./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.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 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:21:41,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:21:41,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:21:41,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:21:41,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:21:41,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:21:41,887 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:21:41,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:21:41,888 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:21:41,888 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:21:41,889 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:21:41,889 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:21:41,890 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:21:41,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:21:41,892 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:21:41,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:21:41,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:21:41,893 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:21:41,893 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:21:41,894 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:21:41,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:21:41,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:21:41,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:21:41,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:21:41,899 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:21:41,899 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:21:41,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:21:41,899 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:21:41,900 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:21:41,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:21:41,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:21:41,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:21:41,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:21:41,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:21:41,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:21:41,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:21:41,902 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:21:41,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:21:41,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:21:41,904 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:21:41,904 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:21:41,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:21:41,904 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 [2024-11-16 19:21:42,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:21:42,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:21:42,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:21:42,220 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:21:42,221 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:21:42,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2024-11-16 19:21:43,650 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:21:43,937 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:21:43,938 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2024-11-16 19:21:43,956 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d440cf24e/e1594a3457944fa9b780ff3f6096fa60/FLAG9517a1d5d [2024-11-16 19:21:43,986 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d440cf24e/e1594a3457944fa9b780ff3f6096fa60 [2024-11-16 19:21:43,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:21:43,992 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:21:43,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:21:43,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:21:44,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:21:44,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:21:43" (1/1) ... [2024-11-16 19:21:44,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ad463e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44, skipping insertion in model container [2024-11-16 19:21:44,003 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:21:43" (1/1) ... [2024-11-16 19:21:44,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:21:44,456 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i[47038,47051] [2024-11-16 19:21:44,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:21:44,529 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:21:44,578 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i[47038,47051] [2024-11-16 19:21:44,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:21:44,658 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:21:44,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44 WrapperNode [2024-11-16 19:21:44,659 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:21:44,660 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:21:44,660 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:21:44,660 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:21:44,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44" (1/1) ... [2024-11-16 19:21:44,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44" (1/1) ... [2024-11-16 19:21:44,719 INFO L138 Inliner]: procedures = 279, calls = 67, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 212 [2024-11-16 19:21:44,720 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:21:44,721 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:21:44,721 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:21:44,721 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:21:44,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44" (1/1) ... [2024-11-16 19:21:44,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44" (1/1) ... [2024-11-16 19:21:44,736 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44" (1/1) ... [2024-11-16 19:21:44,764 INFO L175 MemorySlicer]: Split 35 memory accesses to 7 slices as follows [2, 5, 5, 5, 2, 14, 2]. 40 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0, 0, 0]. The 10 writes are split as follows [0, 0, 0, 0, 1, 8, 1]. [2024-11-16 19:21:44,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44" (1/1) ... [2024-11-16 19:21:44,765 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44" (1/1) ... [2024-11-16 19:21:44,776 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44" (1/1) ... [2024-11-16 19:21:44,777 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44" (1/1) ... [2024-11-16 19:21:44,779 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44" (1/1) ... [2024-11-16 19:21:44,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44" (1/1) ... [2024-11-16 19:21:44,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:21:44,787 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:21:44,787 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:21:44,787 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:21:44,788 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44" (1/1) ... [2024-11-16 19:21:44,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:21:44,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:21:44,829 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) [2024-11-16 19:21:44,832 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 [2024-11-16 19:21:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:21:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:21:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:21:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:21:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:21:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:21:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 19:21:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-16 19:21:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-16 19:21:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-16 19:21:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:21:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 19:21:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:21:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:21:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:21:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:21:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:21:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:21:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 19:21:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-16 19:21:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-16 19:21:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:21:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:21:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:21:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:21:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:21:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:21:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 19:21:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 19:21:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:21:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:21:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:21:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:21:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:21:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:21:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:21:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 