./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/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_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:45:06,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:45:06,784 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:45:06,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:45:06,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:45:06,822 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:45:06,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:45:06,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:45:06,823 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:45:06,823 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:45:06,823 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:45:06,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:45:06,824 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:45:06,824 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:45:06,824 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:45:06,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:45:06,824 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:45:06,824 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:45:06,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:45:06,825 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:45:06,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:45:06,825 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:45:06,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:45:06,825 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:45:06,825 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:45:06,825 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:45:06,825 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:45:06,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:45:06,826 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:45:06,826 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:45:06,826 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:45:06,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:45:06,826 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:45:06,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:45:06,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:06,826 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:45:06,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:45:06,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:45:06,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:45:06,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:06,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:45:06,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:45:06,827 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:45:06,827 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:45:06,827 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:45:06,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:45:06,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:45:06,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:45:06,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:45:06,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:45:06,828 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_7a025391-ab36-4aa8-afb4-40d6e8701bda/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 ! overflow) ) 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 -> 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b [2024-11-28 04:45:07,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:45:07,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:45:07,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:45:07,183 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:45:07,184 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:45:07,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i [2024-11-28 04:45:10,168 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/data/7c14c1f9c/bbb2f4f89b4542488d69429ba29256a1/FLAG6a7e536b3 [2024-11-28 04:45:10,594 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:45:10,595 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i [2024-11-28 04:45:10,618 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/data/7c14c1f9c/bbb2f4f89b4542488d69429ba29256a1/FLAG6a7e536b3 [2024-11-28 04:45:10,649 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/data/7c14c1f9c/bbb2f4f89b4542488d69429ba29256a1 [2024-11-28 04:45:10,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:45:10,654 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:45:10,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:45:10,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:45:10,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:45:10,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:10" (1/1) ... [2024-11-28 04:45:10,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b445953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:10, skipping insertion in model container [2024-11-28 04:45:10,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:10" (1/1) ... [2024-11-28 04:45:10,731 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:45:11,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:45:11,334 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:45:11,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:45:11,450 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:45:11,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11 WrapperNode [2024-11-28 04:45:11,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:45:11,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:45:11,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:45:11,453 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:45:11,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (1/1) ... [2024-11-28 04:45:11,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (1/1) ... [2024-11-28 04:45:11,496 INFO L138 Inliner]: procedures = 266, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2024-11-28 04:45:11,496 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:45:11,497 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:45:11,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:45:11,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:45:11,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (1/1) ... [2024-11-28 04:45:11,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (1/1) ... [2024-11-28 04:45:11,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (1/1) ... [2024-11-28 04:45:11,526 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [5]. The 0 writes are split as follows [0]. [2024-11-28 04:45:11,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (1/1) ... [2024-11-28 04:45:11,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (1/1) ... [2024-11-28 04:45:11,531 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (1/1) ... [2024-11-28 04:45:11,532 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (1/1) ... [2024-11-28 04:45:11,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (1/1) ... [2024-11-28 04:45:11,534 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (1/1) ... [2024-11-28 04:45:11,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (1/1) ... [2024-11-28 04:45:11,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:45:11,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:45:11,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:45:11,538 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:45:11,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (1/1) ... [2024-11-28 04:45:11,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:11,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:11,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:45:11,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:45:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 04:45:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 04:45:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:45:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 04:45:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 04:45:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:45:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:45:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:45:11,597 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 04:45:11,755 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:45:11,757 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:45:11,975 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:45:11,976 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:45:12,094 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:45:12,094 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:45:12,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:12 BoogieIcfgContainer [2024-11-28 04:45:12,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:45:12,098 