./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi003_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_e8ef3f5b-c295-4266-84ed-868663513b2a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/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_e8ef3f5b-c295-4266-84ed-868663513b2a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/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_e8ef3f5b-c295-4266-84ed-868663513b2a/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 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:01:47,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:01:48,072 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:01:48,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:01:48,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:01:48,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:01:48,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:01:48,132 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:01:48,133 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:01:48,133 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:01:48,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:01:48,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:01:48,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:01:48,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:01:48,134 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:01:48,135 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:01:48,135 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:01:48,135 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:01:48,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:01:48,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:01:48,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:01:48,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:01:48,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:01:48,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:01:48,136 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:01:48,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:01:48,137 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:01:48,137 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:01:48,137 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:01:48,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:01:48,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:01:48,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:01:48,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:01:48,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:01:48,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:01:48,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:01:48,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:01:48,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:01:48,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:01:48,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:01:48,140 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:01:48,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:01:48,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:01:48,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:01:48,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:01:48,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:01:48,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:01:48,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:01:48,141 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_e8ef3f5b-c295-4266-84ed-868663513b2a/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 -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 [2024-11-27 20:01:48,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:01:48,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:01:48,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:01:48,578 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:01:48,578 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:01:48,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2024-11-27 20:01:52,480 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/bin/uautomizer-verify-aQ6SnzHsRB/data/8e4646824/c42b226c16d74f1a96497d6bd71508b2/FLAG800f40944 [2024-11-27 20:01:52,953 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:01:52,954 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2024-11-27 20:01:52,981 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/bin/uautomizer-verify-aQ6SnzHsRB/data/8e4646824/c42b226c16d74f1a96497d6bd71508b2/FLAG800f40944 [2024-11-27 20:01:53,064 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/bin/uautomizer-verify-aQ6SnzHsRB/data/8e4646824/c42b226c16d74f1a96497d6bd71508b2 [2024-11-27 20:01:53,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:01:53,070 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:01:53,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:01:53,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:01:53,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:01:53,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:01:53" (1/1) ... [2024-11-27 20:01:53,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:53, skipping insertion in model container [2024-11-27 20:01:53,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:01:53" (1/1) ... [2024-11-27 20:01:53,157 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:01:53,443 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_e8ef3f5b-c295-4266-84ed-868663513b2a/sv-benchmarks/c/pthread-wmm/rfi003_tso.i[944,957] [2024-11-27 20:01:53,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:01:53,909 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:01:53,926 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_e8ef3f5b-c295-4266-84ed-868663513b2a/sv-benchmarks/c/pthread-wmm/rfi003_tso.i[944,957] [2024-11-27 20:01:54,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:01:54,136 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:01:54,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54 WrapperNode [2024-11-27 20:01:54,138 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:01:54,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:01:54,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:01:54,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:01:54,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (1/1) ... [2024-11-27 20:01:54,174 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (1/1) ... [2024-11-27 20:01:54,216 INFO L138 Inliner]: procedures = 174, calls = 39, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 168 [2024-11-27 20:01:54,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:01:54,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:01:54,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:01:54,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:01:54,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (1/1) ... [2024-11-27 20:01:54,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (1/1) ... [2024-11-27 20:01:54,246 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (1/1) ... [2024-11-27 20:01:54,292 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]. [2024-11-27 20:01:54,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (1/1) ... [2024-11-27 20:01:54,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (1/1) ... [2024-11-27 20:01:54,304 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (1/1) ... [2024-11-27 20:01:54,306 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (1/1) ... [2024-11-27 20:01:54,308 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (1/1) ... [2024-11-27 20:01:54,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (1/1) ... [2024-11-27 20:01:54,312 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (1/1) ... [2024-11-27 20:01:54,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:01:54,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:01:54,318 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:01:54,318 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:01:54,319 