./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX --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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:03:06,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:03:06,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:03:06,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:03:06,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:03:06,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:03:06,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:03:06,903 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:03:06,904 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:03:06,906 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:03:06,907 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:03:06,907 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:03:06,908 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:03:06,908 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:03:06,909 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:03:06,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:03:06,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:03:06,914 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:03:06,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:03:06,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:03:06,915 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:03:06,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:03:06,918 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:03:06,919 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:03:06,919 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:03:06,919 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:03:06,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:03:06,920 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:03:06,920 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:03:06,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:03:06,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:03:06,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:03:06,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:03:06,922 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:03:06,922 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:03:06,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:03:06,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:03:06,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:03:06,923 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:03:06,923 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:03:06,924 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:03:06,926 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:03:06,926 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2024-11-08 18:03:07,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:03:07,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:03:07,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:03:07,255 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:03:07,255 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:03:07,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i Unable to find full path for "g++" [2024-11-08 18:03:09,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:03:09,610 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:03:09,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-11-08 18:03:09,631 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/data/c8c86b753/6734593ea00b4c3d877a2356a41c1ddb/FLAG4282571c4 [2024-11-08 18:03:09,650 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/data/c8c86b753/6734593ea00b4c3d877a2356a41c1ddb [2024-11-08 18:03:09,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:03:09,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:03:09,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:03:09,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:03:09,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:03:09,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:03:09" (1/1) ... [2024-11-08 18:03:09,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71bee6f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:09, skipping insertion in model container [2024-11-08 18:03:09,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:03:09" (1/1) ... [2024-11-08 18:03:09,721 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:03:09,938 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_0590e415-aa62-4726-bf57-b2cec7695b58/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2024-11-08 18:03:10,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:03:10,207 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:03:10,224 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_0590e415-aa62-4726-bf57-b2cec7695b58/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2024-11-08 18:03:10,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:03:10,349 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:03:10,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10 WrapperNode [2024-11-08 18:03:10,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:03:10,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:03:10,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:03:10,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:03:10,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10" (1/1) ... [2024-11-08 18:03:10,383 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10" (1/1) ... [2024-11-08 18:03:10,418 INFO L138 Inliner]: procedures = 163, calls = 54, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 109 [2024-11-08 18:03:10,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:03:10,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:03:10,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:03:10,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:03:10,434 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10" (1/1) ... [2024-11-08 18:03:10,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10" (1/1) ... [2024-11-08 18:03:10,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10" (1/1) ... [2024-11-08 18:03:10,472 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-08 18:03:10,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10" (1/1) ... [2024-11-08 18:03:10,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10" (1/1) ... [2024-11-08 18:03:10,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10" (1/1) ... [2024-11-08 18:03:10,487 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10" (1/1) ... [2024-11-08 18:03:10,493 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10" (1/1) ... [2024-11-08 18:03:10,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10" (1/1) ... [2024-11-08 18:03:10,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:03:10,501 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:03:10,501 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:03:10,502 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:03:10,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10" (1/1) ... [2024-11-08 18:03:10,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:03:10,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:03:10,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:03:10,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:03:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-08 18:03:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-08 18:03:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:03:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:03:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:03:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:03:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:03:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:03:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:03:10,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:03:10,596 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:03:10,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:03:10,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:03:10,598 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:03:10,775 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:03:10,778 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:03:11,116 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:03:11,117 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:03:11,444 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:03:11,447 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:03:11,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:03:11 BoogieIcfgContainer [2024-11-08 18:03:11,448 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:03:11,451 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:03:11,451 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:03:11,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:03:11,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:03:09" (1/3) ... [2024-11-08 18:03:11,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7536c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:03:11, skipping insertion in model container [2024-11-08 18:03:11,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:03:10" (2/3) ... [2024-11-08 18:03:11,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7536c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:03:11, skipping insertion in model container [2024-11-08 18:03:11,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:03:11" (3/3) ... [2024-11-08 18:03:11,459 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2024-11-08 18:03:11,481 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:03:11,481 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-08 18:03:11,482 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:03:11,561 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 18:03:11,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 80 transitions, 174 flow [2024-11-08 18:03:11,659 INFO L124 PetriNetUnfolderBase]: 4/78 cut-off events. [2024-11-08 18:03:11,659 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-08 18:03:11,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 78 events. 4/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2024-11-08 18:03:11,664 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 80 transitions, 174 flow [2024-11-08 18:03:11,670 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 68 transitions, 142 flow [2024-11-08 18:03:11,683 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:03:11,690 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;@46e83cf4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:03:11,690 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-08 18:03:11,703 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:03:11,703 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-08 18:03:11,703 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:03:11,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:03:11,704 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:03:11,705 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-08 18:03:11,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:11,711 INFO L85 PathProgramCache]: Analyzing trace with hash 2021764380, now seen corresponding path program 1 times [2024-11-08 18:03:11,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:11,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451242968] [2024-11-08 18:03:11,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:11,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:12,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:03:12,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:03:12,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451242968] [2024-11-08 18:03:12,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451242968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:12,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:12,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:03:12,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323274324] [2024-11-08 18:03:12,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:12,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:03:12,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:12,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:03:12,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:03:12,231 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 80 [2024-11-08 18:03:12,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-11-08 18:03:12,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:03:12,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 80 [2024-11-08 18:03:12,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:03:13,912 INFO L124 PetriNetUnfolderBase]: 4727/8284 cut-off events. [2024-11-08 18:03:13,912 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-08 18:03:13,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15778 conditions, 8284 events. 4727/8284 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 56753 event pairs, 1134 based on Foata normal form. 340/8373 useless extension candidates. Maximal degree in co-relation 15768. Up to 4568 conditions per place. [2024-11-08 18:03:13,983 INFO L140 encePairwiseOnDemand]: 63/80 looper letters, 93 selfloop transitions, 15 changer transitions 1/127 dead transitions. [2024-11-08 18:03:13,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 127 transitions, 481 flow [2024-11-08 18:03:13,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:03:13,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:03:13,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 229 transitions. [2024-11-08 18:03:14,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5725 [2024-11-08 18:03:14,004 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 142 flow. Second operand 5 states and 229 transitions. [2024-11-08 18:03:14,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 127 transitions, 481 flow [2024-11-08 18:03:14,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 127 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:03:14,019 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 234 flow [2024-11-08 18:03:14,021 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=234, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2024-11-08 18:03:14,027 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 6 predicate places. [2024-11-08 18:03:14,027 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 234 flow [2024-11-08 18:03:14,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-11-08 18:03:14,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:03:14,028 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:03:14,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:03:14,029 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-08 18:03:14,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:14,029 INFO L85 PathProgramCache]: Analyzing trace with hash -438640011, now seen corresponding path program 1 times [2024-11-08 18:03:14,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:14,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316245377] [2024-11-08 18:03:14,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:14,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:14,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:03:14,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:03:14,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316245377] [2024-11-08 18:03:14,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316245377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:14,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:14,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:03:14,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332096624] [2024-11-08 18:03:14,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:14,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:03:14,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:14,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:03:14,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:03:14,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 80 [2024-11-08 18:03:14,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2024-11-08 18:03:14,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:03:14,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 80 [2024-11-08 18:03:14,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:03:15,069 INFO L124 PetriNetUnfolderBase]: 1727/3846 cut-off events. [2024-11-08 18:03:15,070 INFO L125 PetriNetUnfolderBase]: For 732/760 co-relation queries the response was YES. [2024-11-08 18:03:15,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8072 conditions, 3846 events. 1727/3846 cut-off events. For 732/760 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 26828 event pairs, 443 based on Foata normal form. 210/4048 useless extension candidates. Maximal degree in co-relation 8058. Up to 2236 conditions per place. [2024-11-08 18:03:15,099 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 81 selfloop transitions, 6 changer transitions 0/115 dead transitions. [2024-11-08 18:03:15,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 115 transitions, 534 flow [2024-11-08 18:03:15,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:03:15,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:03:15,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2024-11-08 18:03:15,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.61875 [2024-11-08 18:03:15,103 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 234 flow. Second operand 4 states and 198 transitions. [2024-11-08 18:03:15,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 115 transitions, 534 flow [2024-11-08 18:03:15,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 115 transitions, 530 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-11-08 18:03:15,127 INFO L231 Difference]: Finished difference. Result has 82 places, 77 transitions, 259 flow [2024-11-08 18:03:15,127 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=259, PETRI_PLACES=82, PETRI_TRANSITIONS=77} [2024-11-08 18:03:15,129 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 10 predicate places. [2024-11-08 18:03:15,129 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 77 transitions, 259 flow [2024-11-08 18:03:15,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2024-11-08 18:03:15,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:03:15,131 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] [2024-11-08 18:03:15,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:03:15,132 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-08 18:03:15,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:15,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1475903510, now seen corresponding path program 1 times [2024-11-08 18:03:15,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:15,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530267836] [2024-11-08 18:03:15,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:15,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:15,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:03:15,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:03:15,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530267836] [2024-11-08 18:03:15,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530267836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:15,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:15,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:03:15,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435437843] [2024-11-08 18:03:15,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:15,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:03:15,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:15,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:03:15,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:03:15,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 80 [2024-11-08 18:03:15,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 259 flow. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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) [2024-11-08 18:03:15,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:03:15,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 80 [2024-11-08 18:03:15,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:03:16,210 INFO L124 PetriNetUnfolderBase]: 2209/4344 cut-off events. [2024-11-08 18:03:16,210 INFO L125 PetriNetUnfolderBase]: For 1268/1268 co-relation queries the response was YES. [2024-11-08 18:03:16,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9983 conditions, 4344 events. 2209/4344 cut-off events. For 1268/1268 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 28153 event pairs, 1239 based on Foata normal form. 100/4433 useless extension candidates. Maximal degree in co-relation 9966. Up to 2338 conditions per place. [2024-11-08 18:03:16,243 INFO L140 encePairwiseOnDemand]: 65/80 looper letters, 91 selfloop transitions, 23 changer transitions 5/137 dead transitions. [2024-11-08 18:03:16,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 137 transitions, 691 flow [2024-11-08 18:03:16,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:03:16,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:03:16,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 241 transitions. [2024-11-08 18:03:16,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5020833333333333 [2024-11-08 18:03:16,249 INFO L175 Difference]: Start difference. First operand has 82 places, 77 transitions, 259 flow. Second operand 6 states and 241 transitions. [2024-11-08 18:03:16,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 137 transitions, 691 flow [2024-11-08 18:03:16,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 137 transitions, 690 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:03:16,263 INFO L231 Difference]: Finished difference. Result has 88 places, 86 transitions, 395 flow [2024-11-08 18:03:16,264 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=395, PETRI_PLACES=88, PETRI_TRANSITIONS=86} [2024-11-08 18:03:16,266 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 16 predicate places. [2024-11-08 18:03:16,266 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 86 transitions, 395 flow [2024-11-08 18:03:16,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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) [2024-11-08 18:03:16,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:03:16,267 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] [2024-11-08 18:03:16,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:03:16,268 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-08 18:03:16,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:16,270 INFO L85 PathProgramCache]: Analyzing trace with hash 777584119, now seen corresponding path program 1 times [2024-11-08 18:03:16,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:16,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320530279] [2024-11-08 18:03:16,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:16,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:16,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:03:16,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:03:16,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320530279] [2024-11-08 18:03:16,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320530279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:16,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:16,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:03:16,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025085305] [2024-11-08 18:03:16,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:16,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:03:16,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:16,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:03:16,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:03:16,476 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 80 [2024-11-08 18:03:16,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 86 transitions, 395 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-11-08 18:03:16,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:03:16,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 80 [2024-11-08 18:03:16,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:03:17,224 INFO L124 PetriNetUnfolderBase]: 2035/4101 cut-off events. [2024-11-08 18:03:17,224 INFO L125 PetriNetUnfolderBase]: For 2953/2953 co-relation queries the response was YES. [2024-11-08 18:03:17,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10325 conditions, 4101 events. 2035/4101 cut-off events. For 2953/2953 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 26734 event pairs, 608 based on Foata normal form. 44/4140 useless extension candidates. Maximal degree in co-relation 10305. Up to 2599 conditions per place. [2024-11-08 18:03:17,254 INFO L140 encePairwiseOnDemand]: 70/80 looper letters, 96 selfloop transitions, 31 changer transitions 1/146 dead transitions. [2024-11-08 18:03:17,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 146 transitions, 934 flow [2024-11-08 18:03:17,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:03:17,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:03:17,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 210 transitions. [2024-11-08 18:03:17,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-11-08 18:03:17,256 INFO L175 Difference]: Start difference. First operand has 88 places, 86 transitions, 395 flow. Second operand 5 states and 210 transitions. [2024-11-08 18:03:17,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 146 transitions, 934 flow [2024-11-08 18:03:17,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 146 transitions, 902 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-08 18:03:17,271 INFO L231 Difference]: Finished difference. Result has 94 places, 99 transitions, 601 flow [2024-11-08 18:03:17,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=601, PETRI_PLACES=94, PETRI_TRANSITIONS=99} [2024-11-08 18:03:17,275 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 22 predicate places. [2024-11-08 18:03:17,275 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 99 transitions, 601 flow [2024-11-08 18:03:17,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-11-08 18:03:17,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:03:17,276 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, 1, 1] [2024-11-08 18:03:17,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:03:17,276 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-08 18:03:17,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:17,279 INFO L85 PathProgramCache]: Analyzing trace with hash 436686877, now seen corresponding path program 1 times [2024-11-08 18:03:17,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:17,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754410862] [2024-11-08 18:03:17,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:17,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:17,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:03:17,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:03:17,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754410862] [2024-11-08 18:03:17,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754410862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:17,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:17,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:03:17,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138979896] [2024-11-08 18:03:17,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:17,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:03:17,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:17,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:03:17,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:03:17,462 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 80 [2024-11-08 18:03:17,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 99 transitions, 601 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-08 18:03:17,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:03:17,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 80 [2024-11-08 18:03:17,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:03:17,934 INFO L124 PetriNetUnfolderBase]: 1075/2454 cut-off events. [2024-11-08 18:03:17,934 INFO L125 PetriNetUnfolderBase]: For 2172/2184 co-relation queries the response was YES. [2024-11-08 18:03:17,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6846 conditions, 2454 events. 1075/2454 cut-off events. For 2172/2184 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 15676 event pairs, 363 based on Foata normal form. 288/2710 useless extension candidates. Maximal degree in co-relation 6822. Up to 1214 conditions per place. [2024-11-08 18:03:17,959 INFO L140 encePairwiseOnDemand]: 63/80 looper letters, 65 selfloop transitions, 17 changer transitions 2/119 dead transitions. [2024-11-08 18:03:17,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 119 transitions, 831 flow [2024-11-08 18:03:17,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:03:17,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:03:17,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2024-11-08 18:03:17,961 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.596875 [2024-11-08 18:03:17,961 INFO L175 Difference]: Start difference. First operand has 94 places, 99 transitions, 601 flow. Second operand 4 states and 191 transitions. [2024-11-08 18:03:17,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 119 transitions, 831 flow [2024-11-08 18:03:17,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 119 transitions, 811 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-08 18:03:17,981 INFO L231 Difference]: Finished difference. Result has 97 places, 99 transitions, 607 flow [2024-11-08 18:03:17,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=607, PETRI_PLACES=97, PETRI_TRANSITIONS=99} [2024-11-08 18:03:17,983 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 25 predicate places. [2024-11-08 18:03:17,983 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 99 transitions, 607 flow [2024-11-08 18:03:17,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-08 18:03:17,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:03:17,984 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, 1, 1, 1] [2024-11-08 18:03:17,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:03:17,984 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-08 18:03:17,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:17,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1206905261, now seen corresponding path program 1 times [2024-11-08 18:03:17,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:17,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589915690] [2024-11-08 18:03:17,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:17,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:18,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:03:18,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:03:18,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589915690] [2024-11-08 18:03:18,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589915690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:18,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:18,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:03:18,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436762820] [2024-11-08 18:03:18,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:18,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:03:18,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:18,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:03:18,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:03:18,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 80 [2024-11-08 18:03:18,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 99 transitions, 607 flow. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 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) [2024-11-08 18:03:18,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:03:18,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 80 [2024-11-08 18:03:18,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:03:18,763 INFO L124 PetriNetUnfolderBase]: 790/1941 cut-off events. [2024-11-08 18:03:18,763 INFO L125 PetriNetUnfolderBase]: For 2171/2175 co-relation queries the response was YES. [2024-11-08 18:03:18,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5923 conditions, 1941 events. 790/1941 cut-off events. For 2171/2175 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 11871 event pairs, 223 based on Foata normal form. 62/1999 useless extension candidates. Maximal degree in co-relation 5897. Up to 1397 conditions per place. [2024-11-08 18:03:18,777 INFO L140 encePairwiseOnDemand]: 76/80 looper letters, 59 selfloop transitions, 6 changer transitions 11/99 dead transitions. [2024-11-08 18:03:18,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 99 transitions, 713 flow [2024-11-08 18:03:18,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:03:18,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:03:18,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 174 transitions. [2024-11-08 18:03:18,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.54375 [2024-11-08 18:03:18,779 INFO L175 Difference]: Start difference. First operand has 97 places, 99 transitions, 607 flow. Second operand 4 states and 174 transitions. [2024-11-08 18:03:18,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 99 transitions, 713 flow [2024-11-08 18:03:18,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 99 transitions, 632 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-08 18:03:18,791 INFO L231 Difference]: Finished difference. Result has 86 places, 74 transitions, 390 flow [2024-11-08 18:03:18,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=390, PETRI_PLACES=86, PETRI_TRANSITIONS=74} [2024-11-08 18:03:18,792 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 14 predicate places. [2024-11-08 18:03:18,792 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 74 transitions, 390 flow [2024-11-08 18:03:18,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 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) [2024-11-08 18:03:18,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:03:18,792 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, 1, 1, 1, 1, 1] [2024-11-08 18:03:18,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:03:18,793 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-08 18:03:18,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:18,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1614080330, now seen corresponding path program 1 times [2024-11-08 18:03:18,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:18,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288621364] [2024-11-08 18:03:18,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:18,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:19,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:03:19,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:03:19,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288621364] [2024-11-08 18:03:19,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288621364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:19,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:19,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:03:19,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580323375] [2024-11-08 18:03:19,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:19,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:03:19,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:19,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:03:19,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:03:19,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 80 [2024-11-08 18:03:19,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 74 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 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) [2024-11-08 18:03:19,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:03:19,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 80 [2024-11-08 18:03:19,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:03:19,355 INFO L124 PetriNetUnfolderBase]: 537/1307 cut-off events. [2024-11-08 18:03:19,355 INFO L125 PetriNetUnfolderBase]: For 1276/1276 co-relation queries the response was YES. [2024-11-08 18:03:19,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3736 conditions, 1307 events. 537/1307 cut-off events. For 1276/1276 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7017 event pairs, 215 based on Foata normal form. 47/1351 useless extension candidates. Maximal degree in co-relation 3712. Up to 691 conditions per place. [2024-11-08 18:03:19,379 INFO L140 encePairwiseOnDemand]: 76/80 looper letters, 64 selfloop transitions, 5 changer transitions 4/94 dead transitions. [2024-11-08 18:03:19,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 94 transitions, 644 flow [2024-11-08 18:03:19,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:03:19,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:03:19,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 173 transitions. [2024-11-08 18:03:19,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.540625 [2024-11-08 18:03:19,380 INFO L175 Difference]: Start difference. First operand has 86 places, 74 transitions, 390 flow. Second operand 4 states and 173 transitions. [2024-11-08 18:03:19,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 94 transitions, 644 flow [2024-11-08 18:03:19,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 94 transitions, 586 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-08 18:03:19,387 INFO L231 Difference]: Finished difference. Result has 77 places, 69 transitions, 319 flow [2024-11-08 18:03:19,388 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=319, PETRI_PLACES=77, PETRI_TRANSITIONS=69} [2024-11-08 18:03:19,388 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 5 predicate places. [2024-11-08 18:03:19,389 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 69 transitions, 319 flow [2024-11-08 18:03:19,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 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) [2024-11-08 18:03:19,389 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:03:19,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:03:19,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:03:19,390 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-08 18:03:19,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:03:19,391 INFO L85 PathProgramCache]: Analyzing trace with hash 782609403, now seen corresponding path program 1 times [2024-11-08 18:03:19,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:03:19,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700848701] [2024-11-08 18:03:19,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:03:19,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:03:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:03:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:03:19,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:03:19,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700848701] [2024-11-08 18:03:19,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700848701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:03:19,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:03:19,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:03:19,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906190709] [2024-11-08 18:03:19,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:03:19,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:03:19,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:19,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:03:19,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:03:19,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 80 [2024-11-08 18:03:19,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 69 transitions, 319 flow. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:03:19,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:03:19,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 80 [2024-11-08 18:03:19,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:03:19,897 INFO L124 PetriNetUnfolderBase]: 586/1296 cut-off events. [2024-11-08 18:03:19,897 INFO L125 PetriNetUnfolderBase]: For 942/942 co-relation queries the response was YES. [2024-11-08 18:03:19,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3677 conditions, 1296 events. 586/1296 cut-off events. For 942/942 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 6700 event pairs, 368 based on Foata normal form. 12/1304 useless extension candidates. Maximal degree in co-relation 3656. Up to 827 conditions per place. [2024-11-08 18:03:19,902 INFO L140 encePairwiseOnDemand]: 71/80 looper letters, 0 selfloop transitions, 0 changer transitions 97/97 dead transitions. [2024-11-08 18:03:19,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 97 transitions, 625 flow [2024-11-08 18:03:19,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:03:19,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:03:19,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 197 transitions. [2024-11-08 18:03:19,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41041666666666665 [2024-11-08 18:03:19,904 INFO L175 Difference]: Start difference. First operand has 77 places, 69 transitions, 319 flow. Second operand 6 states and 197 transitions. [2024-11-08 18:03:19,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 97 transitions, 625 flow [2024-11-08 18:03:19,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 97 transitions, 610 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-08 18:03:19,909 INFO L231 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2024-11-08 18:03:19,909 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2024-11-08 18:03:19,910 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 5 predicate places. [2024-11-08 18:03:19,910 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2024-11-08 18:03:19,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:03:19,917 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-08 18:03:19,919 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-08 18:03:19,919 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2024-11-08 18:03:19,919 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-11-08 18:03:19,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-08 18:03:19,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-11-08 18:03:19,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:03:19,920 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:03:19,929 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 18:03:19,929 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:03:19,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:03:19 BasicIcfg [2024-11-08 18:03:19,938 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:03:19,939 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:03:19,939 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:03:19,939 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:03:19,943 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:03:11" (3/4) ... [2024-11-08 18:03:19,946 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 18:03:19,952 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2024-11-08 18:03:19,952 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-08 18:03:19,958 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2024-11-08 18:03:19,958 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-08 18:03:19,959 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 18:03:19,960 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 18:03:20,071 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:03:20,072 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 18:03:20,072 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:03:20,073 INFO L158 Benchmark]: Toolchain (without parser) took 10417.57ms. Allocated memory was 159.4MB in the beginning and 350.2MB in the end (delta: 190.8MB). Free memory was 123.8MB in the beginning and 145.2MB in the end (delta: -21.4MB). Peak memory consumption was 170.0MB. Max. memory is 16.1GB. [2024-11-08 18:03:20,073 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 159.4MB. Free memory was 103.4MB in the beginning and 103.3MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:03:20,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 693.81ms. Allocated memory is still 159.4MB. Free memory was 123.8MB in the beginning and 100.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 18:03:20,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.01ms. Allocated memory is still 159.4MB. Free memory was 100.7MB in the beginning and 98.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:03:20,074 INFO L158 Benchmark]: Boogie Preprocessor took 80.53ms. Allocated memory is still 159.4MB. Free memory was 98.6MB in the beginning and 96.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:03:20,075 INFO L158 Benchmark]: RCFGBuilder took 946.66ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 96.0MB in the beginning and 150.7MB in the end (delta: -54.7MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2024-11-08 18:03:20,075 INFO L158 Benchmark]: TraceAbstraction took 8487.09ms. Allocated memory was 197.1MB in the beginning and 350.2MB in the end (delta: 153.1MB). Free memory was 149.6MB in the beginning and 149.4MB in the end (delta: 234.6kB). Peak memory consumption was 152.3MB. Max. memory is 16.1GB. [2024-11-08 18:03:20,075 INFO L158 Benchmark]: Witness Printer took 133.18ms. Allocated memory is still 350.2MB. Free memory was 149.4MB in the beginning and 145.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:03:20,078 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 159.4MB. Free memory was 103.4MB in the beginning and 103.3MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 693.81ms. Allocated memory is still 159.4MB. Free memory was 123.8MB in the beginning and 100.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.01ms. Allocated memory is still 159.4MB. Free memory was 100.7MB in the beginning and 98.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.53ms. Allocated memory is still 159.4MB. Free memory was 98.6MB in the beginning and 96.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 946.66ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 96.0MB in the beginning and 150.7MB in the end (delta: -54.7MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8487.09ms. Allocated memory was 197.1MB in the beginning and 350.2MB in the end (delta: 153.1MB). Free memory was 149.6MB in the beginning and 149.4MB in the end (delta: 234.6kB). Peak memory consumption was 152.3MB. Max. memory is 16.1GB. * Witness Printer took 133.18ms. Allocated memory is still 350.2MB. Free memory was 149.4MB in the beginning and 145.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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, 107 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 459 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 422 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1111 IncrementalHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 35 mSDtfsCounter, 1111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=607occurred in iteration=5, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 1042 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 18:03:20,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0590e415-aa62-4726-bf57-b2cec7695b58/bin/uautomizer-verify-jihMAELWvX/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