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:45:12,098 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:45:12,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:45:12,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:45:10" (1/3) ... [2024-11-28 04:45:12,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9ddbb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:45:12, skipping insertion in model container [2024-11-28 04:45:12,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:11" (2/3) ... [2024-11-28 04:45:12,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9ddbb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:45:12, skipping insertion in model container [2024-11-28 04:45:12,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:12" (3/3) ... [2024-11-28 04:45:12,106 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_07-ps_nr.i [2024-11-28 04:45:12,123 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:45:12,125 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_07-ps_nr.i that has 2 procedures, 26 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-28 04:45:12,125 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:45:12,195 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:45:12,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 28 transitions, 60 flow [2024-11-28 04:45:12,321 INFO L124 PetriNetUnfolderBase]: 3/27 cut-off events. [2024-11-28 04:45:12,327 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:45:12,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 27 events. 3/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-11-28 04:45:12,337 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 28 transitions, 60 flow [2024-11-28 04:45:12,341 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 27 transitions, 57 flow [2024-11-28 04:45:12,358 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:45:12,382 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;@4499579a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:45:12,383 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 04:45:12,395 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:45:12,396 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2024-11-28 04:45:12,396 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:45:12,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:45:12,397 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:45:12,401 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:45:12,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:12,414 INFO L85 PathProgramCache]: Analyzing trace with hash 955312178, now seen corresponding path program 1 times [2024-11-28 04:45:12,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:12,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980771596] [2024-11-28 04:45:12,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:12,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:12,734 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 04:45:12,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:12,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980771596] [2024-11-28 04:45:12,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980771596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:12,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:12,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:45:12,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327357046] [2024-11-28 04:45:12,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:12,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:45:12,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:12,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:45:12,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:45:12,805 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 28 [2024-11-28 04:45:12,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 27 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 04:45:12,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:45:12,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 28 [2024-11-28 04:45:12,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:45:13,009 INFO L124 PetriNetUnfolderBase]: 91/219 cut-off events. [2024-11-28 04:45:13,010 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:45:13,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 219 events. 91/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 953 event pairs, 31 based on Foata normal form. 11/200 useless extension candidates. Maximal degree in co-relation 391. Up to 81 conditions per place. [2024-11-28 04:45:13,013 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 29 selfloop transitions, 6 changer transitions 4/49 dead transitions. [2024-11-28 04:45:13,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 49 transitions, 179 flow [2024-11-28 04:45:13,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:45:13,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:45:13,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 96 transitions. [2024-11-28 04:45:13,027 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2024-11-28 04:45:13,029 INFO L175 Difference]: Start difference. First operand has 28 places, 27 transitions, 57 flow. Second operand 5 states and 96 transitions. [2024-11-28 04:45:13,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 49 transitions, 179 flow [2024-11-28 04:45:13,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 49 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:45:13,040 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 94 flow [2024-11-28 04:45:13,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=94, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-11-28 04:45:13,047 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 7 predicate places. [2024-11-28 04:45:13,047 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 94 flow [2024-11-28 04:45:13,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 04:45:13,049 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:45:13,050 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:13,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:45:13,050 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:45:13,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:13,051 INFO L85 PathProgramCache]: Analyzing trace with hash -459158278, now seen corresponding path program 1 times [2024-11-28 04:45:13,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:13,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800756733] [2024-11-28 04:45:13,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:13,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:13,105 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 04:45:13,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:13,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800756733] [2024-11-28 04:45:13,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800756733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:13,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:13,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:45:13,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605764386] [2024-11-28 04:45:13,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:13,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:45:13,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:13,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:45:13,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:13,118 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 28 [2024-11-28 04:45:13,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 04:45:13,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:45:13,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 28 [2024-11-28 04:45:13,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:45:13,243 INFO L124 PetriNetUnfolderBase]: 91/241 cut-off events. [2024-11-28 04:45:13,243 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-28 04:45:13,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 241 events. 91/241 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1108 event pairs, 49 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 530. Up to 135 conditions per place. [2024-11-28 04:45:13,246 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 26 selfloop transitions, 4 changer transitions 3/41 dead transitions. [2024-11-28 04:45:13,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 192 flow [2024-11-28 04:45:13,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:45:13,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:45:13,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-11-28 04:45:13,247 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-28 04:45:13,247 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 94 flow. Second operand 3 states and 56 transitions. [2024-11-28 04:45:13,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 192 flow [2024-11-28 04:45:13,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 192 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:45:13,251 INFO L231 Difference]: Finished difference. Result has 39 places, 33 transitions, 126 flow [2024-11-28 04:45:13,251 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2024-11-28 04:45:13,252 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 11 predicate places. [2024-11-28 04:45:13,252 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 126 flow [2024-11-28 04:45:13,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 04:45:13,252 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:45:13,252 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:13,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:45:13,253 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:45:13,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:13,253 INFO L85 PathProgramCache]: Analyzing trace with hash -450093366, now seen corresponding path program 1 times [2024-11-28 04:45:13,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:13,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669410997] [2024-11-28 04:45:13,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:13,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:13,357 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 04:45:13,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:13,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669410997] [2024-11-28 04:45:13,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669410997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:13,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:13,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:45:13,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746791969] [2024-11-28 04:45:13,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:13,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:45:13,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:13,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:45:13,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:45:13,367 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 28 [2024-11-28 04:45:13,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 04:45:13,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:45:13,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 28 [2024-11-28 04:45:13,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:45:13,562 INFO L124 PetriNetUnfolderBase]: 67/191 cut-off events. [2024-11-28 04:45:13,563 INFO L125 PetriNetUnfolderBase]: For 133/144 co-relation queries the response was YES. [2024-11-28 04:45:13,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 191 events. 67/191 cut-off events. For 133/144 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 852 event pairs, 21 based on Foata normal form. 17/205 useless extension candidates. Maximal degree in co-relation 476. Up to 99 conditions per place. [2024-11-28 04:45:13,567 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 27 selfloop transitions, 5 changer transitions 8/50 dead transitions. [2024-11-28 04:45:13,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 50 transitions, 256 flow [2024-11-28 04:45:13,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:45:13,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:45:13,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 93 transitions. [2024-11-28 04:45:13,570 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6642857142857143 [2024-11-28 04:45:13,570 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 126 flow. Second operand 5 states and 93 transitions. [2024-11-28 04:45:13,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 50 transitions, 256 flow [2024-11-28 04:45:13,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 50 transitions, 238 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:45:13,578 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 107 flow [2024-11-28 04:45:13,578 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=107, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2024-11-28 04:45:13,579 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2024-11-28 04:45:13,579 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 107 flow [2024-11-28 04:45:13,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 04:45:13,580 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:45:13,580 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:13,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:45:13,582 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:45:13,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:13,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1350540546, now seen corresponding path program 1 times [2024-11-28 04:45:13,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:13,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471122120] [2024-11-28 04:45:13,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:13,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:13,687 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 04:45:13,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:13,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471122120] [2024-11-28 04:45:13,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471122120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:13,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:13,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:45:13,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270890789] [2024-11-28 04:45:13,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:13,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:45:13,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:13,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:45:13,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:45:13,701 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 28 [2024-11-28 04:45:13,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 107 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 04:45:13,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:45:13,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 28 [2024-11-28 04:45:13,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:45:13,807 INFO L124 PetriNetUnfolderBase]: 49/148 cut-off events. [2024-11-28 04:45:13,808 INFO L125 PetriNetUnfolderBase]: For 120/122 co-relation queries the response was YES. [2024-11-28 04:45:13,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 148 events. 49/148 cut-off events. For 120/122 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 638 event pairs, 17 based on Foata normal form. 7/151 useless extension candidates. Maximal degree in co-relation 350. Up to 44 conditions per place. [2024-11-28 04:45:13,811 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 24 selfloop transitions, 7 changer transitions 2/43 dead transitions. [2024-11-28 04:45:13,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 43 transitions, 217 flow [2024-11-28 04:45:13,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:45:13,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:45:13,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 87 transitions. [2024-11-28 04:45:13,816 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2024-11-28 04:45:13,817 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 107 flow. Second operand 5 states and 87 transitions. [2024-11-28 04:45:13,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 43 transitions, 217 flow [2024-11-28 04:45:13,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 198 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-28 04:45:13,821 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 141 flow [2024-11-28 04:45:13,822 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=141, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2024-11-28 04:45:13,823 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 16 predicate places. [2024-11-28 04:45:13,824 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 141 flow [2024-11-28 04:45:13,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 04:45:13,824 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:45:13,824 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:13,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:45:13,825 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:45:13,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:13,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1082916209, now seen corresponding path program 1 times [2024-11-28 04:45:13,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:13,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216913435] [2024-11-28 04:45:13,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:13,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:13,909 