./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 23:57:00,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 23:57:00,178 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 23:57:00,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 23:57:00,182 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 23:57:00,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 23:57:00,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 23:57:00,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 23:57:00,203 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 23:57:00,203 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 23:57:00,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 23:57:00,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 23:57:00,205 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 23:57:00,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 23:57:00,205 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 23:57:00,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 23:57:00,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 23:57:00,206 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 23:57:00,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 23:57:00,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 23:57:00,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 23:57:00,208 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 23:57:00,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 23:57:00,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 23:57:00,209 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 23:57:00,209 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 23:57:00,209 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 23:57:00,210 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 23:57:00,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 23:57:00,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 23:57:00,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 23:57:00,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 23:57:00,215 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 23:57:00,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 23:57:00,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 23:57:00,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 23:57:00,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 23:57:00,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 23:57:00,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 23:57:00,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 23:57:00,218 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 23:57:00,218 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 23:57:00,218 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 23:57:00,219 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 23:57:00,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2024-10-14 23:57:00,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 23:57:00,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 23:57:00,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 23:57:00,504 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 23:57:00,504 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 23:57:00,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-10-14 23:57:02,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 23:57:02,331 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 23:57:02,332 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-10-14 23:57:02,351 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48f42f6b/5d3542d396104bd59a370cf4ef2711e5/FLAG5a1b9258e [2024-10-14 23:57:02,368 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48f42f6b/5d3542d396104bd59a370cf4ef2711e5 [2024-10-14 23:57:02,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 23:57:02,373 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 23:57:02,375 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 23:57:02,375 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 23:57:02,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 23:57:02,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:57:02" (1/1) ... [2024-10-14 23:57:02,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27297cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:02, skipping insertion in model container [2024-10-14 23:57:02,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:57:02" (1/1) ... [2024-10-14 23:57:02,440 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 23:57:02,938 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 23:57:02,939 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 23:57:02,940 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 23:57:02,941 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 23:57:02,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 23:57:03,033 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 23:57:03,088 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 23:57:03,089 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 23:57:03,089 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 23:57:03,090 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 23:57:03,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 23:57:03,181 INFO L204 MainTranslator]: Completed translation [2024-10-14 23:57:03,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03 WrapperNode [2024-10-14 23:57:03,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 23:57:03,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 23:57:03,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 23:57:03,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 23:57:03,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03" (1/1) ... [2024-10-14 23:57:03,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03" (1/1) ... [2024-10-14 23:57:03,331 INFO L138 Inliner]: procedures = 279, calls = 73, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 360 [2024-10-14 23:57:03,332 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 23:57:03,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 23:57:03,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 23:57:03,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 23:57:03,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03" (1/1) ... [2024-10-14 23:57:03,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03" (1/1) ... [2024-10-14 23:57:03,358 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03" (1/1) ... [2024-10-14 23:57:03,386 INFO L175 MemorySlicer]: Split 37 memory accesses to 5 slices as follows [2, 5, 26, 2, 2]. 70 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0, 0]. The 17 writes are split as follows [0, 0, 15, 1, 1]. [2024-10-14 23:57:03,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03" (1/1) ... [2024-10-14 23:57:03,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03" (1/1) ... [2024-10-14 23:57:03,410 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03" (1/1) ... [2024-10-14 23:57:03,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03" (1/1) ... [2024-10-14 23:57:03,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03" (1/1) ... [2024-10-14 23:57:03,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03" (1/1) ... [2024-10-14 23:57:03,440 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 23:57:03,441 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 23:57:03,441 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 23:57:03,441 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 23:57:03,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03" (1/1) ... [2024-10-14 23:57:03,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 23:57:03,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:57:03,480 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) [2024-10-14 23:57:03,485 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 [2024-10-14 23:57:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 23:57:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-14 23:57:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-14 23:57:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-14 23:57:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-14 23:57:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-14 23:57:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-14 23:57:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-14 23:57:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 23:57:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 23:57:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 23:57:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 23:57:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 23:57:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 23:57:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 23:57:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-14 23:57:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-14 23:57:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 23:57:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 23:57:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 23:57:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 23:57:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 23:57:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 23:57:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 23:57:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 23:57:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-14 23:57:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-14 23:57:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-14 23:57:03,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-14 23:57:03,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-14 23:57:03,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 23:57:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 23:57:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 23:57:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 23:57:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 23:57:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 23:57:03,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 23:57:03,546 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 23:57:03,766 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 23:57:03,768 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 23:57:04,287 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 23:57:04,287 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 23:57:04,608 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 23:57:04,609 INFO L314 CfgBuilder]: Removed 30 assume(true) statements. [2024-10-14 23:57:04,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:57:04 BoogieIcfgContainer [2024-10-14 23:57:04,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 23:57:04,613 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 23:57:04,613 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 23:57:04,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 23:57:04,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:57:02" (1/3) ... [2024-10-14 23:57:04,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1481a770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:57:04, skipping insertion in model container [2024-10-14 23:57:04,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:57:03" (2/3) ... [2024-10-14 23:57:04,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1481a770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:57:04, skipping insertion in model container [2024-10-14 23:57:04,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:57:04" (3/3) ... [2024-10-14 23:57:04,620 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-10-14 23:57:04,638 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 23:57:04,639 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-10-14 23:57:04,639 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 23:57:04,759 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-14 23:57:04,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 167 transitions, 354 flow [2024-10-14 23:57:04,891 INFO L124 PetriNetUnfolderBase]: 49/279 cut-off events. [2024-10-14 23:57:04,891 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-14 23:57:04,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 279 events. 49/279 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1377 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 156. Up to 8 conditions per place. [2024-10-14 23:57:04,899 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 167 transitions, 354 flow [2024-10-14 23:57:04,906 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 167 transitions, 354 flow [2024-10-14 23:57:04,919 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 23:57:04,926 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;@10528d98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 23:57:04,926 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-10-14 23:57:04,930 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 23:57:04,930 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-10-14 23:57:04,931 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 23:57:04,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:57:04,931 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-14 23:57:04,932 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-14 23:57:04,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:57:04,937 INFO L85 PathProgramCache]: Analyzing trace with hash 28723099, now seen corresponding path program 1 times [2024-10-14 23:57:04,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:57:04,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797526750] [2024-10-14 23:57:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:04,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:57:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 23:57:05,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [823178250] [2024-10-14 23:57:05,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:05,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:57:05,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:57:05,118 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) [2024-10-14 23:57:05,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 23:57:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:05,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 23:57:05,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 23:57:05,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:57:05,301 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 23:57:05,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:57:05,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797526750] [2024-10-14 23:57:05,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 23:57:05,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823178250] [2024-10-14 23:57:05,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823178250] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:57:05,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:57:05,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 23:57:05,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921353366] [2024-10-14 23:57:05,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:57:05,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 23:57:05,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:57:05,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 23:57:05,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 23:57:05,370 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2024-10-14 23:57:05,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 167 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:05,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:57:05,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2024-10-14 23:57:05,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:57:07,746 INFO L124 PetriNetUnfolderBase]: 8567/18653 cut-off events. [2024-10-14 23:57:07,747 INFO L125 PetriNetUnfolderBase]: For 265/265 co-relation queries the response was YES. [2024-10-14 23:57:07,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31504 conditions, 18653 events. 8567/18653 cut-off events. For 265/265 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 169999 event pairs, 7350 based on Foata normal form. 2268/17596 useless extension candidates. Maximal degree in co-relation 30100. Up to 12703 conditions per place. [2024-10-14 23:57:07,915 INFO L140 encePairwiseOnDemand]: 142/167 looper letters, 76 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2024-10-14 23:57:07,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 152 transitions, 480 flow [2024-10-14 23:57:07,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 23:57:07,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 23:57:07,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2024-10-14 23:57:07,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6447105788423154 [2024-10-14 23:57:07,935 INFO L175 Difference]: Start difference. First operand has 140 places, 167 transitions, 354 flow. Second operand 3 states and 323 transitions. [2024-10-14 23:57:07,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 152 transitions, 480 flow [2024-10-14 23:57:07,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 152 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 23:57:07,947 INFO L231 Difference]: Finished difference. Result has 143 places, 148 transitions, 330 flow [2024-10-14 23:57:07,949 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=143, PETRI_TRANSITIONS=148} [2024-10-14 23:57:07,954 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 3 predicate places. [2024-10-14 23:57:07,954 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 148 transitions, 330 flow [2024-10-14 23:57:07,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:07,955 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:57:07,955 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-14 23:57:07,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 23:57:08,156 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 [2024-10-14 23:57:08,156 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-14 23:57:08,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:57:08,157 INFO L85 PathProgramCache]: Analyzing trace with hash 28723147, now seen corresponding path program 1 times [2024-10-14 23:57:08,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:57:08,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115868485] [2024-10-14 23:57:08,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:08,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:57:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:57:08,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:57:08,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115868485] [2024-10-14 23:57:08,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115868485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:57:08,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:57:08,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:57:08,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202538358] [2024-10-14 23:57:08,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:57:08,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 23:57:08,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:57:08,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 23:57:08,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 23:57:08,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2024-10-14 23:57:08,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 148 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:08,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:57:08,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2024-10-14 23:57:08,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:57:10,491 INFO L124 PetriNetUnfolderBase]: 8567/18667 cut-off events. [2024-10-14 23:57:10,492 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-10-14 23:57:10,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31531 conditions, 18667 events. 8567/18667 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170092 event pairs, 7350 based on Foata normal form. 4/15346 useless extension candidates. Maximal degree in co-relation 31493. Up to 12708 conditions per place. [2024-10-14 23:57:10,837 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 74 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2024-10-14 23:57:10,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 150 transitions, 486 flow [2024-10-14 23:57:10,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 23:57:10,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 23:57:10,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-10-14 23:57:10,842 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5988023952095808 [2024-10-14 23:57:10,843 INFO L175 Difference]: Start difference. First operand has 143 places, 148 transitions, 330 flow. Second operand 3 states and 300 transitions. [2024-10-14 23:57:10,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 150 transitions, 486 flow [2024-10-14 23:57:10,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 150 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 23:57:10,851 INFO L231 Difference]: Finished difference. Result has 145 places, 149 transitions, 344 flow [2024-10-14 23:57:10,852 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=145, PETRI_TRANSITIONS=149} [2024-10-14 23:57:10,852 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2024-10-14 23:57:10,853 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 149 transitions, 344 flow [2024-10-14 23:57:10,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:10,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:57:10,853 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-14 23:57:10,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 23:57:10,854 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-14 23:57:10,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:57:10,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1833125160, now seen corresponding path program 1 times [2024-10-14 23:57:10,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:57:10,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891460639] [2024-10-14 23:57:10,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:10,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:57:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:11,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:57:11,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:57:11,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891460639] [2024-10-14 23:57:11,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891460639] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:57:11,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:57:11,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:57:11,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400203519] [2024-10-14 23:57:11,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:57:11,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:57:11,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:57:11,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:57:11,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:57:11,236 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-10-14 23:57:11,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 149 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:11,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:57:11,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-10-14 23:57:11,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:57:13,107 INFO L124 PetriNetUnfolderBase]: 8567/18663 cut-off events. [2024-10-14 23:57:13,108 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-10-14 23:57:13,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31543 conditions, 18663 events. 8567/18663 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170093 event pairs, 7350 based on Foata normal form. 4/15346 useless extension candidates. Maximal degree in co-relation 31480. Up to 12712 conditions per place. [2024-10-14 23:57:13,251 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 75 selfloop transitions, 3 changer transitions 0/150 dead transitions. [2024-10-14 23:57:13,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 150 transitions, 502 flow [2024-10-14 23:57:13,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:57:13,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:57:13,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 367 transitions. [2024-10-14 23:57:13,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5494011976047904 [2024-10-14 23:57:13,253 INFO L175 Difference]: Start difference. First operand has 145 places, 149 transitions, 344 flow. Second operand 4 states and 367 transitions. [2024-10-14 23:57:13,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 150 transitions, 502 flow [2024-10-14 23:57:13,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 150 transitions, 500 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 23:57:13,259 INFO L231 Difference]: Finished difference. Result has 149 places, 150 transitions, 360 flow [2024-10-14 23:57:13,260 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=360, PETRI_PLACES=149, PETRI_TRANSITIONS=150} [2024-10-14 23:57:13,261 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 9 predicate places. [2024-10-14 23:57:13,261 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 150 transitions, 360 flow [2024-10-14 23:57:13,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:13,262 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:57:13,262 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:57:13,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 23:57:13,262 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-14 23:57:13,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:57:13,263 INFO L85 PathProgramCache]: Analyzing trace with hash 123524072, now seen corresponding path program 1 times [2024-10-14 23:57:13,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:57:13,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548722566] [2024-10-14 23:57:13,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:13,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:57:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:13,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 23:57:13,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:57:13,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548722566] [2024-10-14 23:57:13,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548722566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:57:13,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:57:13,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:57:13,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357307679] [2024-10-14 23:57:13,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:57:13,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:57:13,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:57:13,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:57:13,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:57:13,445 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-10-14 23:57:13,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 150 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:13,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:57:13,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-10-14 23:57:13,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:57:15,269 INFO L124 PetriNetUnfolderBase]: 8567/18661 cut-off events. [2024-10-14 23:57:15,270 INFO L125 PetriNetUnfolderBase]: For 295/295 co-relation queries the response was YES. [2024-10-14 23:57:15,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31555 conditions, 18661 events. 8567/18661 cut-off events. For 295/295 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170086 event pairs, 7350 based on Foata normal form. 2/15344 useless extension candidates. Maximal degree in co-relation 31481. Up to 12707 conditions per place. [2024-10-14 23:57:15,399 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 81 selfloop transitions, 3 changer transitions 0/156 dead transitions. [2024-10-14 23:57:15,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 560 flow [2024-10-14 23:57:15,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:57:15,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:57:15,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 370 transitions. [2024-10-14 23:57:15,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5538922155688623 [2024-10-14 23:57:15,402 INFO L175 Difference]: Start difference. First operand has 149 places, 150 transitions, 360 flow. Second operand 4 states and 370 transitions. [2024-10-14 23:57:15,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 560 flow [2024-10-14 23:57:15,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 156 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 23:57:15,412 INFO L231 Difference]: Finished difference. Result has 152 places, 151 transitions, 376 flow [2024-10-14 23:57:15,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=376, PETRI_PLACES=152, PETRI_TRANSITIONS=151} [2024-10-14 23:57:15,414 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 12 predicate places. [2024-10-14 23:57:15,414 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 151 transitions, 376 flow [2024-10-14 23:57:15,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:15,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:57:15,415 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-10-14 23:57:15,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 23:57:15,416 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-14 23:57:15,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:57:15,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1552466427, now seen corresponding path program 1 times [2024-10-14 23:57:15,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:57:15,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624090419] [2024-10-14 23:57:15,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:15,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:57:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:15,654 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:57:15,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:57:15,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624090419] [2024-10-14 23:57:15,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624090419] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 23:57:15,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978689594] [2024-10-14 23:57:15,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:15,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:57:15,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:57:15,660 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) [2024-10-14 23:57:15,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 23:57:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:15,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 23:57:15,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 23:57:15,900 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:57:15,900 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 23:57:15,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978689594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:57:15,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 23:57:15,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-14 23:57:15,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506097399] [2024-10-14 23:57:15,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:57:15,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 23:57:15,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:57:15,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 23:57:15,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 23:57:15,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-10-14 23:57:15,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 151 transitions, 376 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:15,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:57:15,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-10-14 23:57:15,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:57:17,620 INFO L124 PetriNetUnfolderBase]: 8567/18659 cut-off events. [2024-10-14 23:57:17,620 INFO L125 PetriNetUnfolderBase]: For 292/292 co-relation queries the response was YES. [2024-10-14 23:57:17,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31557 conditions, 18659 events. 8567/18659 cut-off events. For 292/292 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170051 event pairs, 7350 based on Foata normal form. 2/15342 useless extension candidates. Maximal degree in co-relation 31505. Up to 12700 conditions per place. [2024-10-14 23:57:17,752 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 71 selfloop transitions, 7 changer transitions 0/150 dead transitions. [2024-10-14 23:57:17,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 150 transitions, 528 flow [2024-10-14 23:57:17,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 23:57:17,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 23:57:17,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 509 transitions. [2024-10-14 23:57:17,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5079840319361277 [2024-10-14 23:57:17,754 INFO L175 Difference]: Start difference. First operand has 152 places, 151 transitions, 376 flow. Second operand 6 states and 509 transitions. [2024-10-14 23:57:17,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 150 transitions, 528 flow [2024-10-14 23:57:17,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 150 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 23:57:17,759 INFO L231 Difference]: Finished difference. Result has 154 places, 150 transitions, 382 flow [2024-10-14 23:57:17,759 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=382, PETRI_PLACES=154, PETRI_TRANSITIONS=150} [2024-10-14 23:57:17,760 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 14 predicate places. [2024-10-14 23:57:17,760 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 150 transitions, 382 flow [2024-10-14 23:57:17,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:17,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:57:17,761 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2024-10-14 23:57:17,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 23:57:17,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:57:17,966 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-14 23:57:17,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:57:17,967 INFO L85 PathProgramCache]: Analyzing trace with hash -881817919, now seen corresponding path program 1 times [2024-10-14 23:57:17,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:57:17,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618121458] [2024-10-14 23:57:17,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:17,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:57:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:18,096 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 23:57:18,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:57:18,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618121458] [2024-10-14 23:57:18,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618121458] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:57:18,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:57:18,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:57:18,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500287182] [2024-10-14 23:57:18,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:57:18,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:57:18,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:57:18,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:57:18,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:57:18,110 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2024-10-14 23:57:18,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 150 transitions, 382 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:18,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:57:18,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2024-10-14 23:57:18,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:57:19,833 INFO L124 PetriNetUnfolderBase]: 8567/18657 cut-off events. [2024-10-14 23:57:19,834 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-10-14 23:57:19,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31563 conditions, 18657 events. 8567/18657 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170088 event pairs, 7350 based on Foata normal form. 2/15340 useless extension candidates. Maximal degree in co-relation 31504. Up to 12704 conditions per place. [2024-10-14 23:57:19,986 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 71 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-10-14 23:57:19,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 150 transitions, 534 flow [2024-10-14 23:57:19,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:57:19,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:57:19,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2024-10-14 23:57:19,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5479041916167665 [2024-10-14 23:57:19,989 INFO L175 Difference]: Start difference. First operand has 154 places, 150 transitions, 382 flow. Second operand 4 states and 366 transitions. [2024-10-14 23:57:19,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 150 transitions, 534 flow [2024-10-14 23:57:19,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 150 transitions, 519 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-10-14 23:57:19,993 INFO L231 Difference]: Finished difference. Result has 152 places, 150 transitions, 383 flow [2024-10-14 23:57:19,994 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=152, PETRI_TRANSITIONS=150} [2024-10-14 23:57:19,995 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 12 predicate places. [2024-10-14 23:57:19,995 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 150 transitions, 383 flow [2024-10-14 23:57:19,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:19,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:57:19,996 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:57:19,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 23:57:19,996 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-14 23:57:19,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:57:19,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1602199158, now seen corresponding path program 1 times [2024-10-14 23:57:19,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:57:19,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593116873] [2024-10-14 23:57:19,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:19,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:57:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:20,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:57:20,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:57:20,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593116873] [2024-10-14 23:57:20,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593116873] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 23:57:20,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053886843] [2024-10-14 23:57:20,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:20,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:57:20,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:57:20,154 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) [2024-10-14 23:57:20,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 23:57:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:20,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 23:57:20,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 23:57:20,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:57:20,526 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 23:57:20,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:57:20,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053886843] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 23:57:20,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 23:57:20,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 23:57:20,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864688408] [2024-10-14 23:57:20,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 23:57:20,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 23:57:20,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:57:20,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 23:57:20,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 23:57:20,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-10-14 23:57:20,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 150 transitions, 383 flow. Second operand has 10 states, 10 states have (on average 72.9) internal successors, (729), 10 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:20,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:57:20,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-10-14 23:57:20,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:57:22,587 INFO L124 PetriNetUnfolderBase]: 8567/18671 cut-off events. [2024-10-14 23:57:22,588 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2024-10-14 23:57:22,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31611 conditions, 18671 events. 8567/18671 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170225 event pairs, 7350 based on Foata normal form. 4/15356 useless extension candidates. Maximal degree in co-relation 31534. Up to 12702 conditions per place. [2024-10-14 23:57:22,678 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 78 selfloop transitions, 7 changer transitions 0/156 dead transitions. [2024-10-14 23:57:22,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 156 transitions, 588 flow [2024-10-14 23:57:22,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 23:57:22,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 23:57:22,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 582 transitions. [2024-10-14 23:57:22,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49786142001710865 [2024-10-14 23:57:22,681 INFO L175 Difference]: Start difference. First operand has 152 places, 150 transitions, 383 flow. Second operand 7 states and 582 transitions. [2024-10-14 23:57:22,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 156 transitions, 588 flow [2024-10-14 23:57:22,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 156 transitions, 575 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 23:57:22,687 INFO L231 Difference]: Finished difference. Result has 159 places, 153 transitions, 423 flow [2024-10-14 23:57:22,687 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=423, PETRI_PLACES=159, PETRI_TRANSITIONS=153} [2024-10-14 23:57:22,688 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 19 predicate places. [2024-10-14 23:57:22,688 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 153 transitions, 423 flow [2024-10-14 23:57:22,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.9) internal successors, (729), 10 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:22,690 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:57:22,690 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:57:22,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 23:57:22,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:57:22,892 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-14 23:57:22,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:57:22,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1091124374, now seen corresponding path program 2 times [2024-10-14 23:57:22,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:57:22,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14048958] [2024-10-14 23:57:22,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:22,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:57:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:23,057 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-14 23:57:23,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:57:23,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14048958] [2024-10-14 23:57:23,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14048958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:57:23,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:57:23,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:57:23,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791490152] [2024-10-14 23:57:23,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:57:23,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:57:23,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:57:23,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:57:23,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:57:23,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2024-10-14 23:57:23,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 153 transitions, 423 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:23,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:57:23,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2024-10-14 23:57:23,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:57:25,023 INFO L124 PetriNetUnfolderBase]: 8329/17769 cut-off events. [2024-10-14 23:57:25,023 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-10-14 23:57:25,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30485 conditions, 17769 events. 8329/17769 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 160518 event pairs, 3381 based on Foata normal form. 22/14505 useless extension candidates. Maximal degree in co-relation 30400. Up to 12412 conditions per place. [2024-10-14 23:57:25,109 INFO L140 encePairwiseOnDemand]: 161/167 looper letters, 122 selfloop transitions, 3 changer transitions 0/198 dead transitions. [2024-10-14 23:57:25,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 198 transitions, 763 flow [2024-10-14 23:57:25,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:57:25,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:57:25,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 414 transitions. [2024-10-14 23:57:25,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6197604790419161 [2024-10-14 23:57:25,114 INFO L175 Difference]: Start difference. First operand has 159 places, 153 transitions, 423 flow. Second operand 4 states and 414 transitions. [2024-10-14 23:57:25,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 198 transitions, 763 flow [2024-10-14 23:57:25,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 198 transitions, 759 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 23:57:25,122 INFO L231 Difference]: Finished difference. Result has 159 places, 151 transitions, 425 flow [2024-10-14 23:57:25,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=425, PETRI_PLACES=159, PETRI_TRANSITIONS=151} [2024-10-14 23:57:25,123 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 19 predicate places. [2024-10-14 23:57:25,125 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 151 transitions, 425 flow [2024-10-14 23:57:25,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:25,126 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:57:25,126 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1] [2024-10-14 23:57:25,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 23:57:25,127 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-14 23:57:25,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:57:25,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1974433584, now seen corresponding path program 1 times [2024-10-14 23:57:25,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:57:25,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050593158] [2024-10-14 23:57:25,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:25,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:57:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:25,453 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 23:57:25,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:57:25,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050593158] [2024-10-14 23:57:25,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050593158] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 23:57:25,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236275528] [2024-10-14 23:57:25,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:25,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:57:25,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:57:25,456 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) [2024-10-14 23:57:25,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 23:57:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:25,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 23:57:25,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 23:57:25,788 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 23:57:25,788 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 23:57:25,898 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 23:57:25,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236275528] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 23:57:25,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 23:57:25,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-14 23:57:25,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449195205] [2024-10-14 23:57:25,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 23:57:25,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 23:57:25,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:57:25,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 23:57:25,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-14 23:57:26,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-10-14 23:57:26,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 151 transitions, 425 flow. Second operand has 18 states, 18 states have (on average 72.83333333333333) internal successors, (1311), 18 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:26,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:57:26,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-10-14 23:57:26,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:57:28,854 INFO L124 PetriNetUnfolderBase]: 8493/18551 cut-off events. [2024-10-14 23:57:28,854 INFO L125 PetriNetUnfolderBase]: For 514/514 co-relation queries the response was YES. [2024-10-14 23:57:28,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31553 conditions, 18551 events. 8493/18551 cut-off events. For 514/514 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 170321 event pairs, 7308 based on Foata normal form. 8/15219 useless extension candidates. Maximal degree in co-relation 31396. Up to 12580 conditions per place. [2024-10-14 23:57:28,961 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 90 selfloop transitions, 15 changer transitions 0/174 dead transitions. [2024-10-14 23:57:28,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 174 transitions, 797 flow [2024-10-14 23:57:28,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 23:57:28,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-14 23:57:28,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1172 transitions. [2024-10-14 23:57:28,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4678642714570858 [2024-10-14 23:57:28,966 INFO L175 Difference]: Start difference. First operand has 159 places, 151 transitions, 425 flow. Second operand 15 states and 1172 transitions. [2024-10-14 23:57:28,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 174 transitions, 797 flow [2024-10-14 23:57:28,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 174 transitions, 791 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 23:57:28,971 INFO L231 Difference]: Finished difference. Result has 175 places, 160 transitions, 553 flow [2024-10-14 23:57:28,972 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=553, PETRI_PLACES=175, PETRI_TRANSITIONS=160} [2024-10-14 23:57:28,973 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 35 predicate places. [2024-10-14 23:57:28,973 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 160 transitions, 553 flow [2024-10-14 23:57:28,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 72.83333333333333) internal successors, (1311), 18 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:28,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:57:28,974 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2024-10-14 23:57:28,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 23:57:29,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:57:29,175 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-14 23:57:29,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:57:29,176 INFO L85 PathProgramCache]: Analyzing trace with hash -944200848, now seen corresponding path program 2 times [2024-10-14 23:57:29,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:57:29,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313770823] [2024-10-14 23:57:29,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:29,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:57:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:30,257 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 23:57:30,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:57:30,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313770823] [2024-10-14 23:57:30,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313770823] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 23:57:30,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085445155] [2024-10-14 23:57:30,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 23:57:30,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:57:30,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:57:30,262 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) [2024-10-14 23:57:30,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 23:57:30,699 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 23:57:30,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 23:57:30,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 23:57:30,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 23:57:30,813 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 23:57:30,814 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 23:57:31,148 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 23:57:31,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085445155] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 23:57:31,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 23:57:31,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-14 23:57:31,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344207842] [2024-10-14 23:57:31,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 23:57:31,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-14 23:57:31,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:57:31,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-14 23:57:31,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-14 23:57:31,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-10-14 23:57:31,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 160 transitions, 553 flow. Second operand has 34 states, 34 states have (on average 72.67647058823529) internal successors, (2471), 34 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:31,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:57:31,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-10-14 23:57:31,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:57:35,099 INFO L124 PetriNetUnfolderBase]: 8493/18647 cut-off events. [2024-10-14 23:57:35,100 INFO L125 PetriNetUnfolderBase]: For 1408/1408 co-relation queries the response was YES. [2024-10-14 23:57:35,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32009 conditions, 18647 events. 8493/18647 cut-off events. For 1408/1408 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 170731 event pairs, 7308 based on Foata normal form. 16/15323 useless extension candidates. Maximal degree in co-relation 31642. Up to 12580 conditions per place. [2024-10-14 23:57:35,211 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 114 selfloop transitions, 31 changer transitions 0/214 dead transitions. [2024-10-14 23:57:35,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 214 transitions, 1307 flow [2024-10-14 23:57:35,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-14 23:57:35,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-10-14 23:57:35,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2352 transitions. [2024-10-14 23:57:35,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4543171721073981 [2024-10-14 23:57:35,218 INFO L175 Difference]: Start difference. First operand has 175 places, 160 transitions, 553 flow. Second operand 31 states and 2352 transitions. [2024-10-14 23:57:35,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 214 transitions, 1307 flow [2024-10-14 23:57:35,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 214 transitions, 1273 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-10-14 23:57:35,227 INFO L231 Difference]: Finished difference. Result has 210 places, 177 transitions, 825 flow [2024-10-14 23:57:35,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=825, PETRI_PLACES=210, PETRI_TRANSITIONS=177} [2024-10-14 23:57:35,228 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 70 predicate places. [2024-10-14 23:57:35,228 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 177 transitions, 825 flow [2024-10-14 23:57:35,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 72.67647058823529) internal successors, (2471), 34 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:35,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:57:35,230 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2024-10-14 23:57:35,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 23:57:35,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 23:57:35,431 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-14 23:57:35,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:57:35,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1339483152, now seen corresponding path program 3 times [2024-10-14 23:57:35,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:57:35,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896523285] [2024-10-14 23:57:35,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:35,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:57:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:37,789 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 23:57:37,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:57:37,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896523285] [2024-10-14 23:57:37,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896523285] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 23:57:37,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648774444] [2024-10-14 23:57:37,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 23:57:37,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:57:37,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:57:37,795 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) [2024-10-14 23:57:37,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 23:57:38,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-14 23:57:38,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 23:57:38,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 23:57:38,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 23:57:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-10-14 23:57:38,680 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 23:57:38,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648774444] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:57:38,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 23:57:38,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [33] total 40 [2024-10-14 23:57:38,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109059652] [2024-10-14 23:57:38,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:57:38,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 23:57:38,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:57:38,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 23:57:38,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1246, Unknown=0, NotChecked=0, Total=1560 [2024-10-14 23:57:38,721 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 167 [2024-10-14 23:57:38,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 177 transitions, 825 flow. Second operand has 9 states, 9 states have (on average 70.44444444444444) internal successors, (634), 9 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:38,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:57:38,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 167 [2024-10-14 23:57:38,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:57:41,458 INFO L124 PetriNetUnfolderBase]: 8493/18632 cut-off events. [2024-10-14 23:57:41,458 INFO L125 PetriNetUnfolderBase]: For 1588/1588 co-relation queries the response was YES. [2024-10-14 23:57:41,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32043 conditions, 18632 events. 8493/18632 cut-off events. For 1588/1588 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 170492 event pairs, 7308 based on Foata normal form. 15/15307 useless extension candidates. Maximal degree in co-relation 31627. Up to 12573 conditions per place. [2024-10-14 23:57:41,611 INFO L140 encePairwiseOnDemand]: 157/167 looper letters, 103 selfloop transitions, 41 changer transitions 0/211 dead transitions. [2024-10-14 23:57:41,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 211 transitions, 1532 flow [2024-10-14 23:57:41,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 23:57:41,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-14 23:57:41,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 844 transitions. [2024-10-14 23:57:41,613 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45944474686989656 [2024-10-14 23:57:41,614 INFO L175 Difference]: Start difference. First operand has 210 places, 177 transitions, 825 flow. Second operand 11 states and 844 transitions. [2024-10-14 23:57:41,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 211 transitions, 1532 flow [2024-10-14 23:57:41,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 211 transitions, 1480 flow, removed 2 selfloop flow, removed 12 redundant places. [2024-10-14 23:57:41,625 INFO L231 Difference]: Finished difference. Result has 212 places, 210 transitions, 1414 flow [2024-10-14 23:57:41,626 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=789, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1414, PETRI_PLACES=212, PETRI_TRANSITIONS=210} [2024-10-14 23:57:41,626 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 72 predicate places. [2024-10-14 23:57:41,627 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 210 transitions, 1414 flow [2024-10-14 23:57:41,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 70.44444444444444) internal successors, (634), 9 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:41,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:57:41,627 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:57:41,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 23:57:41,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:57:41,832 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-14 23:57:41,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:57:41,833 INFO L85 PathProgramCache]: Analyzing trace with hash -391630626, now seen corresponding path program 1 times [2024-10-14 23:57:41,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:57:41,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229979790] [2024-10-14 23:57:41,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:41,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:57:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:42,366 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2024-10-14 23:57:42,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:57:42,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229979790] [2024-10-14 23:57:42,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229979790] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 23:57:42,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288493395] [2024-10-14 23:57:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:42,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:57:42,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:57:42,368 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) [2024-10-14 23:57:42,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 23:57:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:57:43,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-14 23:57:43,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 23:57:43,740 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 23:57:43,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 23:57:44,589 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 23:57:44,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288493395] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 23:57:44,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 23:57:44,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 33, 33] total 64 [2024-10-14 23:57:44,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460569430] [2024-10-14 23:57:44,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 23:57:44,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-10-14 23:57:44,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:57:44,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-10-14 23:57:44,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=967, Invalid=3065, Unknown=0, NotChecked=0, Total=4032 [2024-10-14 23:57:44,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 167 [2024-10-14 23:57:44,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 210 transitions, 1414 flow. Second operand has 64 states, 64 states have (on average 70.640625) internal successors, (4521), 64 states have internal predecessors, (4521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:44,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:57:44,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 167 [2024-10-14 23:57:44,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:57:56,007 INFO L124 PetriNetUnfolderBase]: 8509/18982 cut-off events. [2024-10-14 23:57:56,007 INFO L125 PetriNetUnfolderBase]: For 10009/10009 co-relation queries the response was YES. [2024-10-14 23:57:56,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34207 conditions, 18982 events. 8509/18982 cut-off events. For 10009/10009 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 170630 event pairs, 7308 based on Foata normal form. 46/15688 useless extension candidates. Maximal degree in co-relation 33310. Up to 12578 conditions per place. [2024-10-14 23:57:56,164 INFO L140 encePairwiseOnDemand]: 158/167 looper letters, 192 selfloop transitions, 216 changer transitions 0/475 dead transitions. [2024-10-14 23:57:56,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 475 transitions, 6020 flow [2024-10-14 23:57:56,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2024-10-14 23:57:56,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2024-10-14 23:57:56,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 13012 transitions. [2024-10-14 23:57:56,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42811081134434426 [2024-10-14 23:57:56,386 INFO L175 Difference]: Start difference. First operand has 212 places, 210 transitions, 1414 flow. Second operand 182 states and 13012 transitions. [2024-10-14 23:57:56,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 475 transitions, 6020 flow [2024-10-14 23:57:56,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 475 transitions, 5998 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-10-14 23:57:56,422 INFO L231 Difference]: Finished difference. Result has 436 places, 364 transitions, 4282 flow [2024-10-14 23:57:56,423 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=1398, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=182, PETRI_FLOW=4282, PETRI_PLACES=436, PETRI_TRANSITIONS=364} [2024-10-14 23:57:56,423 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 296 predicate places. [2024-10-14 23:57:56,423 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 364 transitions, 4282 flow [2024-10-14 23:57:56,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 70.640625) internal successors, (4521), 64 states have internal predecessors, (4521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:57:56,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:57:56,427 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 32, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2024-10-14 23:57:56,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 23:57:56,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:57:56,628 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-14 23:57:56,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:57:56,628 INFO L85 PathProgramCache]: Analyzing trace with hash 621218998, now seen corresponding path program 1 times [2024-10-14 23:57:56,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:57:56,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140110511] [2024-10-14 23:57:56,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:57:56,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms