./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_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_93-evilcollapse_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 dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:01:37,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:01:37,532 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:01:37,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:01:37,536 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:01:37,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:01:37,563 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:01:37,564 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:01:37,564 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:01:37,565 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:01:37,565 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:01:37,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:01:37,566 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:01:37,566 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:01:37,566 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:01:37,567 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:01:37,567 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:01:37,567 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:01:37,568 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:01:37,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:01:37,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:01:37,569 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:01:37,569 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:01:37,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:01:37,569 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:01:37,570 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:01:37,570 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:01:37,570 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:01:37,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:01:37,570 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:01:37,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:01:37,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:01:37,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:01:37,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:01:37,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:01:37,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:01:37,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:01:37,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:01:37,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:01:37,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:01:37,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:01:37,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:01:37,573 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:01:37,573 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:01:37,574 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2024-11-19 14:01:37,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:01:37,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:01:37,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:01:37,896 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:01:37,897 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:01:37,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-11-19 14:01:39,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:01:39,467 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:01:39,468 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-11-19 14:01:39,488 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f94e9d9/48e5034ccfdb46d0b809e931a2933f65/FLAGcf4958729 [2024-11-19 14:01:39,502 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f94e9d9/48e5034ccfdb46d0b809e931a2933f65 [2024-11-19 14:01:39,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:01:39,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:01:39,506 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:01:39,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:01:39,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:01:39,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:39" (1/1) ... [2024-11-19 14:01:39,515 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@512d2d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:39, skipping insertion in model container [2024-11-19 14:01:39,516 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:39" (1/1) ... [2024-11-19 14:01:39,563 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:01:39,930 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:39,930 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:39,930 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:39,931 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:39,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:01:39,990 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:01:40,032 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:40,035 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:40,038 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:40,038 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-19 14:01:40,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:01:40,101 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:01:40,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40 WrapperNode [2024-11-19 14:01:40,102 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:01:40,102 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:01:40,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:01:40,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:01:40,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40" (1/1) ... [2024-11-19 14:01:40,123 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40" (1/1) ... [2024-11-19 14:01:40,160 INFO L138 Inliner]: procedures = 281, calls = 126, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 323 [2024-11-19 14:01:40,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:01:40,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:01:40,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:01:40,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:01:40,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40" (1/1) ... [2024-11-19 14:01:40,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40" (1/1) ... [2024-11-19 14:01:40,179 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40" (1/1) ... [2024-11-19 14:01:40,213 INFO L175 MemorySlicer]: Split 98 memory accesses to 4 slices as follows [2, 89, 5, 2]. 91 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 70, 5, 0]. The 12 writes are split as follows [0, 11, 0, 1]. [2024-11-19 14:01:40,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40" (1/1) ... [2024-11-19 14:01:40,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40" (1/1) ... [2024-11-19 14:01:40,235 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40" (1/1) ... [2024-11-19 14:01:40,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40" (1/1) ... [2024-11-19 14:01:40,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40" (1/1) ... [2024-11-19 14:01:40,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40" (1/1) ... [2024-11-19 14:01:40,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:01:40,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:01:40,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:01:40,255 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:01:40,256 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40" (1/1) ... [2024-11-19 14:01:40,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:01:40,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:40,286 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 14:01:40,288 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 14:01:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 14:01:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 14:01:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 14:01:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 14:01:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 14:01:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 14:01:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 14:01:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 14:01:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 14:01:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 14:01:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 14:01:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:01:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:01:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 14:01:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 14:01:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:01:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:01:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 14:01:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 14:01:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 14:01:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 14:01:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:01:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 14:01:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 14:01:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 14:01:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 14:01:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 14:01:40,325 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 14:01:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:01:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:01:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 14:01:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 14:01:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:01:40,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:01:40,328 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 14:01:40,459 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:01:40,460 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:01:40,845 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:01:40,845 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:01:41,392 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:01:41,392 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-19 14:01:41,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:01:41 BoogieIcfgContainer [2024-11-19 14:01:41,393 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:01:41,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:01:41,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:01:41,399 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:01:41,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:01:39" (1/3) ... [2024-11-19 14:01:41,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7582bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:01:41, skipping insertion in model container [2024-11-19 14:01:41,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:40" (2/3) ... [2024-11-19 14:01:41,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7582bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:01:41, skipping insertion in model container [2024-11-19 14:01:41,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:01:41" (3/3) ... [2024-11-19 14:01:41,401 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2024-11-19 14:01:41,418 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:01:41,419 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-19 14:01:41,419 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:01:41,484 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 14:01:41,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 87 transitions, 181 flow [2024-11-19 14:01:41,554 INFO L124 PetriNetUnfolderBase]: 16/91 cut-off events. [2024-11-19 14:01:41,555 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 14:01:41,558 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 272 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 14:01:41,559 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 87 transitions, 181 flow [2024-11-19 14:01:41,562 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 86 transitions, 179 flow [2024-11-19 14:01:41,570 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:01:41,580 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;@376a2f61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:01:41,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-19 14:01:41,588 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:01:41,589 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-11-19 14:01:41,589 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:01:41,589 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:41,590 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-19 14:01:41,591 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 14:01:41,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:41,596 INFO L85 PathProgramCache]: Analyzing trace with hash 26727985, now seen corresponding path program 1 times [2024-11-19 14:01:41,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:41,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557509747] [2024-11-19 14:01:41,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:41,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 14:01:41,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [332625909] [2024-11-19 14:01:41,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:41,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:41,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:41,790 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 14:01:41,791 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 14:01:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:41,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 14:01:41,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:41,949 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 14:01:41,953 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:01:41,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:41,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557509747] [2024-11-19 14:01:41,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 14:01:41,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332625909] [2024-11-19 14:01:41,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332625909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:41,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:01:41,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:01:41,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410312600] [2024-11-19 14:01:41,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:41,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:01:41,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:41,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:01:41,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:01:42,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2024-11-19 14:01:42,004 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 14:01:42,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:42,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2024-11-19 14:01:42,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:42,232 INFO L124 PetriNetUnfolderBase]: 126/413 cut-off events. [2024-11-19 14:01:42,232 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 14:01:42,234 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 1887 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 14:01:42,237 INFO L140 encePairwiseOnDemand]: 72/87 looper letters, 42 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2024-11-19 14:01:42,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 81 transitions, 257 flow [2024-11-19 14:01:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:01:42,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:01:42,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-11-19 14:01:42,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-11-19 14:01:42,250 INFO L175 Difference]: Start difference. First operand has 74 places, 86 transitions, 179 flow. Second operand 3 states and 168 transitions. [2024-11-19 14:01:42,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 81 transitions, 257 flow [2024-11-19 14:01:42,258 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 14:01:42,262 INFO L231 Difference]: Finished difference. Result has 77 places, 77 transitions, 175 flow [2024-11-19 14:01:42,263 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 14:01:42,266 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 3 predicate places. [2024-11-19 14:01:42,268 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 77 transitions, 175 flow [2024-11-19 14:01:42,268 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 14:01:42,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:42,269 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-19 14:01:42,284 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 14:01:42,470 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 14:01:42,471 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 14:01:42,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:42,472 INFO L85 PathProgramCache]: Analyzing trace with hash 26728002, now seen corresponding path program 1 times [2024-11-19 14:01:42,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:42,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879936714] [2024-11-19 14:01:42,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:42,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:42,617 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 14:01:42,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:42,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879936714] [2024-11-19 14:01:42,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879936714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:42,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:01:42,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:01:42,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981104893] [2024-11-19 14:01:42,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:42,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:01:42,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:42,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:01:42,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:01:42,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2024-11-19 14:01:42,628 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 14:01:42,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:42,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2024-11-19 14:01:42,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:42,824 INFO L124 PetriNetUnfolderBase]: 126/427 cut-off events. [2024-11-19 14:01:42,825 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 14:01:42,826 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 1959 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 14:01:42,827 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 40 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-11-19 14:01:42,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 79 transitions, 263 flow [2024-11-19 14:01:42,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:01:42,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:01:42,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2024-11-19 14:01:42,829 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5938697318007663 [2024-11-19 14:01:42,829 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 175 flow. Second operand 3 states and 155 transitions. [2024-11-19 14:01:42,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 79 transitions, 263 flow [2024-11-19 14:01:42,830 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 14:01:42,831 INFO L231 Difference]: Finished difference. Result has 79 places, 78 transitions, 189 flow [2024-11-19 14:01:42,832 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 14:01:42,832 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2024-11-19 14:01:42,833 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 78 transitions, 189 flow [2024-11-19 14:01:42,833 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 14:01:42,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:42,833 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 14:01:42,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 14:01:42,833 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 14:01:42,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:42,834 INFO L85 PathProgramCache]: Analyzing trace with hash -84183153, now seen corresponding path program 1 times [2024-11-19 14:01:42,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:42,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149603392] [2024-11-19 14:01:42,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:42,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:42,973 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 14:01:42,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:42,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149603392] [2024-11-19 14:01:42,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149603392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:42,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:01:42,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:01:42,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226435761] [2024-11-19 14:01:42,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:42,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:01:42,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:42,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:01:42,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:01:42,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2024-11-19 14:01:42,989 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 14:01:42,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:42,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2024-11-19 14:01:42,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:43,228 INFO L124 PetriNetUnfolderBase]: 126/423 cut-off events. [2024-11-19 14:01:43,228 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-19 14:01:43,229 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 1945 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 14:01:43,231 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 41 selfloop transitions, 3 changer transitions 0/79 dead transitions. [2024-11-19 14:01:43,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 279 flow [2024-11-19 14:01:43,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:01:43,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:01:43,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-11-19 14:01:43,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5316091954022989 [2024-11-19 14:01:43,233 INFO L175 Difference]: Start difference. First operand has 79 places, 78 transitions, 189 flow. Second operand 4 states and 185 transitions. [2024-11-19 14:01:43,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 79 transitions, 279 flow [2024-11-19 14:01:43,235 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 14:01:43,236 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 205 flow [2024-11-19 14:01:43,236 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 14:01:43,237 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 9 predicate places. [2024-11-19 14:01:43,237 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 205 flow [2024-11-19 14:01:43,237 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 14:01:43,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:43,237 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:01:43,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:01:43,237 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 14:01:43,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:43,238 INFO L85 PathProgramCache]: Analyzing trace with hash 361472709, now seen corresponding path program 1 times [2024-11-19 14:01:43,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:43,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600703499] [2024-11-19 14:01:43,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:43,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:43,368 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 14:01:43,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:43,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600703499] [2024-11-19 14:01:43,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600703499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:01:43,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136429614] [2024-11-19 14:01:43,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:43,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:43,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:43,371 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 14:01:43,372 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 14:01:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:43,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:01:43,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:43,571 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 14:01:43,571 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:01:43,601 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 14:01:43,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136429614] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:01:43,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:01:43,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 14:01:43,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532106738] [2024-11-19 14:01:43,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:01:43,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 14:01:43,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:43,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 14:01:43,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 14:01:43,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-11-19 14:01:43,640 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 14:01:43,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:43,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-11-19 14:01:43,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:44,033 INFO L124 PetriNetUnfolderBase]: 126/439 cut-off events. [2024-11-19 14:01:44,034 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-19 14:01:44,035 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 2045 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 14:01:44,038 INFO L140 encePairwiseOnDemand]: 80/87 looper letters, 44 selfloop transitions, 9 changer transitions 0/87 dead transitions. [2024-11-19 14:01:44,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 87 transitions, 341 flow [2024-11-19 14:01:44,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 14:01:44,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 14:01:44,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 361 transitions. [2024-11-19 14:01:44,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4610472541507024 [2024-11-19 14:01:44,041 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 205 flow. Second operand 9 states and 361 transitions. [2024-11-19 14:01:44,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 87 transitions, 341 flow [2024-11-19 14:01:44,044 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 14:01:44,046 INFO L231 Difference]: Finished difference. Result has 93 places, 83 transitions, 255 flow [2024-11-19 14:01:44,046 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 14:01:44,047 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2024-11-19 14:01:44,047 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 83 transitions, 255 flow [2024-11-19 14:01:44,047 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 14:01:44,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:44,048 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-19 14:01:44,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 14:01:44,248 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 14:01:44,250 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 14:01:44,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:44,251 INFO L85 PathProgramCache]: Analyzing trace with hash -517066926, now seen corresponding path program 1 times [2024-11-19 14:01:44,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:44,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664479621] [2024-11-19 14:01:44,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:44,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:44,420 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 14:01:44,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:44,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664479621] [2024-11-19 14:01:44,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664479621] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:01:44,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536819457] [2024-11-19 14:01:44,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:44,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:44,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:44,424 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 14:01:44,425 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 14:01:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:44,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:01:44,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:44,619 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 14:01:44,619 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:01:44,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536819457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:44,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:01:44,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-19 14:01:44,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834893546] [2024-11-19 14:01:44,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:44,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:01:44,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:44,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:01:44,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:01:44,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2024-11-19 14:01:44,667 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 14:01:44,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:44,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2024-11-19 14:01:44,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:44,932 INFO L124 PetriNetUnfolderBase]: 126/435 cut-off events. [2024-11-19 14:01:44,932 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-11-19 14:01:44,933 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 2004 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 14:01:44,934 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 37 selfloop transitions, 8 changer transitions 0/81 dead transitions. [2024-11-19 14:01:44,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 81 transitions, 331 flow [2024-11-19 14:01:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:01:44,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:01:44,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 253 transitions. [2024-11-19 14:01:44,936 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4846743295019157 [2024-11-19 14:01:44,936 INFO L175 Difference]: Start difference. First operand has 93 places, 83 transitions, 255 flow. Second operand 6 states and 253 transitions. [2024-11-19 14:01:44,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 81 transitions, 331 flow [2024-11-19 14:01:44,937 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 14:01:44,938 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 249 flow [2024-11-19 14:01:44,938 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 14:01:44,939 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2024-11-19 14:01:44,939 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 249 flow [2024-11-19 14:01:44,939 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 14:01:44,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:44,939 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2024-11-19 14:01:44,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 14:01:45,140 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 14:01:45,140 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 14:01:45,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:45,141 INFO L85 PathProgramCache]: Analyzing trace with hash 486823915, now seen corresponding path program 1 times [2024-11-19 14:01:45,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:45,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99378829] [2024-11-19 14:01:45,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:45,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:45,263 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 14:01:45,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:45,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99378829] [2024-11-19 14:01:45,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99378829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:45,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:01:45,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:01:45,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251868015] [2024-11-19 14:01:45,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:45,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:01:45,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:45,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:01:45,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:01:45,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2024-11-19 14:01:45,279 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 14:01:45,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:45,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2024-11-19 14:01:45,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:45,439 INFO L124 PetriNetUnfolderBase]: 126/433 cut-off events. [2024-11-19 14:01:45,439 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2024-11-19 14:01:45,440 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 2005 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 14:01:45,443 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 36 selfloop transitions, 9 changer transitions 0/81 dead transitions. [2024-11-19 14:01:45,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 81 transitions, 337 flow [2024-11-19 14:01:45,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:01:45,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:01:45,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2024-11-19 14:01:45,444 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5287356321839081 [2024-11-19 14:01:45,444 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 249 flow. Second operand 4 states and 184 transitions. [2024-11-19 14:01:45,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 81 transitions, 337 flow [2024-11-19 14:01:45,446 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 14:01:45,448 INFO L231 Difference]: Finished difference. Result has 90 places, 81 transitions, 257 flow [2024-11-19 14:01:45,449 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 14:01:45,450 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 16 predicate places. [2024-11-19 14:01:45,451 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 81 transitions, 257 flow [2024-11-19 14:01:45,451 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 14:01:45,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:45,451 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-11-19 14:01:45,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 14:01:45,451 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 14:01:45,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:45,452 INFO L85 PathProgramCache]: Analyzing trace with hash -313625371, now seen corresponding path program 2 times [2024-11-19 14:01:45,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:45,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98483002] [2024-11-19 14:01:45,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:01:45,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:45,504 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:01:45,504 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:01:45,549 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 14:01:45,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:45,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98483002] [2024-11-19 14:01:45,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98483002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:45,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:01:45,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:01:45,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557731472] [2024-11-19 14:01:45,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:45,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:01:45,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:45,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:01:45,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:01:45,562 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2024-11-19 14:01:45,563 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 14:01:45,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:45,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2024-11-19 14:01:45,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:45,743 INFO L124 PetriNetUnfolderBase]: 126/431 cut-off events. [2024-11-19 14:01:45,744 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-11-19 14:01:45,746 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 1984 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 14:01:45,747 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 51 selfloop transitions, 3 changer transitions 0/89 dead transitions. [2024-11-19 14:01:45,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 89 transitions, 437 flow [2024-11-19 14:01:45,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:01:45,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:01:45,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 188 transitions. [2024-11-19 14:01:45,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5402298850574713 [2024-11-19 14:01:45,749 INFO L175 Difference]: Start difference. First operand has 90 places, 81 transitions, 257 flow. Second operand 4 states and 188 transitions. [2024-11-19 14:01:45,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 89 transitions, 437 flow [2024-11-19 14:01:45,750 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 14:01:45,753 INFO L231 Difference]: Finished difference. Result has 93 places, 82 transitions, 268 flow [2024-11-19 14:01:45,754 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 14:01:45,755 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2024-11-19 14:01:45,755 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 82 transitions, 268 flow [2024-11-19 14:01:45,755 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 14:01:45,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:45,756 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:01:45,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 14:01:45,757 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 14:01:45,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:45,757 INFO L85 PathProgramCache]: Analyzing trace with hash 117961882, now seen corresponding path program 1 times [2024-11-19 14:01:45,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:45,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603266521] [2024-11-19 14:01:45,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:45,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:45,968 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 14:01:45,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:45,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603266521] [2024-11-19 14:01:45,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603266521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:01:45,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956560764] [2024-11-19 14:01:45,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:45,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:45,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:45,972 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 14:01:45,974 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 14:01:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:46,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 14:01:46,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:46,237 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 14:01:46,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:01:46,325 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 14:01:46,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956560764] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:01:46,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:01:46,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2024-11-19 14:01:46,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842602737] [2024-11-19 14:01:46,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:01:46,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 14:01:46,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:46,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 14:01:46,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-19 14:01:46,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 87 [2024-11-19 14:01:46,400 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 14:01:46,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:46,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 87 [2024-11-19 14:01:46,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:47,450 INFO L124 PetriNetUnfolderBase]: 131/533 cut-off events. [2024-11-19 14:01:47,450 INFO L125 PetriNetUnfolderBase]: For 380/380 co-relation queries the response was YES. [2024-11-19 14:01:47,451 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 2169 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 14:01:47,453 INFO L140 encePairwiseOnDemand]: 78/87 looper letters, 80 selfloop transitions, 55 changer transitions 0/167 dead transitions. [2024-11-19 14:01:47,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 167 transitions, 1141 flow [2024-11-19 14:01:47,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-19 14:01:47,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-11-19 14:01:47,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 1556 transitions. [2024-11-19 14:01:47,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.406478578892372 [2024-11-19 14:01:47,459 INFO L175 Difference]: Start difference. First operand has 93 places, 82 transitions, 268 flow. Second operand 44 states and 1556 transitions. [2024-11-19 14:01:47,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 167 transitions, 1141 flow [2024-11-19 14:01:47,461 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 14:01:47,468 INFO L231 Difference]: Finished difference. Result has 147 places, 130 transitions, 823 flow [2024-11-19 14:01:47,468 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 14:01:47,473 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 73 predicate places. [2024-11-19 14:01:47,473 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 130 transitions, 823 flow [2024-11-19 14:01:47,473 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 14:01:47,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:47,473 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2024-11-19 14:01:47,494 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 14:01:47,674 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 14:01:47,674 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 14:01:47,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:47,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1624490313, now seen corresponding path program 1 times [2024-11-19 14:01:47,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:47,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015126695] [2024-11-19 14:01:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:47,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:48,355 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 14:01:48,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:48,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015126695] [2024-11-19 14:01:48,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015126695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:01:48,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719531547] [2024-11-19 14:01:48,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:48,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:48,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:48,358 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 14:01:48,359 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 14:01:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:48,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 14:01:48,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:48,771 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 14:01:48,771 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:01:49,045 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 14:01:49,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719531547] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:01:49,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:01:49,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-19 14:01:49,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545086017] [2024-11-19 14:01:49,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:01:49,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-19 14:01:49,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:49,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-19 14:01:49,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 14:01:49,225 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-11-19 14:01:49,228 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 14:01:49,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:49,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-11-19 14:01:49,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:50,557 INFO L124 PetriNetUnfolderBase]: 127/685 cut-off events. [2024-11-19 14:01:50,557 INFO L125 PetriNetUnfolderBase]: For 2683/2683 co-relation queries the response was YES. [2024-11-19 14:01:50,559 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 2244 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 14:01:50,561 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 113 selfloop transitions, 93 changer transitions 0/240 dead transitions. [2024-11-19 14:01:50,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 240 transitions, 2467 flow [2024-11-19 14:01:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-19 14:01:50,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-19 14:01:50,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1171 transitions. [2024-11-19 14:01:50,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43418613274008155 [2024-11-19 14:01:50,565 INFO L175 Difference]: Start difference. First operand has 147 places, 130 transitions, 823 flow. Second operand 31 states and 1171 transitions. [2024-11-19 14:01:50,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 240 transitions, 2467 flow [2024-11-19 14:01:50,573 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 14:01:50,576 INFO L231 Difference]: Finished difference. Result has 181 places, 181 transitions, 1560 flow [2024-11-19 14:01:50,576 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 14:01:50,577 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 107 predicate places. [2024-11-19 14:01:50,577 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 181 transitions, 1560 flow [2024-11-19 14:01:50,578 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 14:01:50,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:50,578 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2024-11-19 14:01:50,593 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 14:01:50,778 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 14:01:50,779 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 14:01:50,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:50,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1556686647, now seen corresponding path program 2 times [2024-11-19 14:01:50,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:50,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195514974] [2024-11-19 14:01:50,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:01:50,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:50,985 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:01:50,986 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:01:52,561 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 14:01:52,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:52,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195514974] [2024-11-19 14:01:52,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195514974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:01:52,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760495405] [2024-11-19 14:01:52,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:01:52,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:52,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:52,563 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 14:01:52,564 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 14:01:53,108 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:01:53,108 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:01:53,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-19 14:01:53,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:53,231 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 14:01:53,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:01:53,871 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 14:01:53,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760495405] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:01:53,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:01:53,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-19 14:01:53,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217428841] [2024-11-19 14:01:53,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:01:53,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-19 14:01:53,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:53,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-19 14:01:53,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-19 14:01:54,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-11-19 14:01:54,091 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 14:01:54,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:54,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-11-19 14:01:54,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:57,047 INFO L124 PetriNetUnfolderBase]: 127/970 cut-off events. [2024-11-19 14:01:57,047 INFO L125 PetriNetUnfolderBase]: For 9666/9666 co-relation queries the response was YES. [2024-11-19 14:01:57,050 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 2392 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 14:01:57,054 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 203 selfloop transitions, 183 changer transitions 0/420 dead transitions. [2024-11-19 14:01:57,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 420 transitions, 5406 flow [2024-11-19 14:01:57,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-19 14:01:57,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-11-19 14:01:57,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 2273 transitions. [2024-11-19 14:01:57,059 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42830224232146225 [2024-11-19 14:01:57,059 INFO L175 Difference]: Start difference. First operand has 181 places, 181 transitions, 1560 flow. Second operand 61 states and 2273 transitions. [2024-11-19 14:01:57,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 420 transitions, 5406 flow [2024-11-19 14:01:57,079 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 14:01:57,084 INFO L231 Difference]: Finished difference. Result has 245 places, 274 transitions, 3230 flow [2024-11-19 14:01:57,085 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 14:01:57,085 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 171 predicate places. [2024-11-19 14:01:57,085 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 274 transitions, 3230 flow [2024-11-19 14:01:57,086 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 14:01:57,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:57,086 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2024-11-19 14:01:57,103 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 14:01:57,287 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 14:01:57,287 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 14:01:57,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:57,287 INFO L85 PathProgramCache]: Analyzing trace with hash 497022124, now seen corresponding path program 3 times [2024-11-19 14:01:57,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:57,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405881431] [2024-11-19 14:01:57,288 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:01:57,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:03,485 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2024-11-19 14:03:03,486 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-19 14:03:03,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [529329947] [2024-11-19 14:03:03,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:03:03,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:03,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:03,511 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:03:03,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 14:03:04,053 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 14:03:04,054 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:03:04,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 14:03:04,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:04,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2420 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2024-11-19 14:03:04,235 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:03:04,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:04,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405881431] [2024-11-19 14:03:04,236 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 14:03:04,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529329947] [2024-11-19 14:03:04,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529329947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:04,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:04,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 14:03:04,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221833004] [2024-11-19 14:03:04,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:04,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 14:03:04,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:04,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 14:03:04,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-19 14:03:04,265 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 87 [2024-11-19 14:03:04,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 274 transitions, 3230 flow. Second operand has 9 states, 9 states have (on average 33.44444444444444) internal successors, (301), 9 states have internal predecessors, (301), 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 14:03:04,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:04,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 87 [2024-11-19 14:03:04,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:04,778 INFO L124 PetriNetUnfolderBase]: 127/910 cut-off events. [2024-11-19 14:03:04,778 INFO L125 PetriNetUnfolderBase]: For 7457/7457 co-relation queries the response was YES. [2024-11-19 14:03:04,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3780 conditions, 910 events. 127/910 cut-off events. For 7457/7457 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2134 event pairs, 105 based on Foata normal form. 60/896 useless extension candidates. Maximal degree in co-relation 3099. Up to 256 conditions per place. [2024-11-19 14:03:04,784 INFO L140 encePairwiseOnDemand]: 77/87 looper letters, 106 selfloop transitions, 137 changer transitions 0/275 dead transitions. [2024-11-19 14:03:04,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 275 transitions, 3730 flow [2024-11-19 14:03:04,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 14:03:04,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-19 14:03:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 403 transitions. [2024-11-19 14:03:04,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4211076280041797 [2024-11-19 14:03:04,786 INFO L175 Difference]: Start difference. First operand has 245 places, 274 transitions, 3230 flow. Second operand 11 states and 403 transitions. [2024-11-19 14:03:04,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 275 transitions, 3730 flow [2024-11-19 14:03:04,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 275 transitions, 3532 flow, removed 15 selfloop flow, removed 28 redundant places. [2024-11-19 14:03:04,830 INFO L231 Difference]: Finished difference. Result has 226 places, 274 transitions, 3389 flow [2024-11-19 14:03:04,830 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=3022, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3389, PETRI_PLACES=226, PETRI_TRANSITIONS=274} [2024-11-19 14:03:04,831 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 152 predicate places. [2024-11-19 14:03:04,831 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 274 transitions, 3389 flow [2024-11-19 14:03:04,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.44444444444444) internal successors, (301), 9 states have internal predecessors, (301), 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 14:03:04,831 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:04,831 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 32, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2024-11-19 14:03:04,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 14:03:05,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:05,032 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-19 14:03:05,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:05,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1772182496, now seen corresponding path program 1 times [2024-11-19 14:03:05,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:05,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796889753] [2024-11-19 14:03:05,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:05,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms