 16:18:41,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 16:18:41,418 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 16:18:41,420 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i [2024-01-27 16:18:41,441 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a653cceb/b8f5116a550d4b0bab0b51359bc3e937/FLAG59984e8dc [2024-01-27 16:18:41,454 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a653cceb/b8f5116a550d4b0bab0b51359bc3e937 [2024-01-27 16:18:41,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 16:18:41,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-01-27 16:18:41,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 16:18:41,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 16:18:41,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 16:18:41,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 04:18:41" (1/1) ... [2024-01-27 16:18:41,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e3b267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:41, skipping insertion in model container [2024-01-27 16:18:41,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 04:18:41" (1/1) ... [2024-01-27 16:18:41,513 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 16:18:41,930 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2024-01-27 16:18:41,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 16:18:42,013 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 16:18:42,054 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2024-01-27 16:18:42,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 16:18:42,143 INFO L206 MainTranslator]: Completed translation [2024-01-27 16:18:42,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42 WrapperNode [2024-01-27 16:18:42,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 16:18:42,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 16:18:42,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 16:18:42,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 16:18:42,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42" (1/1) ... [2024-01-27 16:18:42,185 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42" (1/1) ... [2024-01-27 16:18:42,237 INFO L138 Inliner]: procedures = 280, calls = 98, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 416 [2024-01-27 16:18:42,240 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 16:18:42,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 16:18:42,241 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 16:18:42,241 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 16:18:42,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42" (1/1) ... [2024-01-27 16:18:42,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42" (1/1) ... [2024-01-27 16:18:42,267 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42" (1/1) ... [2024-01-27 16:18:42,308 INFO L175 MemorySlicer]: Split 56 memory accesses to 9 slices as follows [2, 5, 2, 5, 2, 5, 5, 28, 2]. 50 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 5, 0, 5, 0, 5, 5, 0, 0]. The 17 writes are split as follows [0, 0, 1, 0, 1, 0, 0, 14, 1]. [2024-01-27 16:18:42,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42" (1/1) ... [2024-01-27 16:18:42,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42" (1/1) ... [2024-01-27 16:18:42,321 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42" (1/1) ... [2024-01-27 16:18:42,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42" (1/1) ... [2024-01-27 16:18:42,329 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42" (1/1) ... [2024-01-27 16:18:42,331 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42" (1/1) ... [2024-01-27 16:18:42,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 16:18:42,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 16:18:42,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 16:18:42,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 16:18:42,352 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42" (1/1) ... [2024-01-27 16:18:42,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 16:18:42,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 16:18:42,410 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 16:18:42,437 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 16:18:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 16:18:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-01-27 16:18:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-01-27 16:18:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-01-27 16:18:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-01-27 16:18:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-01-27 16:18:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-01-27 16:18:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-01-27 16:18:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-01-27 16:18:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-01-27 16:18:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-01-27 16:18:42,473 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-01-27 16:18:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 16:18:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 16:18:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 16:18:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 16:18:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 16:18:42,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 16:18:42,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 16:18:42,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-27 16:18:42,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-01-27 16:18:42,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-01-27 16:18:42,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-01-27 16:18:42,475 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-01-27 16:18:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-01-27 16:18:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 16:18:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 16:18:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 16:18:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 16:18:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 16:18:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-27 16:18:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-01-27 16:18:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-01-27 16:18:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-01-27 16:18:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 16:18:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-27 16:18:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 16:18:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-01-27 16:18:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-01-27 16:18:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-01-27 16:18:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-01-27 16:18:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-01-27 16:18:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-01-27 16:18:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-01-27 16:18:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-01-27 16:18:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-01-27 16:18:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-01-27 16:18:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-01-27 16:18:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 16:18:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 16:18:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 16:18:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 16:18:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 16:18:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-27 16:18:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-01-27 16:18:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-01-27 16:18:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-01-27 