./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe022_tso.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_dfa31add-4adf-4673-9e75-004cb1837161/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/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_dfa31add-4adf-4673-9e75-004cb1837161/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe022_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/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_dfa31add-4adf-4673-9e75-004cb1837161/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 cfc87f4ca115dcc389a4b05cbc106fd8bac1a9e17a58d50108d65580024dc2f5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:30:01,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:30:01,299 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:30:01,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:30:01,307 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:30:01,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:30:01,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:30:01,339 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:30:01,339 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:30:01,339 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:30:01,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:30:01,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:30:01,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:30:01,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:30:01,340 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:30:01,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:30:01,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:30:01,341 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:30:01,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:30:01,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:30:01,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:30:01,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:30:01,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:30:01,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:30:01,341 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:30:01,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:30:01,342 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:30:01,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:30:01,342 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:30:01,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:30:01,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:30:01,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:30:01,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:01,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:30:01,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:30:01,343 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:30:01,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:30:01,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:01,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:30:01,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:30:01,343 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:30:01,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:30:01,344 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:30:01,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:30:01,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:30:01,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:30:01,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:30:01,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:30:01,344 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_dfa31add-4adf-4673-9e75-004cb1837161/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 -> cfc87f4ca115dcc389a4b05cbc106fd8bac1a9e17a58d50108d65580024dc2f5 [2024-11-28 03:30:01,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:30:01,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:30:01,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:30:01,745 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:30:01,746 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:30:01,747 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/safe022_tso.i [2024-11-28 03:30:05,281 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/bin/uautomizer-verify-aQ6SnzHsRB/data/6d2096ffc/2239da0db2bd491faf0f34b1483b393b/FLAG323f9c3f3 [2024-11-28 03:30:05,631 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:30:05,632 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/sv-benchmarks/c/pthread-wmm/safe022_tso.i [2024-11-28 03:30:05,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/bin/uautomizer-verify-aQ6SnzHsRB/data/6d2096ffc/2239da0db2bd491faf0f34b1483b393b/FLAG323f9c3f3 [2024-11-28 03:30:05,688 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/bin/uautomizer-verify-aQ6SnzHsRB/data/6d2096ffc/2239da0db2bd491faf0f34b1483b393b [2024-11-28 03:30:05,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:30:05,694 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:30:05,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:30:05,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:30:05,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:30:05,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:05" (1/1) ... [2024-11-28 03:30:05,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46dab861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:05, skipping insertion in model container [2024-11-28 03:30:05,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:05" (1/1) ... [2024-11-28 03:30:05,773 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:30:06,028 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_dfa31add-4adf-4673-9e75-004cb1837161/sv-benchmarks/c/pthread-wmm/safe022_tso.i[945,958] [2024-11-28 03:30:06,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:30:06,352 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:30:06,365 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_dfa31add-4adf-4673-9e75-004cb1837161/sv-benchmarks/c/pthread-wmm/safe022_tso.i[945,958] [2024-11-28 03:30:06,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:30:06,457 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:30:06,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06 WrapperNode [2024-11-28 03:30:06,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:30:06,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:30:06,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:30:06,459 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:30:06,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (1/1) ... [2024-11-28 03:30:06,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (1/1) ... [2024-11-28 03:30:06,502 INFO L138 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 50 [2024-11-28 03:30:06,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:30:06,503 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:30:06,503 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:30:06,503 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:30:06,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (1/1) ... [2024-11-28 03:30:06,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (1/1) ... [2024-11-28 03:30:06,517 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (1/1) ... [2024-11-28 03:30:06,542 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:30:06,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (1/1) ... [2024-11-28 03:30:06,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (1/1) ... [2024-11-28 03:30:06,551 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (1/1) ... [2024-11-28 03:30:06,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (1/1) ... [2024-11-28 03:30:06,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (1/1) ... [2024-11-28 03:30:06,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (1/1) ... [2024-11-28 03:30:06,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (1/1) ... [2024-11-28 03:30:06,559 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:30:06,560 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:30:06,560 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:30:06,560 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:30:06,561 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (1/1) ... [2024-11-28 03:30:06,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:06,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:06,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:30:06,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:30:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 03:30:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:30:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 03:30:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 03:30:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 03:30:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 03:30:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:30:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 03:30:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:30:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:30:06,649 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 03:30:06,825 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:30:06,829 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:30:07,027 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:30:07,027 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:30:07,144 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:30:07,145 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:30:07,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:07 BoogieIcfgContainer [2024-11-28 03:30:07,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:30:07,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:30:07,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:30:07,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:30:07,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:30:05" (1/3) ... [2024-11-28 03:30:07,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300ad0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:30:07, skipping insertion in model container [2024-11-28 03:30:07,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:06" (2/3) ... [2024-11-28 03:30:07,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300ad0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:30:07, skipping insertion in model container [2024-11-28 