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (1/1) ... [2024-11-27 20:01:54,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:01:54,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:01:54,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:01:54,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:01:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 20:01:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:01:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-27 20:01:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-27 20:01:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-27 20:01:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-27 20:01:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:01:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 20:01:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:01:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:01:54,396 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:01:54,596 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:01:54,599 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:01:55,205 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:01:55,206 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:01:55,632 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:01:55,632 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:01:55,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:01:55 BoogieIcfgContainer [2024-11-27 20:01:55,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:01:55,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:01:55,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:01:55,645 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:01:55,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:01:53" (1/3) ... [2024-11-27 20:01:55,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e84e1b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:01:55, skipping insertion in model container [2024-11-27 20:01:55,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:01:54" (2/3) ... [2024-11-27 20:01:55,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e84e1b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:01:55, skipping insertion in model container [2024-11-27 20:01:55,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:01:55" (3/3) ... [2024-11-27 20:01:55,650 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2024-11-27 20:01:55,672 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:01:55,674 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi003_tso.i that has 3 procedures, 33 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-27 20:01:55,678 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:01:55,775 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:01:55,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 74 flow [2024-11-27 20:01:55,900 INFO L124 PetriNetUnfolderBase]: 1/31 cut-off events. [2024-11-27 20:01:55,905 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:01:55,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 31 events. 1/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-11-27 20:01:55,911 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 33 transitions, 74 flow [2024-11-27 20:01:55,916 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 31 transitions, 68 flow [2024-11-27 20:01:55,930 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:01:55,952 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;@7379a817, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:01:55,954 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-27 20:01:55,968 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:01:55,968 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-27 20:01:55,968 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:01:55,969 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:55,969 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:55,970 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 20:01:55,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:55,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1718409122, now seen corresponding path program 1 times [2024-11-27 20:01:55,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:55,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225644597] [2024-11-27 20:01:55,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:55,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:01:56,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:56,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225644597] [2024-11-27 20:01:56,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225644597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:56,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:56,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 20:01:56,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222466213] [2024-11-27 20:01:56,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:56,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:01:56,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:56,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:01:56,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:01:56,869 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-11-27 20:01:56,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-27 20:01:56,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:56,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-11-27 20:01:56,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:57,365 INFO L124 PetriNetUnfolderBase]: 249/482 cut-off events. [2024-11-27 20:01:57,365 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:01:57,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 482 events. 249/482 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2462 event pairs, 24 based on Foata normal form. 24/495 useless extension candidates. Maximal degree in co-relation 912. Up to 366 conditions per place. [2024-11-27 20:01:57,375 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 23 selfloop transitions, 2 changer transitions 2/38 dead transitions. [2024-11-27 20:01:57,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 136 flow [2024-11-27 20:01:57,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:01:57,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:01:57,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-11-27 20:01:57,401 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2024-11-27 20:01:57,407 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 68 flow. Second operand 3 states and 69 transitions. [2024-11-27 20:01:57,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 136 flow [2024-11-27 20:01:57,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 38 transitions, 134 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:01:57,419 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 64 flow [2024-11-27 20:01:57,423 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-27 20:01:57,430 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2024-11-27 20:01:57,430 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 64 flow [2024-11-27 20:01:57,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-27 20:01:57,431 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:57,431 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:57,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:01:57,433 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 20:01:57,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:57,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1142458704, now seen corresponding path program 1 times [2024-11-27 20:01:57,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:57,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276926359] [2024-11-27 20:01:57,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:57,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:58,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:01:58,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:58,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276926359] [2024-11-27 20:01:58,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276926359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:58,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:58,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:01:58,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991656824] [2024-11-27 20:01:58,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:58,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:01:58,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:58,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:01:58,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:01:58,062 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-27 20:01:58,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-27 20:01:58,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:58,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-27 20:01:58,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:58,507 INFO L124 PetriNetUnfolderBase]: 268/553 cut-off events. [2024-11-27 20:01:58,507 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-11-27 20:01:58,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1078 conditions, 553 events. 268/553 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2732 event pairs, 62 based on Foata normal form. 35/563 useless extension candidates. Maximal degree in co-relation 1068. Up to 241 conditions per place. [2024-11-27 20:01:58,520 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 37 selfloop transitions, 4 changer transitions 1/50 dead transitions. [2024-11-27 20:01:58,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 50 transitions, 198 flow [2024-11-27 20:01:58,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:01:58,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:01:58,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-11-27 20:01:58,524 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-11-27 20:01:58,524 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 64 flow. Second operand 4 states and 84 transitions. [2024-11-27 20:01:58,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 50 transitions, 198 flow [2024-11-27 20:01:58,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 50 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:01:58,530 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 86 flow [2024-11-27 20:01:58,531 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2024-11-27 20:01:58,533 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2024-11-27 20:01:58,533 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 86 flow [2024-11-27 20:01:58,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-27 20:01:58,533 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:58,534 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:58,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:01:58,534 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 20:01:58,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:58,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1130605351, now seen corresponding path program 1 times [2024-11-27 20:01:58,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:58,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567952037] [2024-11-27 20:01:58,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:58,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:59,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:01:59,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:01:59,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567952037] [2024-11-27 20:01:59,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567952037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:59,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:59,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:01:59,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233399357] [2024-11-27 20:01:59,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:59,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:01:59,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:59,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:01:59,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:01:59,289 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-27 20:01:59,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-27 20:01:59,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:01:59,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-27 20:01:59,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:01:59,591 INFO L124 PetriNetUnfolderBase]: 134/276 cut-off events. [2024-11-27 20:01:59,593 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-27 20:01:59,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 276 events. 134/276 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1017 event pairs, 42 based on Foata normal form. 20/287 useless extension candidates. Maximal degree in co-relation 633. Up to 116 conditions per place. [2024-11-27 20:01:59,598 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 30 selfloop transitions, 6 changer transitions 1/45 dead transitions. [2024-11-27 20:01:59,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 195 flow [2024-11-27 20:01:59,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:01:59,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 20:01:59,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2024-11-27 20:01:59,623 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5393939393939394 [2024-11-27 20:01:59,623 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 86 flow. Second operand 5 states and 89 transitions. [2024-11-27 20:01:59,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 195 flow [2024-11-27 20:01:59,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 186 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-27 20:01:59,625 INFO L231 Difference]: Finished difference. Result has 42 places, 30 transitions, 102 flow [2024-11-27 20:01:59,626 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=42, PETRI_TRANSITIONS=30} [2024-11-27 20:01:59,627 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 5 predicate places. [2024-11-27 20:01:59,627 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 30 transitions, 102 flow [2024-11-27 20:01:59,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-27 20:01:59,627 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:01:59,628 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, 1, 1, 1] [2024-11-27 20:01:59,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:01:59,628 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 20:01:59,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:59,629 INFO L85 PathProgramCache]: Analyzing trace with hash -303791634, now seen corresponding path program 1 times [2024-11-27 20:01:59,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:01:59,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627990575] [2024-11-27 20:01:59,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:59,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:01:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:02:06,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:02:06,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:02:06,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627990575] [2024-11-27 20:02:06,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627990575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:02:06,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:02:06,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 20:02:06,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680277492] [2024-11-27 20:02:06,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:02:06,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:02:06,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:02:06,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:02:06,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:02:06,446 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-11-27 20:02:06,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 102 flow. Second operand has 12 states, 12 states have (on average 12.416666666666666) internal successors, (149), 12 states have internal predecessors, (149), 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) [2024-11-27 20:02:06,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:02:06,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-11-27 20:02:06,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:02:07,920 INFO L124 PetriNetUnfolderBase]: 148/344 cut-off events. [2024-11-27 20:02:07,920 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-11-27 20:02:07,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 777 conditions, 344 events. 148/344 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1389 event pairs, 28 based on Foata normal form. 4/343 useless extension candidates. Maximal degree in co-relation 763. Up to 136 conditions per place. [2024-11-27 20:02:07,923 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 25 selfloop transitions, 15 changer transitions 16/67 dead transitions. [2024-11-27 20:02:07,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 67 transitions, 296 flow [2024-11-27 20:02:07,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:02:07,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-27 20:02:07,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 178 transitions. [2024-11-27 20:02:07,926 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4903581267217631 [2024-11-27 20:02:07,927 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 102 flow. Second operand 11 states and 178 transitions. [2024-11-27 20:02:07,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 67 transitions, 296 flow [2024-11-27 20:02:07,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 67 transitions, 262 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-27 20:02:07,931 INFO L231 Difference]: Finished difference. Result has 51 places, 41 transitions, 158 flow [2024-11-27 20:02:07,932 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=158, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2024-11-27 20:02:07,933 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 14 predicate places. [2024-11-27 20:02:07,933 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 158 flow [2024-11-27 20:02:07,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.416666666666666) internal successors, (149), 12 states have internal predecessors, (149), 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) [2024-11-27 20:02:07,933 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:02:07,933 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, 1, 1, 1] [2024-11-27 20:02:07,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:02:07,934 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 20:02:07,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:02:07,935 INFO L85 PathProgramCache]: Analyzing trace with hash 56928114, now seen corresponding path program 2 times [2024-11-27 20:02:07,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:02:07,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160351335] [2024-11-27 20:02:07,935 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:02:07,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:02:08,115 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:02:08,115 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:02:11,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:02:11,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:02:11,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160351335] [2024-11-27 20:02:11,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160351335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:02:11,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:02:11,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:02:11,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31617498] [2024-11-27 20:02:11,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:02:11,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:02:11,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:02:11,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:02:11,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:02:11,781 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-11-27 20:02:11,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 158 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2024-11-27 20:02:11,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:02:11,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-11-27 20:02:11,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:02:13,086 INFO L124 PetriNetUnfolderBase]: 182/434 cut-off events. [2024-11-27 20:02:13,086 INFO L125 PetriNetUnfolderBase]: For 134/138 co-relation queries the response was YES. [2024-11-27 20:02:13,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1088 conditions, 434 events. 182/434 cut-off events. For 134/138 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1972 event pairs, 52 based on Foata normal form. 4/426 useless extension candidates. Maximal degree in co-relation 1072. Up to 132 conditions per place. [2024-11-27 20:02:13,091 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 19 selfloop transitions, 7 changer transitions 35/72 dead transitions. [2024-11-27 20:02:13,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 72 transitions, 387 flow [2024-11-27 20:02:13,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:02:13,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 20:02:13,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 165 transitions. [2024-11-27 20:02:13,094 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-27 20:02:13,094 INFO L175 Difference]: Start difference. First operand has 51 places, 41 transitions, 158 flow. Second operand 10 states and 165 transitions. [2024-11-27 20:02:13,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 72 transitions, 387 flow [2024-11-27 20:02:13,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 72 transitions, 380 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-27 20:02:13,101 INFO L231 Difference]: Finished difference. Result has 59 places, 32 transitions, 137 flow [2024-11-27 20:02:13,101 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=137, PETRI_PLACES=59, PETRI_TRANSITIONS=32} [2024-11-27 20:02:13,104 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 22 predicate places. [2024-11-27 20:02:13,104 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 32 transitions, 137 flow [2024-11-27 20:02:13,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2024-11-27 20:02:13,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:02:13,105 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, 1, 1, 1] [2024-11-27 20:02:13,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:02:13,105 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 20:02:13,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:02:13,106 INFO L85 PathProgramCache]: Analyzing trace with hash -489657136, now seen corresponding path program 3 times [2024-11-27 20:02:13,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:02:13,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369979310] [2024-11-27 20:02:13,109 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:02:13,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:02:13,402 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 20:02:13,402 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:02:14,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:02:14,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:02:14,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369979310] [2024-11-27 20:02:14,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369979310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:02:14,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:02:14,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:02:14,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743067302] [2024-11-27 20:02:14,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:02:14,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:02:14,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:02:14,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:02:14,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:02:14,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-11-27 20:02:14,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 32 transitions, 137 flow. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 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) [2024-11-27 20:02:14,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:02:14,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-11-27 20:02:14,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:02:14,865 INFO L124 PetriNetUnfolderBase]: 60/145 cut-off events. [2024-11-27 20:02:14,865 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-27 20:02:14,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 145 events. 60/145 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 375 event pairs, 8 based on Foata normal form. 4/147 useless extension candidates. Maximal degree in co-relation 391. Up to 58 conditions per place. [2024-11-27 20:02:14,866 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2024-11-27 20:02:14,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 39 transitions, 215 flow [2024-11-27 20:02:14,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:02:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-27 20:02:14,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 102 transitions. [2024-11-27 20:02:14,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38636363636363635 [2024-11-27 20:02:14,870 INFO L175 Difference]: Start difference. First operand has 59 places, 32 transitions, 137 flow. Second operand 8 states and 102 transitions. [2024-11-27 20:02:14,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 39 transitions, 215 flow [2024-11-27 20:02:14,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 172 flow, removed 7 selfloop flow, removed 13 redundant places. [2024-11-27 20:02:14,876 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2024-11-27 20:02:14,876 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2024-11-27 20:02:14,877 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 9 predicate places. [2024-11-27 20:02:14,877 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2024-11-27 20:02:14,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 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) [2024-11-27 20:02:14,884 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-27 20:02:14,885 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-27 20:02:14,885 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-27 20:02:14,886 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-27 20:02:14,886 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-27 20:02:14,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:02:14,887 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2024-11-27 20:02:14,897 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 20:02:14,897 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:02:14,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:02:14 BasicIcfg [2024-11-27 20:02:14,907 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:02:14,908 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:02:14,908 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:02:14,908 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:02:14,909 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:01:55" (3/4) ... [2024-11-27 20:02:14,912 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:02:14,916 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-27 20:02:14,916 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-27 20:02:14,922 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2024-11-27 20:02:14,923 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-27 20:02:14,923 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-27 20:02:14,923 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-27 20:02:15,042 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:02:15,043 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:02:15,043 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:02:15,044 INFO L158 Benchmark]: Toolchain (without parser) took 21974.84ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 100.3MB in the beginning and 236.2MB in the end (delta: -135.9MB). Peak memory consumption was 265.9MB. Max. memory is 16.1GB. [2024-11-27 20:02:15,045 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:02:15,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1067.49ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 74.7MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 20:02:15,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.39ms. Allocated memory is still 142.6MB. Free memory was 74.7MB in the beginning and 71.4MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:02:15,046 INFO L158 Benchmark]: Boogie Preprocessor took 99.39ms. Allocated memory is still 142.6MB. Free memory was 71.4MB in the beginning and 67.3MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:02:15,047 INFO L158 Benchmark]: RCFGBuilder took 1316.23ms. Allocated memory is still 142.6MB. Free memory was 67.3MB in the beginning and 67.4MB in the end (delta: -36.3kB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2024-11-27 20:02:15,048 INFO L158 Benchmark]: TraceAbstraction took 19269.04ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 66.7MB in the beginning and 240.8MB in the end (delta: -174.1MB). Peak memory consumption was 225.7MB. Max. memory is 16.1GB. [2024-11-27 20:02:15,050 INFO L158 Benchmark]: Witness Printer took 135.30ms. Allocated memory is still 545.3MB. Free memory was 240.8MB in the beginning and 236.2MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:02:15,054 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1067.49ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 74.7MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.39ms. Allocated memory is still 142.6MB. Free memory was 74.7MB in the beginning and 71.4MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 99.39ms. Allocated memory is still 142.6MB. Free memory was 71.4MB in the beginning and 67.3MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1316.23ms. Allocated memory is still 142.6MB. Free memory was 67.3MB in the beginning and 67.4MB in the end (delta: -36.3kB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * TraceAbstraction took 19269.04ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 66.7MB in the beginning and 240.8MB in the end (delta: -174.1MB). Peak memory consumption was 225.7MB. Max. memory is 16.1GB. * Witness Printer took 135.30ms. Allocated memory is still 545.3MB. Free memory was 240.8MB in the beginning and 236.2MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. 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 - 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, 53 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: 19.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 257 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 246 mSDsluCounter, 201 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 193 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 787 IncrementalHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 8 mSDtfsCounter, 787 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=4, InterpolantAutomatonStates: 41, 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, 1.1s SatisfiabilityAnalysisTime, 12.5s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 1207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 20:02:15,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ef3f5b-c295-4266-84ed-868663513b2a/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