./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a 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_11b959c3-736e-4948-9f2a-91959b2bcbb3/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/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_11b959c3-736e-4948-9f2a-91959b2bcbb3/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/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_11b959c3-736e-4948-9f2a-91959b2bcbb3/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 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:21,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:21,450 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 21:59:21,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:21,462 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:21,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:21,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:21,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:21,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:21,501 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:21,502 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:21,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:21,503 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:21,503 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:21,504 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:21,504 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:21,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:21,505 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:21,505 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:21,506 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:21,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:21,506 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:21,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:21,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:21,508 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:21,508 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:59:21,508 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:21,509 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:21,509 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:21,509 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:21,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:21,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:21,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:21,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:21,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:21,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:21,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:21,512 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:21,512 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:21,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:21,513 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:21,514 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:21,514 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:21,514 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:21,514 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_11b959c3-736e-4948-9f2a-91959b2bcbb3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb [2024-10-31 21:59:21,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:21,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:21,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:21,832 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:21,832 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:21,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i Unable to find full path for "g++" [2024-10-31 21:59:23,880 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:24,249 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:24,250 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2024-10-31 21:59:24,267 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/bin/uautomizer-verify-4GaUIPS5ZU/data/89606a9b7/794115769ac64153b74559f3ed7ec69e/FLAG49f827e1b [2024-10-31 21:59:24,290 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/bin/uautomizer-verify-4GaUIPS5ZU/data/89606a9b7/794115769ac64153b74559f3ed7ec69e [2024-10-31 21:59:24,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:24,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:24,295 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:24,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:24,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:24,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:24" (1/1) ... [2024-10-31 21:59:24,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@457c4c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:24, skipping insertion in model container [2024-10-31 21:59:24,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:24" (1/1) ... [2024-10-31 21:59:24,385 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:24,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:24,955 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:25,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:25,070 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:25,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25 WrapperNode [2024-10-31 21:59:25,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:25,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:25,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:25,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:25,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25" (1/1) ... [2024-10-31 21:59:25,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25" (1/1) ... [2024-10-31 21:59:25,132 INFO L138 Inliner]: procedures = 266, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2024-10-31 21:59:25,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:25,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:25,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:25,135 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:25,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25" (1/1) ... [2024-10-31 21:59:25,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25" (1/1) ... [2024-10-31 21:59:25,151 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25" (1/1) ... [2024-10-31 21:59:25,177 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [5]. The 0 writes are split as follows [0]. [2024-10-31 21:59:25,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25" (1/1) ... [2024-10-31 21:59:25,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25" (1/1) ... [2024-10-31 21:59:25,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25" (1/1) ... [2024-10-31 21:59:25,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25" (1/1) ... [2024-10-31 21:59:25,196 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25" (1/1) ... [2024-10-31 21:59:25,197 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25" (1/1) ... [2024-10-31 21:59:25,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:25,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:25,201 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:25,202 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:25,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25" (1/1) ... [2024-10-31 21:59:25,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:25,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:25,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:25,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 21:59:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 21:59:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 21:59:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 21:59:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:59:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:25,275 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 21:59:25,450 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:25,452 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:25,678 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:59:25,679 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:25,820 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:25,823 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 21:59:25,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:25 BoogieIcfgContainer [2024-10-31 21:59:25,824 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:25,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:25,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:25,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:25,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:24" (1/3) ... [2024-10-31 21:59:25,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220ab078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:25, skipping insertion in model container [2024-10-31 21:59:25,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:25" (2/3) ... [2024-10-31 21:59:25,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220ab078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:25, skipping insertion in model container [2024-10-31 21:59:25,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:25" (3/3) ... [2024-10-31 21:59:25,837 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2024-10-31 21:59:25,859 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:25,859 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-31 21:59:25,860 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:59:25,911 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 21:59:25,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 43 transitions, 90 flow [2024-10-31 21:59:26,005 INFO L124 PetriNetUnfolderBase]: 4/42 cut-off events. [2024-10-31 21:59:26,007 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:26,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 4/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2024-10-31 21:59:26,015 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 43 transitions, 90 flow [2024-10-31 21:59:26,020 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 42 transitions, 87 flow [2024-10-31 21:59:26,038 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:26,047 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;@6868a015, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:26,048 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-10-31 21:59:26,059 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:59:26,060 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-10-31 21:59:26,060 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:26,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:26,062 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 21:59:26,063 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:26,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:26,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2028905339, now seen corresponding path program 1 times [2024-10-31 21:59:26,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:26,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489225660] [2024-10-31 21:59:26,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:26,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:26,457 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 21:59:26,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:26,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489225660] [2024-10-31 21:59:26,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489225660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:26,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:26,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:26,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743630329] [2024-10-31 21:59:26,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:26,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:26,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:26,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:26,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:26,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 43 [2024-10-31 21:59:26,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 21:59:26,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:26,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 43 [2024-10-31 21:59:26,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:26,782 INFO L124 PetriNetUnfolderBase]: 126/343 cut-off events. [2024-10-31 21:59:26,782 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:26,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 343 events. 126/343 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1667 event pairs, 49 based on Foata normal form. 16/299 useless extension candidates. Maximal degree in co-relation 580. Up to 115 conditions per place. [2024-10-31 21:59:26,788 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 42 selfloop transitions, 7 changer transitions 0/70 dead transitions. [2024-10-31 21:59:26,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 70 transitions, 241 flow [2024-10-31 21:59:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:26,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:59:26,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 161 transitions. [2024-10-31 21:59:26,801 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7488372093023256 [2024-10-31 21:59:26,804 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 87 flow. Second operand 5 states and 161 transitions. [2024-10-31 21:59:26,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 70 transitions, 241 flow [2024-10-31 21:59:26,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 70 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 21:59:26,810 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 134 flow [2024-10-31 21:59:26,812 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=134, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2024-10-31 21:59:26,817 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2024-10-31 21:59:26,818 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 134 flow [2024-10-31 21:59:26,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 21:59:26,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:26,820 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:26,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:26,820 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:26,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:26,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1548561092, now seen corresponding path program 1 times [2024-10-31 21:59:26,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:26,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373190512] [2024-10-31 21:59:26,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:26,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:26,905 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 21:59:26,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:26,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373190512] [2024-10-31 21:59:26,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373190512] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:26,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:26,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:26,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838244530] [2024-10-31 21:59:26,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:26,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:26,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:26,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:26,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:26,944 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-31 21:59:26,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 134 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 21:59:26,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:26,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-31 21:59:26,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:27,228 INFO L124 PetriNetUnfolderBase]: 198/565 cut-off events. [2024-10-31 21:59:27,229 INFO L125 PetriNetUnfolderBase]: For 218/220 co-relation queries the response was YES. [2024-10-31 21:59:27,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 565 events. 198/565 cut-off events. For 218/220 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3325 event pairs, 76 based on Foata normal form. 14/511 useless extension candidates. Maximal degree in co-relation 1129. Up to 223 conditions per place. [2024-10-31 21:59:27,235 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 49 selfloop transitions, 10 changer transitions 0/76 dead transitions. [2024-10-31 21:59:27,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 76 transitions, 350 flow [2024-10-31 21:59:27,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:27,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:59:27,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 138 transitions. [2024-10-31 21:59:27,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.641860465116279 [2024-10-31 21:59:27,238 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 134 flow. Second operand 5 states and 138 transitions. [2024-10-31 21:59:27,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 76 transitions, 350 flow [2024-10-31 21:59:27,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 76 transitions, 350 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:59:27,242 INFO L231 Difference]: Finished difference. Result has 56 places, 54 transitions, 205 flow [2024-10-31 21:59:27,242 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=205, PETRI_PLACES=56, PETRI_TRANSITIONS=54} [2024-10-31 21:59:27,243 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 14 predicate places. [2024-10-31 21:59:27,243 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 54 transitions, 205 flow [2024-10-31 21:59:27,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 21:59:27,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:27,243 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:27,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:59:27,244 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:27,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:27,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1528443698, now seen corresponding path program 1 times [2024-10-31 21:59:27,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:27,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980248322] [2024-10-31 21:59:27,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:27,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:27,311 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 21:59:27,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:27,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980248322] [2024-10-31 21:59:27,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980248322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:27,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:27,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:27,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368411764] [2024-10-31 21:59:27,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:27,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:27,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:27,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:27,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:27,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 43 [2024-10-31 21:59:27,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 54 transitions, 205 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 21:59:27,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:27,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 43 [2024-10-31 21:59:27,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:27,537 INFO L124 PetriNetUnfolderBase]: 156/463 cut-off events. [2024-10-31 21:59:27,537 INFO L125 PetriNetUnfolderBase]: For 374/387 co-relation queries the response was YES. [2024-10-31 21:59:27,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 463 events. 156/463 cut-off events. For 374/387 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2604 event pairs, 40 based on Foata normal form. 32/471 useless extension candidates. Maximal degree in co-relation 1089. Up to 214 conditions per place. [2024-10-31 21:59:27,546 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 47 selfloop transitions, 7 changer transitions 11/89 dead transitions. [2024-10-31 21:59:27,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 89 transitions, 471 flow [2024-10-31 21:59:27,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:27,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:59:27,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 165 transitions. [2024-10-31 21:59:27,549 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7674418604651163 [2024-10-31 21:59:27,550 INFO L175 Difference]: Start difference. First operand has 56 places, 54 transitions, 205 flow. Second operand 5 states and 165 transitions. [2024-10-31 21:59:27,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 89 transitions, 471 flow [2024-10-31 21:59:27,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 89 transitions, 467 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 21:59:27,557 INFO L231 Difference]: Finished difference. Result has 60 places, 53 transitions, 216 flow [2024-10-31 21:59:27,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=216, PETRI_PLACES=60, PETRI_TRANSITIONS=53} [2024-10-31 21:59:27,558 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2024-10-31 21:59:27,558 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 53 transitions, 216 flow [2024-10-31 21:59:27,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 21:59:27,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:27,559 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:27,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:59:27,559 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:27,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:27,560 INFO L85 PathProgramCache]: Analyzing trace with hash -760776123, now seen corresponding path program 1 times [2024-10-31 21:59:27,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:27,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332998148] [2024-10-31 21:59:27,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:27,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:27,672 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 21:59:27,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:27,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332998148] [2024-10-31 21:59:27,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332998148] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:27,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:27,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:27,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719224088] [2024-10-31 21:59:27,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:27,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:27,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:27,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:27,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:27,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-31 21:59:27,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 53 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 21:59:27,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:27,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-31 21:59:27,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:27,885 INFO L124 PetriNetUnfolderBase]: 187/553 cut-off events. [2024-10-31 21:59:27,886 INFO L125 PetriNetUnfolderBase]: For 575/578 co-relation queries the response was YES. [2024-10-31 21:59:27,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 553 events. 187/553 cut-off events. For 575/578 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3239 event pairs, 91 based on Foata normal form. 9/526 useless extension candidates. Maximal degree in co-relation 1392. Up to 243 conditions per place. [2024-10-31 21:59:27,890 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 34 selfloop transitions, 9 changer transitions 6/65 dead transitions. [2024-10-31 21:59:27,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 65 transitions, 372 flow [2024-10-31 21:59:27,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:27,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:59:27,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2024-10-31 21:59:27,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6046511627906976 [2024-10-31 21:59:27,895 INFO L175 Difference]: Start difference. First operand has 60 places, 53 transitions, 216 flow. Second operand 4 states and 104 transitions. [2024-10-31 21:59:27,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 65 transitions, 372 flow [2024-10-31 21:59:27,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 65 transitions, 356 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:27,901 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 222 flow [2024-10-31 21:59:27,901 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-10-31 21:59:27,905 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2024-10-31 21:59:27,905 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 222 flow [2024-10-31 21:59:27,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 21:59:27,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:27,906 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:27,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:59:27,907 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:27,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:27,908 INFO L85 PathProgramCache]: Analyzing trace with hash -760753380, now seen corresponding path program 1 times [2024-10-31 21:59:27,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:27,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503959113] [2024-10-31 21:59:27,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:27,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:28,006 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 21:59:28,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:28,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503959113] [2024-10-31 21:59:28,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503959113] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:28,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:28,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:28,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384918333] [2024-10-31 21:59:28,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:28,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:28,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:28,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:28,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:28,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-31 21:59:28,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 21:59:28,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:28,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-31 21:59:28,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:28,215 INFO L124 PetriNetUnfolderBase]: 177/523 cut-off events. [2024-10-31 21:59:28,215 INFO L125 PetriNetUnfolderBase]: For 574/578 co-relation queries the response was YES. [2024-10-31 21:59:28,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1374 conditions, 523 events. 177/523 cut-off events. For 574/578 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3072 event pairs, 104 based on Foata normal form. 7/495 useless extension candidates. Maximal degree in co-relation 1354. Up to 304 conditions per place. [2024-10-31 21:59:28,220 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 40 selfloop transitions, 6 changer transitions 2/64 dead transitions. [2024-10-31 21:59:28,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 64 transitions, 368 flow [2024-10-31 21:59:28,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:59:28,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2024-10-31 21:59:28,222 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6162790697674418 [2024-10-31 21:59:28,223 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 222 flow. Second operand 4 states and 106 transitions. [2024-10-31 21:59:28,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 64 transitions, 368 flow [2024-10-31 21:59:28,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 64 transitions, 350 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 21:59:28,229 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 212 flow [2024-10-31 21:59:28,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2024-10-31 21:59:28,231 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2024-10-31 21:59:28,231 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 212 flow [2024-10-31 21:59:28,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 21:59:28,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:28,232 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:28,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:59:28,234 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:28,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:28,234 INFO L85 PathProgramCache]: Analyzing trace with hash -2109223117, now seen corresponding path program 1 times [2024-10-31 21:59:28,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:28,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065055857] [2024-10-31 21:59:28,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:28,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:28,352 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 21:59:28,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:28,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065055857] [2024-10-31 21:59:28,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065055857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:28,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:28,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:28,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319378977] [2024-10-31 21:59:28,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:28,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:28,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:28,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:28,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:28,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-31 21:59:28,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 212 flow. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 21:59:28,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:28,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-31 21:59:28,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:28,593 INFO L124 PetriNetUnfolderBase]: 165/490 cut-off events. [2024-10-31 21:59:28,593 INFO L125 PetriNetUnfolderBase]: For 511/520 co-relation queries the response was YES. [2024-10-31 21:59:28,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1262 conditions, 490 events. 165/490 cut-off events. For 511/520 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2843 event pairs, 63 based on Foata normal form. 19/479 useless extension candidates. Maximal degree in co-relation 1243. Up to 187 conditions per place. [2024-10-31 21:59:28,597 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 34 selfloop transitions, 12 changer transitions 9/71 dead transitions. [2024-10-31 21:59:28,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 71 transitions, 404 flow [2024-10-31 21:59:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:28,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:59:28,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2024-10-31 21:59:28,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5906976744186047 [2024-10-31 21:59:28,599 INFO L175 Difference]: Start difference. First operand has 60 places, 51 transitions, 212 flow. Second operand 5 states and 127 transitions. [2024-10-31 21:59:28,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 71 transitions, 404 flow [2024-10-31 21:59:28,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:28,606 INFO L231 Difference]: Finished difference. Result has 60 places, 48 transitions, 224 flow [2024-10-31 21:59:28,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=224, PETRI_PLACES=60, PETRI_TRANSITIONS=48} [2024-10-31 21:59:28,607 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2024-10-31 21:59:28,607 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 224 flow [2024-10-31 21:59:28,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 21:59:28,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:28,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:28,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:59:28,609 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:28,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:28,610 INFO L85 PathProgramCache]: Analyzing trace with hash -961407001, now seen corresponding path program 1 times [2024-10-31 21:59:28,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:28,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859492106] [2024-10-31 21:59:28,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:28,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:28,728 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 21:59:28,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:28,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859492106] [2024-10-31 21:59:28,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859492106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:28,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:28,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:28,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47859916] [2024-10-31 21:59:28,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:28,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:28,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:28,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:28,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:28,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 43 [2024-10-31 21:59:28,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 224 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 21:59:28,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:28,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 43 [2024-10-31 21:59:28,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:28,980 INFO L124 PetriNetUnfolderBase]: 152/485 cut-off events. [2024-10-31 21:59:28,980 INFO L125 PetriNetUnfolderBase]: For 590/593 co-relation queries the response was YES. [2024-10-31 21:59:28,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1259 conditions, 485 events. 152/485 cut-off events. For 590/593 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2794 event pairs, 27 based on Foata normal form. 9/462 useless extension candidates. Maximal degree in co-relation 1238. Up to 187 conditions per place. [2024-10-31 21:59:28,985 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 39 selfloop transitions, 10 changer transitions 4/68 dead transitions. [2024-10-31 21:59:28,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 68 transitions, 401 flow [2024-10-31 21:59:28,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:59:28,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:59:28,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2024-10-31 21:59:28,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5503875968992248 [2024-10-31 21:59:28,988 INFO L175 Difference]: Start difference. First operand has 60 places, 48 transitions, 224 flow. Second operand 6 states and 142 transitions. [2024-10-31 21:59:28,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 68 transitions, 401 flow [2024-10-31 21:59:28,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 68 transitions, 387 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 21:59:28,993 INFO L231 Difference]: Finished difference. Result has 61 places, 47 transitions, 222 flow [2024-10-31 21:59:28,994 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=222, PETRI_PLACES=61, PETRI_TRANSITIONS=47} [2024-10-31 21:59:28,995 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2024-10-31 21:59:28,995 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 47 transitions, 222 flow [2024-10-31 21:59:29,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 21:59:29,009 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:29,010 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:29,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:59:29,011 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:29,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:29,012 INFO L85 PathProgramCache]: Analyzing trace with hash -966232886, now seen corresponding path program 1 times [2024-10-31 21:59:29,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:29,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670815094] [2024-10-31 21:59:29,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:29,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:29,088 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 21:59:29,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:29,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670815094] [2024-10-31 21:59:29,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670815094] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:29,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:29,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:29,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733748685] [2024-10-31 21:59:29,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:29,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:29,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:29,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:29,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:29,099 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 43 [2024-10-31 21:59:29,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 47 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 21:59:29,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:29,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 43 [2024-10-31 21:59:29,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:29,295 INFO L124 PetriNetUnfolderBase]: 177/531 cut-off events. [2024-10-31 21:59:29,295 INFO L125 PetriNetUnfolderBase]: For 752/762 co-relation queries the response was YES. [2024-10-31 21:59:29,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1410 conditions, 531 events. 177/531 cut-off events. For 752/762 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3220 event pairs, 43 based on Foata normal form. 22/523 useless extension candidates. Maximal degree in co-relation 1388. Up to 132 conditions per place. [2024-10-31 21:59:29,300 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 41 selfloop transitions, 10 changer transitions 14/83 dead transitions. [2024-10-31 21:59:29,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 83 transitions, 521 flow [2024-10-31 21:59:29,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:29,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:59:29,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2024-10-31 21:59:29,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7441860465116279 [2024-10-31 21:59:29,302 INFO L175 Difference]: Start difference. First operand has 61 places, 47 transitions, 222 flow. Second operand 5 states and 160 transitions. [2024-10-31 21:59:29,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 83 transitions, 521 flow [2024-10-31 21:59:29,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 83 transitions, 477 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-31 21:59:29,308 INFO L231 Difference]: Finished difference. Result has 65 places, 51 transitions, 268 flow [2024-10-31 21:59:29,309 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=268, PETRI_PLACES=65, PETRI_TRANSITIONS=51} [2024-10-31 21:59:29,309 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 23 predicate places. [2024-10-31 21:59:29,310 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 51 transitions, 268 flow [2024-10-31 21:59:29,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 21:59:29,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:29,310 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:29,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:59:29,311 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:29,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:29,312 INFO L85 PathProgramCache]: Analyzing trace with hash 111551815, now seen corresponding path program 1 times [2024-10-31 21:59:29,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:29,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949177147] [2024-10-31 21:59:29,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:29,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:29,354 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 21:59:29,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:29,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949177147] [2024-10-31 21:59:29,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949177147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:29,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:29,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:29,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354893503] [2024-10-31 21:59:29,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:29,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:29,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:29,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:29,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:29,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 43 [2024-10-31 21:59:29,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 51 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 21:59:29,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:29,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 43 [2024-10-31 21:59:29,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:29,508 INFO L124 PetriNetUnfolderBase]: 147/479 cut-off events. [2024-10-31 21:59:29,508 INFO L125 PetriNetUnfolderBase]: For 799/806 co-relation queries the response was YES. [2024-10-31 21:59:29,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1306 conditions, 479 events. 147/479 cut-off events. For 799/806 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2918 event pairs, 76 based on Foata normal form. 18/467 useless extension candidates. Maximal degree in co-relation 1280. Up to 153 conditions per place. [2024-10-31 21:59:29,512 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 39 selfloop transitions, 9 changer transitions 3/69 dead transitions. [2024-10-31 21:59:29,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 69 transitions, 435 flow [2024-10-31 21:59:29,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:29,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:59:29,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-10-31 21:59:29,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7162790697674418 [2024-10-31 21:59:29,514 INFO L175 Difference]: Start difference. First operand has 65 places, 51 transitions, 268 flow. Second operand 5 states and 154 transitions. [2024-10-31 21:59:29,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 69 transitions, 435 flow [2024-10-31 21:59:29,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 69 transitions, 430 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-31 21:59:29,519 INFO L231 Difference]: Finished difference. Result has 68 places, 50 transitions, 277 flow [2024-10-31 21:59:29,519 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=277, PETRI_PLACES=68, PETRI_TRANSITIONS=50} [2024-10-31 21:59:29,520 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places. [2024-10-31 21:59:29,520 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 50 transitions, 277 flow [2024-10-31 21:59:29,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 21:59:29,520 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:29,521 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:29,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 21:59:29,521 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:29,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:29,522 INFO L85 PathProgramCache]: Analyzing trace with hash 111550298, now seen corresponding path program 1 times [2024-10-31 21:59:29,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:29,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319683041] [2024-10-31 21:59:29,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:29,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:29,562 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 21:59:29,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:29,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319683041] [2024-10-31 21:59:29,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319683041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:29,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:29,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:29,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66590916] [2024-10-31 21:59:29,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:29,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:29,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:29,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:29,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:29,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-31 21:59:29,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 50 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 21:59:29,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:29,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-31 21:59:29,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:29,765 INFO L124 PetriNetUnfolderBase]: 214/614 cut-off events. [2024-10-31 21:59:29,765 INFO L125 PetriNetUnfolderBase]: For 1175/1179 co-relation queries the response was YES. [2024-10-31 21:59:29,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1733 conditions, 614 events. 214/614 cut-off events. For 1175/1179 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3800 event pairs, 146 based on Foata normal form. 8/608 useless extension candidates. Maximal degree in co-relation 1706. Up to 394 conditions per place. [2024-10-31 21:59:29,770 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 50 selfloop transitions, 4 changer transitions 0/68 dead transitions. [2024-10-31 21:59:29,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 68 transitions, 467 flow [2024-10-31 21:59:29,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:29,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:59:29,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2024-10-31 21:59:29,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.586046511627907 [2024-10-31 21:59:29,772 INFO L175 Difference]: Start difference. First operand has 68 places, 50 transitions, 277 flow. Second operand 5 states and 126 transitions. [2024-10-31 21:59:29,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 68 transitions, 467 flow [2024-10-31 21:59:29,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 68 transitions, 449 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:29,778 INFO L231 Difference]: Finished difference. Result has 73 places, 52 transitions, 288 flow [2024-10-31 21:59:29,779 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=288, PETRI_PLACES=73, PETRI_TRANSITIONS=52} [2024-10-31 21:59:29,779 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 31 predicate places. [2024-10-31 21:59:29,780 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 52 transitions, 288 flow [2024-10-31 21:59:29,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 21:59:29,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:29,780 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:29,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 21:59:29,780 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:29,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:29,781 INFO L85 PathProgramCache]: Analyzing trace with hash -836907864, now seen corresponding path program 1 times [2024-10-31 21:59:29,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:29,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752493423] [2024-10-31 21:59:29,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:29,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:29,845 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 21:59:29,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:29,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752493423] [2024-10-31 21:59:29,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752493423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:29,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:29,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:29,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234316583] [2024-10-31 21:59:29,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:29,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:29,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:29,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:29,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:29,869 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-31 21:59:29,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 52 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 21:59:29,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:29,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-31 21:59:29,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:30,039 INFO L124 PetriNetUnfolderBase]: 209/607 cut-off events. [2024-10-31 21:59:30,039 INFO L125 PetriNetUnfolderBase]: For 1261/1266 co-relation queries the response was YES. [2024-10-31 21:59:30,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1824 conditions, 607 events. 209/607 cut-off events. For 1261/1266 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3829 event pairs, 124 based on Foata normal form. 7/604 useless extension candidates. Maximal degree in co-relation 1796. Up to 344 conditions per place. [2024-10-31 21:59:30,044 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 41 selfloop transitions, 5 changer transitions 10/70 dead transitions. [2024-10-31 21:59:30,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 70 transitions, 492 flow [2024-10-31 21:59:30,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:30,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:59:30,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-10-31 21:59:30,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5953488372093023 [2024-10-31 21:59:30,046 INFO L175 Difference]: Start difference. First operand has 73 places, 52 transitions, 288 flow. Second operand 5 states and 128 transitions. [2024-10-31 21:59:30,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 70 transitions, 492 flow [2024-10-31 21:59:30,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 70 transitions, 492 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:59:30,052 INFO L231 Difference]: Finished difference. Result has 77 places, 48 transitions, 266 flow [2024-10-31 21:59:30,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=266, PETRI_PLACES=77, PETRI_TRANSITIONS=48} [2024-10-31 21:59:30,053 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 35 predicate places. [2024-10-31 21:59:30,053 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 48 transitions, 266 flow [2024-10-31 21:59:30,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 21:59:30,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:30,054 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:30,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 21:59:30,054 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:30,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:30,054 INFO L85 PathProgramCache]: Analyzing trace with hash -172881681, now seen corresponding path program 1 times [2024-10-31 21:59:30,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:30,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490220694] [2024-10-31 21:59:30,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:30,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:30,097 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 21:59:30,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:30,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490220694] [2024-10-31 21:59:30,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490220694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:30,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:30,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:30,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2755144] [2024-10-31 21:59:30,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:30,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:30,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:30,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:30,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:30,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-10-31 21:59:30,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 48 transitions, 266 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 21:59:30,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:30,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-10-31 21:59:30,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:30,284 INFO L124 PetriNetUnfolderBase]: 203/565 cut-off events. [2024-10-31 21:59:30,285 INFO L125 PetriNetUnfolderBase]: For 1079/1085 co-relation queries the response was YES. [2024-10-31 21:59:30,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1717 conditions, 565 events. 203/565 cut-off events. For 1079/1085 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3285 event pairs, 52 based on Foata normal form. 38/596 useless extension candidates. Maximal degree in co-relation 1699. Up to 168 conditions per place. [2024-10-31 21:59:30,289 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 39 selfloop transitions, 8 changer transitions 2/61 dead transitions. [2024-10-31 21:59:30,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 61 transitions, 431 flow [2024-10-31 21:59:30,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:30,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:59:30,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-10-31 21:59:30,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.563953488372093 [2024-10-31 21:59:30,291 INFO L175 Difference]: Start difference. First operand has 77 places, 48 transitions, 266 flow. Second operand 4 states and 97 transitions. [2024-10-31 21:59:30,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 61 transitions, 431 flow [2024-10-31 21:59:30,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 61 transitions, 405 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-10-31 21:59:30,298 INFO L231 Difference]: Finished difference. Result has 68 places, 47 transitions, 250 flow [2024-10-31 21:59:30,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=68, PETRI_TRANSITIONS=47} [2024-10-31 21:59:30,300 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places. [2024-10-31 21:59:30,300 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 47 transitions, 250 flow [2024-10-31 21:59:30,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 21:59:30,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:30,302 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:30,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 21:59:30,302 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:30,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:30,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1064364621, now seen corresponding path program 1 times [2024-10-31 21:59:30,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:30,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389407310] [2024-10-31 21:59:30,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:30,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:30,356 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 21:59:30,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:30,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389407310] [2024-10-31 21:59:30,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389407310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:30,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:30,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:30,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432619166] [2024-10-31 21:59:30,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:30,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:30,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:30,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:30,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:30,390 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 43 [2024-10-31 21:59:30,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 47 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 21:59:30,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:30,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 43 [2024-10-31 21:59:30,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:30,508 INFO L124 PetriNetUnfolderBase]: 155/485 cut-off events. [2024-10-31 21:59:30,508 INFO L125 PetriNetUnfolderBase]: For 854/854 co-relation queries the response was YES. [2024-10-31 21:59:30,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1392 conditions, 485 events. 155/485 cut-off events. For 854/854 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2799 event pairs, 104 based on Foata normal form. 32/511 useless extension candidates. Maximal degree in co-relation 1378. Up to 285 conditions per place. [2024-10-31 21:59:30,511 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 25 selfloop transitions, 6 changer transitions 12/56 dead transitions. [2024-10-31 21:59:30,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 56 transitions, 370 flow [2024-10-31 21:59:30,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:30,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:59:30,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-10-31 21:59:30,513 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5523255813953488 [2024-10-31 21:59:30,513 INFO L175 Difference]: Start difference. First operand has 68 places, 47 transitions, 250 flow. Second operand 4 states and 95 transitions. [2024-10-31 21:59:30,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 56 transitions, 370 flow [2024-10-31 21:59:30,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 56 transitions, 354 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 21:59:30,517 INFO L231 Difference]: Finished difference. Result has 65 places, 40 transitions, 188 flow [2024-10-31 21:59:30,518 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=188, PETRI_PLACES=65, PETRI_TRANSITIONS=40} [2024-10-31 21:59:30,519 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 23 predicate places. [2024-10-31 21:59:30,519 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 40 transitions, 188 flow [2024-10-31 21:59:30,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 21:59:30,520 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:30,520 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:30,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 21:59:30,520 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:30,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:30,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1562613008, now seen corresponding path program 1 times [2024-10-31 21:59:30,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:30,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17588221] [2024-10-31 21:59:30,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:30,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:30,624 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 21:59:30,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:30,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17588221] [2024-10-31 21:59:30,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17588221] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:30,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:30,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:30,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280818558] [2024-10-31 21:59:30,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:30,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:30,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:30,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:30,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:30,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2024-10-31 21:59:30,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 40 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 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) [2024-10-31 21:59:30,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:30,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2024-10-31 21:59:30,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:30,807 INFO L124 PetriNetUnfolderBase]: 79/237 cut-off events. [2024-10-31 21:59:30,807 INFO L125 PetriNetUnfolderBase]: For 461/468 co-relation queries the response was YES. [2024-10-31 21:59:30,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 237 events. 79/237 cut-off events. For 461/468 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1093 event pairs, 19 based on Foata normal form. 13/245 useless extension candidates. Maximal degree in co-relation 678. Up to 54 conditions per place. [2024-10-31 21:59:30,809 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 44 selfloop transitions, 6 changer transitions 1/63 dead transitions. [2024-10-31 21:59:30,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 63 transitions, 390 flow [2024-10-31 21:59:30,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:59:30,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 21:59:30,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 182 transitions. [2024-10-31 21:59:30,811 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6046511627906976 [2024-10-31 21:59:30,811 INFO L175 Difference]: Start difference. First operand has 65 places, 40 transitions, 188 flow. Second operand 7 states and 182 transitions. [2024-10-31 21:59:30,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 63 transitions, 390 flow [2024-10-31 21:59:30,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 63 transitions, 340 flow, removed 1 selfloop flow, removed 10 redundant places. [2024-10-31 21:59:30,815 INFO L231 Difference]: Finished difference. Result has 60 places, 39 transitions, 161 flow [2024-10-31 21:59:30,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=161, PETRI_PLACES=60, PETRI_TRANSITIONS=39} [2024-10-31 21:59:30,817 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2024-10-31 21:59:30,817 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 39 transitions, 161 flow [2024-10-31 21:59:30,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 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) [2024-10-31 21:59:30,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:30,818 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:30,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 21:59:30,818 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:30,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:30,819 INFO L85 PathProgramCache]: Analyzing trace with hash -532290712, now seen corresponding path program 1 times [2024-10-31 21:59:30,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:30,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802577875] [2024-10-31 21:59:30,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:30,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:30,889 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 21:59:30,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:30,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802577875] [2024-10-31 21:59:30,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802577875] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:30,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:30,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:30,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104514696] [2024-10-31 21:59:30,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:30,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:30,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:30,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:30,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:30,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2024-10-31 21:59:30,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 39 transitions, 161 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 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) [2024-10-31 21:59:30,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:30,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2024-10-31 21:59:30,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:31,067 INFO L124 PetriNetUnfolderBase]: 72/221 cut-off events. [2024-10-31 21:59:31,068 INFO L125 PetriNetUnfolderBase]: For 290/297 co-relation queries the response was YES. [2024-10-31 21:59:31,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 221 events. 72/221 cut-off events. For 290/297 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1011 event pairs, 18 based on Foata normal form. 14/231 useless extension candidates. Maximal degree in co-relation 584. Up to 56 conditions per place. [2024-10-31 21:59:31,069 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 35 selfloop transitions, 11 changer transitions 1/59 dead transitions. [2024-10-31 21:59:31,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 59 transitions, 329 flow [2024-10-31 21:59:31,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 21:59:31,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 21:59:31,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 221 transitions. [2024-10-31 21:59:31,072 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5710594315245479 [2024-10-31 21:59:31,072 INFO L175 Difference]: Start difference. First operand has 60 places, 39 transitions, 161 flow. Second operand 9 states and 221 transitions. [2024-10-31 21:59:31,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 59 transitions, 329 flow [2024-10-31 21:59:31,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 59 transitions, 306 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-31 21:59:31,074 INFO L231 Difference]: Finished difference. Result has 61 places, 41 transitions, 175 flow [2024-10-31 21:59:31,075 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=175, PETRI_PLACES=61, PETRI_TRANSITIONS=41} [2024-10-31 21:59:31,075 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2024-10-31 21:59:31,075 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 41 transitions, 175 flow [2024-10-31 21:59:31,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 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) [2024-10-31 21:59:31,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:31,076 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:31,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 21:59:31,076 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:31,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:31,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1862562995, now seen corresponding path program 1 times [2024-10-31 21:59:31,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:31,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142027252] [2024-10-31 21:59:31,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:31,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:31,149 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 21:59:31,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:31,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142027252] [2024-10-31 21:59:31,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142027252] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:31,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:31,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:31,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569048354] [2024-10-31 21:59:31,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:31,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:31,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:31,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:31,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:31,174 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2024-10-31 21:59:31,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 41 transitions, 175 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 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) [2024-10-31 21:59:31,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:31,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2024-10-31 21:59:31,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:31,323 INFO L124 PetriNetUnfolderBase]: 68/212 cut-off events. [2024-10-31 21:59:31,323 INFO L125 PetriNetUnfolderBase]: For 279/288 co-relation queries the response was YES. [2024-10-31 21:59:31,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 212 events. 68/212 cut-off events. For 279/288 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 961 event pairs, 15 based on Foata normal form. 11/221 useless extension candidates. Maximal degree in co-relation 546. Up to 45 conditions per place. [2024-10-31 21:59:31,325 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 20 selfloop transitions, 7 changer transitions 23/62 dead transitions. [2024-10-31 21:59:31,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 62 transitions, 349 flow [2024-10-31 21:59:31,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 21:59:31,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 21:59:31,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 221 transitions. [2024-10-31 21:59:31,327 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5710594315245479 [2024-10-31 21:59:31,327 INFO L175 Difference]: Start difference. First operand has 61 places, 41 transitions, 175 flow. Second operand 9 states and 221 transitions. [2024-10-31 21:59:31,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 62 transitions, 349 flow [2024-10-31 21:59:31,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 62 transitions, 329 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-10-31 21:59:31,329 INFO L231 Difference]: Finished difference. Result has 61 places, 35 transitions, 149 flow [2024-10-31 21:59:31,329 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=149, PETRI_PLACES=61, PETRI_TRANSITIONS=35} [2024-10-31 21:59:31,330 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2024-10-31 21:59:31,330 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 35 transitions, 149 flow [2024-10-31 21:59:31,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 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) [2024-10-31 21:59:31,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:31,331 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:31,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 21:59:31,331 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:31,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:31,332 INFO L85 PathProgramCache]: Analyzing trace with hash 678857345, now seen corresponding path program 1 times [2024-10-31 21:59:31,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:31,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991762167] [2024-10-31 21:59:31,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:31,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:31,406 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 21:59:31,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:31,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991762167] [2024-10-31 21:59:31,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991762167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:31,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:31,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:31,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765128196] [2024-10-31 21:59:31,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:31,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:31,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:31,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:31,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:31,428 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2024-10-31 21:59:31,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 35 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 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) [2024-10-31 21:59:31,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:31,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2024-10-31 21:59:31,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:31,529 INFO L124 PetriNetUnfolderBase]: 27/108 cut-off events. [2024-10-31 21:59:31,529 INFO L125 PetriNetUnfolderBase]: For 132/136 co-relation queries the response was YES. [2024-10-31 21:59:31,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 108 events. 27/108 cut-off events. For 132/136 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 338 event pairs, 7 based on Foata normal form. 11/118 useless extension candidates. Maximal degree in co-relation 255. Up to 24 conditions per place. [2024-10-31 21:59:31,530 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2024-10-31 21:59:31,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 41 transitions, 220 flow [2024-10-31 21:59:31,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:59:31,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 21:59:31,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 185 transitions. [2024-10-31 21:59:31,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5377906976744186 [2024-10-31 21:59:31,532 INFO L175 Difference]: Start difference. First operand has 61 places, 35 transitions, 149 flow. Second operand 8 states and 185 transitions. [2024-10-31 21:59:31,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 41 transitions, 220 flow [2024-10-31 21:59:31,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 41 transitions, 198 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-31 21:59:31,533 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2024-10-31 21:59:31,533 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2024-10-31 21:59:31,534 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 5 predicate places. [2024-10-31 21:59:31,534 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2024-10-31 21:59:31,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 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) [2024-10-31 21:59:31,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-10-31 21:59:31,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-10-31 21:59:31,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-10-31 21:59:31,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-10-31 21:59:31,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-10-31 21:59:31,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-10-31 21:59:31,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-10-31 21:59:31,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-10-31 21:59:31,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-10-31 21:59:31,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-10-31 21:59:31,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-10-31 21:59:31,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-10-31 21:59:31,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-10-31 21:59:31,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 21:59:31,541 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:31,548 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 21:59:31,548 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 21:59:31,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 09:59:31 BasicIcfg [2024-10-31 21:59:31,554 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 21:59:31,556 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:59:31,556 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:59:31,556 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:59:31,557 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:25" (3/4) ... [2024-10-31 21:59:31,559 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 21:59:31,563 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-31 21:59:31,569 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-31 21:59:31,569 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-31 21:59:31,569 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-31 21:59:31,663 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 21:59:31,663 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 21:59:31,663 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:59:31,664 INFO L158 Benchmark]: Toolchain (without parser) took 7370.26ms. Allocated memory was 127.9MB in the beginning and 197.1MB in the end (delta: 69.2MB). Free memory was 93.3MB in the beginning and 57.3MB in the end (delta: 36.0MB). Peak memory consumption was 107.2MB. Max. memory is 16.1GB. [2024-10-31 21:59:31,664 INFO L158 Benchmark]: CDTParser took 1.10ms. Allocated memory is still 127.9MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:59:31,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 776.10ms. Allocated memory is still 127.9MB. Free memory was 93.3MB in the beginning and 62.9MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-31 21:59:31,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.22ms. Allocated memory is still 127.9MB. Free memory was 62.9MB in the beginning and 60.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:59:31,665 INFO L158 Benchmark]: Boogie Preprocessor took 65.90ms. Allocated memory is still 127.9MB. Free memory was 60.9MB in the beginning and 58.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:59:31,666 INFO L158 Benchmark]: RCFGBuilder took 624.04ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 58.6MB in the beginning and 120.5MB in the end (delta: -61.9MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2024-10-31 21:59:31,667 INFO L158 Benchmark]: TraceAbstraction took 5726.49ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 119.5MB in the beginning and 62.6MB in the end (delta: 56.9MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. [2024-10-31 21:59:31,667 INFO L158 Benchmark]: Witness Printer took 108.06ms. Allocated memory is still 197.1MB. Free memory was 62.6MB in the beginning and 57.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-31 21:59:31,670 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10ms. Allocated memory is still 127.9MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 776.10ms. Allocated memory is still 127.9MB. Free memory was 93.3MB in the beginning and 62.9MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.22ms. Allocated memory is still 127.9MB. Free memory was 62.9MB in the beginning and 60.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.90ms. Allocated memory is still 127.9MB. Free memory was 60.9MB in the beginning and 58.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.04ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 58.6MB in the beginning and 120.5MB in the end (delta: -61.9MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5726.49ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 119.5MB in the beginning and 62.6MB in the end (delta: 56.9MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. * Witness Printer took 108.06ms. Allocated memory is still 197.1MB. Free memory was 62.6MB in the beginning and 57.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 51 locations, 13 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: 5.6s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 756 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 590 mSDsluCounter, 214 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 139 mSDsCounter, 94 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1525 IncrementalHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 94 mSolverCounterUnsat, 75 mSDtfsCounter, 1525 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=10, InterpolantAutomatonStates: 95, 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, 1.2s InterpolantComputationTime, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 191 ConstructedInterpolants, 0 QuantifiedInterpolants, 527 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 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 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 21:59:31,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11b959c3-736e-4948-9f2a-91959b2bcbb3/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