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 04:45:13,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:13,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216913435] [2024-11-28 04:45:13,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216913435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:13,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:13,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:45:13,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853009525] [2024-11-28 04:45:13,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:13,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:45:13,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:13,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:45:13,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:45:13,919 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 28 [2024-11-28 04:45:13,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 04:45:13,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:45:13,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 28 [2024-11-28 04:45:13,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:45:14,018 INFO L124 PetriNetUnfolderBase]: 43/139 cut-off events. [2024-11-28 04:45:14,019 INFO L125 PetriNetUnfolderBase]: For 138/140 co-relation queries the response was YES. [2024-11-28 04:45:14,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 139 events. 43/139 cut-off events. For 138/140 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 596 event pairs, 16 based on Foata normal form. 7/142 useless extension candidates. Maximal degree in co-relation 346. Up to 52 conditions per place. [2024-11-28 04:45:14,020 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 22 selfloop transitions, 7 changer transitions 4/43 dead transitions. [2024-11-28 04:45:14,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 43 transitions, 232 flow [2024-11-28 04:45:14,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:45:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:45:14,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2024-11-28 04:45:14,023 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6357142857142857 [2024-11-28 04:45:14,023 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 141 flow. Second operand 5 states and 89 transitions. [2024-11-28 04:45:14,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 43 transitions, 232 flow [2024-11-28 04:45:14,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 229 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:45:14,028 INFO L231 Difference]: Finished difference. Result has 47 places, 30 transitions, 139 flow [2024-11-28 04:45:14,029 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=139, PETRI_PLACES=47, PETRI_TRANSITIONS=30} [2024-11-28 04:45:14,030 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 19 predicate places. [2024-11-28 04:45:14,031 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 30 transitions, 139 flow [2024-11-28 04:45:14,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 04:45:14,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:45:14,032 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:14,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:45:14,032 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:45:14,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:14,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1316296367, now seen corresponding path program 1 times [2024-11-28 04:45:14,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:14,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56878002] [2024-11-28 04:45:14,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:14,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:14,183 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 04:45:14,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:14,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56878002] [2024-11-28 04:45:14,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56878002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:14,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:14,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:45:14,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285962663] [2024-11-28 04:45:14,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:14,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:45:14,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:14,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:45:14,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:14,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2024-11-28 04:45:14,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 30 transitions, 139 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 04:45:14,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:45:14,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2024-11-28 04:45:14,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:45:14,242 INFO L124 PetriNetUnfolderBase]: 16/82 cut-off events. [2024-11-28 04:45:14,243 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2024-11-28 04:45:14,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 82 events. 16/82 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 245 event pairs, 4 based on Foata normal form. 10/90 useless extension candidates. Maximal degree in co-relation 201. Up to 40 conditions per place. [2024-11-28 04:45:14,244 INFO L140 encePairwiseOnDemand]: 24/28 looper letters, 16 selfloop transitions, 4 changer transitions 3/34 dead transitions. [2024-11-28 04:45:14,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 34 transitions, 199 flow [2024-11-28 04:45:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:45:14,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:45:14,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-11-28 04:45:14,245 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-28 04:45:14,245 INFO L175 Difference]: Start difference. First operand has 47 places, 30 transitions, 139 flow. Second operand 3 states and 60 transitions. [2024-11-28 04:45:14,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 34 transitions, 199 flow [2024-11-28 04:45:14,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 34 transitions, 175 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-28 04:45:14,247 INFO L231 Difference]: Finished difference. Result has 44 places, 28 transitions, 117 flow [2024-11-28 04:45:14,247 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=44, PETRI_TRANSITIONS=28} [2024-11-28 04:45:14,248 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 16 predicate places. [2024-11-28 04:45:14,249 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 28 transitions, 117 flow [2024-11-28 04:45:14,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 04:45:14,249 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:45:14,249 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:14,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:45:14,249 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:45:14,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:14,250 INFO L85 PathProgramCache]: Analyzing trace with hash -899599102, now seen corresponding path program 1 times [2024-11-28 04:45:14,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:14,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721489303] [2024-11-28 04:45:14,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:14,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:14,394 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 04:45:14,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:14,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721489303] [2024-11-28 04:45:14,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721489303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:14,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:14,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:45:14,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358557] [2024-11-28 04:45:14,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:14,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:45:14,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:14,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:45:14,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:45:14,417 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2024-11-28 04:45:14,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 28 transitions, 117 flow. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 04:45:14,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:45:14,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2024-11-28 04:45:14,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:45:14,537 INFO L124 PetriNetUnfolderBase]: 19/81 cut-off events. [2024-11-28 04:45:14,537 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-28 04:45:14,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 81 events. 19/81 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 239 event pairs, 8 based on Foata normal form. 2/82 useless extension candidates. Maximal degree in co-relation 205. Up to 24 conditions per place. [2024-11-28 04:45:14,538 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 21 selfloop transitions, 6 changer transitions 3/37 dead transitions. [2024-11-28 04:45:14,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 37 transitions, 202 flow [2024-11-28 04:45:14,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:45:14,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:45:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 94 transitions. [2024-11-28 04:45:14,540 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47959183673469385 [2024-11-28 04:45:14,540 INFO L175 Difference]: Start difference. First operand has 44 places, 28 transitions, 117 flow. Second operand 7 states and 94 transitions. [2024-11-28 04:45:14,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 37 transitions, 202 flow [2024-11-28 04:45:14,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 37 transitions, 188 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-28 04:45:14,543 INFO L231 Difference]: Finished difference. Result has 47 places, 27 transitions, 117 flow [2024-11-28 04:45:14,543 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=117, PETRI_PLACES=47, PETRI_TRANSITIONS=27} [2024-11-28 04:45:14,544 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 19 predicate places. [2024-11-28 04:45:14,546 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 27 transitions, 117 flow [2024-11-28 04:45:14,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 04:45:14,547 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:45:14,547 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:14,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:45:14,547 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:45:14,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:14,548 INFO L85 PathProgramCache]: Analyzing trace with hash -245857133, now seen corresponding path program 1 times [2024-11-28 04:45:14,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:14,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16185691] [2024-11-28 04:45:14,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:14,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:14,665 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 04:45:14,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:14,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16185691] [2024-11-28 04:45:14,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16185691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:14,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:14,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:45:14,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515782649] [2024-11-28 04:45:14,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:14,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:45:14,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:14,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:45:14,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:45:14,689 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2024-11-28 04:45:14,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 27 transitions, 117 flow. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 04:45:14,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:45:14,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2024-11-28 04:45:14,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:45:14,814 INFO L124 PetriNetUnfolderBase]: 18/77 cut-off events. [2024-11-28 04:45:14,814 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-11-28 04:45:14,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 77 events. 18/77 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 223 event pairs, 5 based on Foata normal form. 2/78 useless extension candidates. Maximal degree in co-relation 186. Up to 24 conditions per place. [2024-11-28 04:45:14,815 INFO L140 encePairwiseOnDemand]: 20/28 looper letters, 12 selfloop transitions, 7 changer transitions 16/40 dead transitions. [2024-11-28 04:45:14,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 40 transitions, 219 flow [2024-11-28 04:45:14,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:45:14,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:45:14,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 124 transitions. [2024-11-28 04:45:14,816 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284 [2024-11-28 04:45:14,817 INFO L175 Difference]: Start difference. First operand has 47 places, 27 transitions, 117 flow. Second operand 10 states and 124 transitions. [2024-11-28 04:45:14,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 40 transitions, 219 flow [2024-11-28 04:45:14,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 40 transitions, 201 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-28 04:45:14,819 INFO L231 Difference]: Finished difference. Result has 49 places, 21 transitions, 86 flow [2024-11-28 04:45:14,819 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=86, PETRI_PLACES=49, PETRI_TRANSITIONS=21} [2024-11-28 04:45:14,820 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 21 predicate places. [2024-11-28 04:45:14,820 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 21 transitions, 86 flow [2024-11-28 04:45:14,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 04:45:14,820 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:45:14,820 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:14,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:45:14,821 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:45:14,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:14,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1010660072, now seen corresponding path program 1 times [2024-11-28 04:45:14,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:14,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733677858] [2024-11-28 04:45:14,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:14,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:14,898 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 04:45:14,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:14,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733677858] [2024-11-28 04:45:14,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733677858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:14,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:14,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:45:14,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142735271] [2024-11-28 04:45:14,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:14,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:45:14,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:14,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:45:14,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:45:14,917 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2024-11-28 04:45:14,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 21 transitions, 86 flow. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 04:45:14,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:45:14,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2024-11-28 04:45:14,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:45:15,003 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2024-11-28 04:45:15,003 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-28 04:45:15,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 29 events. 4/29 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 1 based on Foata normal form. 2/30 useless extension candidates. Maximal degree in co-relation 66. Up to 8 conditions per place. [2024-11-28 04:45:15,004 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 10 selfloop transitions, 7 changer transitions 1/23 dead transitions. [2024-11-28 04:45:15,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 23 transitions, 125 flow [2024-11-28 04:45:15,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:45:15,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 04:45:15,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 92 transitions. [2024-11-28 04:45:15,005 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2024-11-28 04:45:15,005 INFO L175 Difference]: Start difference. First operand has 49 places, 21 transitions, 86 flow. Second operand 8 states and 92 transitions. [2024-11-28 04:45:15,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 23 transitions, 125 flow [2024-11-28 04:45:15,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 23 transitions, 99 flow, removed 2 selfloop flow, removed 10 redundant places. [2024-11-28 04:45:15,007 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 67 flow [2024-11-28 04:45:15,007 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=67, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2024-11-28 04:45:15,008 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 4 predicate places. [2024-11-28 04:45:15,008 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 67 flow [2024-11-28 04:45:15,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 04:45:15,008 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:45:15,008 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:15,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:45:15,009 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:45:15,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:15,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1101046572, now seen corresponding path program 1 times [2024-11-28 04:45:15,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:15,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095149902] [2024-11-28 04:45:15,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:15,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:15,122 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 04:45:15,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:15,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095149902] [2024-11-28 04:45:15,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095149902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:15,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:15,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:45:15,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458885703] [2024-11-28 04:45:15,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:15,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:45:15,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:15,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:45:15,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:45:15,141 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2024-11-28 04:45:15,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 67 flow. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 04:45:15,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:45:15,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2024-11-28 04:45:15,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:45:15,230 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2024-11-28 04:45:15,230 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-28 04:45:15,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 26 events. 3/26 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 1 based on Foata normal form. 2/27 useless extension candidates. Maximal degree in co-relation 52. Up to 8 conditions per place. [2024-11-28 04:45:15,231 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2024-11-28 04:45:15,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 21 transitions, 101 flow [2024-11-28 04:45:15,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:45:15,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 04:45:15,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 90 transitions. [2024-11-28 04:45:15,233 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4017857142857143 [2024-11-28 04:45:15,233 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 67 flow. Second operand 8 states and 90 transitions. [2024-11-28 04:45:15,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 21 transitions, 101 flow [2024-11-28 04:45:15,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 21 transitions, 90 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-28 04:45:15,234 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2024-11-28 04:45:15,234 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2024-11-28 04:45:15,235 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 4 predicate places. [2024-11-28 04:45:15,235 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2024-11-28 04:45:15,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 04:45:15,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2024-11-28 04:45:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2024-11-28 04:45:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-28 04:45:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2024-11-28 04:45:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2024-11-28 04:45:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2024-11-28 04:45:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2024-11-28 04:45:15,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:45:15,241 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:15,249 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 04:45:15,250 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:45:15,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:45:15 BasicIcfg [2024-11-28 04:45:15,255 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:45:15,256 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:45:15,256 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:45:15,256 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:45:15,257 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:12" (3/4) ... [2024-11-28 04:45:15,259 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:45:15,262 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-28 04:45:15,268 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-28 04:45:15,268 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-28 04:45:15,268 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:45:15,353 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:45:15,353 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:45:15,354 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:45:15,355 INFO L158 Benchmark]: Toolchain (without parser) took 4701.06ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 77.7MB in the end (delta: 15.5MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-11-28 04:45:15,356 INFO L158 Benchmark]: CDTParser took 2.03ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:45:15,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 795.16ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 65.6MB in the end (delta: 27.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:45:15,357 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.02ms. Allocated memory is still 117.4MB. Free memory was 65.6MB in the beginning and 63.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:45:15,357 INFO L158 Benchmark]: Boogie Preprocessor took 40.48ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 62.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:45:15,358 INFO L158 Benchmark]: RCFGBuilder took 556.79ms. Allocated memory is still 117.4MB. Free memory was 62.0MB in the beginning and 44.2MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:45:15,358 INFO L158 Benchmark]: TraceAbstraction took 3157.65ms. Allocated memory is still 117.4MB. Free memory was 43.5MB in the beginning and 82.3MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:45:15,359 INFO L158 Benchmark]: Witness Printer took 98.13ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 77.7MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:45:15,362 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.03ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 795.16ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 65.6MB in the end (delta: 27.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.02ms. Allocated memory is still 117.4MB. Free memory was 65.6MB in the beginning and 63.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.48ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 62.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 556.79ms. Allocated memory is still 117.4MB. Free memory was 62.0MB in the beginning and 44.2MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3157.65ms. Allocated memory is still 117.4MB. Free memory was 43.5MB in the beginning and 82.3MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 98.13ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 77.7MB 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: 945]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 945]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 252 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 213 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 591 IncrementalHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 20 mSDtfsCounter, 591 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=4, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 04:45:15,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a025391-ab36-4aa8-afb4-40d6e8701bda/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE