./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.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_83-list2_racing1.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 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 16:18:39,795 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 16:18:39,901 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 16:18:39,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 16:18:39,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 16:18:39,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 16:18:39,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 16:18:39,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 16:18:39,950 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 16:18:39,954 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 16:18:39,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 16:18:39,955 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 16:18:39,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 16:18:39,957 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 16:18:39,958 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 16:18:39,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 16:18:39,958 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 16:18:39,959 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 16:18:39,959 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 16:18:39,959 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 16:18:39,961 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 16:18:39,961 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 16:18:39,961 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 16:18:39,962 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 16:18:39,962 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 16:18:39,962 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 16:18:39,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 16:18:39,963 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 16:18:39,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 16:18:39,964 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 16:18:39,965 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 16:18:39,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 16:18:39,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 16:18:39,966 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 16:18:39,966 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 16:18:39,966 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 16:18:39,967 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 16:18:39,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 16:18:39,967 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 16:18:39,968 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 16:18:39,968 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 16:18:39,968 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 16:18:39,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 16:18:39,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2024-01-27 16:18:40,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 16:18:40,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 16:18:40,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 16:18:40,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 16:18:40,306 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 16:18:40,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i [2024-01-27 16:18:41,577 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 16:18:41,940 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 16:18:41,942 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i [2024-01-27 16:18:41,967 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ee3ad0ce/d17cdea14ae14c01a5fdb513a6580699/FLAG6b3f511a2 [2024-01-27 16:18:41,985 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ee3ad0ce/d17cdea14ae14c01a5fdb513a6580699 [2024-01-27 16:18:41,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 16:18:41,989 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-01-27 16:18:41,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 16:18:41,994 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 16:18:41,998 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 16:18:41,999 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 04:18:41" (1/1) ... [2024-01-27 16:18:42,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@452102c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42, skipping insertion in model container [2024-01-27 16:18:42,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 04:18:41" (1/1) ... [2024-01-27 16:18:42,058 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 16:18:42,512 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_83-list2_racing1.i[47038,47051] [2024-01-27 16:18:42,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 16:18:42,569 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 16:18:42,602 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_83-list2_racing1.i[47038,47051] [2024-01-27 16:18:42,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 16:18:42,677 INFO L206 MainTranslator]: Completed translation [2024-01-27 16:18:42,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:18:42 WrapperNode [2024-01-27 16:18:42,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 16:18:42,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 16:18:42,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 16:18:42,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 16:18:42,687 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 16:18:42,708 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 16:18:42,755 INFO L138 Inliner]: procedures = 280, calls = 96, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 371 [2024-01-27 16:18:42,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 16:18:42,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 16:18:42,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 16:18:42,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 16:18:42,769 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 16:18:42,769 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 16:18:42,780 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 16:18:42,840 INFO L175 MemorySlicer]: Split 51 memory accesses to 9 slices as follows [2, 5, 2, 5, 5, 2, 5, 23, 2]. 45 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 5, 0, 5, 5, 0, 5, 0, 0]. The 15 writes are split as follows [0, 0, 1, 0, 0, 1, 0, 12, 1]. [2024-01-27 16:18:42,841 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 16:18:42,841 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 16:18:42,858 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 16:18:42,863 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 16:18:42,869 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 16:18:42,872 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 16:18:42,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 16:18:42,882 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 16:18:42,882 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 16:18:42,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 16:18:42,883 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 16:18:42,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 16:18:42,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 16:18:42,917 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 16:18:42,919 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 16:18:42,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 16:18:42,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-01-27 16:18:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-01-27 16:18:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-01-27 16:18:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-01-27 16:18:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-01-27 16:18:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-01-27 16:18:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-01-27 16:18:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-01-27 16:18:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-01-27 16:18:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-01-27 16:18:42,963 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-01-27 16:18:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 16:18:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 16:18:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 16:18:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 16:18:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 16:18:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 16:18:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 16:18:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-27 16:18:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-01-27 16:18:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-01-27 16:18:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-01-27 16:18:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-01-27 