./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:24,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:24,817 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:04:24,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:24,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:24,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:24,876 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:24,877 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:24,878 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:04:24,878 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:04:24,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:04:24,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:04:24,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:24,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:24,881 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:24,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:24,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:04:24,883 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:04:24,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:24,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:04:24,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:24,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:04:24,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:04:24,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:04:24,898 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:24,899 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:04:24,899 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:04:24,899 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:04:24,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:04:24,900 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:24,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:24,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:24,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:04:24,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:04:24,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:24,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:24,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:04:24,908 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:04:24,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:04:24,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:04:24,910 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:04:24,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:04:24,910 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:04:24,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:04:24,911 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_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf [2024-10-31 22:04:25,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:25,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:25,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:25,330 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:25,331 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:25,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i Unable to find full path for "g++" [2024-10-31 22:04:27,395 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:27,656 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:27,657 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2024-10-31 22:04:27,672 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/data/7a1e1883a/ccbd3e0f869d4d4cae4b65456f778713/FLAG372733613 [2024-10-31 22:04:27,687 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/data/7a1e1883a/ccbd3e0f869d4d4cae4b65456f778713 [2024-10-31 22:04:27,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:27,691 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:27,692 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:27,693 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:27,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:27,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:27" (1/1) ... [2024-10-31 22:04:27,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a3dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:27, skipping insertion in model container [2024-10-31 22:04:27,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:27" (1/1) ... [2024-10-31 22:04:27,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:28,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:28,193 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:28,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:28,285 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:28,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28 WrapperNode [2024-10-31 22:04:28,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:28,287 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:28,287 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:28,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:28,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28" (1/1) ... [2024-10-31 22:04:28,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28" (1/1) ... [2024-10-31 22:04:28,353 INFO L138 Inliner]: procedures = 162, calls = 54, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 109 [2024-10-31 22:04:28,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:28,354 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:28,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:28,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:28,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28" (1/1) ... [2024-10-31 22:04:28,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28" (1/1) ... [2024-10-31 22:04:28,376 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28" (1/1) ... [2024-10-31 22:04:28,401 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]. [2024-10-31 22:04:28,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28" (1/1) ... [2024-10-31 22:04:28,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28" (1/1) ... [2024-10-31 22:04:28,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28" (1/1) ... [2024-10-31 22:04:28,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28" (1/1) ... [2024-10-31 22:04:28,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28" (1/1) ... [2024-10-31 22:04:28,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28" (1/1) ... [2024-10-31 22:04:28,427 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:28,428 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:28,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:28,429 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:28,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28" (1/1) ... [2024-10-31 22:04:28,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:28,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:28,483 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:28,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:04:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:04:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:04:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:04:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:04:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:04:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:04:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:04:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:04:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:28,532 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:04:28,721 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:28,730 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:29,283 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:04:29,283 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:29,552 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:29,552 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:04:29,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:29 