19:21:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-16 19:21:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:21:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:21:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:21:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:21:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:21:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:21:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 19:21:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:21:44,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:21:44,921 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:21:45,168 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:21:45,170 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:21:45,504 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1044: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2024-11-16 19:21:45,505 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1044-1: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2024-11-16 19:21:45,505 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1045: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2024-11-16 19:21:45,505 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1045-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2024-11-16 19:21:45,507 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:21:45,507 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:21:45,710 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:21:45,710 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:21:45,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:21:45 BoogieIcfgContainer [2024-11-16 19:21:45,711 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:21:45,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:21:45,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:21:45,717 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:21:45,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:21:43" (1/3) ... [2024-11-16 19:21:45,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ccf89b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:21:45, skipping insertion in model container [2024-11-16 19:21:45,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:44" (2/3) ... [2024-11-16 19:21:45,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ccf89b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:21:45, skipping insertion in model container [2024-11-16 19:21:45,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:21:45" (3/3) ... [2024-11-16 19:21:45,721 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_82-list_racefree.i [2024-11-16 19:21:45,739 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:21:45,739 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:21:45,739 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:21:45,814 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-16 19:21:45,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 90 transitions, 200 flow [2024-11-16 19:21:46,016 INFO L124 PetriNetUnfolderBase]: 50/203 cut-off events. [2024-11-16 19:21:46,018 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-16 19:21:46,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 203 events. 50/203 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 793 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 104. Up to 8 conditions per place. [2024-11-16 19:21:46,064 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 90 transitions, 200 flow [2024-11-16 19:21:46,069 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 88 transitions, 190 flow [2024-11-16 19:21:46,086 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:21:46,092 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b097169, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:21:46,093 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-16 19:21:46,107 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:21:46,109 INFO L124 PetriNetUnfolderBase]: 4/30 cut-off events. [2024-11-16 19:21:46,109 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:21:46,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:21:46,111 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-16 19:21:46,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:21:46,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:21:46,117 INFO L85 PathProgramCache]: Analyzing trace with hash -978329271, now seen corresponding path program 1 times [2024-11-16 19:21:46,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:21:46,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005004955] [2024-11-16 19:21:46,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:21:46,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:21:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:21:46,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 19:21:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:21:46,437 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 19:21:46,444 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 19:21:46,446 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-11-16 19:21:46,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-11-16 19:21:46,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-16 19:21:46,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-11-16 19:21:46,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:21:46,451 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 19:21:46,458 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 19:21:46,459 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 19:21:46,542 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-16 19:21:46,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 153 transitions, 350 flow [2024-11-16 19:21:46,684 INFO L124 PetriNetUnfolderBase]: 185/657 cut-off events. [2024-11-16 19:21:46,684 INFO L125 PetriNetUnfolderBase]: For 72/81 co-relation queries the response was YES. [2024-11-16 19:21:46,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 657 events. 185/657 cut-off events. For 72/81 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3735 event pairs, 1 based on Foata normal form. 0/476 useless extension candidates. Maximal degree in co-relation 422. Up to 32 conditions per place. [2024-11-16 19:21:46,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 153 transitions, 350 flow [2024-11-16 19:21:46,708 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 153 transitions, 350 flow [2024-11-16 19:21:46,712 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:21:46,714 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b097169, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:21:46,715 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-16 19:21:46,726 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:21:46,726 INFO L124 PetriNetUnfolderBase]: 12/79 cut-off events. [2024-11-16 19:21:46,726 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 19:21:46,726 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:21:46,727 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2024-11-16 19:21:46,727 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:21:46,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:21:46,728 INFO L85 PathProgramCache]: Analyzing trace with hash -993860648, now seen corresponding path program 1 times [2024-11-16 19:21:46,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:21:46,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877530477] [2024-11-16 19:21:46,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:21:46,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:21:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:21:46,808 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 19:21:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:21:46,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 19:21:46,881 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 19:21:46,882 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-16 19:21:46,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-16 19:21:46,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-16 19:21:46,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-16 19:21:46,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-16 19:21:46,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:21:46,883 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 19:21:46,884 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 19:21:46,884 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 19:21:47,001 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-16 19:21:47,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 171 places, 216 transitions, 504 flow [2024-11-16 19:21:47,372 INFO L124 PetriNetUnfolderBase]: 652/1925 cut-off events. [2024-11-16 19:21:47,372 INFO L125 PetriNetUnfolderBase]: For 419/467 co-relation queries the response was YES. [2024-11-16 19:21:47,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2361 conditions, 1925 events. 