16:18:42,966 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-01-27 16:18:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 16:18:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 16:18:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 16:18:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 16:18:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 16:18:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-27 16:18:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-01-27 16:18:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-01-27 16:18:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-01-27 16:18:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 16:18:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-27 16:18:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 16:18:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-01-27 16:18:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-01-27 16:18:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-01-27 16:18:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-01-27 16:18:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-01-27 16:18:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-01-27 16:18:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-01-27 16:18:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-01-27 16:18:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-01-27 16:18:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-01-27 16:18:42,969 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-01-27 16:18:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 16:18:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 16:18:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 16:18:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 16:18:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 16:18:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-27 16:18:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-01-27 16:18:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-01-27 16:18:42,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-01-27 16:18:42,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 16:18:42,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 16:18:42,973 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 16:18:43,185 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 16:18:43,187 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 16:18:43,814 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 16:18:43,814 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 16:18:44,082 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 16:18:44,082 INFO L320 CfgBuilder]: Removed 28 assume(true) statements. [2024-01-27 16:18:44,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 04:18:44 BoogieIcfgContainer [2024-01-27 16:18:44,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 16:18:44,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 16:18:44,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 16:18:44,088 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 16:18:44,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 04:18:41" (1/3) ... [2024-01-27 16:18:44,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2076ab42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 04:18:44, skipping insertion in model container [2024-01-27 16:18:44,090 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 16:18:44,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2076ab42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 04:18:44, skipping insertion in model container [2024-01-27 16:18:44,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 04:18:44" (3/3) ... [2024-01-27 16:18:44,092 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2024-01-27 16:18:44,102 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-27 16:18:44,112 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 16:18:44,112 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-01-27 16:18:44,113 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 16:18:44,250 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-01-27 16:18:44,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 137 transitions, 313 flow [2024-01-27 16:18:44,409 INFO L124 PetriNetUnfolderBase]: 120/454 cut-off events. [2024-01-27 16:18:44,410 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-01-27 16:18:44,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 454 events. 120/454 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2621 event pairs, 0 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 239. Up to 16 conditions per place. [2024-01-27 16:18:44,420 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 137 transitions, 313 flow [2024-01-27 16:18:44,428 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 137 transitions, 313 flow [2024-01-27 16:18:44,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 16:18:44,444 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;@17c53016, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 16:18:44,444 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-01-27 16:18:44,455 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 16:18:44,455 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-01-27 16:18:44,455 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 16:18:44,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:18:44,457 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-01-27 16:18:44,457 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 4 more)] === [2024-01-27 16:18:44,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:18:44,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1121559648, now seen corresponding path program 1 times [2024-01-27 16:18:44,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:18:44,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585414263] [2024-01-27 16:18:44,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:18:44,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:18:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:18:44,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 16:18:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:18:44,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 16:18:44,760 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 16:18:44,762 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-01-27 16:18:44,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-01-27 16:18:44,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-01-27 16:18:44,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-01-27 16:18:44,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-01-27 16:18:44,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-01-27 16:18:44,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-01-27 16:18:44,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 16:18:44,766 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-01-27 16:18:44,773 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-27 16:18:44,773 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-27 16:18:44,897 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-01-27 16:18:44,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 252 transitions, 588 flow [2024-01-27 16:18:45,417 INFO L124 PetriNetUnfolderBase]: 875/2479 cut-off events. [2024-01-27 16:18:45,418 INFO L125 PetriNetUnfolderBase]: For 602/698 co-relation queries the response was YES. [2024-01-27 16:18:45,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3127 conditions, 2479 events. 875/2479 cut-off events. For 602/698 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 19676 event pairs, 22 based on Foata normal form. 0/1810 useless extension candidates. Maximal degree in co-relation 1693. Up to 192 conditions per place. [2024-01-27 16:18:45,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 252 transitions, 588 flow [2024-01-27 16:18:45,533 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 252 transitions, 588 flow [2024-01-27 16:18:45,535 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 16:18:45,537 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;@17c53016, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 16:18:45,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-01-27 16:18:45,547 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 16:18:45,548 INFO L124 PetriNetUnfolderBase]: 2/68 cut-off events. [2024-01-27 16:18:45,548 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-01-27 16:18:45,548 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:18:45,548 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-01-27 16:18:45,549 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 16:18:45,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:18:45,550 INFO L85 PathProgramCache]: Analyzing trace with hash -216811223, now seen corresponding path program 1 times [2024-01-27 16:18:45,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:18:45,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469390934] [2024-01-27 16:18:45,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:18:45,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:18:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:18:45,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 16:18:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:18:45,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 16:18:45,697 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 16:18:45,697 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-01-27 16:18:45,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2024-01-27 16:18:45,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2024-01-27 16:18:45,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2024-01-27 16:18:45,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-01-27 16:18:45,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2024-01-27 16:18:45,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2024-01-27 16:18:45,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2024-01-27 16:18:45,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-01-27 16:18:45,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 16:18:45,700 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-01-27 16:18:45,701 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-27 16:18:45,701 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-01-27 16:18:45,823 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2024-01-27 16:18:45,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 367 transitions, 869 flow [2024-01-27 16:18:50,624 INFO L124 PetriNetUnfolderBase]: 7304/14788 cut-off events. [2024-01-27 16:18:50,625 INFO L125 PetriNetUnfolderBase]: For 7059/7561 co-relation queries the response was YES. [2024-01-27 16:18:51,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21899 conditions, 14788 events. 7304/14788 cut-off events. For 7059/7561 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 123403 event pairs, 1024 based on Foata normal form. 0/12032 useless extension candidates. Maximal degree in co-relation 11039. Up to 2304 conditions per place. [2024-01-27 16:18:51,044 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 367 transitions, 869 flow [2024-01-27 16:18:51,504 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 367 transitions, 869 flow [2024-01-27 16:18:51,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 16:18:51,507 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;@17c53016, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 16:18:51,507 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-01-27 16:18:51,524 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 16:18:51,524 INFO L124 PetriNetUnfolderBase]: 8/166 cut-off events. [2024-01-27 16:18:51,524 INFO L125 PetriNetUnfolderBase]: For 25/27 co-relation queries the response was YES. [2024-01-27 16:18:51,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:18:51,525 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-01-27 16:18:51,525 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 8 more)] === [2024-01-27 16:18:51,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:18:51,526 INFO L85 PathProgramCache]: Analyzing trace with hash -86218433, now seen corresponding path program 1 times [2024-01-27 16:18:51,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:18:51,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471386496] [2024-01-27 16:18:51,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:18:51,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:18:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:18:51,596 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 16:18:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:18:51,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 16:18:51,646 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 16:18:51,646 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-01-27 16:18:51,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2024-01-27 16:18:51,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2024-01-27 16:18:51,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2024-01-27 16:18:51,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2024-01-27 16:18:51,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2024-01-27 16:18:51,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2024-01-27 16:18:51,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2024-01-27 16:18:51,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2024-01-27 16:18:51,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2024-01-27 16:18:51,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2024-01-27 16:18:51,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 16:18:51,649 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-01-27 16:18:51,650 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-27 16:18:51,650 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-01-27 16:18:51,794 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2024-01-27 16:18:51,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 482 transitions, 1156 flow [2024-01-27 16:19:35,256 INFO L124 PetriNetUnfolderBase]: 71437/117079 cut-off events. [2024-01-27 16:19:35,256 INFO L125 PetriNetUnfolderBase]: For 74224/75877 co-relation queries the response was YES. [2024-01-27 16:19:40,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191254 conditions, 117079 events. 71437/117079 cut-off events. For 74224/75877 co-relation queries the response was YES. Maximal size of possible extension queue 2933. Compared 995244 event pairs, 13601 based on Foata normal form. 0/102281 useless extension candidates. Maximal degree in co-relation 91552. Up to 24576 conditions per place. [2024-01-27 16:19:40,972 INFO L82 GeneralOperation]: Start removeDead. Operand has 359 places, 482 transitions, 1156 flow [2024-01-27 16:19:45,340 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 482 transitions, 1156 flow [2024-01-27 16:19:45,341 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 16:19:45,342 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;@17c53016, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 16:19:45,342 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-01-27 16:19:45,371 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 16:19:45,371 INFO L124 PetriNetUnfolderBase]: 23/350 cut-off events. [2024-01-27 16:19:45,372 INFO L125 PetriNetUnfolderBase]: For 77/80 co-relation queries the response was YES. [2024-01-27 16:19:45,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:19:45,372 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2024-01-27 16:19:45,372 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 16:19:45,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:19:45,373 INFO L85 PathProgramCache]: Analyzing trace with hash 293653503, now seen corresponding path program 1 times [2024-01-27 16:19:45,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:19:45,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837380906] [2024-01-27 16:19:45,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:19:45,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:19:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:19:45,429 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 16:19:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 16:19:45,470 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 16:19:45,475 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 16:19:45,475 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-01-27 16:19:45,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 13 remaining) [2024-01-27 16:19:45,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 13 remaining) [2024-01-27 16:19:45,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 13 remaining) [2024-01-27 16:19:45,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-01-27 16:19:45,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 13 remaining) [2024-01-27 16:19:45,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 13 remaining) [2024-01-27 16:19:45,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 13 remaining) [2024-01-27 16:19:45,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 13 remaining) [2024-01-27 16:19:45,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 13 remaining) [2024-01-27 16:19:45,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 13 remaining) [2024-01-27 16:19:45,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 13 remaining) [2024-01-27 16:19:45,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 13 remaining) [2024-01-27 16:19:45,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 16:19:45,480 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-01-27 16:19:45,481 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-27 16:19:45,481 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-01-27 16:19:45,648 INFO L144 ThreadInstanceAdder]: Constructed 45 joinOtherThreadTransitions. [2024-01-27 16:19:45,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 443 places, 597 transitions, 1449 flow