BoogieIcfgContainer [2024-10-31 22:04:29,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:29,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:04:29,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:04:29,564 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:04:29,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:04:27" (1/3) ... [2024-10-31 22:04:29,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da270d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:29, skipping insertion in model container [2024-10-31 22:04:29,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:28" (2/3) ... [2024-10-31 22:04:29,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da270d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:29, skipping insertion in model container [2024-10-31 22:04:29,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:29" (3/3) ... [2024-10-31 22:04:29,569 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2024-10-31 22:04:29,593 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:04:29,594 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-31 22:04:29,594 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:04:29,656 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:04:29,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 149 flow [2024-10-31 22:04:29,810 INFO L124 PetriNetUnfolderBase]: 0/70 cut-off events. [2024-10-31 22:04:29,810 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:04:29,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 0/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-31 22:04:29,814 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 71 transitions, 149 flow [2024-10-31 22:04:29,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 63 transitions, 129 flow [2024-10-31 22:04:29,838 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:29,847 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;@5d7e0e4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:29,848 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-10-31 22:04:29,859 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:04:29,861 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-10-31 22:04:29,862 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:04:29,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:29,863 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:29,863 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-10-31 22:04:29,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:29,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1884511695, now seen corresponding path program 1 times [2024-10-31 22:04:29,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:29,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662904687] [2024-10-31 22:04:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:29,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:30,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:30,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:30,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662904687] [2024-10-31 22:04:30,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662904687] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:30,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:30,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:30,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420231832] [2024-10-31 22:04:30,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:30,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:30,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:30,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:30,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:30,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 71 [2024-10-31 22:04:30,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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) [2024-10-31 22:04:30,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:30,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 71 [2024-10-31 22:04:30,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:31,039 INFO L124 PetriNetUnfolderBase]: 457/1372 cut-off events. [2024-10-31 22:04:31,039 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:04:31,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 1372 events. 457/1372 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 9000 event pairs, 34 based on Foata normal form. 18/1335 useless extension candidates. Maximal degree in co-relation 2346. Up to 481 conditions per place. [2024-10-31 22:04:31,063 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 76 selfloop transitions, 7 changer transitions 0/108 dead transitions. [2024-10-31 22:04:31,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 108 transitions, 385 flow [2024-10-31 22:04:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:31,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:04:31,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 193 transitions. [2024-10-31 22:04:31,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6795774647887324 [2024-10-31 22:04:31,084 INFO L175 Difference]: Start difference. First operand has 67 places, 63 transitions, 129 flow. Second operand 4 states and 193 transitions. [2024-10-31 22:04:31,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 108 transitions, 385 flow [2024-10-31 22:04:31,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 108 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:04:31,098 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 166 flow [2024-10-31 22:04:31,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2024-10-31 22:04:31,107 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2024-10-31 22:04:31,108 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 166 flow [2024-10-31 22:04:31,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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) [2024-10-31 22:04:31,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:31,110 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:31,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:04:31,110 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-10-31 22:04:31,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:31,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2059958155, now seen corresponding path program 1 times [2024-10-31 22:04:31,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:31,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797118463] [2024-10-31 22:04:31,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:31,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:31,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:31,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:31,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797118463] [2024-10-31 22:04:31,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797118463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:31,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:31,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:31,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360698420] [2024-10-31 22:04:31,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:31,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:31,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:31,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:31,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:31,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2024-10-31 22:04:31,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2024-10-31 22:04:31,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:31,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2024-10-31 22:04:31,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:32,079 INFO L124 PetriNetUnfolderBase]: 407/1220 cut-off events. [2024-10-31 22:04:32,079 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2024-10-31 22:04:32,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2282 conditions, 1220 events. 407/1220 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7729 event pairs, 34 based on Foata normal form. 33/1216 useless extension candidates. Maximal degree in co-relation 2270. Up to 375 conditions per place. [2024-10-31 22:04:32,088 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 100 selfloop transitions, 8 changer transitions 0/131 dead transitions. [2024-10-31 22:04:32,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 131 transitions, 516 flow [2024-10-31 22:04:32,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:32,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:32,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 265 transitions. [2024-10-31 22:04:32,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6220657276995305 [2024-10-31 22:04:32,095 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 166 flow. Second operand 6 states and 265 transitions. [2024-10-31 22:04:32,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 131 transitions, 516 flow [2024-10-31 22:04:32,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 131 transitions, 507 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:32,103 INFO L231 Difference]: Finished difference. Result has 71 places, 63 transitions, 165 flow [2024-10-31 22:04:32,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=165, PETRI_PLACES=71, PETRI_TRANSITIONS=63} [2024-10-31 22:04:32,105 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 4 predicate places. [2024-10-31 22:04:32,105 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 63 transitions, 165 flow [2024-10-31 22:04:32,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2024-10-31 22:04:32,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:32,106 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:32,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:04:32,107 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-10-31 22:04:32,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash 565807163, now seen corresponding path program 1 times [2024-10-31 22:04:32,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:32,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727562139] [2024-10-31 22:04:32,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:32,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:32,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:32,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:32,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727562139] [2024-10-31 22:04:32,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727562139] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:32,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:32,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:32,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901281149] [2024-10-31 22:04:32,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:32,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:32,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:32,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:32,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:32,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2024-10-31 22:04:32,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 63 transitions, 165 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2024-10-31 22:04:32,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:32,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2024-10-31 22:04:32,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:32,724 INFO L124 PetriNetUnfolderBase]: 393/1188 cut-off events. [2024-10-31 22:04:32,724 INFO L125 PetriNetUnfolderBase]: For 263/263 co-relation queries the response was YES. [2024-10-31 22:04:32,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2255 conditions, 1188 events. 393/1188 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7484 event pairs, 34 based on Foata normal form. 18/1169 useless extension candidates. Maximal degree in co-relation 2242. Up to 416 conditions per place. [2024-10-31 22:04:32,734 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 85 selfloop transitions, 8 changer transitions 0/116 dead transitions. [2024-10-31 22:04:32,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 116 transitions, 463 flow [2024-10-31 22:04:32,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:32,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:32,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 244 transitions. [2024-10-31 22:04:32,737 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5727699530516432 [2024-10-31 22:04:32,737 INFO L175 Difference]: Start difference. First operand has 71 places, 63 transitions, 165 flow. Second operand 6 states and 244 transitions. [2024-10-31 22:04:32,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 116 transitions, 463 flow [2024-10-31 22:04:32,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 116 transitions, 442 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:04:32,758 INFO L231 Difference]: Finished difference. Result has 69 places, 62 transitions, 158 flow [2024-10-31 22:04:32,759 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=158, PETRI_PLACES=69, PETRI_TRANSITIONS=62} [2024-10-31 22:04:32,760 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2024-10-31 22:04:32,760 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 62 transitions, 158 flow [2024-10-31 22:04:32,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2024-10-31 22:04:32,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:32,761 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] [2024-10-31 22:04:32,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:04:32,761 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-10-31 22:04:32,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:32,762 INFO L85 PathProgramCache]: Analyzing trace with hash -457855941, now seen corresponding path program 1 times [2024-10-31 22:04:32,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:32,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816157237] [2024-10-31 22:04:32,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:32,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:32,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:32,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:32,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816157237] [2024-10-31 22:04:32,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816157237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:32,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:32,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:32,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569880862] [2024-10-31 22:04:32,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:32,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:32,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:32,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:32,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:32,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 71 [2024-10-31 22:04:32,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 62 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-10-31 22:04:32,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:32,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 71 [2024-10-31 22:04:32,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:33,266 INFO L124 PetriNetUnfolderBase]: 422/1284 cut-off events. [2024-10-31 22:04:33,266 INFO L125 PetriNetUnfolderBase]: For 182/184 co-relation queries the response was YES. [2024-10-31 22:04:33,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2417 conditions, 1284 events. 422/1284 cut-off events. For 182/184 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8118 event pairs, 233 based on Foata normal form. 32/1279 useless extension candidates. Maximal degree in co-relation 2405. Up to 629 conditions per place. [2024-10-31 22:04:33,274 INFO L140 encePairwiseOnDemand]: 65/71 looper letters, 76 selfloop transitions, 4 changer transitions 0/101 dead transitions. [2024-10-31 22:04:33,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 101 transitions, 428 flow [2024-10-31 22:04:33,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:33,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:04:33,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 183 transitions. [2024-10-31 22:04:33,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6443661971830986 [2024-10-31 22:04:33,276 INFO L175 Difference]: Start difference. First operand has 69 places, 62 transitions, 158 flow. Second operand 4 states and 183 transitions. [2024-10-31 22:04:33,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 101 transitions, 428 flow [2024-10-31 22:04:33,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 101 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:04:33,279 INFO L231 Difference]: Finished difference. Result has 67 places, 61 transitions, 159 flow [2024-10-31 22:04:33,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=159, PETRI_PLACES=67, PETRI_TRANSITIONS=61} [2024-10-31 22:04:33,281 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 0 predicate places. [2024-10-31 22:04:33,281 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 61 transitions, 159 flow [2024-10-31 22:04:33,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-10-31 22:04:33,281 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:33,282 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] [2024-10-31 22:04:33,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:04:33,282 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-10-31 22:04:33,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:33,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1645447807, now seen corresponding path program 1 times [2024-10-31 22:04:33,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:33,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361213668] [2024-10-31 22:04:33,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:33,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:33,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:33,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:33,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361213668] [2024-10-31 22:04:33,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361213668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:33,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:33,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:33,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259504753] [2024-10-31 22:04:33,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:33,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:33,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:33,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:33,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:33,442 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2024-10-31 22:04:33,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 61 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 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) [2024-10-31 22:04:33,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:33,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2024-10-31 22:04:33,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:33,932 INFO L124 PetriNetUnfolderBase]: 413/1175 cut-off events. [2024-10-31 22:04:33,932 INFO L125 PetriNetUnfolderBase]: For 250/252 co-relation queries the response was YES. [2024-10-31 22:04:33,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2299 conditions, 1175 events. 413/1175 cut-off events. For 250/252 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7105 event pairs, 233 based on Foata normal form. 42/1212 useless extension candidates. Maximal degree in co-relation 2286. Up to 548 conditions per place. [2024-10-31 22:04:33,939 INFO L140 encePairwiseOnDemand]: 65/71 looper letters, 91 selfloop transitions, 4 changer transitions 0/114 dead transitions. [2024-10-31 22:04:33,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 114 transitions, 493 flow [2024-10-31 22:04:33,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:33,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:33,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 239 transitions. [2024-10-31 22:04:33,942 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5610328638497653 [2024-10-31 22:04:33,942 INFO L175 Difference]: Start difference. First operand has 67 places, 61 transitions, 159 flow. Second operand 6 states and 239 transitions. [2024-10-31 22:04:33,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 114 transitions, 493 flow [2024-10-31 22:04:33,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 114 transitions, 487 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:04:33,948 INFO L231 Difference]: Finished difference. Result has 68 places, 59 transitions, 154 flow [2024-10-31 22:04:33,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=68, PETRI_TRANSITIONS=59} [2024-10-31 22:04:33,950 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 1 predicate places. [2024-10-31 22:04:33,951 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 59 transitions, 154 flow [2024-10-31 22:04:33,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 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) [2024-10-31 22:04:33,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:33,951 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] [2024-10-31 22:04:33,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:04:33,952 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-10-31 22:04:33,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:33,954 INFO L85 PathProgramCache]: Analyzing trace with hash -530724987, now seen corresponding path program 1 times [2024-10-31 22:04:33,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:33,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920728577] [2024-10-31 22:04:33,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:33,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:34,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:34,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920728577] [2024-10-31 22:04:34,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920728577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:34,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:34,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:34,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584184680] [2024-10-31 22:04:34,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:34,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:34,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:34,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:34,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:34,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2024-10-31 22:04:34,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 59 transitions, 154 flow. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 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) [2024-10-31 22:04:34,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:34,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2024-10-31 22:04:34,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:34,489 INFO L124 PetriNetUnfolderBase]: 385/1115 cut-off events. [2024-10-31 22:04:34,489 INFO L125 PetriNetUnfolderBase]: For 231/233 co-relation queries the response was YES. [2024-10-31 22:04:34,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2206 conditions, 1115 events. 385/1115 cut-off events. For 231/233 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6703 event pairs, 233 based on Foata normal form. 32/1142 useless extension candidates. Maximal degree in co-relation 2193. Up to 548 conditions per place. [2024-10-31 22:04:34,493 INFO L140 encePairwiseOnDemand]: 66/71 looper letters, 0 selfloop transitions, 0 changer transitions 113/113 dead transitions. [2024-10-31 22:04:34,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 113 transitions, 491 flow [2024-10-31 22:04:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:34,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:34,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 236 transitions. [2024-10-31 22:04:34,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5539906103286385 [2024-10-31 22:04:34,495 INFO L175 Difference]: Start difference. First operand has 68 places, 59 transitions, 154 flow. Second operand 6 states and 236 transitions. [2024-10-31 22:04:34,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 113 transitions, 491 flow [2024-10-31 22:04:34,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 113 transitions, 484 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:04:34,498 INFO L231 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2024-10-31 22:04:34,498 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2024-10-31 22:04:34,499 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 1 predicate places. [2024-10-31 22:04:34,499 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2024-10-31 22:04:34,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 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) [2024-10-31 22:04:34,502 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-10-31 22:04:34,502 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-10-31 22:04:34,502 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-10-31 22:04:34,503 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-10-31 22:04:34,503 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-10-31 22:04:34,503 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-10-31 22:04:34,503 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-10-31 22:04:34,503 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-10-31 22:04:34,504 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-10-31 22:04:34,504 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-10-31 22:04:34,504 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-10-31 22:04:34,504 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-10-31 22:04:34,505 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-10-31 22:04:34,505 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-10-31 22:04:34,505 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-10-31 22:04:34,505 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-10-31 22:04:34,505 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-10-31 22:04:34,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:04:34,506 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-31 22:04:34,511 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:04:34,512 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:04:34,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:04:34 BasicIcfg [2024-10-31 22:04:34,517 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:04:34,518 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:04:34,518 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:04:34,518 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:04:34,519 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:29" (3/4) ... [2024-10-31 22:04:34,520 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:04:34,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-31 22:04:34,536 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-31 22:04:34,536 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-31 22:04:34,536 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-31 22:04:34,536 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:04:34,619 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:04:34,620 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:04:34,620 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:04:34,621 INFO L158 Benchmark]: Toolchain (without parser) took 6930.02ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 147.7MB in the beginning and 216.7MB in the end (delta: -68.9MB). Peak memory consumption was 132.2MB. Max. memory is 16.1GB. [2024-10-31 22:04:34,621 INFO L158 Benchmark]: CDTParser took 1.06ms. Allocated memory is still 123.7MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:04:34,622 INFO L158 Benchmark]: CACSL2BoogieTranslator took 593.95ms. Allocated memory is still 178.3MB. Free memory was 147.5MB in the beginning and 128.5MB in the end (delta: 19.0MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2024-10-31 22:04:34,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.74ms. Allocated memory is still 178.3MB. Free memory was 128.5MB in the beginning and 126.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:34,623 INFO L158 Benchmark]: Boogie Preprocessor took 72.91ms. Allocated memory is still 178.3MB. Free memory was 126.2MB in the beginning and 124.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:34,623 INFO L158 Benchmark]: RCFGBuilder took 1125.29ms. Allocated memory is still 178.3MB. Free memory was 124.0MB in the beginning and 107.1MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-31 22:04:34,624 INFO L158 Benchmark]: TraceAbstraction took 4957.95ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 106.2MB in the beginning and 53.1MB in the end (delta: 53.1MB). Peak memory consumption was 89.7MB. Max. memory is 16.1GB. [2024-10-31 22:04:34,624 INFO L158 Benchmark]: Witness Printer took 102.73ms. Allocated memory was 213.9MB in the beginning and 257.9MB in the end (delta: 44.0MB). Free memory was 53.1MB in the beginning and 216.7MB in the end (delta: -163.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:34,627 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.06ms. Allocated memory is still 123.7MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 593.95ms. Allocated memory is still 178.3MB. Free memory was 147.5MB in the beginning and 128.5MB in the end (delta: 19.0MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.74ms. Allocated memory is still 178.3MB. Free memory was 128.5MB in the beginning and 126.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.91ms. Allocated memory is still 178.3MB. Free memory was 126.2MB in the beginning and 124.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1125.29ms. Allocated memory is still 178.3MB. Free memory was 124.0MB in the beginning and 107.1MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4957.95ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 106.2MB in the beginning and 53.1MB in the end (delta: 53.1MB). Peak memory consumption was 89.7MB. Max. memory is 16.1GB. * Witness Printer took 102.73ms. Allocated memory was 213.9MB in the beginning and 257.9MB in the end (delta: 44.0MB). Free memory was 53.1MB in the beginning and 216.7MB in the end (delta: -163.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 115 locations, 17 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: 4.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 503 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 461 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1443 IncrementalHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 25 mSDtfsCounter, 1443 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=1, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 22:04:34,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81bf5d2-39b1-455d-9b56-b1b55dbb46d8/bin/uautomizer-verify-4GaUIPS5ZU/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