16:18:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 16:18:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 16:18:42,484 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 16:18:42,806 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 16:18:42,808 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 16:18:43,297 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 16:18:43,298 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 16:18:43,650 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 16:18:43,650 INFO L320 CfgBuilder]: Removed 29 assume(true) statements. [2024-01-27 16:18:43,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 04:18:43 BoogieIcfgContainer [2024-01-27 16:18:43,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 16:18:43,653 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 16:18:43,653 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 16:18:43,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 16:18:43,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 04:18:41" (1/3) ... [2024-01-27 16:18:43,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73322dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 04:18:43, skipping insertion in model container [2024-01-27 16:18:43,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42" (2/3) ... [2024-01-27 16:18:43,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73322dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 04:18:43, skipping insertion in model container [2024-01-27 16:18:43,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 04:18:43" (3/3) ... [2024-01-27 16:18:43,659 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2024-01-27 16:18:43,667 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-27 16:18:43,676 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 16:18:43,676 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-01-27 16:18:43,676 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 16:18:43,775 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-01-27 16:18:43,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 149 transitions, 337 flow [2024-01-27 16:18:43,929 INFO L124 PetriNetUnfolderBase]: 136/550 cut-off events. [2024-01-27 16:18:43,929 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-01-27 16:18:43,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 550 events. 136/550 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3349 event pairs, 0 based on Foata normal form. 0/406 useless extension candidates. Maximal degree in co-relation 287. Up to 16 conditions per place. [2024-01-27 16:18:43,944 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 149 transitions, 337 flow [2024-01-27 16:18:43,951 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 149 transitions, 337 flow [2024-01-27 16:18:43,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 16:18:43,964 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;@2e5bff36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 16:18:43,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-01-27 16:18:43,971 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 16:18:43,971 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-01-27 16:18:43,971 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 16:18:43,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:18:43,972 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-01-27 16:18:43,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-01-27 16:18:43,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:18:43,977 INFO L85 PathProgramCache]: Analyzing trace with hash 200421028, now seen corresponding path program 1 times [2024-01-27 16:18:43,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:18:43,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390891254] [2024-01-27 16:18:43,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:18:43,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:18:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:18:44,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 16:18:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:18:44,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 16:18:44,300 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 16:18:44,301 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-01-27 16:18:44,302 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-01-27 16:18:44,303 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-01-27 16:18:44,303 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-01-27 16:18:44,303 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-01-27 16:18:44,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-01-27 16:18:44,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-01-27 16:18:44,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 16:18:44,305 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-01-27 16:18:44,311 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-27 16:18:44,312 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-27 16:18:44,471 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-01-27 16:18:44,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 201 places, 264 transitions, 612 flow [2024-01-27 16:18:45,104 INFO L124 PetriNetUnfolderBase]: 929/2803 cut-off events. [2024-01-27 16:18:45,105 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2024-01-27 16:18:45,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3451 conditions, 2803 events. 929/2803 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 22379 event pairs, 22 based on Foata normal form. 0/2158 useless extension candidates. Maximal degree in co-relation 1909. Up to 192 conditions per place. [2024-01-27 16:18:45,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 264 transitions, 612 flow [2024-01-27 16:18:45,187 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 201 places, 264 transitions, 612 flow [2024-01-27 16:18:45,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 16:18:45,191 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;@2e5bff36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 16:18:45,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-01-27 16:18:45,201 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 16:18:45,202 INFO L124 PetriNetUnfolderBase]: 4/66 cut-off events. [2024-01-27 16:18:45,202 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-27 16:18:45,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:18:45,203 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-01-27 16:18:45,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-01-27 16:18:45,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:18:45,204 INFO L85 PathProgramCache]: Analyzing trace with hash 328113107, now seen corresponding path program 1 times [2024-01-27 16:18:45,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:18:45,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035627172] [2024-01-27 16:18:45,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:18:45,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:18:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:18:45,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 16:18:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:18:45,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 16:18:45,323 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 16:18:45,323 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-01-27 16:18:45,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2024-01-27 16:18:45,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2024-01-27 16:18:45,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2024-01-27 16:18:45,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-01-27 16:18:45,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2024-01-27 16:18:45,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2024-01-27 16:18:45,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2024-01-27 16:18:45,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-01-27 16:18:45,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 16:18:45,325 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-01-27 16:18:45,326 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-27 16:18:45,326 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-01-27 16:18:45,467 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2024-01-27 16:18:45,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 379 transitions, 893 flow [2024-01-27 16:18:50,677 INFO L124 PetriNetUnfolderBase]: 7432/15556 cut-off events. [2024-01-27 16:18:50,678 INFO L125 PetriNetUnfolderBase]: For 7059/7059 co-relation queries the response was YES. [2024-01-27 16:18:51,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22667 conditions, 15556 events. 7432/15556 cut-off events. For 7059/7059 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 129973 event pairs, 912 based on Foata normal form. 0/12908 useless extension candidates. Maximal degree in co-relation 11615. Up to 2304 conditions per place. [2024-01-27 16:18:51,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 285 places, 379 transitions, 893 flow [2024-01-27 16:18:51,582 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 379 transitions, 893 flow [2024-01-27 16:18:51,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 16:18:51,585 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;@2e5bff36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 16:18:51,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-01-27 16:18:51,616 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 16:18:51,616 INFO L124 PetriNetUnfolderBase]: 16/167 cut-off events. [2024-01-27 16:18:51,616 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-01-27 16:18:51,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:18:51,617 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-01-27 16:18:51,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-01-27 16:18:51,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:18:51,618 INFO L85 PathProgramCache]: Analyzing trace with hash -480121021, now seen corresponding path program 1 times [2024-01-27 16:18:51,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:18:51,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242898934] [2024-01-27 16:18:51,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:18:51,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:18:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:18:51,697 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 16:18:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:18:51,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 16:18:51,740 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 16:18:51,740 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-01-27 16:18:51,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2024-01-27 16:18:51,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2024-01-27 16:18:51,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2024-01-27 16:18:51,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2024-01-27 16:18:51,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2024-01-27 16:18:51,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2024-01-27 16:18:51,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2024-01-27 16:18:51,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2024-01-27 16:18:51,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2024-01-27 16:18:51,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2024-01-27 16:18:51,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 16:18:51,747 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-01-27 16:18:51,748 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-27 16:18:51,749 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-01-27 16:18:51,909 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2024-01-27 16:18:51,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 494 transitions, 1180 flow [2024-01-27 16:19:34,758 INFO L124 PetriNetUnfolderBase]: 71687/118579 cut-off events. [2024-01-27 16:19:34,761 INFO L125 PetriNetUnfolderBase]: For 74224/74224 co-relation queries the response was YES. [2024-01-27 16:19:40,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192754 conditions, 118579 events. 71687/118579 cut-off events. For 74224/74224 co-relation queries the response was YES. Maximal size of possible extension queue 2934. Compared 1004964 event pairs, 12109 based on Foata normal form. 0/104086 useless extension candidates. Maximal degree in co-relation 92752. Up to 24576 conditions per place. [2024-01-27 16:19:40,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 369 places, 494 transitions, 1180 flow [2024-01-27 16:19:44,288 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 494 transitions, 1180 flow [2024-01-27 16:19:44,289 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 16:19:44,290 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;@2e5bff36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 16:19:44,290 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-01-27 16:19:44,319 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 16:19:44,319 INFO L124 PetriNetUnfolderBase]: 41/362 cut-off events. [2024-01-27 16:19:44,319 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-01-27 16:19:44,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:19:44,320 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2024-01-27 16:19:44,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-01-27 16:19:44,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:19:44,320 INFO L85 PathProgramCache]: Analyzing trace with hash 47227777, now seen corresponding path program 1 times [2024-01-27 16:19:44,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:19:44,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314762936] [2024-01-27 16:19:44,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:19:44,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:19:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:19:44,361 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 16:19:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:19:44,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 16:19:44,401 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 16:19:44,402 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-01-27 16:19:44,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 13 remaining) [2024-01-27 16:19:44,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 13 remaining) [2024-01-27 16:19:44,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 13 remaining) [2024-01-27 16:19:44,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-01-27 16:19:44,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 13 remaining) [2024-01-27 16:19:44,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 13 remaining) [2024-01-27 16:19:44,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 13 remaining) [2024-01-27 16:19:44,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 13 remaining) [2024-01-27 16:19:44,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 13 remaining) [2024-01-27 16:19:44,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 13 remaining) [2024-01-27 16:19:44,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 13 remaining) [2024-01-27 16:19:44,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 13 remaining) [2024-01-27 16:19:44,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 16:19:44,408 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-01-27 16:19:44,409 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-27 16:19:44,409 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-01-27 16:19:44,588 INFO L144 ThreadInstanceAdder]: Constructed 45 joinOtherThreadTransitions. [2024-01-27 16:19:44,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 453 places, 609 transitions, 1473 flow