652/1925 cut-off events. For 419/467 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 12996 event pairs, 36 based on Foata normal form. 0/1433 useless extension candidates. Maximal degree in co-relation 1316. Up to 192 conditions per place. [2024-11-16 19:21:47,393 INFO L82 GeneralOperation]: Start removeDead. Operand has 171 places, 216 transitions, 504 flow [2024-11-16 19:21:47,420 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 171 places, 216 transitions, 504 flow [2024-11-16 19:21:47,422 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:21:47,423 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b097169, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:21:47,423 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-16 19:21:47,444 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:21:47,445 INFO L124 PetriNetUnfolderBase]: 25/160 cut-off events. [2024-11-16 19:21:47,445 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-16 19:21:47,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:21:47,446 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1] [2024-11-16 19:21:47,450 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:21:47,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:21:47,450 INFO L85 PathProgramCache]: Analyzing trace with hash 918811228, now seen corresponding path program 1 times [2024-11-16 19:21:47,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:21:47,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791274825] [2024-11-16 19:21:47,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:21:47,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:21:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:21:47,520 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 19:21:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:21:47,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 19:21:47,569 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 19:21:47,569 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-16 19:21:47,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-16 19:21:47,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-16 19:21:47,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-11-16 19:21:47,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-11-16 19:21:47,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-16 19:21:47,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:21:47,571 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 19:21:47,572 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 19:21:47,572 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-16 19:21:47,667 INFO L143 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2024-11-16 19:21:47,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 279 transitions, 662 flow [2024-11-16 19:21:49,374 INFO L124 PetriNetUnfolderBase]: 2639/6383 cut-off events. [2024-11-16 19:21:49,375 INFO L125 PetriNetUnfolderBase]: For 2144/2219 co-relation queries the response was YES. [2024-11-16 19:21:49,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8524 conditions, 6383 events. 2639/6383 cut-off events. For 2144/2219 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 48778 event pairs, 313 based on Foata normal form. 0/4984 useless extension candidates. Maximal degree in co-relation 4405. Up to 1024 conditions per place. [2024-11-16 19:21:49,473 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 279 transitions, 662 flow [2024-11-16 19:21:49,577 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 279 transitions, 662 flow [2024-11-16 19:21:49,579 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:21:49,580 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b097169, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:21:49,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-16 19:21:49,604 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:21:49,605 INFO L124 PetriNetUnfolderBase]: 52/294 cut-off events. [2024-11-16 19:21:49,605 INFO L125 PetriNetUnfolderBase]: For 50/56 co-relation queries the response was YES. [2024-11-16 19:21:49,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:21:49,605 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-16 19:21:49,605 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:21:49,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:21:49,606 INFO L85 PathProgramCache]: Analyzing trace with hash 145474709, now seen corresponding path program 1 times [2024-11-16 19:21:49,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:21:49,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633532657] [2024-11-16 19:21:49,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:21:49,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:21:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:21:49,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 19:21:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:21:49,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 19:21:49,777 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 19:21:49,777 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-16 19:21:49,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-11-16 19:21:49,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-16 19:21:49,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2024-11-16 19:21:49,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2024-11-16 19:21:49,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-11-16 19:21:49,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-11-16 19:21:49,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:21:49,779 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 19:21:49,780 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 19:21:49,780 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-16 19:21:49,904 INFO L143 ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions. [2024-11-16 19:21:49,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 269 places, 342 transitions, 824 flow [2024-11-16 19:21:56,585 INFO L124 PetriNetUnfolderBase]: 11762/24399 cut-off events. [2024-11-16 19:21:56,585 INFO L125 PetriNetUnfolderBase]: For 10450/10576 co-relation queries the response was YES. [2024-11-16 19:21:57,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34790 conditions, 24399 events. 11762/24399 cut-off events. For 10450/10576 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 210844 event pairs, 2148 based on Foata normal form. 0/19745 useless extension candidates. Maximal degree in co-relation 17036. Up to 5120 conditions per place. [2024-11-16 19:21:57,057 INFO L82 GeneralOperation]: Start removeDead. Operand has 269 places, 342 transitions, 824 flow [2024-11-16 19:21:57,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 269 places, 342 transitions, 824 flow [2024-11-16 19:21:57,559 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:21:57,560 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b097169, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:21:57,561 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-16 19:21:57,608 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:21:57,609 INFO L124 PetriNetUnfolderBase]: 74/395 cut-off events. [2024-11-16 19:21:57,609 INFO L125 PetriNetUnfolderBase]: For 89/113 co-relation queries the response was YES. [2024-11-16 19:21:57,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:21:57,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:21:57,610 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-16 19:21:57,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:21:57,610 INFO L85 PathProgramCache]: Analyzing trace with hash -464333114, now seen corresponding path program 1 times [2024-11-16 19:21:57,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:21:57,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900040982] [2024-11-16 19:21:57,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:21:57,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:21:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:21:57,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:21:57,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:21:57,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900040982] [2024-11-16 19:21:57,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900040982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:21:57,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:21:57,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:21:57,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515405529] [2024-11-16 19:21:57,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:21:57,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 19:21:57,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:21:57,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 19:21:57,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 19:21:57,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 342 [2024-11-16 19:21:57,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 342 transitions, 824 flow. Second operand has 2 states, 2 states have (on average 93.5) internal successors, (187), 2 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:21:57,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:21:57,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 342 [2024-11-16 19:21:57,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand