./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_3-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_3-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB --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 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:31:56,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:31:56,389 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:31:56,394 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:31:56,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:31:56,422 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:31:56,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:31:56,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:31:56,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:31:56,423 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:31:56,423 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:31:56,423 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:31:56,423 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:31:56,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:31:56,423 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:31:56,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:31:56,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:31:56,426 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:31:56,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:31:56,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:31:56,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:31:56,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:31:56,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:31:56,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:31:56,429 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:31:56,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:31:56,429 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:31:56,429 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:31:56,429 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:31:56,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:31:56,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:31:56,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:31:56,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:31:56,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:31:56,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:31:56,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:31:56,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:31:56,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:31:56,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:31:56,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:31:56,431 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:31:56,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:31:56,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:31:56,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:31:56,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:31:56,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:31:56,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:31:56,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:31:56,431 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 [2024-11-28 03:31:56,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:31:56,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:31:56,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:31:56,772 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:31:56,772 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:31:56,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-races/race-1_3-join.i [2024-11-28 03:31:59,779 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/data/4f23e4a74/80eb91ce058847e9b9e4f907bf31030a/FLAG2990e39df [2024-11-28 03:32:00,165 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:32:00,169 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/sv-benchmarks/c/ldv-races/race-1_3-join.i [2024-11-28 03:32:00,195 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/data/4f23e4a74/80eb91ce058847e9b9e4f907bf31030a/FLAG2990e39df [2024-11-28 03:32:00,209 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/data/4f23e4a74/80eb91ce058847e9b9e4f907bf31030a [2024-11-28 03:32:00,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:32:00,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:32:00,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:32:00,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:32:00,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:32:00,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:00" (1/1) ... [2024-11-28 03:32:00,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a79086f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:00, skipping insertion in model container [2024-11-28 03:32:00,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:00" (1/1) ... [2024-11-28 03:32:00,276 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:32:01,129 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/sv-benchmarks/c/ldv-races/race-1_3-join.i[76153,76166] [2024-11-28 03:32:01,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:32:01,173 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:32:01,291 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/sv-benchmarks/c/ldv-races/race-1_3-join.i[76153,76166] [2024-11-28 03:32:01,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:32:01,449 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:32:01,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01 WrapperNode [2024-11-28 03:32:01,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:32:01,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:32:01,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:32:01,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:32:01,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (1/1) ... [2024-11-28 03:32:01,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (1/1) ... [2024-11-28 03:32:01,530 INFO L138 Inliner]: procedures = 483, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2024-11-28 03:32:01,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:32:01,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:32:01,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:32:01,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:32:01,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (1/1) ... [2024-11-28 03:32:01,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (1/1) ... [2024-11-28 03:32:01,546 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (1/1) ... [2024-11-28 03:32:01,566 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 5, 1]. 63 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-11-28 03:32:01,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (1/1) ... [2024-11-28 03:32:01,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (1/1) ... [2024-11-28 03:32:01,580 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (1/1) ... [2024-11-28 03:32:01,581 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (1/1) ... [2024-11-28 03:32:01,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (1/1) ... [2024-11-28 03:32:01,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (1/1) ... [2024-11-28 03:32:01,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (1/1) ... [2024-11-28 03:32:01,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:32:01,594 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:32:01,594 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:32:01,594 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:32:01,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (1/1) ... [2024-11-28 03:32:01,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:32:01,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:01,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:01,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:32:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 03:32:01,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:32:01,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 03:32:01,676 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:32:01,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:32:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:32:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:32:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:32:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:32:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:32:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:32:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:32:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 03:32:01,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 03:32:01,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:32:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:32:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:32:01,680 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:32:01,975 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:32:01,977 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:32:02,172 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:32:02,172 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:32:02,319 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:32:02,319 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:32:02,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:02 BoogieIcfgContainer [2024-11-28 03:32:02,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:32:02,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:32:02,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:32:02,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:32:02,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:32:00" (1/3) ... [2024-11-28 03:32:02,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a9d65d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:32:02, skipping insertion in model container [2024-11-28 03:32:02,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:01" (2/3) ... [2024-11-28 03:32:02,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a9d65d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:32:02, skipping insertion in model container [2024-11-28 03:32:02,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:02" (3/3) ... [2024-11-28 03:32:02,329 INFO L128 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2024-11-28 03:32:02,345 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:32:02,348 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-1_3-join.i that has 2 procedures, 32 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-28 03:32:02,348 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:32:02,383 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 03:32:02,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 36 transitions, 79 flow [2024-11-28 03:32:02,454 INFO L124 PetriNetUnfolderBase]: 4/42 cut-off events. [2024-11-28 03:32:02,456 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:32:02,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 42 events. 4/42 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 80 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 20. Up to 3 conditions per place. [2024-11-28 03:32:02,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 36 transitions, 79 flow [2024-11-28 03:32:02,464 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 30 transitions, 66 flow [2024-11-28 03:32:02,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:32:02,489 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;@3faee706, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:32:02,489 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-28 03:32:02,493 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:32:02,493 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-11-28 03:32:02,493 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:32:02,493 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:32:02,494 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 03:32:02,494 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-28 03:32:02,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:02,503 INFO L85 PathProgramCache]: Analyzing trace with hash 275165, now seen corresponding path program 1 times [2024-11-28 03:32:02,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:02,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851160204] [2024-11-28 03:32:02,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:02,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:03,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:03,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:03,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851160204] [2024-11-28 03:32:03,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851160204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:03,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:03,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:32:03,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104294243] [2024-11-28 03:32:03,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:03,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:03,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:03,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:03,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:03,081 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 36 [2024-11-28 03:32:03,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-28 03:32:03,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:32:03,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 36 [2024-11-28 03:32:03,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:32:03,172 INFO L124 PetriNetUnfolderBase]: 15/59 cut-off events. [2024-11-28 03:32:03,173 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:32:03,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 59 events. 15/59 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 166 event pairs, 15 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 82. Up to 48 conditions per place. [2024-11-28 03:32:03,175 INFO L140 encePairwiseOnDemand]: 28/36 looper letters, 11 selfloop transitions, 4 changer transitions 3/22 dead transitions. [2024-11-28 03:32:03,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 86 flow [2024-11-28 03:32:03,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:03,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:32:03,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 45 transitions. [2024-11-28 03:32:03,189 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-11-28 03:32:03,193 INFO L175 Difference]: Start difference. First operand has 31 places, 30 transitions, 66 flow. Second operand 3 states and 45 transitions. [2024-11-28 03:32:03,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 86 flow [2024-11-28 03:32:03,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 22 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:32:03,201 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 47 flow [2024-11-28 03:32:03,204 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2024-11-28 03:32:03,210 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -6 predicate places. [2024-11-28 03:32:03,210 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 47 flow [2024-11-28 03:32:03,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-28 03:32:03,211 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:32:03,211 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:03,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:32:03,211 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-28 03:32:03,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:03,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1871724968, now seen corresponding path program 1 times [2024-11-28 03:32:03,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:03,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559168211] [2024-11-28 03:32:03,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:03,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:03,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:03,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:03,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559168211] [2024-11-28 03:32:03,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559168211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:03,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:03,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:32:03,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187640763] [2024-11-28 03:32:03,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:03,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:03,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:03,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:03,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:03,479 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 36 [2024-11-28 03:32:03,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:03,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:32:03,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 36 [2024-11-28 03:32:03,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:32:03,580 INFO L124 PetriNetUnfolderBase]: 17/60 cut-off events. [2024-11-28 03:32:03,580 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:32:03,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 60 events. 17/60 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 149 event pairs, 14 based on Foata normal form. 6/65 useless extension candidates. Maximal degree in co-relation 101. Up to 48 conditions per place. [2024-11-28 03:32:03,581 INFO L140 encePairwiseOnDemand]: 33/36 looper letters, 12 selfloop transitions, 2 changer transitions 6/23 dead transitions. [2024-11-28 03:32:03,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 23 transitions, 93 flow [2024-11-28 03:32:03,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:03,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:32:03,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-11-28 03:32:03,582 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2024-11-28 03:32:03,582 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 47 flow. Second operand 3 states and 56 transitions. [2024-11-28 03:32:03,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 23 transitions, 93 flow [2024-11-28 03:32:03,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 23 transitions, 85 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:32:03,584 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 41 flow [2024-11-28 03:32:03,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2024-11-28 03:32:03,585 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -8 predicate places. [2024-11-28 03:32:03,585 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 41 flow [2024-11-28 03:32:03,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:03,585 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:32:03,585 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:03,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:32:03,588 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-28 03:32:03,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:03,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1413968918, now seen corresponding path program 1 times [2024-11-28 03:32:03,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:03,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680792790] [2024-11-28 03:32:03,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:03,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:03,634 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:03,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:32:03,683 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:32:03,684 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-28 03:32:03,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-28 03:32:03,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-11-28 03:32:03,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-28 03:32:03,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-28 03:32:03,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:32:03,688 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 03:32:03,718 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:32:03,719 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:32:03,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:32:03 BasicIcfg [2024-11-28 03:32:03,724 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:32:03,724 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:32:03,725 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:32:03,725 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:32:03,725 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:02" (3/4) ... [2024-11-28 03:32:03,726 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 03:32:03,778 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 11. [2024-11-28 03:32:03,837 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:32:03,837 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:32:03,837 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:32:03,838 INFO L158 Benchmark]: Toolchain (without parser) took 3625.21ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 67.2MB in the end (delta: 23.1MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2024-11-28 03:32:03,838 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 74.0MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:32:03,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1235.94ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 87.1MB in the end (delta: 2.9MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2024-11-28 03:32:03,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.24ms. Allocated memory is still 117.4MB. Free memory was 87.1MB in the beginning and 84.2MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:32:03,840 INFO L158 Benchmark]: Boogie Preprocessor took 61.45ms. Allocated memory is still 117.4MB. Free memory was 84.2MB in the beginning and 81.3MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:32:03,841 INFO L158 Benchmark]: RCFGBuilder took 725.63ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 52.9MB in the end (delta: 28.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 03:32:03,841 INFO L158 Benchmark]: TraceAbstraction took 1402.00ms. Allocated memory is still 117.4MB. Free memory was 52.3MB in the beginning and 72.5MB in the end (delta: -20.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:32:03,843 INFO L158 Benchmark]: Witness Printer took 112.67ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 67.2MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:32:03,845 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 74.0MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1235.94ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 87.1MB in the end (delta: 2.9MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.24ms. Allocated memory is still 117.4MB. Free memory was 87.1MB in the beginning and 84.2MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.45ms. Allocated memory is still 117.4MB. Free memory was 84.2MB in the beginning and 81.3MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 725.63ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 52.9MB in the end (delta: 28.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1402.00ms. Allocated memory is still 117.4MB. Free memory was 52.3MB in the beginning and 72.5MB in the end (delta: -20.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 112.67ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 67.2MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL, EXPR 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={3:0}, pdev=1, t1=0] [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [\old(arg)={0:0}, mutex={3:0}, pdev=1, t1=0] [L1713] 0 return 0; VAL [\old(arg)={0:0}, \result=0, arg={0:0}, mutex={3:0}, pdev=1, t1=0] [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) [L1735] CALL 0 module_exit() [L1721] 0 void *status; VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=1, status={5:0}, t1=0] [L1723] 0 pdev = 4 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=4, status={5:0}, t1=0] [L1702] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=0] [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(arg)={0:0}, \old(expression)=0, arg={0:0}, expression=0, mutex={3:0}, pdev=6, t1=0] - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 40 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 2 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 03:32:03,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da8efc6-4460-495c-bc98-7fab8fb51ade/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE