./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:01:16,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:01:16,932 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:01:16,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:01:16,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:01:16,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:01:16,964 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:01:16,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:01:16,965 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:01:16,965 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:01:16,966 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:01:16,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:01:16,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:01:16,968 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:01:16,968 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:01:16,969 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:01:16,969 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:01:16,969 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:01:16,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:01:16,970 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:01:16,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:01:16,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:01:16,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:01:16,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:01:16,976 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:01:16,976 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:01:16,977 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:01:16,977 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:01:16,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:01:16,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:01:16,978 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:01:16,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:01:16,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:01:16,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:01:16,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:01:16,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:01:16,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:01:16,980 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:01:16,980 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:01:16,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:01:16,981 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:01:16,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:01:16,981 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:01:16,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:01:16,982 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 [2024-11-19 14:01:17,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:01:17,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:01:17,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:01:17,270 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:01:17,271 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:01:17,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-11-19 14:01:18,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:01:18,950 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:01:18,952 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-11-19 14:01:18,973 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75a57353a/37318976157c4991bcbf6f158aafb12d/FLAGd7910b743 [2024-11-19 14:01:18,986 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75a57353a/37318976157c4991bcbf6f158aafb12d [2024-11-19 14:01:18,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:01:18,989 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:01:18,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:01:18,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:01:18,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:01:18,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:18" (1/1) ... [2024-11-19 14:01:18,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1b85de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:18, skipping insertion in model container [2024-11-19 14:01:18,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:18" (1/1) ... [2024-11-19 14:01:19,049 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:01:19,509 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:19,510 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:19,510 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:19,510 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:19,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:01:19,588 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:01:19,646 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:19,647 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:19,647 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:19,648 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:19,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:01:19,731 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:01:19,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19 WrapperNode [2024-11-19 14:01:19,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:01:19,733 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:01:19,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:01:19,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:01:19,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19" (1/1) ... [2024-11-19 14:01:19,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19" (1/1) ... [2024-11-19 14:01:19,807 INFO L138 Inliner]: procedures = 279, calls = 120, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 281 [2024-11-19 14:01:19,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:01:19,809 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:01:19,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:01:19,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:01:19,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19" (1/1) ... [2024-11-19 14:01:19,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19" (1/1) ... [2024-11-19 14:01:19,830 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19" (1/1) ... [2024-11-19 14:01:19,859 INFO L175 MemorySlicer]: Split 96 memory accesses to 4 slices as follows [2, 5, 2, 87]. 91 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 5, 0, 70]. The 12 writes are split as follows [0, 0, 1, 11]. [2024-11-19 14:01:19,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19" (1/1) ... [2024-11-19 14:01:19,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19" (1/1) ... [2024-11-19 14:01:19,878 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19" (1/1) ... [2024-11-19 14:01:19,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19" (1/1) ... [2024-11-19 14:01:19,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19" (1/1) ... [2024-11-19 14:01:19,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19" (1/1) ... [2024-11-19 14:01:19,904 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:01:19,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:01:19,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:01:19,907 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:01:19,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19" (1/1) ... [2024-11-19 14:01:19,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:01:19,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:19,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 14:01:19,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 14:01:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 14:01:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 14:01:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 14:01:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 14:01:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 14:01:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 14:01:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 14:01:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 14:01:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 14:01:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 14:01:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 14:01:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:01:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:01:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 14:01:20,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 14:01:20,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:01:20,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:01:20,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 14:01:20,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 14:01:20,004 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 14:01:20,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 14:01:20,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:01:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 14:01:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 14:01:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 14:01:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 14:01:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 14:01:20,005 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 14:01:20,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:01:20,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:01:20,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 14:01:20,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 14:01:20,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:01:20,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:01:20,008 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:01:20,221 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:01:20,223 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:01:20,680 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:01:20,680 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:01:21,383 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:01:21,384 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-19 14:01:21,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:01:21 BoogieIcfgContainer [2024-11-19 14:01:21,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:01:21,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:01:21,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:01:21,390 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:01:21,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:01:18" (1/3) ... [2024-11-19 14:01:21,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe9298e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:01:21, skipping insertion in model container [2024-11-19 14:01:21,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:19" (2/3) ... [2024-11-19 14:01:21,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe9298e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:01:21, skipping insertion in model container [2024-11-19 14:01:21,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:01:21" (3/3) ... [2024-11-19 14:01:21,394 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2024-11-19 14:01:21,413 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:01:21,414 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-19 14:01:21,414 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:01:21,480 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 14:01:21,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 87 transitions, 181 flow [2024-11-19 14:01:21,559 INFO L124 PetriNetUnfolderBase]: 16/91 cut-off events. [2024-11-19 14:01:21,561 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 14:01:21,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 16/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 261 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2024-11-19 14:01:21,565 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 87 transitions, 181 flow [2024-11-19 14:01:21,569 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 86 transitions, 179 flow [2024-11-19 14:01:21,582 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:01:21,591 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;@74f2830, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:01:21,591 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-19 14:01:21,600 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:01:21,600 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-11-19 14:01:21,601 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:01:21,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:21,602 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-19 14:01:21,603 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-19 14:01:21,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:21,608 INFO L85 PathProgramCache]: Analyzing trace with hash 22626832, now seen corresponding path program 1 times [2024-11-19 14:01:21,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:21,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051418798] [2024-11-19 14:01:21,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:21,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 14:01:21,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2005754228] [2024-11-19 14:01:21,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:21,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:21,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:21,826 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:01:21,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 14:01:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:21,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 14:01:21,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:22,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:22,031 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:01:22,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:22,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051418798] [2024-11-19 14:01:22,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 14:01:22,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005754228] [2024-11-19 14:01:22,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005754228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:22,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:01:22,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:01:22,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031793070] [2024-11-19 14:01:22,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:22,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:01:22,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:22,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:01:22,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:01:22,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2024-11-19 14:01:22,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 86 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:22,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:22,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2024-11-19 14:01:22,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:22,381 INFO L124 PetriNetUnfolderBase]: 126/413 cut-off events. [2024-11-19 14:01:22,381 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 14:01:22,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 413 events. 126/413 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1891 event pairs, 105 based on Foata normal form. 37/370 useless extension candidates. Maximal degree in co-relation 620. Up to 264 conditions per place. [2024-11-19 14:01:22,386 INFO L140 encePairwiseOnDemand]: 72/87 looper letters, 42 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2024-11-19 14:01:22,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 81 transitions, 257 flow [2024-11-19 14:01:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:01:22,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:01:22,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-11-19 14:01:22,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-11-19 14:01:22,401 INFO L175 Difference]: Start difference. First operand has 74 places, 86 transitions, 179 flow. Second operand 3 states and 168 transitions. [2024-11-19 14:01:22,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 81 transitions, 257 flow [2024-11-19 14:01:22,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 81 transitions, 257 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:01:22,411 INFO L231 Difference]: Finished difference. Result has 77 places, 77 transitions, 175 flow [2024-11-19 14:01:22,413 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=77, PETRI_TRANSITIONS=77} [2024-11-19 14:01:22,420 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 3 predicate places. [2024-11-19 14:01:22,420 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 77 transitions, 175 flow [2024-11-19 14:01:22,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:22,421 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:22,421 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-19 14:01:22,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 14:01:22,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 14:01:22,623 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-19 14:01:22,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:22,624 INFO L85 PathProgramCache]: Analyzing trace with hash 22626824, now seen corresponding path program 1 times [2024-11-19 14:01:22,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:22,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116153706] [2024-11-19 14:01:22,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:22,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:22,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:22,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:22,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116153706] [2024-11-19 14:01:22,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116153706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:22,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:01:22,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:01:22,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977416340] [2024-11-19 14:01:22,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:22,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:01:22,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:22,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:01:22,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:01:22,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2024-11-19 14:01:22,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:22,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:22,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2024-11-19 14:01:22,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:23,098 INFO L124 PetriNetUnfolderBase]: 126/427 cut-off events. [2024-11-19 14:01:23,098 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 14:01:23,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 427 events. 126/427 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1956 event pairs, 105 based on Foata normal form. 4/351 useless extension candidates. Maximal degree in co-relation 677. Up to 269 conditions per place. [2024-11-19 14:01:23,103 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 40 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-11-19 14:01:23,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 79 transitions, 263 flow [2024-11-19 14:01:23,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:01:23,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:01:23,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2024-11-19 14:01:23,106 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5938697318007663 [2024-11-19 14:01:23,106 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 175 flow. Second operand 3 states and 155 transitions. [2024-11-19 14:01:23,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 79 transitions, 263 flow [2024-11-19 14:01:23,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 79 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:01:23,109 INFO L231 Difference]: Finished difference. Result has 79 places, 78 transitions, 189 flow [2024-11-19 14:01:23,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=79, PETRI_TRANSITIONS=78} [2024-11-19 14:01:23,110 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2024-11-19 14:01:23,111 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 78 transitions, 189 flow [2024-11-19 14:01:23,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:23,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:23,112 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 14:01:23,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 14:01:23,113 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-19 14:01:23,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:23,114 INFO L85 PathProgramCache]: Analyzing trace with hash 269573235, now seen corresponding path program 1 times [2024-11-19 14:01:23,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:23,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744193883] [2024-11-19 14:01:23,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:23,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:23,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:23,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:23,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744193883] [2024-11-19 14:01:23,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744193883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:23,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:01:23,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:01:23,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669018949] [2024-11-19 14:01:23,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:23,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:01:23,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:23,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:01:23,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:01:23,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2024-11-19 14:01:23,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 78 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:23,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:23,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2024-11-19 14:01:23,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:23,576 INFO L124 PetriNetUnfolderBase]: 126/423 cut-off events. [2024-11-19 14:01:23,576 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-19 14:01:23,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 423 events. 126/423 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1941 event pairs, 105 based on Foata normal form. 4/351 useless extension candidates. Maximal degree in co-relation 664. Up to 273 conditions per place. [2024-11-19 14:01:23,582 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 41 selfloop transitions, 3 changer transitions 0/79 dead transitions. [2024-11-19 14:01:23,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 279 flow [2024-11-19 14:01:23,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:01:23,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:01:23,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-11-19 14:01:23,587 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5316091954022989 [2024-11-19 14:01:23,587 INFO L175 Difference]: Start difference. First operand has 79 places, 78 transitions, 189 flow. Second operand 4 states and 185 transitions. [2024-11-19 14:01:23,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 79 transitions, 279 flow [2024-11-19 14:01:23,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 277 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:01:23,590 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 205 flow [2024-11-19 14:01:23,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=205, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2024-11-19 14:01:23,591 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 9 predicate places. [2024-11-19 14:01:23,591 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 205 flow [2024-11-19 14:01:23,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:23,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:23,592 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:01:23,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:01:23,592 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-19 14:01:23,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:23,593 INFO L85 PathProgramCache]: Analyzing trace with hash -731871118, now seen corresponding path program 1 times [2024-11-19 14:01:23,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:23,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763153884] [2024-11-19 14:01:23,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:23,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:23,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:23,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763153884] [2024-11-19 14:01:23,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763153884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:01:23,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152633613] [2024-11-19 14:01:23,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:23,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:23,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:23,783 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:01:23,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 14:01:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:23,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:01:23,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:23,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:23,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:01:24,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:24,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152633613] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:01:24,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:01:24,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 14:01:24,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396193712] [2024-11-19 14:01:24,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:01:24,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 14:01:24,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:24,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 14:01:24,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 14:01:24,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-11-19 14:01:24,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 205 flow. Second operand has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:24,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:24,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-11-19 14:01:24,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:24,452 INFO L124 PetriNetUnfolderBase]: 126/439 cut-off events. [2024-11-19 14:01:24,453 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-19 14:01:24,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 784 conditions, 439 events. 126/439 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2035 event pairs, 105 based on Foata normal form. 6/369 useless extension candidates. Maximal degree in co-relation 683. Up to 263 conditions per place. [2024-11-19 14:01:24,458 INFO L140 encePairwiseOnDemand]: 80/87 looper letters, 44 selfloop transitions, 9 changer transitions 0/87 dead transitions. [2024-11-19 14:01:24,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 87 transitions, 341 flow [2024-11-19 14:01:24,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 14:01:24,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 14:01:24,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 361 transitions. [2024-11-19 14:01:24,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4610472541507024 [2024-11-19 14:01:24,461 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 205 flow. Second operand 9 states and 361 transitions. [2024-11-19 14:01:24,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 87 transitions, 341 flow [2024-11-19 14:01:24,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 87 transitions, 337 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:01:24,468 INFO L231 Difference]: Finished difference. Result has 93 places, 83 transitions, 255 flow [2024-11-19 14:01:24,469 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=255, PETRI_PLACES=93, PETRI_TRANSITIONS=83} [2024-11-19 14:01:24,470 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2024-11-19 14:01:24,471 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 83 transitions, 255 flow [2024-11-19 14:01:24,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:24,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:24,472 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-19 14:01:24,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 14:01:24,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-19 14:01:24,674 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-19 14:01:24,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:24,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1046523997, now seen corresponding path program 1 times [2024-11-19 14:01:24,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:24,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755470703] [2024-11-19 14:01:24,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:24,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:24,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:24,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755470703] [2024-11-19 14:01:24,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755470703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:01:24,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807745975] [2024-11-19 14:01:24,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:24,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:24,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:24,928 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:01:24,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 14:01:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:25,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:01:25,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:25,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:25,170 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:01:25,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807745975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:25,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:01:25,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-19 14:01:25,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306677449] [2024-11-19 14:01:25,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:25,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:01:25,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:25,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:01:25,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:01:25,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2024-11-19 14:01:25,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 83 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:25,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:25,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2024-11-19 14:01:25,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:25,619 INFO L124 PetriNetUnfolderBase]: 126/435 cut-off events. [2024-11-19 14:01:25,620 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-11-19 14:01:25,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 435 events. 126/435 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2008 event pairs, 105 based on Foata normal form. 4/363 useless extension candidates. Maximal degree in co-relation 700. Up to 261 conditions per place. [2024-11-19 14:01:25,623 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 37 selfloop transitions, 8 changer transitions 0/81 dead transitions. [2024-11-19 14:01:25,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 81 transitions, 331 flow [2024-11-19 14:01:25,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:01:25,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:01:25,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 253 transitions. [2024-11-19 14:01:25,624 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4846743295019157 [2024-11-19 14:01:25,624 INFO L175 Difference]: Start difference. First operand has 93 places, 83 transitions, 255 flow. Second operand 6 states and 253 transitions. [2024-11-19 14:01:25,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 81 transitions, 331 flow [2024-11-19 14:01:25,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 81 transitions, 323 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 14:01:25,628 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 249 flow [2024-11-19 14:01:25,628 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=249, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2024-11-19 14:01:25,629 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2024-11-19 14:01:25,629 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 249 flow [2024-11-19 14:01:25,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:25,630 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:25,630 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2024-11-19 14:01:25,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 14:01:25,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:25,831 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-19 14:01:25,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:25,832 INFO L85 PathProgramCache]: Analyzing trace with hash -2073257333, now seen corresponding path program 1 times [2024-11-19 14:01:25,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:25,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167815057] [2024-11-19 14:01:25,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:25,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:25,984 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 14:01:25,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:25,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167815057] [2024-11-19 14:01:25,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167815057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:25,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:01:25,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:01:25,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864412838] [2024-11-19 14:01:25,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:25,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:01:25,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:25,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:01:25,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:01:26,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2024-11-19 14:01:26,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:26,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:26,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2024-11-19 14:01:26,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:26,190 INFO L124 PetriNetUnfolderBase]: 126/433 cut-off events. [2024-11-19 14:01:26,191 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2024-11-19 14:01:26,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 433 events. 126/433 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2003 event pairs, 105 based on Foata normal form. 2/359 useless extension candidates. Maximal degree in co-relation 706. Up to 267 conditions per place. [2024-11-19 14:01:26,193 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 36 selfloop transitions, 9 changer transitions 0/81 dead transitions. [2024-11-19 14:01:26,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 81 transitions, 337 flow [2024-11-19 14:01:26,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:01:26,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:01:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2024-11-19 14:01:26,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5287356321839081 [2024-11-19 14:01:26,195 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 249 flow. Second operand 4 states and 184 transitions. [2024-11-19 14:01:26,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 81 transitions, 337 flow [2024-11-19 14:01:26,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 81 transitions, 321 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-19 14:01:26,198 INFO L231 Difference]: Finished difference. Result has 90 places, 81 transitions, 257 flow [2024-11-19 14:01:26,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=257, PETRI_PLACES=90, PETRI_TRANSITIONS=81} [2024-11-19 14:01:26,199 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 16 predicate places. [2024-11-19 14:01:26,200 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 81 transitions, 257 flow [2024-11-19 14:01:26,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:26,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:26,200 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-11-19 14:01:26,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 14:01:26,201 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-19 14:01:26,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:26,201 INFO L85 PathProgramCache]: Analyzing trace with hash 464551474, now seen corresponding path program 2 times [2024-11-19 14:01:26,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:26,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592076146] [2024-11-19 14:01:26,202 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:01:26,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:26,251 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:01:26,252 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:01:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 14:01:26,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:26,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592076146] [2024-11-19 14:01:26,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592076146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:26,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:01:26,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:01:26,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065405014] [2024-11-19 14:01:26,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:26,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:01:26,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:26,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:01:26,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:01:26,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2024-11-19 14:01:26,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 81 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:26,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:26,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2024-11-19 14:01:26,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:26,571 INFO L124 PetriNetUnfolderBase]: 126/431 cut-off events. [2024-11-19 14:01:26,571 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-11-19 14:01:26,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 431 events. 126/431 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1995 event pairs, 105 based on Foata normal form. 2/359 useless extension candidates. Maximal degree in co-relation 688. Up to 272 conditions per place. [2024-11-19 14:01:26,574 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 51 selfloop transitions, 3 changer transitions 0/89 dead transitions. [2024-11-19 14:01:26,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 89 transitions, 437 flow [2024-11-19 14:01:26,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:01:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:01:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 188 transitions. [2024-11-19 14:01:26,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5402298850574713 [2024-11-19 14:01:26,576 INFO L175 Difference]: Start difference. First operand has 90 places, 81 transitions, 257 flow. Second operand 4 states and 188 transitions. [2024-11-19 14:01:26,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 89 transitions, 437 flow [2024-11-19 14:01:26,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 413 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-19 14:01:26,579 INFO L231 Difference]: Finished difference. Result has 93 places, 82 transitions, 268 flow [2024-11-19 14:01:26,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=93, PETRI_TRANSITIONS=82} [2024-11-19 14:01:26,580 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2024-11-19 14:01:26,580 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 82 transitions, 268 flow [2024-11-19 14:01:26,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:26,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:26,581 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:01:26,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 14:01:26,581 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-19 14:01:26,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:26,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1564796048, now seen corresponding path program 1 times [2024-11-19 14:01:26,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:26,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135373221] [2024-11-19 14:01:26,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:26,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:26,795 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 14:01:26,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:26,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135373221] [2024-11-19 14:01:26,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135373221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:01:26,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674493103] [2024-11-19 14:01:26,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:26,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:26,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:26,798 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:01:26,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 14:01:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:27,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 14:01:27,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:27,131 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:27,131 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:01:27,234 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:27,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674493103] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:01:27,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:01:27,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2024-11-19 14:01:27,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162899424] [2024-11-19 14:01:27,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:01:27,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 14:01:27,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:27,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 14:01:27,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-19 14:01:27,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 87 [2024-11-19 14:01:27,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 82 transitions, 268 flow. Second operand has 19 states, 19 states have (on average 33.8421052631579) internal successors, (643), 19 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:27,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:27,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 87 [2024-11-19 14:01:27,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:28,512 INFO L124 PetriNetUnfolderBase]: 131/533 cut-off events. [2024-11-19 14:01:28,513 INFO L125 PetriNetUnfolderBase]: For 380/380 co-relation queries the response was YES. [2024-11-19 14:01:28,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1172 conditions, 533 events. 131/533 cut-off events. For 380/380 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2151 event pairs, 105 based on Foata normal form. 13/472 useless extension candidates. Maximal degree in co-relation 1019. Up to 262 conditions per place. [2024-11-19 14:01:28,517 INFO L140 encePairwiseOnDemand]: 78/87 looper letters, 80 selfloop transitions, 55 changer transitions 0/167 dead transitions. [2024-11-19 14:01:28,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 167 transitions, 1141 flow [2024-11-19 14:01:28,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-19 14:01:28,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-11-19 14:01:28,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 1556 transitions. [2024-11-19 14:01:28,544 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.406478578892372 [2024-11-19 14:01:28,544 INFO L175 Difference]: Start difference. First operand has 93 places, 82 transitions, 268 flow. Second operand 44 states and 1556 transitions. [2024-11-19 14:01:28,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 167 transitions, 1141 flow [2024-11-19 14:01:28,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 167 transitions, 1137 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:01:28,550 INFO L231 Difference]: Finished difference. Result has 147 places, 130 transitions, 823 flow [2024-11-19 14:01:28,550 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=823, PETRI_PLACES=147, PETRI_TRANSITIONS=130} [2024-11-19 14:01:28,551 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 73 predicate places. [2024-11-19 14:01:28,551 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 130 transitions, 823 flow [2024-11-19 14:01:28,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 33.8421052631579) internal successors, (643), 19 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:28,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:28,552 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2024-11-19 14:01:28,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 14:01:28,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:28,753 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-19 14:01:28,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:28,754 INFO L85 PathProgramCache]: Analyzing trace with hash -574005743, now seen corresponding path program 1 times [2024-11-19 14:01:28,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:28,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694483607] [2024-11-19 14:01:28,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:28,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:29,572 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:01:29,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:29,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694483607] [2024-11-19 14:01:29,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694483607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:01:29,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765766083] [2024-11-19 14:01:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:29,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:29,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:29,576 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:01:29,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 14:01:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:30,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 14:01:30,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:30,140 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:01:30,141 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:01:30,416 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:01:30,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765766083] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:01:30,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:01:30,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-19 14:01:30,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277275911] [2024-11-19 14:01:30,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:01:30,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-19 14:01:30,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:30,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-19 14:01:30,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 14:01:30,616 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-11-19 14:01:30,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 130 transitions, 823 flow. Second operand has 34 states, 34 states have (on average 35.6764705882353) internal successors, (1213), 34 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:30,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:30,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-11-19 14:01:30,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:32,421 INFO L124 PetriNetUnfolderBase]: 127/685 cut-off events. [2024-11-19 14:01:32,421 INFO L125 PetriNetUnfolderBase]: For 2683/2683 co-relation queries the response was YES. [2024-11-19 14:01:32,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2063 conditions, 685 events. 127/685 cut-off events. For 2683/2683 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2238 event pairs, 105 based on Foata normal form. 24/635 useless extension candidates. Maximal degree in co-relation 1689. Up to 266 conditions per place. [2024-11-19 14:01:32,427 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 113 selfloop transitions, 93 changer transitions 0/240 dead transitions. [2024-11-19 14:01:32,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 240 transitions, 2467 flow [2024-11-19 14:01:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-19 14:01:32,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-19 14:01:32,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1171 transitions. [2024-11-19 14:01:32,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43418613274008155 [2024-11-19 14:01:32,434 INFO L175 Difference]: Start difference. First operand has 147 places, 130 transitions, 823 flow. Second operand 31 states and 1171 transitions. [2024-11-19 14:01:32,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 240 transitions, 2467 flow [2024-11-19 14:01:32,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 240 transitions, 2359 flow, removed 43 selfloop flow, removed 5 redundant places. [2024-11-19 14:01:32,454 INFO L231 Difference]: Finished difference. Result has 181 places, 181 transitions, 1560 flow [2024-11-19 14:01:32,455 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=763, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1560, PETRI_PLACES=181, PETRI_TRANSITIONS=181} [2024-11-19 14:01:32,456 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 107 predicate places. [2024-11-19 14:01:32,457 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 181 transitions, 1560 flow [2024-11-19 14:01:32,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 35.6764705882353) internal successors, (1213), 34 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:32,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:32,458 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2024-11-19 14:01:32,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 14:01:32,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:32,663 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-19 14:01:32,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:32,663 INFO L85 PathProgramCache]: Analyzing trace with hash 268093201, now seen corresponding path program 2 times [2024-11-19 14:01:32,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:32,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161006282] [2024-11-19 14:01:32,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:01:32,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:32,958 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:01:32,959 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:01:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:01:34,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:34,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161006282] [2024-11-19 14:01:34,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161006282] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:01:34,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910059599] [2024-11-19 14:01:34,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:01:34,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:34,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:34,863 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:01:34,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 14:01:35,587 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:01:35,587 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:01:35,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-19 14:01:35,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:35,741 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:01:35,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:01:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:01:36,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910059599] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:01:36,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:01:36,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-19 14:01:36,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978146918] [2024-11-19 14:01:36,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:01:36,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-19 14:01:36,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:36,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-19 14:01:36,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-19 14:01:36,764 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-11-19 14:01:36,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 181 transitions, 1560 flow. Second operand has 63 states, 63 states have (on average 35.61904761904762) internal successors, (2244), 63 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:36,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:36,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-11-19 14:01:36,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:40,138 INFO L124 PetriNetUnfolderBase]: 127/970 cut-off events. [2024-11-19 14:01:40,139 INFO L125 PetriNetUnfolderBase]: For 9666/9666 co-relation queries the response was YES. [2024-11-19 14:01:40,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3707 conditions, 970 events. 127/970 cut-off events. For 9666/9666 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2370 event pairs, 105 based on Foata normal form. 45/941 useless extension candidates. Maximal degree in co-relation 3042. Up to 266 conditions per place. [2024-11-19 14:01:40,147 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 203 selfloop transitions, 183 changer transitions 0/420 dead transitions. [2024-11-19 14:01:40,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 420 transitions, 5406 flow [2024-11-19 14:01:40,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-19 14:01:40,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-11-19 14:01:40,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 2273 transitions. [2024-11-19 14:01:40,153 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42830224232146225 [2024-11-19 14:01:40,153 INFO L175 Difference]: Start difference. First operand has 181 places, 181 transitions, 1560 flow. Second operand 61 states and 2273 transitions. [2024-11-19 14:01:40,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 420 transitions, 5406 flow [2024-11-19 14:01:40,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 420 transitions, 5334 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-19 14:01:40,193 INFO L231 Difference]: Finished difference. Result has 245 places, 274 transitions, 3230 flow [2024-11-19 14:01:40,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=1488, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=3230, PETRI_PLACES=245, PETRI_TRANSITIONS=274} [2024-11-19 14:01:40,196 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 171 predicate places. [2024-11-19 14:01:40,197 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 274 transitions, 3230 flow [2024-11-19 14:01:40,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 35.61904761904762) internal successors, (2244), 63 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:01:40,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:40,199 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2024-11-19 14:01:40,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 14:01:40,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:40,400 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-19 14:01:40,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:40,401 INFO L85 PathProgramCache]: Analyzing trace with hash 173509819, now seen corresponding path program 3 times [2024-11-19 14:01:40,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:40,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683931954] [2024-11-19 14:01:40,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:01:40,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms