./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:27:43,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:27:43,210 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:27:43,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:27:43,220 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:27:43,270 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:27:43,271 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:27:43,271 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:27:43,279 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:27:43,279 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:27:43,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:27:43,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:27:43,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:27:43,280 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:27:43,280 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:27:43,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:27:43,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:27:43,280 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:27:43,280 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:27:43,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:27:43,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:27:43,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:27:43,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:27:43,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:27:43,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:27:43,281 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:27:43,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:27:43,281 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:27:43,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:27:43,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:27:43,282 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:27:43,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:27:43,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:27:43,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:27:43,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:27:43,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:27:43,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:27:43,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:27:43,286 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:27:43,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:27:43,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:27:43,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:27:43,287 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_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 [2024-11-13 13:27:43,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:27:43,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:27:43,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:27:43,643 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:27:43,643 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:27:43,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i Unable to find full path for "g++" [2024-11-13 13:27:45,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:27:46,092 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:27:46,093 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2024-11-13 13:27:46,120 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/data/4bd0aa3ef/dd26ecb6a3eb4f0094b76007d7e81d29/FLAGa53edcf0d [2024-11-13 13:27:46,157 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/data/4bd0aa3ef/dd26ecb6a3eb4f0094b76007d7e81d29 [2024-11-13 13:27:46,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:27:46,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:27:46,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:27:46,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:27:46,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:27:46,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb2b1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46, skipping insertion in model container [2024-11-13 13:27:46,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,226 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:27:46,747 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2024-11-13 13:27:46,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:27:46,780 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:27:46,857 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2024-11-13 13:27:46,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:27:46,934 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:27:46,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46 WrapperNode [2024-11-13 13:27:46,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:27:46,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:27:46,938 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:27:46,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:27:46,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:47,012 INFO L138 Inliner]: procedures = 243, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 272 [2024-11-13 13:27:47,013 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:27:47,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:27:47,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:27:47,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:27:47,026 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:47,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:47,037 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:47,075 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2024-11-13 13:27:47,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:47,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:47,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:47,113 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:47,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:47,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:47,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:27:47,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:27:47,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:27:47,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:27:47,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:47,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:27:47,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:47,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:47,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:27:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 13:27:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 13:27:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 13:27:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 13:27:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 13:27:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 13:27:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-13 13:27:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-13 13:27:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 13:27:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:27:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:27:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 13:27:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 13:27:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:27:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:27:47,209 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 13:27:47,487 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:27:47,489 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:27:48,078 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 13:27:48,079 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:27:49,766 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:27:49,767 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-13 13:27:49,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:27:49 BoogieIcfgContainer [2024-11-13 13:27:49,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:27:49,772 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:27:49,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:27:49,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:27:49,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:27:46" (1/3) ... [2024-11-13 13:27:49,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571d8db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:27:49, skipping insertion in model container [2024-11-13 13:27:49,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (2/3) ... [2024-11-13 13:27:49,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571d8db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:27:49, skipping insertion in model container [2024-11-13 13:27:49,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:27:49" (3/3) ... [2024-11-13 13:27:49,784 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2024-11-13 13:27:49,806 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:27:49,808 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG arithmetic_prog_ok.i that has 3 procedures, 33 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-11-13 13:27:49,809 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 13:27:49,917 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 13:27:49,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 38 transitions, 90 flow [2024-11-13 13:27:50,067 INFO L124 PetriNetUnfolderBase]: 6/36 cut-off events. [2024-11-13 13:27:50,071 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 13:27:50,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 36 events. 6/36 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2024-11-13 13:27:50,076 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 38 transitions, 90 flow [2024-11-13 13:27:50,082 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 32 transitions, 76 flow [2024-11-13 13:27:50,094 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:27:50,120 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;@7f574a5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:27:50,120 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-13 13:27:50,184 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:27:50,184 INFO L124 PetriNetUnfolderBase]: 4/31 cut-off events. [2024-11-13 13:27:50,185 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 13:27:50,185 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:27:50,186 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:50,187 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-13 13:27:50,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:50,193 INFO L85 PathProgramCache]: Analyzing trace with hash 95786114, now seen corresponding path program 1 times [2024-11-13 13:27:50,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:50,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353404879] [2024-11-13 13:27:50,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:50,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:51,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:51,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:51,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353404879] [2024-11-13 13:27:51,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353404879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:27:51,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:27:51,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:27:51,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836297264] [2024-11-13 13:27:51,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:51,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:27:51,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:51,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:27:51,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:27:51,544 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-13 13:27:51,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:27:51,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:27:51,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-13 13:27:51,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:27:51,987 INFO L124 PetriNetUnfolderBase]: 440/782 cut-off events. [2024-11-13 13:27:51,987 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-13 13:27:51,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1502 conditions, 782 events. 440/782 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3651 event pairs, 173 based on Foata normal form. 18/772 useless extension candidates. Maximal degree in co-relation 1442. Up to 418 conditions per place. [2024-11-13 13:27:52,000 INFO L140 encePairwiseOnDemand]: 35/38 looper letters, 38 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2024-11-13 13:27:52,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 49 transitions, 193 flow [2024-11-13 13:27:52,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:27:52,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:27:52,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-13 13:27:52,016 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7017543859649122 [2024-11-13 13:27:52,018 INFO L175 Difference]: Start difference. First operand has 35 places, 32 transitions, 76 flow. Second operand 3 states and 80 transitions. [2024-11-13 13:27:52,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 49 transitions, 193 flow [2024-11-13 13:27:52,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 49 transitions, 183 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-13 13:27:52,032 INFO L231 Difference]: Finished difference. Result has 34 places, 33 transitions, 80 flow [2024-11-13 13:27:52,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=34, PETRI_TRANSITIONS=33} [2024-11-13 13:27:52,039 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2024-11-13 13:27:52,040 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 33 transitions, 80 flow [2024-11-13 13:27:52,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:27:52,040 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:27:52,040 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:52,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:27:52,041 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-13 13:27:52,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:52,042 INFO L85 PathProgramCache]: Analyzing trace with hash -895783000, now seen corresponding path program 1 times [2024-11-13 13:27:52,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:52,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664011982] [2024-11-13 13:27:52,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:52,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:52,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:52,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:52,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664011982] [2024-11-13 13:27:52,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664011982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:27:52,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:27:52,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:27:52,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57908743] [2024-11-13 13:27:52,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:52,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:27:52,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:52,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:27:52,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:27:52,850 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-13 13:27:52,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 33 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-11-13 13:27:52,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:27:52,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-13 13:27:52,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:27:53,267 INFO L124 PetriNetUnfolderBase]: 741/1322 cut-off events. [2024-11-13 13:27:53,270 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-11-13 13:27:53,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2609 conditions, 1322 events. 741/1322 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6710 event pairs, 300 based on Foata normal form. 29/1320 useless extension candidates. Maximal degree in co-relation 964. Up to 696 conditions per place. [2024-11-13 13:27:53,289 INFO L140 encePairwiseOnDemand]: 35/38 looper letters, 39 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-11-13 13:27:53,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 50 transitions, 207 flow [2024-11-13 13:27:53,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:27:53,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:27:53,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2024-11-13 13:27:53,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6929824561403509 [2024-11-13 13:27:53,292 INFO L175 Difference]: Start difference. First operand has 34 places, 33 transitions, 80 flow. Second operand 3 states and 79 transitions. [2024-11-13 13:27:53,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 50 transitions, 207 flow [2024-11-13 13:27:53,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 50 transitions, 203 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 13:27:53,296 INFO L231 Difference]: Finished difference. Result has 36 places, 34 transitions, 90 flow [2024-11-13 13:27:53,297 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=36, PETRI_TRANSITIONS=34} [2024-11-13 13:27:53,298 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2024-11-13 13:27:53,299 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 90 flow [2024-11-13 13:27:53,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-11-13 13:27:53,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:27:53,299 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:53,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:27:53,300 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-13 13:27:53,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:53,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1713704984, now seen corresponding path program 1 times [2024-11-13 13:27:53,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:53,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14439903] [2024-11-13 13:27:53,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:53,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:54,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:54,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14439903] [2024-11-13 13:27:54,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14439903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:27:54,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:27:54,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:27:54,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344822274] [2024-11-13 13:27:54,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:54,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:27:54,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:54,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:27:54,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:27:54,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-13 13:27:54,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-13 13:27:54,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:27:54,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-13 13:27:54,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:27:54,437 INFO L124 PetriNetUnfolderBase]: 427/899 cut-off events. [2024-11-13 13:27:54,437 INFO L125 PetriNetUnfolderBase]: For 192/192 co-relation queries the response was YES. [2024-11-13 13:27:54,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1867 conditions, 899 events. 427/899 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4308 event pairs, 182 based on Foata normal form. 64/962 useless extension candidates. Maximal degree in co-relation 632. Up to 372 conditions per place. [2024-11-13 13:27:54,446 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 29 selfloop transitions, 8 changer transitions 0/46 dead transitions. [2024-11-13 13:27:54,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 208 flow [2024-11-13 13:27:54,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:27:54,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:27:54,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-11-13 13:27:54,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-13 13:27:54,450 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 90 flow. Second operand 3 states and 76 transitions. [2024-11-13 13:27:54,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 208 flow [2024-11-13 13:27:54,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 46 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 13:27:54,452 INFO L231 Difference]: Finished difference. Result has 37 places, 34 transitions, 104 flow [2024-11-13 13:27:54,453 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=37, PETRI_TRANSITIONS=34} [2024-11-13 13:27:54,453 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2024-11-13 13:27:54,454 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 34 transitions, 104 flow [2024-11-13 13:27:54,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-13 13:27:54,455 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:27:54,455 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:54,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:27:54,455 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-13 13:27:54,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:54,456 INFO L85 PathProgramCache]: Analyzing trace with hash 875895090, now seen corresponding path program 2 times [2024-11-13 13:27:54,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:54,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230777827] [2024-11-13 13:27:54,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:54,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:54,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:54,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230777827] [2024-11-13 13:27:54,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230777827] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:54,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262718682] [2024-11-13 13:27:54,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:27:54,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:54,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:54,926 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:54,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:27:55,780 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:27:55,780 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:27:55,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:27:55,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:55,863 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:27:55,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:55,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262718682] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:27:55,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:27:55,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-13 13:27:55,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636561560] [2024-11-13 13:27:55,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:27:55,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:27:55,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:55,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:27:55,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:27:55,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-11-13 13:27:55,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 104 flow. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 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) [2024-11-13 13:27:55,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:27:55,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-11-13 13:27:55,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:27:56,894 INFO L124 PetriNetUnfolderBase]: 1416/2753 cut-off events. [2024-11-13 13:27:56,894 INFO L125 PetriNetUnfolderBase]: For 892/892 co-relation queries the response was YES. [2024-11-13 13:27:56,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6520 conditions, 2753 events. 1416/2753 cut-off events. For 892/892 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 14867 event pairs, 77 based on Foata normal form. 181/2926 useless extension candidates. Maximal degree in co-relation 1693. Up to 476 conditions per place. [2024-11-13 13:27:56,914 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 189 selfloop transitions, 33 changer transitions 0/230 dead transitions. [2024-11-13 13:27:56,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 230 transitions, 1216 flow [2024-11-13 13:27:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 13:27:56,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-13 13:27:56,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 428 transitions. [2024-11-13 13:27:56,917 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7039473684210527 [2024-11-13 13:27:56,917 INFO L175 Difference]: Start difference. First operand has 37 places, 34 transitions, 104 flow. Second operand 16 states and 428 transitions. [2024-11-13 13:27:56,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 230 transitions, 1216 flow [2024-11-13 13:27:56,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 230 transitions, 1108 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 13:27:56,932 INFO L231 Difference]: Finished difference. Result has 64 places, 62 transitions, 370 flow [2024-11-13 13:27:56,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=370, PETRI_PLACES=64, PETRI_TRANSITIONS=62} [2024-11-13 13:27:56,933 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 29 predicate places. [2024-11-13 13:27:56,934 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 62 transitions, 370 flow [2024-11-13 13:27:56,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 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) [2024-11-13 13:27:56,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:27:56,935 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:56,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:57,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:57,136 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-13 13:27:57,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:57,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1002827958, now seen corresponding path program 3 times [2024-11-13 13:27:57,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:57,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994515547] [2024-11-13 13:27:57,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:57,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,738 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:27:57,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:57,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994515547] [2024-11-13 13:27:57,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994515547] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:57,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800846999] [2024-11-13 13:27:57,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 13:27:57,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:57,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:57,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:57,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:27:58,576 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 13:27:58,576 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:27:58,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:27:58,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:58,635 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:27:58,637 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:27:58,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800846999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:27:58,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:27:58,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-13 13:27:58,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314260075] [2024-11-13 13:27:58,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:58,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:27:58,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:58,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:27:58,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:27:58,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-11-13 13:27:58,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 62 transitions, 370 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-13 13:27:58,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:27:58,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-11-13 13:27:58,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:27:59,265 INFO L124 PetriNetUnfolderBase]: 1486/3019 cut-off events. [2024-11-13 13:27:59,265 INFO L125 PetriNetUnfolderBase]: For 7873/7873 co-relation queries the response was YES. [2024-11-13 13:27:59,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9218 conditions, 3019 events. 1486/3019 cut-off events. For 7873/7873 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 17249 event pairs, 375 based on Foata normal form. 0/2851 useless extension candidates. Maximal degree in co-relation 7210. Up to 1378 conditions per place. [2024-11-13 13:27:59,302 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 84 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2024-11-13 13:27:59,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 98 transitions, 797 flow [2024-11-13 13:27:59,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:27:59,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:27:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2024-11-13 13:27:59,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5723684210526315 [2024-11-13 13:27:59,304 INFO L175 Difference]: Start difference. First operand has 64 places, 62 transitions, 370 flow. Second operand 4 states and 87 transitions. [2024-11-13 13:27:59,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 98 transitions, 797 flow [2024-11-13 13:27:59,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 98 transitions, 718 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-13 13:27:59,354 INFO L231 Difference]: Finished difference. Result has 67 places, 64 transitions, 351 flow [2024-11-13 13:27:59,354 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=351, PETRI_PLACES=67, PETRI_TRANSITIONS=64} [2024-11-13 13:27:59,355 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 32 predicate places. [2024-11-13 13:27:59,355 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 64 transitions, 351 flow [2024-11-13 13:27:59,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-13 13:27:59,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:27:59,356 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:59,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:27:59,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:59,558 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-13 13:27:59,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:59,558 INFO L85 PathProgramCache]: Analyzing trace with hash -263659990, now seen corresponding path program 4 times [2024-11-13 13:27:59,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:59,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773276914] [2024-11-13 13:27:59,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:59,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,120 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-13 13:28:00,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:00,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773276914] [2024-11-13 13:28:00,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773276914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:00,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:00,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:28:00,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879151926] [2024-11-13 13:28:00,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:00,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:28:00,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:00,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:28:00,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:28:00,128 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-11-13 13:28:00,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 64 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-11-13 13:28:00,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:28:00,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-11-13 13:28:00,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:28:00,553 INFO L124 PetriNetUnfolderBase]: 1021/2116 cut-off events. [2024-11-13 13:28:00,554 INFO L125 PetriNetUnfolderBase]: For 6123/6123 co-relation queries the response was YES. [2024-11-13 13:28:00,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6980 conditions, 2116 events. 