./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/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_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b21640b39ce7bcc8ee8415d7ec787ca73953d49130bebf43478653d490e2460 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:40:29,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:40:29,422 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 02:40:29,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:40:29,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:40:29,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:40:29,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:40:29,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:40:29,487 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:40:29,487 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:40:29,488 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:40:29,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:40:29,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:40:29,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:40:29,489 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:40:29,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:40:29,491 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:40:29,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:40:29,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:40:29,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:40:29,492 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:40:29,492 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:40:29,492 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 02:40:29,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:40:29,493 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:40:29,493 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:40:29,493 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:40:29,493 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:40:29,493 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:40:29,493 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:40:29,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:40:29,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:40:29,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:40:29,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:40:29,494 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:40:29,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:40:29,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:40:29,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:40:29,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:40:29,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:40:29,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:40:29,494 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:40:29,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:40:29,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:40:29,495 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:40:29,496 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:40:29,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:40:29,497 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_40aa8d08-f62c-473f-9e40-e23b8287e104/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 4b21640b39ce7bcc8ee8415d7ec787ca73953d49130bebf43478653d490e2460 [2024-11-28 02:40:29,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:40:29,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:40:29,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:40:29,875 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:40:29,875 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:40:29,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2024-11-28 02:40:32,930 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/data/bb9f76557/d3c0e52186eb4046a4196cb143545b99/FLAGc76a0c1d8 [2024-11-28 02:40:33,163 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:40:33,168 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2024-11-28 02:40:33,178 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/data/bb9f76557/d3c0e52186eb4046a4196cb143545b99/FLAGc76a0c1d8 [2024-11-28 02:40:33,201 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/data/bb9f76557/d3c0e52186eb4046a4196cb143545b99 [2024-11-28 02:40:33,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:40:33,205 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:40:33,206 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:40:33,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:40:33,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:40:33,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600663cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33, skipping insertion in model container [2024-11-28 02:40:33,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,230 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:40:33,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:40:33,459 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:40:33,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:40:33,509 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:40:33,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33 WrapperNode [2024-11-28 02:40:33,510 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:40:33,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:40:33,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:40:33,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:40:33,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,526 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,549 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2024-11-28 02:40:33,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:40:33,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:40:33,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:40:33,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:40:33,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,563 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,580 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 02:40:33,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,592 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,592 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,596 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:40:33,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:40:33,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:40:33,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:40:33,609 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (1/1) ... [2024-11-28 02:40:33,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:40:33,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:40:33,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:40:33,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:40:33,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:40:33,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 02:40:33,686 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 02:40:33,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 02:40:33,686 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 02:40:33,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:40:33,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:40:33,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:40:33,688 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 02:40:33,772 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:40:33,773 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:40:34,037 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:40:34,037 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:40:34,216 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:40:34,216 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:40:34,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:34 BoogieIcfgContainer [2024-11-28 02:40:34,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:40:34,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:40:34,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:40:34,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:40:34,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:40:33" (1/3) ... [2024-11-28 02:40:34,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44154d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:40:34, skipping insertion in model container [2024-11-28 02:40:34,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:33" (2/3) ... [2024-11-28 02:40:34,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44154d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:40:34, skipping insertion in model container [2024-11-28 02:40:34,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:34" (3/3) ... [2024-11-28 02:40:34,234 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled.wvr.c [2024-11-28 02:40:34,252 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:40:34,254 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-2-unrolled.wvr.c that has 3 procedures, 29 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-28 02:40:34,254 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:40:34,310 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 02:40:34,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 30 transitions, 74 flow [2024-11-28 02:40:34,411 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-11-28 02:40:34,417 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 02:40:34,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 28 events. 2/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2024-11-28 02:40:34,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 30 transitions, 74 flow [2024-11-28 02:40:34,434 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 27 transitions, 66 flow [2024-11-28 02:40:34,446 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:40:34,470 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=None, 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;@149ae709, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:40:34,470 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-28 02:40:34,494 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:40:34,494 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2024-11-28 02:40:34,494 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 02:40:34,494 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:34,495 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:40:34,496 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 02:40:34,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:34,505 INFO L85 PathProgramCache]: Analyzing trace with hash -835961030, now seen corresponding path program 1 times [2024-11-28 02:40:34,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:34,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346431772] [2024-11-28 02:40:34,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:34,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:34,952 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 02:40:34,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:34,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346431772] [2024-11-28 02:40:34,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346431772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:34,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:34,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:40:34,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129530057] [2024-11-28 02:40:34,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:34,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:40:34,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:34,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:40:34,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:40:35,016 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-28 02:40:35,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 02:40:35,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:35,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-28 02:40:35,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:35,224 INFO L124 PetriNetUnfolderBase]: 161/297 cut-off events. [2024-11-28 02:40:35,224 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-28 02:40:35,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 297 events. 161/297 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1116 event pairs, 32 based on Foata normal form. 2/291 useless extension candidates. Maximal degree in co-relation 528. Up to 243 conditions per place. [2024-11-28 02:40:35,231 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 23 selfloop transitions, 5 changer transitions 1/34 dead transitions. [2024-11-28 02:40:35,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 34 transitions, 147 flow [2024-11-28 02:40:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:40:35,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:40:35,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2024-11-28 02:40:35,254 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-28 02:40:35,257 INFO L175 Difference]: Start difference. First operand has 32 places, 27 transitions, 66 flow. Second operand 3 states and 55 transitions. [2024-11-28 02:40:35,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 34 transitions, 147 flow [2024-11-28 02:40:35,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 34 transitions, 133 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 02:40:35,271 INFO L231 Difference]: Finished difference. Result has 29 places, 27 transitions, 79 flow [2024-11-28 02:40:35,274 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=27} [2024-11-28 02:40:35,280 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2024-11-28 02:40:35,281 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 27 transitions, 79 flow [2024-11-28 02:40:35,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 02:40:35,281 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:35,281 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] [2024-11-28 02:40:35,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:40:35,282 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 02:40:35,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:35,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1166767558, now seen corresponding path program 1 times [2024-11-28 02:40:35,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:35,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011542129] [2024-11-28 02:40:35,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:35,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:35,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:35,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:35,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011542129] [2024-11-28 02:40:35,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011542129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:35,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:35,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:40:35,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743976379] [2024-11-28 02:40:35,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:35,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:40:35,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:35,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:40:35,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:40:35,522 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-28 02:40:35,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 02:40:35,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:35,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-28 02:40:35,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:35,791 INFO L124 PetriNetUnfolderBase]: 192/350 cut-off events. [2024-11-28 02:40:35,792 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-28 02:40:35,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 350 events. 192/350 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1435 event pairs, 24 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 184. Up to 192 conditions per place. [2024-11-28 02:40:35,798 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 35 selfloop transitions, 10 changer transitions 3/55 dead transitions. [2024-11-28 02:40:35,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 55 transitions, 241 flow [2024-11-28 02:40:35,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:40:35,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 02:40:35,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 93 transitions. [2024-11-28 02:40:35,802 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.62 [2024-11-28 02:40:35,802 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 79 flow. Second operand 5 states and 93 transitions. [2024-11-28 02:40:35,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 55 transitions, 241 flow [2024-11-28 02:40:35,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 55 transitions, 235 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:40:35,807 INFO L231 Difference]: Finished difference. Result has 35 places, 34 transitions, 135 flow [2024-11-28 02:40:35,808 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=135, PETRI_PLACES=35, PETRI_TRANSITIONS=34} [2024-11-28 02:40:35,808 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2024-11-28 02:40:35,808 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 34 transitions, 135 flow [2024-11-28 02:40:35,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 02:40:35,809 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:35,809 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] [2024-11-28 02:40:35,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:40:35,809 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 02:40:35,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:35,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1290022232, now seen corresponding path program 2 times [2024-11-28 02:40:35,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:35,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016067332] [2024-11-28 02:40:35,812 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:40:35,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:35,862 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:40:35,863 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:40:36,083 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 02:40:36,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:36,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016067332] [2024-11-28 02:40:36,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016067332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:36,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:36,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:40:36,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084098725] [2024-11-28 02:40:36,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:36,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:40:36,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:36,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:40:36,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:40:36,102 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-28 02:40:36,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 135 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 02:40:36,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:36,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-28 02:40:36,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:36,331 INFO L124 PetriNetUnfolderBase]: 173/336 cut-off events. [2024-11-28 02:40:36,331 INFO L125 PetriNetUnfolderBase]: For 223/227 co-relation queries the response was YES. [2024-11-28 02:40:36,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 336 events. 173/336 cut-off events. For 223/227 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1345 event pairs, 11 based on Foata normal form. 21/349 useless extension candidates. Maximal degree in co-relation 278. Up to 132 conditions per place. [2024-11-28 02:40:36,336 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 39 selfloop transitions, 12 changer transitions 3/61 dead transitions. [2024-11-28 02:40:36,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 61 transitions, 339 flow [2024-11-28 02:40:36,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:40:36,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 02:40:36,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 94 transitions. [2024-11-28 02:40:36,338 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6266666666666667 [2024-11-28 02:40:36,339 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 135 flow. Second operand 5 states and 94 transitions. [2024-11-28 02:40:36,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 61 transitions, 339 flow [2024-11-28 02:40:36,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 61 transitions, 339 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:40:36,343 INFO L231 Difference]: Finished difference. Result has 43 places, 39 transitions, 221 flow [2024-11-28 02:40:36,344 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=43, PETRI_TRANSITIONS=39} [2024-11-28 02:40:36,345 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 11 predicate places. [2024-11-28 02:40:36,345 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 39 transitions, 221 flow [2024-11-28 02:40:36,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 02:40:36,345 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:36,346 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] [2024-11-28 02:40:36,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:40:36,346 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 02:40:36,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:36,347 INFO L85 PathProgramCache]: Analyzing trace with hash -375802139, now seen corresponding path program 1 times [2024-11-28 02:40:36,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:36,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694893098] [2024-11-28 02:40:36,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:36,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:36,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:40:36,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:36,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694893098] [2024-11-28 02:40:36,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694893098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:36,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:36,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:40:36,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397305576] [2024-11-28 02:40:36,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:36,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:40:36,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:36,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:40:36,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:40:36,549 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-28 02:40:36,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 39 transitions, 221 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) [2024-11-28 02:40:36,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:36,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-28 02:40:36,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:36,770 INFO L124 PetriNetUnfolderBase]: 171/334 cut-off events. [2024-11-28 02:40:36,771 INFO L125 PetriNetUnfolderBase]: For 727/735 co-relation queries the response was YES. [2024-11-28 02:40:36,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1136 conditions, 334 events. 171/334 cut-off events. For 727/735 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1355 event pairs, 23 based on Foata normal form. 11/336 useless extension candidates. Maximal degree in co-relation 384. Up to 201 conditions per place. [2024-11-28 02:40:36,776 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 42 selfloop transitions, 9 changer transitions 4/62 dead transitions. [2024-11-28 02:40:36,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 62 transitions, 425 flow [2024-11-28 02:40:36,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:40:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 02:40:36,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 91 transitions. [2024-11-28 02:40:36,779 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6066666666666667 [2024-11-28 02:40:36,780 INFO L175 Difference]: Start difference. First operand has 43 places, 39 transitions, 221 flow. Second operand 5 states and 91 transitions. [2024-11-28 02:40:36,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 62 transitions, 425 flow [2024-11-28 02:40:36,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 421 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-11-28 02:40:36,788 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 272 flow [2024-11-28 02:40:36,788 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=272, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2024-11-28 02:40:36,789 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 17 predicate places. [2024-11-28 02:40:36,789 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 272 flow [2024-11-28 02:40:36,789 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) [2024-11-28 02:40:36,789 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:36,790 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] [2024-11-28 02:40:36,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:40:36,790 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 02:40:36,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:36,791 INFO L85 PathProgramCache]: Analyzing trace with hash -141639491, now seen corresponding path program 2 times [2024-11-28 02:40:36,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:36,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141166290] [2024-11-28 02:40:36,791 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:40:36,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:36,811 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:40:36,814 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:40:36,949 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 02:40:36,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:36,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141166290] [2024-11-28 02:40:36,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141166290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:36,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:36,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:40:36,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333093955] [2024-11-28 02:40:36,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:36,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:40:36,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:36,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:40:36,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:40:36,966 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-28 02:40:36,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 272 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) [2024-11-28 02:40:36,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:36,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-28 02:40:36,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:37,130 INFO L124 PetriNetUnfolderBase]: 159/320 cut-off events. [2024-11-28 02:40:37,130 INFO L125 PetriNetUnfolderBase]: For 908/916 co-relation queries the response was YES. [2024-11-28 02:40:37,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 320 events. 159/320 cut-off events. For 908/916 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1176 event pairs, 24 based on Foata normal form. 18/333 useless extension candidates. Maximal degree in co-relation 830. Up to 149 conditions per place. [2024-11-28 02:40:37,136 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 42 selfloop transitions, 12 changer transitions 2/63 dead transitions. [2024-11-28 02:40:37,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 63 transitions, 484 flow [2024-11-28 02:40:37,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:40:37,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 02:40:37,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2024-11-28 02:40:37,140 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5933333333333334 [2024-11-28 02:40:37,140 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 272 flow. Second operand 5 states and 89 transitions. [2024-11-28 02:40:37,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 63 transitions, 484 flow [2024-11-28 02:40:37,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 63 transitions, 468 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-28 02:40:37,151 INFO L231 Difference]: Finished difference. Result has 55 places, 45 transitions, 335 flow [2024-11-28 02:40:37,152 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=335, PETRI_PLACES=55, PETRI_TRANSITIONS=45} [2024-11-28 02:40:37,153 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 23 predicate places. [2024-11-28 02:40:37,153 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 45 transitions, 335 flow [2024-11-28 02:40:37,153 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) [2024-11-28 02:40:37,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:37,154 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] [2024-11-28 02:40:37,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:40:37,154 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 02:40:37,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:37,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1989090881, now seen corresponding path program 1 times [2024-11-28 02:40:37,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:37,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488195906] [2024-11-28 02:40:37,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:37,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:37,571 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 02:40:37,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:37,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488195906] [2024-11-28 02:40:37,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488195906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:37,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:37,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:40:37,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708924611] [2024-11-28 02:40:37,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:37,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:40:37,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:37,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:40:37,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:40:37,583 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-28 02:40:37,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 45 transitions, 335 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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 02:40:37,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:37,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-28 02:40:37,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:37,854 INFO L124 PetriNetUnfolderBase]: 164/320 cut-off events. [2024-11-28 02:40:37,854 INFO L125 PetriNetUnfolderBase]: For 1090/1106 co-relation queries the response was YES. [2024-11-28 02:40:37,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1221 conditions, 320 events. 164/320 cut-off events. For 1090/1106 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1157 event pairs, 37 based on Foata normal form. 3/310 useless extension candidates. Maximal degree in co-relation 933. Up to 105 conditions per place. [2024-11-28 02:40:37,857 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 0 selfloop transitions, 0 changer transitions 63/63 dead transitions. [2024-11-28 02:40:37,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 63 transitions, 559 flow [2024-11-28 02:40:37,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:40:37,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:40:37,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 84 transitions. [2024-11-28 02:40:37,859 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-28 02:40:37,859 INFO L175 Difference]: Start difference. First operand has 55 places, 45 transitions, 335 flow. Second operand 6 states and 84 transitions. [2024-11-28 02:40:37,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 63 transitions, 559 flow [2024-11-28 02:40:37,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 63 transitions, 542 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-11-28 02:40:37,869 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2024-11-28 02:40:37,869 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2024-11-28 02:40:37,872 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 25 predicate places. [2024-11-28 02:40:37,872 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2024-11-28 02:40:37,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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 02:40:37,879 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-28 02:40:37,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-28 02:40:37,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-28 02:40:37,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-28 02:40:37,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:40:37,881 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2024-11-28 02:40:37,890 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 02:40:37,890 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:40:37,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:40:37 BasicIcfg [2024-11-28 02:40:37,898 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:40:37,899 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:40:37,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:40:37,900 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:40:37,900 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:34" (3/4) ... [2024-11-28 02:40:37,903 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:40:37,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-28 02:40:37,908 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-28 02:40:37,914 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2024-11-28 02:40:37,914 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-28 02:40:37,914 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 02:40:37,915 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:40:38,012 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:40:38,012 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:40:38,012 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:40:38,014 INFO L158 Benchmark]: Toolchain (without parser) took 4808.70ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 65.0MB in the end (delta: 27.7MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2024-11-28 02:40:38,014 INFO L158 Benchmark]: CDTParser took 0.57ms. 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 02:40:38,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.19ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.1MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:40:38,016 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.19ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 80.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:40:38,016 INFO L158 Benchmark]: Boogie Preprocessor took 55.44ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:40:38,016 INFO L158 Benchmark]: RCFGBuilder took 609.00ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 58.4MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:40:38,017 INFO L158 Benchmark]: TraceAbstraction took 3675.42ms. Allocated memory is still 117.4MB. Free memory was 57.8MB in the beginning and 69.4MB in the end (delta: -11.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:40:38,019 INFO L158 Benchmark]: Witness Printer took 113.19ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 65.0MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:40:38,021 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.19ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.1MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.19ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 80.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.44ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 609.00ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 58.4MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3675.42ms. Allocated memory is still 117.4MB. Free memory was 57.8MB in the beginning and 69.4MB in the end (delta: -11.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 113.19ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 65.0MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 60]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 45 locations, 4 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: 3.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 442 IncrementalHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 3 mSDtfsCounter, 442 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=5, InterpolantAutomatonStates: 29, 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, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 596 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2/2 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! [2024-11-28 02:40:38,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40aa8d08-f62c-473f-9e40-e23b8287e104/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