03:30:07,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:07" (3/3) ... [2024-11-28 03:30:07,158 INFO L128 eAbstractionObserver]: Analyzing ICFG safe022_tso.i [2024-11-28 03:30:07,178 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:30:07,179 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe022_tso.i that has 3 procedures, 29 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 03:30:07,180 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:30:07,254 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:30:07,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 66 flow [2024-11-28 03:30:07,367 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-28 03:30:07,370 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:30:07,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 1/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-11-28 03:30:07,374 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 29 transitions, 66 flow [2024-11-28 03:30:07,378 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 24 transitions, 54 flow [2024-11-28 03:30:07,388 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:30:07,403 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;@f53fe85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:30:07,403 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-28 03:30:07,416 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:30:07,417 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-11-28 03:30:07,417 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:30:07,417 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:30:07,418 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:07,418 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:30:07,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:07,426 INFO L85 PathProgramCache]: Analyzing trace with hash 733379828, now seen corresponding path program 1 times [2024-11-28 03:30:07,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:07,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800222130] [2024-11-28 03:30:07,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:07,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:08,202 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 03:30:08,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:08,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800222130] [2024-11-28 03:30:08,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800222130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:08,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:08,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:30:08,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761400370] [2024-11-28 03:30:08,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:08,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:30:08,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:08,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:30:08,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:30:08,291 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 29 [2024-11-28 03:30:08,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 03:30:08,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:30:08,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 29 [2024-11-28 03:30:08,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:30:08,433 INFO L124 PetriNetUnfolderBase]: 54/152 cut-off events. [2024-11-28 03:30:08,433 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:30:08,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 152 events. 54/152 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 600 event pairs, 6 based on Foata normal form. 9/156 useless extension candidates. Maximal degree in co-relation 266. Up to 55 conditions per place. [2024-11-28 03:30:08,437 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 17 selfloop transitions, 4 changer transitions 1/34 dead transitions. [2024-11-28 03:30:08,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 34 transitions, 121 flow [2024-11-28 03:30:08,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:30:08,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:30:08,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-11-28 03:30:08,454 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7241379310344828 [2024-11-28 03:30:08,456 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 54 flow. Second operand 4 states and 84 transitions. [2024-11-28 03:30:08,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 34 transitions, 121 flow [2024-11-28 03:30:08,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 34 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:30:08,472 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 78 flow [2024-11-28 03:30:08,476 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2024-11-28 03:30:08,483 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2024-11-28 03:30:08,483 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 78 flow [2024-11-28 03:30:08,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 03:30:08,484 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:30:08,484 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:08,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:30:08,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:30:08,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:08,486 INFO L85 PathProgramCache]: Analyzing trace with hash -888541164, now seen corresponding path program 1 times [2024-11-28 03:30:08,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:08,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107992058] [2024-11-28 03:30:08,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:08,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:08,850 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 03:30:08,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:08,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107992058] [2024-11-28 03:30:08,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107992058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:08,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:08,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:30:08,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607813316] [2024-11-28 03:30:08,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:08,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:30:08,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:08,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:30:08,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:30:08,869 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 29 [2024-11-28 03:30:08,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:30:08,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:30:08,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 29 [2024-11-28 03:30:08,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:30:09,071 INFO L124 PetriNetUnfolderBase]: 38/107 cut-off events. [2024-11-28 03:30:09,072 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-28 03:30:09,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 107 events. 38/107 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 285 event pairs, 2 based on Foata normal form. 8/111 useless extension candidates. Maximal degree in co-relation 240. Up to 28 conditions per place. [2024-11-28 03:30:09,116 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 16 selfloop transitions, 6 changer transitions 1/35 dead transitions. [2024-11-28 03:30:09,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 147 flow [2024-11-28 03:30:09,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:30:09,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:30:09,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 100 transitions. [2024-11-28 03:30:09,118 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6896551724137931 [2024-11-28 03:30:09,118 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 78 flow. Second operand 5 states and 100 transitions. [2024-11-28 03:30:09,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 147 flow [2024-11-28 03:30:09,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 138 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-28 03:30:09,122 INFO L231 Difference]: Finished difference. Result has 38 places, 26 transitions, 94 flow [2024-11-28 03:30:09,123 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=94, PETRI_PLACES=38, PETRI_TRANSITIONS=26} [2024-11-28 03:30:09,124 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2024-11-28 03:30:09,124 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 94 flow [2024-11-28 03:30:09,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:30:09,125 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:30:09,125 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:09,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:30:09,126 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:30:09,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:09,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1985884242, now seen corresponding path program 1 times [2024-11-28 03:30:09,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:09,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336029441] [2024-11-28 03:30:09,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:09,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:09,443 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 03:30:09,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:09,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336029441] [2024-11-28 03:30:09,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336029441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:09,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:09,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:30:09,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356051432] [2024-11-28 03:30:09,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:09,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:30:09,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:09,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:30:09,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:30:09,475 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-11-28 03:30:09,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 26 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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 03:30:09,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:30:09,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-11-28 03:30:09,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:30:09,751 INFO L124 PetriNetUnfolderBase]: 67/188 cut-off events. [2024-11-28 03:30:09,752 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2024-11-28 03:30:09,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 188 events. 67/188 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 688 event pairs, 26 based on Foata normal form. 4/181 useless extension candidates. Maximal degree in co-relation 418. Up to 61 conditions per place. [2024-11-28 03:30:09,759 INFO L140 encePairwiseOnDemand]: 22/29 looper letters, 14 selfloop transitions, 3 changer transitions 15/44 dead transitions. [2024-11-28 03:30:09,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 44 transitions, 202 flow [2024-11-28 03:30:09,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:30:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:30:09,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions. [2024-11-28 03:30:09,763 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6108374384236454 [2024-11-28 03:30:09,764 INFO L175 Difference]: Start difference. First operand has 38 places, 26 transitions, 94 flow. Second operand 7 states and 124 transitions. [2024-11-28 03:30:09,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 44 transitions, 202 flow [2024-11-28 03:30:09,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 44 transitions, 168 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-28 03:30:09,770 INFO L231 Difference]: Finished difference. Result has 42 places, 26 transitions, 81 flow [2024-11-28 03:30:09,770 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=81, PETRI_PLACES=42, PETRI_TRANSITIONS=26} [2024-11-28 03:30:09,771 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 11 predicate places. [2024-11-28 03:30:09,771 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 26 transitions, 81 flow [2024-11-28 03:30:09,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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 03:30:09,775 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:30:09,776 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:09,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:30:09,776 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:30:09,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:09,777 INFO L85 PathProgramCache]: Analyzing trace with hash -890531232, now seen corresponding path program 2 times [2024-11-28 03:30:09,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:09,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400825784] [2024-11-28 03:30:09,778 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:30:09,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:09,799 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:30:09,799 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:30:10,046 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 03:30:10,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:10,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400825784] [2024-11-28 03:30:10,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400825784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:10,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:10,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:30:10,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088498295] [2024-11-28 03:30:10,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:10,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:30:10,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:10,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:30:10,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:30:10,101 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-11-28 03:30:10,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 26 transitions, 81 flow. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 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 03:30:10,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:30:10,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-11-28 03:30:10,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:30:10,261 INFO L124 PetriNetUnfolderBase]: 28/92 cut-off events. [2024-11-28 03:30:10,262 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-28 03:30:10,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 92 events. 28/92 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 240 event pairs, 5 based on Foata normal form. 4/90 useless extension candidates. Maximal degree in co-relation 188. Up to 33 conditions per place. [2024-11-28 03:30:10,263 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2024-11-28 03:30:10,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 125 flow [2024-11-28 03:30:10,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:30:10,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:30:10,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2024-11-28 03:30:10,267 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5632183908045977 [2024-11-28 03:30:10,270 INFO L175 Difference]: Start difference. First operand has 42 places, 26 transitions, 81 flow. Second operand 6 states and 98 transitions. [2024-11-28 03:30:10,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 125 flow [2024-11-28 03:30:10,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 30 transitions, 119 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-28 03:30:10,271 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2024-11-28 03:30:10,271 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2024-11-28 03:30:10,272 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2024-11-28 03:30:10,274 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2024-11-28 03:30:10,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 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 03:30:10,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-28 03:30:10,280 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-28 03:30:10,281 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-28 03:30:10,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:30:10,283 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-28 03:30:10,288 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:30:10,289 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:30:10,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:30:10 BasicIcfg [2024-11-28 03:30:10,299 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:30:10,300 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:30:10,303 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:30:10,304 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:30:10,305 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:07" (3/4) ... [2024-11-28 03:30:10,307 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:30:10,312 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-28 03:30:10,313 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-28 03:30:10,317 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-11-28 03:30:10,318 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-28 03:30:10,319 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 03:30:10,319 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:30:10,415 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:30:10,416 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:30:10,416 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:30:10,419 INFO L158 Benchmark]: Toolchain (without parser) took 4724.56ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 67.9MB in the end (delta: 23.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2024-11-28 03:30:10,420 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:10,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 762.71ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 71.3MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:30:10,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.53ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 69.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:10,423 INFO L158 Benchmark]: Boogie Preprocessor took 55.81ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 68.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:10,425 INFO L158 Benchmark]: RCFGBuilder took 585.64ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 52.0MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:30:10,426 INFO L158 Benchmark]: TraceAbstraction took 3150.04ms. Allocated memory is still 117.4MB. Free memory was 51.4MB in the beginning and 72.5MB in the end (delta: -21.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:10,426 INFO L158 Benchmark]: Witness Printer took 116.73ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 67.9MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:10,428 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 762.71ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 71.3MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.53ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 69.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.81ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 68.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 585.64ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 52.0MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3150.04ms. Allocated memory is still 117.4MB. Free memory was 51.4MB in the beginning and 72.5MB in the end (delta: -21.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 116.73ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 67.9MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 45 locations, 3 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: 3.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 122 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 105 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 231 IncrementalHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 19 mSDtfsCounter, 231 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=2, InterpolantAutomatonStates: 22, 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, 1.4s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 309 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 03:30:10,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfa31add-4adf-4673-9e75-004cb1837161/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 Result: TRUE