1021/2116 cut-off events. For 6123/6123 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 11349 event pairs, 265 based on Foata normal form. 0/2026 useless extension candidates. Maximal degree in co-relation 5801. Up to 1446 conditions per place. [2024-11-13 13:28:00,578 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 64 selfloop transitions, 3 changer transitions 2/79 dead transitions. [2024-11-13 13:28:00,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 79 transitions, 567 flow [2024-11-13 13:28:00,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:28:00,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:28:00,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-13 13:28:00,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6403508771929824 [2024-11-13 13:28:00,581 INFO L175 Difference]: Start difference. First operand has 67 places, 64 transitions, 351 flow. Second operand 3 states and 73 transitions. [2024-11-13 13:28:00,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 79 transitions, 567 flow [2024-11-13 13:28:00,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 79 transitions, 566 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 13:28:00,607 INFO L231 Difference]: Finished difference. Result has 70 places, 63 transitions, 359 flow [2024-11-13 13:28:00,608 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=359, PETRI_PLACES=70, PETRI_TRANSITIONS=63} [2024-11-13 13:28:00,608 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 35 predicate places. [2024-11-13 13:28:00,610 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 63 transitions, 359 flow [2024-11-13 13:28:00,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-11-13 13:28:00,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:28:00,611 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:28:00,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:28:00,611 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-13 13:28:00,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:00,612 INFO L85 PathProgramCache]: Analyzing trace with hash -2126433412, now seen corresponding path program 5 times [2024-11-13 13:28:00,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:00,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198807432] [2024-11-13 13:28:00,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:00,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:01,269 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 13:28:01,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:01,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198807432] [2024-11-13 13:28:01,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198807432] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:28:01,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537960985] [2024-11-13 13:28:01,270 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-13 13:28:01,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:28:01,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:28:01,273 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:28:01,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:28:02,005 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-13 13:28:02,005 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:28:02,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:28:02,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:28:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 13:28:02,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:28:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 13:28:02,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537960985] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:28:02,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:28:02,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-13 13:28:02,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176017714] [2024-11-13 13:28:02,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:28:02,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:28:02,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:02,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:28:02,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:28:02,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-11-13 13:28:02,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 63 transitions, 359 flow. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 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) [2024-11-13 13:28:02,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:28:02,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-11-13 13:28:02,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:28:02,954 INFO L124 PetriNetUnfolderBase]: 1341/2755 cut-off events. [2024-11-13 13:28:02,954 INFO L125 PetriNetUnfolderBase]: For 8795/8809 co-relation queries the response was YES. [2024-11-13 13:28:02,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8699 conditions, 2755 events. 1341/2755 cut-off events. For 8795/8809 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 14669 event pairs, 128 based on Foata normal form. 122/2861 useless extension candidates. Maximal degree in co-relation 6837. Up to 714 conditions per place. [2024-11-13 13:28:02,981 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 95 selfloop transitions, 15 changer transitions 1/124 dead transitions. [2024-11-13 13:28:02,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 124 transitions, 911 flow [2024-11-13 13:28:02,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:28:02,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:28:02,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-11-13 13:28:02,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6842105263157895 [2024-11-13 13:28:02,984 INFO L175 Difference]: Start difference. First operand has 70 places, 63 transitions, 359 flow. Second operand 6 states and 156 transitions. [2024-11-13 13:28:02,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 124 transitions, 911 flow [2024-11-13 13:28:03,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 124 transitions, 897 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-13 13:28:03,007 INFO L231 Difference]: Finished difference. Result has 76 places, 65 transitions, 416 flow [2024-11-13 13:28:03,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=416, PETRI_PLACES=76, PETRI_TRANSITIONS=65} [2024-11-13 13:28:03,009 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 41 predicate places. [2024-11-13 13:28:03,010 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 65 transitions, 416 flow [2024-11-13 13:28:03,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 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) [2024-11-13 13:28:03,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:28:03,010 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:28:03,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:28:03,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-13 13:28:03,211 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-13 13:28:03,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:03,212 INFO L85 PathProgramCache]: Analyzing trace with hash 573445992, now seen corresponding path program 6 times [2024-11-13 13:28:03,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:03,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179744704] [2024-11-13 13:28:03,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:03,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:04,781 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 4 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 13:28:04,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:04,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179744704] [2024-11-13 13:28:04,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179744704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:28:04,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823509213] [2024-11-13 13:28:04,782 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-13 13:28:04,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:28:04,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:28:04,786 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:28:04,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:28:05,601 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-11-13 13:28:05,602 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:28:05,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 13:28:05,609 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:28:06,128 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 4 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 13:28:06,128 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:28:06,869 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 13:28:06,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823509213] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:28:06,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:28:06,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 30 [2024-11-13 13:28:06,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735898554] [2024-11-13 13:28:06,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:28:06,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-13 13:28:06,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:06,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-13 13:28:06,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=840, Unknown=0, NotChecked=0, Total=930 [2024-11-13 13:28:07,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-13 13:28:07,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 416 flow. Second operand has 31 states, 31 states have (on average 14.03225806451613) internal successors, (435), 31 states have internal predecessors, (435), 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) [2024-11-13 13:28:07,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:28:07,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-13 13:28:07,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:28:09,269 INFO L124 PetriNetUnfolderBase]: 1252/2580 cut-off events. [2024-11-13 13:28:09,269 INFO L125 PetriNetUnfolderBase]: For 9001/9019 co-relation queries the response was YES. [2024-11-13 13:28:09,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8908 conditions, 2580 events. 1252/2580 cut-off events. For 9001/9019 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 14037 event pairs, 81 based on Foata normal form. 76/2652 useless extension candidates. Maximal degree in co-relation 7426. Up to 545 conditions per place. [2024-11-13 13:28:09,289 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 164/164 dead transitions. [2024-11-13 13:28:09,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 164 transitions, 1361 flow [2024-11-13 13:28:09,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:28:09,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-13 13:28:09,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 239 transitions. [2024-11-13 13:28:09,295 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5241228070175439 [2024-11-13 13:28:09,295 INFO L175 Difference]: Start difference. First operand has 76 places, 65 transitions, 416 flow. Second operand 12 states and 239 transitions. [2024-11-13 13:28:09,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 164 transitions, 1361 flow [2024-11-13 13:28:09,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 164 transitions, 1282 flow, removed 24 selfloop flow, removed 2 redundant places. [2024-11-13 13:28:09,326 INFO L231 Difference]: Finished difference. Result has 83 places, 0 transitions, 0 flow [2024-11-13 13:28:09,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=83, PETRI_TRANSITIONS=0} [2024-11-13 13:28:09,327 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 48 predicate places. [2024-11-13 13:28:09,329 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 0 transitions, 0 flow [2024-11-13 13:28:09,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 14.03225806451613) internal successors, (435), 31 states have internal predecessors, (435), 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) [2024-11-13 13:28:09,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-13 13:28:09,334 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-13 13:28:09,334 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-13 13:28:09,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:28:09,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:28:09,538 INFO L407 BasicCegarLoop]: Path program histogram: [6, 1, 1] [2024-11-13 13:28:09,544 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 13:28:09,544 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:28:09,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:28:09 BasicIcfg [2024-11-13 13:28:09,561 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:28:09,565 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:28:09,565 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:28:09,566 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:28:09,566 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:27:49" (3/4) ... [2024-11-13 13:28:09,569 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 13:28:09,580 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-13 13:28:09,580 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-13 13:28:09,591 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 265 nodes and edges [2024-11-13 13:28:09,592 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-13 13:28:09,592 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 13:28:09,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 13:28:09,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 13:28:09,720 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:28:09,721 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 13:28:09,721 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:28:09,722 INFO L158 Benchmark]: Toolchain (without parser) took 23558.56ms. Allocated memory was 142.6MB in the beginning and 729.8MB in the end (delta: 587.2MB). Free memory was 98.9MB in the beginning and 622.8MB in the end (delta: -523.9MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. [2024-11-13 13:28:09,722 INFO L158 Benchmark]: CDTParser took 1.79ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:28:09,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 770.34ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 70.8MB in the end (delta: 28.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 13:28:09,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.10ms. Allocated memory is still 142.6MB. Free memory was 70.8MB in the beginning and 68.1MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:28:09,723 INFO L158 Benchmark]: Boogie Preprocessor took 111.01ms. Allocated memory is still 142.6MB. Free memory was 68.1MB in the beginning and 64.2MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:28:09,727 INFO L158 Benchmark]: RCFGBuilder took 2643.26ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 64.2MB in the beginning and 203.1MB in the end (delta: -138.9MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2024-11-13 13:28:09,729 INFO L158 Benchmark]: TraceAbstraction took 19788.91ms. Allocated memory was 285.2MB in the beginning and 729.8MB in the end (delta: 444.6MB). Free memory was 201.9MB in the beginning and 630.0MB in the end (delta: -428.1MB). Peak memory consumption was 413.2MB. Max. memory is 16.1GB. [2024-11-13 13:28:09,730 INFO L158 Benchmark]: Witness Printer took 155.79ms. Allocated memory is still 729.8MB. Free memory was 630.0MB in the beginning and 622.8MB in the end (delta: 7.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:28:09,740 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.79ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 770.34ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 70.8MB in the end (delta: 28.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.10ms. Allocated memory is still 142.6MB. Free memory was 70.8MB in the beginning and 68.1MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 111.01ms. Allocated memory is still 142.6MB. Free memory was 68.1MB in the beginning and 64.2MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2643.26ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 64.2MB in the beginning and 203.1MB in the end (delta: -138.9MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. * TraceAbstraction took 19788.91ms. Allocated memory was 285.2MB in the beginning and 729.8MB in the end (delta: 444.6MB). Free memory was 201.9MB in the beginning and 630.0MB in the end (delta: -428.1MB). Peak memory consumption was 413.2MB. Max. memory is 16.1GB. * Witness Printer took 155.79ms. Allocated memory is still 729.8MB. Free memory was 630.0MB in the beginning and 622.8MB in the end (delta: 7.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 919]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 55 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.6s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 488 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 475 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2853 IncrementalHoareTripleChecker+Invalid, 2871 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 2 mSDtfsCounter, 2853 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 370 GetRequests, 313 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=416occurred in iteration=7, InterpolantAutomatonStates: 50, 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: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 486 NumberOfCodeBlocks, 467 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 609 ConstructedInterpolants, 0 QuantifiedInterpolants, 2400 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1944 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 265/537 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 13:28:09,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3203b5c-2d8d-4551-8e28-41e33ed33c08/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE