./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_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 0.3.0-?-798a7b3-m [2025-03-04 15:23:27,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:23:27,454 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:23:27,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:23:27,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:23:27,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:23:27,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:23:27,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:23:27,477 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:23:27,477 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:23:27,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:23:27,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:23:27,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:23:27,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:23:27,478 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:23:27,479 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:23:27,479 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:23:27,479 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:23:27,479 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:23:27,479 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:23:27,479 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:23:27,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:23:27,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:23:27,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:23:27,479 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:23:27,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:23:27,479 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:23:27,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:23:27,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:23:27,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:23:27,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:23:27,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:23:27,481 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 [2025-03-04 15:23:27,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:23:27,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:23:27,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:23:27,704 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:23:27,704 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:23:27,705 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-03-04 15:23:28,872 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f81d993f/ae444f4c1af24bcda0354b64b96bc84c/FLAG89e61fb10 [2025-03-04 15:23:29,154 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:23:29,154 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-03-04 15:23:29,167 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f81d993f/ae444f4c1af24bcda0354b64b96bc84c/FLAG89e61fb10 [2025-03-04 15:23:29,442 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f81d993f/ae444f4c1af24bcda0354b64b96bc84c [2025-03-04 15:23:29,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:23:29,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:23:29,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:23:29,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:23:29,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:23:29,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:29,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dfb68a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29, skipping insertion in model container [2025-03-04 15:23:29,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:29,484 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:23:29,715 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:29,716 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:29,716 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:29,716 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:29,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:23:29,769 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:23:29,810 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:29,810 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:29,810 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:29,810 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:29,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:23:29,872 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:23:29,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29 WrapperNode [2025-03-04 15:23:29,873 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:23:29,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:23:29,875 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:23:29,875 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:23:29,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:29,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:29,921 INFO L138 Inliner]: procedures = 280, calls = 143, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 388 [2025-03-04 15:23:29,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:23:29,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:23:29,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:23:29,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:23:29,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:29,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:29,943 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:29,971 INFO L175 MemorySlicer]: Split 105 memory accesses to 5 slices as follows [2, 5, 94, 2, 2]. 90 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 5, 70, 0, 0]. The 15 writes are split as follows [0, 0, 13, 1, 1]. [2025-03-04 15:23:29,971 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:29,971 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:29,991 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:29,992 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:29,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:29,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:30,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:23:30,007 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:23:30,007 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:23:30,007 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:23:30,008 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29" (1/1) ... [2025-03-04 15:23:30,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:23:30,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:30,044 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) [2025-03-04 15:23:30,046 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 [2025-03-04 15:23:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 15:23:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 15:23:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 15:23:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 15:23:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 15:23:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 15:23:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-03-04 15:23:30,067 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-03-04 15:23:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 15:23:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 15:23:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 15:23:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 15:23:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 15:23:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 15:23:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 15:23:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 15:23:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 15:23:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 15:23:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 15:23:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 15:23:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-03-04 15:23:30,069 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-03-04 15:23:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 15:23:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 15:23:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 15:23:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 15:23:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 15:23:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 15:23:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 15:23:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:23:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 15:23:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 15:23:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 15:23:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 15:23:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 15:23:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:23:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 15:23:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 15:23:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 15:23:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 15:23:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:23:30,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:23:30,072 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:23:30,224 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:23:30,226 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:23:30,700 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-03-04 15:23:30,701 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2025-03-04 15:23:30,701 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-03-04 15:23:30,701 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-3: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2025-03-04 15:23:30,702 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:23:30,702 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:23:31,094 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:23:31,095 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:23:31,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:23:31 BoogieIcfgContainer [2025-03-04 15:23:31,096 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:23:31,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:23:31,098 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:23:31,101 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:23:31,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:23:29" (1/3) ... [2025-03-04 15:23:31,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19938205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:23:31, skipping insertion in model container [2025-03-04 15:23:31,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:29" (2/3) ... [2025-03-04 15:23:31,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19938205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:23:31, skipping insertion in model container [2025-03-04 15:23:31,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:23:31" (3/3) ... [2025-03-04 15:23:31,104 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2025-03-04 15:23:31,117 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:23:31,118 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_90-arrayloop2_racing.i that has 3 procedures, 132 locations, 1 initial locations, 18 loop locations, and 30 error locations. [2025-03-04 15:23:31,118 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:23:31,190 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-04 15:23:31,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 165 transitions, 350 flow [2025-03-04 15:23:31,290 INFO L124 PetriNetUnfolderBase]: 49/276 cut-off events. [2025-03-04 15:23:31,293 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-04 15:23:31,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 276 events. 49/276 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1404 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 154. Up to 8 conditions per place. [2025-03-04 15:23:31,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 165 transitions, 350 flow [2025-03-04 15:23:31,306 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 165 transitions, 350 flow [2025-03-04 15:23:31,314 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:23:31,324 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;@4087cc4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:23:31,324 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2025-03-04 15:23:31,332 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:23:31,332 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-03-04 15:23:31,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:23:31,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:31,333 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 15:23:31,333 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-04 15:23:31,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:31,338 INFO L85 PathProgramCache]: Analyzing trace with hash 29566975, now seen corresponding path program 1 times [2025-03-04 15:23:31,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:31,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074906482] [2025-03-04 15:23:31,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:31,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:31,431 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:23:31,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:23:31,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:31,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 15:23:31,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1987467667] [2025-03-04 15:23:31,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:31,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:31,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:31,479 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) [2025-03-04 15:23:31,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 15:23:31,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:23:31,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:23:31,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:31,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:31,594 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 15:23:31,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:31,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:31,616 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:23:31,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:31,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074906482] [2025-03-04 15:23:31,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 15:23:31,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987467667] [2025-03-04 15:23:31,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987467667] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:31,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:31,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 15:23:31,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383841450] [2025-03-04 15:23:31,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:31,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:23:31,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:31,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:23:31,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:23:31,651 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 165 [2025-03-04 15:23:31,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 165 transitions, 350 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) [2025-03-04 15:23:31,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:31,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 165 [2025-03-04 15:23:31,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:33,336 INFO L124 PetriNetUnfolderBase]: 7865/17238 cut-off events. [2025-03-04 15:23:33,336 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2025-03-04 15:23:33,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29031 conditions, 17238 events. 7865/17238 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 156916 event pairs, 6700 based on Foata normal form. 1798/15784 useless extension candidates. Maximal degree in co-relation 27671. Up to 11651 conditions per place. [2025-03-04 15:23:33,450 INFO L140 encePairwiseOnDemand]: 140/165 looper letters, 74 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2025-03-04 15:23:33,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 150 transitions, 472 flow [2025-03-04 15:23:33,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:23:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:23:33,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2025-03-04 15:23:33,459 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6484848484848484 [2025-03-04 15:23:33,460 INFO L175 Difference]: Start difference. First operand has 138 places, 165 transitions, 350 flow. Second operand 3 states and 321 transitions. [2025-03-04 15:23:33,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 150 transitions, 472 flow [2025-03-04 15:23:33,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 150 transitions, 472 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:23:33,468 INFO L231 Difference]: Finished difference. Result has 141 places, 146 transitions, 326 flow [2025-03-04 15:23:33,469 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=141, PETRI_TRANSITIONS=146} [2025-03-04 15:23:33,473 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 3 predicate places. [2025-03-04 15:23:33,473 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 146 transitions, 326 flow [2025-03-04 15:23:33,473 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) [2025-03-04 15:23:33,473 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:33,473 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 15:23:33,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 15:23:33,674 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 [2025-03-04 15:23:33,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-04 15:23:33,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:33,675 INFO L85 PathProgramCache]: Analyzing trace with hash 29566931, now seen corresponding path program 1 times [2025-03-04 15:23:33,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:33,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643827338] [2025-03-04 15:23:33,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:33,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:33,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:23:33,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:23:33,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:33,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:33,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:33,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:33,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643827338] [2025-03-04 15:23:33,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643827338] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:33,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:33,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:33,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832471811] [2025-03-04 15:23:33,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:33,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:23:33,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:33,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:23:33,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:23:33,841 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 165 [2025-03-04 15:23:33,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 146 transitions, 326 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) [2025-03-04 15:23:33,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:33,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 165 [2025-03-04 15:23:33,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:35,076 INFO L124 PetriNetUnfolderBase]: 7865/17252 cut-off events. [2025-03-04 15:23:35,077 INFO L125 PetriNetUnfolderBase]: For 262/262 co-relation queries the response was YES. [2025-03-04 15:23:35,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29058 conditions, 17252 events. 7865/17252 cut-off events. For 262/262 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 157040 event pairs, 6700 based on Foata normal form. 4/14004 useless extension candidates. Maximal degree in co-relation 29020. Up to 11656 conditions per place. [2025-03-04 15:23:35,150 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 72 selfloop transitions, 2 changer transitions 0/148 dead transitions. [2025-03-04 15:23:35,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 148 transitions, 478 flow [2025-03-04 15:23:35,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:23:35,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:23:35,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2025-03-04 15:23:35,154 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.602020202020202 [2025-03-04 15:23:35,154 INFO L175 Difference]: Start difference. First operand has 141 places, 146 transitions, 326 flow. Second operand 3 states and 298 transitions. [2025-03-04 15:23:35,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 148 transitions, 478 flow [2025-03-04 15:23:35,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 148 transitions, 476 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:23:35,158 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 340 flow [2025-03-04 15:23:35,159 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2025-03-04 15:23:35,160 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 5 predicate places. [2025-03-04 15:23:35,160 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 340 flow [2025-03-04 15:23:35,160 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) [2025-03-04 15:23:35,160 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:35,160 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-04 15:23:35,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:23:35,160 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-04 15:23:35,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:35,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1650880390, now seen corresponding path program 1 times [2025-03-04 15:23:35,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:35,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841519907] [2025-03-04 15:23:35,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:35,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:35,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:23:35,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:23:35,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:35,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:35,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:35,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:35,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841519907] [2025-03-04 15:23:35,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841519907] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:35,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:35,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:35,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108427158] [2025-03-04 15:23:35,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:35,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:35,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:35,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:35,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:35,350 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 165 [2025-03-04 15:23:35,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 147 transitions, 340 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) [2025-03-04 15:23:35,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:35,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 165 [2025-03-04 15:23:35,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:36,704 INFO L124 PetriNetUnfolderBase]: 7865/17248 cut-off events. [2025-03-04 15:23:36,704 INFO L125 PetriNetUnfolderBase]: For 270/270 co-relation queries the response was YES. [2025-03-04 15:23:36,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29070 conditions, 17248 events. 7865/17248 cut-off events. For 270/270 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 157113 event pairs, 6700 based on Foata normal form. 4/14004 useless extension candidates. Maximal degree in co-relation 29007. Up to 11660 conditions per place. [2025-03-04 15:23:36,777 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 73 selfloop transitions, 3 changer transitions 0/148 dead transitions. [2025-03-04 15:23:36,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 148 transitions, 494 flow [2025-03-04 15:23:36,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:36,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 365 transitions. [2025-03-04 15:23:36,779 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.553030303030303 [2025-03-04 15:23:36,779 INFO L175 Difference]: Start difference. First operand has 143 places, 147 transitions, 340 flow. Second operand 4 states and 365 transitions. [2025-03-04 15:23:36,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 148 transitions, 494 flow [2025-03-04 15:23:36,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 148 transitions, 492 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:23:36,782 INFO L231 Difference]: Finished difference. Result has 147 places, 148 transitions, 356 flow [2025-03-04 15:23:36,782 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=356, PETRI_PLACES=147, PETRI_TRANSITIONS=148} [2025-03-04 15:23:36,783 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 9 predicate places. [2025-03-04 15:23:36,783 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 148 transitions, 356 flow [2025-03-04 15:23:36,783 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) [2025-03-04 15:23:36,783 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:36,783 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:23:36,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:23:36,783 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-04 15:23:36,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:36,784 INFO L85 PathProgramCache]: Analyzing trace with hash 293675633, now seen corresponding path program 1 times [2025-03-04 15:23:36,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:36,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464070199] [2025-03-04 15:23:36,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:36,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:36,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:23:36,812 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:23:36,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:36,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:36,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:36,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:36,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464070199] [2025-03-04 15:23:36,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464070199] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:36,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057840406] [2025-03-04 15:23:36,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:36,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:36,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:36,897 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) [2025-03-04 15:23:36,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 15:23:36,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:23:37,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:23:37,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:37,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:37,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:23:37,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:37,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:37,053 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:37,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:37,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057840406] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:37,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:37,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 15:23:37,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751380429] [2025-03-04 15:23:37,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:37,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 15:23:37,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:37,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 15:23:37,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-04 15:23:37,123 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 165 [2025-03-04 15:23:37,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 148 transitions, 356 flow. Second operand has 10 states, 10 states have (on average 72.5) internal successors, (725), 10 states have internal predecessors, (725), 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) [2025-03-04 15:23:37,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:37,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 165 [2025-03-04 15:23:37,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:38,463 INFO L124 PetriNetUnfolderBase]: 7865/17264 cut-off events. [2025-03-04 15:23:38,464 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2025-03-04 15:23:38,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29128 conditions, 17264 events. 7865/17264 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 157160 event pairs, 6700 based on Foata normal form. 6/14022 useless extension candidates. Maximal degree in co-relation 29026. Up to 11650 conditions per place. [2025-03-04 15:23:38,535 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 76 selfloop transitions, 9 changer transitions 0/156 dead transitions. [2025-03-04 15:23:38,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 156 transitions, 556 flow [2025-03-04 15:23:38,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 15:23:38,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 15:23:38,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 726 transitions. [2025-03-04 15:23:38,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2025-03-04 15:23:38,538 INFO L175 Difference]: Start difference. First operand has 147 places, 148 transitions, 356 flow. Second operand 9 states and 726 transitions. [2025-03-04 15:23:38,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 156 transitions, 556 flow [2025-03-04 15:23:38,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 156 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:38,544 INFO L231 Difference]: Finished difference. Result has 157 places, 152 transitions, 406 flow [2025-03-04 15:23:38,545 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=406, PETRI_PLACES=157, PETRI_TRANSITIONS=152} [2025-03-04 15:23:38,545 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 19 predicate places. [2025-03-04 15:23:38,545 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 152 transitions, 406 flow [2025-03-04 15:23:38,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.5) internal successors, (725), 10 states have internal predecessors, (725), 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) [2025-03-04 15:23:38,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:38,546 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:38,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 15:23:38,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-04 15:23:38,750 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-04 15:23:38,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:38,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1245488232, now seen corresponding path program 1 times [2025-03-04 15:23:38,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:38,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459995870] [2025-03-04 15:23:38,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:38,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:38,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:23:38,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:23:38,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:38,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:38,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:38,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:38,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459995870] [2025-03-04 15:23:38,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459995870] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:38,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130229859] [2025-03-04 15:23:38,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:38,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:38,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:38,912 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) [2025-03-04 15:23:38,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 15:23:39,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:23:39,056 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:23:39,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:39,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:39,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:23:39,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:39,084 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:39,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:23:39,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130229859] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:39,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 15:23:39,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-04 15:23:39,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959980315] [2025-03-04 15:23:39,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:39,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:23:39,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:39,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:23:39,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-04 15:23:39,099 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 165 [2025-03-04 15:23:39,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 152 transitions, 406 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) [2025-03-04 15:23:39,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:39,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 165 [2025-03-04 15:23:39,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:40,411 INFO L124 PetriNetUnfolderBase]: 7865/17260 cut-off events. [2025-03-04 15:23:40,411 INFO L125 PetriNetUnfolderBase]: For 350/350 co-relation queries the response was YES. [2025-03-04 15:23:40,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29145 conditions, 17260 events. 7865/17260 cut-off events. For 350/350 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 157175 event pairs, 6700 based on Foata normal form. 4/14016 useless extension candidates. Maximal degree in co-relation 29043. Up to 11648 conditions per place. [2025-03-04 15:23:40,498 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 69 selfloop transitions, 8 changer transitions 0/150 dead transitions. [2025-03-04 15:23:40,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 150 transitions, 546 flow [2025-03-04 15:23:40,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:23:40,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:23:40,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2025-03-04 15:23:40,500 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5121212121212121 [2025-03-04 15:23:40,500 INFO L175 Difference]: Start difference. First operand has 157 places, 152 transitions, 406 flow. Second operand 6 states and 507 transitions. [2025-03-04 15:23:40,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 150 transitions, 546 flow [2025-03-04 15:23:40,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 150 transitions, 538 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:40,507 INFO L231 Difference]: Finished difference. Result has 157 places, 150 transitions, 400 flow [2025-03-04 15:23:40,507 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=400, PETRI_PLACES=157, PETRI_TRANSITIONS=150} [2025-03-04 15:23:40,508 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 19 predicate places. [2025-03-04 15:23:40,508 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 150 transitions, 400 flow [2025-03-04 15:23:40,509 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) [2025-03-04 15:23:40,509 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:40,509 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2025-03-04 15:23:40,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 15:23:40,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:40,710 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-04 15:23:40,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:40,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1544066925, now seen corresponding path program 1 times [2025-03-04 15:23:40,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:40,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13758587] [2025-03-04 15:23:40,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:40,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:40,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 15:23:40,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 15:23:40,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:40,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:40,848 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-04 15:23:40,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:40,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13758587] [2025-03-04 15:23:40,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13758587] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:40,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:40,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:40,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011113317] [2025-03-04 15:23:40,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:40,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:40,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:40,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:40,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:40,860 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2025-03-04 15:23:40,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 150 transitions, 400 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) [2025-03-04 15:23:40,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:40,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2025-03-04 15:23:40,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:42,038 INFO L124 PetriNetUnfolderBase]: 7865/17258 cut-off events. [2025-03-04 15:23:42,039 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2025-03-04 15:23:42,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29150 conditions, 17258 events. 7865/17258 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 157124 event pairs, 6700 based on Foata normal form. 2/14012 useless extension candidates. Maximal degree in co-relation 29049. Up to 11654 conditions per place. [2025-03-04 15:23:42,097 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 68 selfloop transitions, 9 changer transitions 0/150 dead transitions. [2025-03-04 15:23:42,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 150 transitions, 552 flow [2025-03-04 15:23:42,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:42,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:42,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2025-03-04 15:23:42,099 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5515151515151515 [2025-03-04 15:23:42,099 INFO L175 Difference]: Start difference. First operand has 157 places, 150 transitions, 400 flow. Second operand 4 states and 364 transitions. [2025-03-04 15:23:42,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 150 transitions, 552 flow [2025-03-04 15:23:42,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 150 transitions, 536 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-03-04 15:23:42,101 INFO L231 Difference]: Finished difference. Result has 154 places, 150 transitions, 408 flow [2025-03-04 15:23:42,102 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=408, PETRI_PLACES=154, PETRI_TRANSITIONS=150} [2025-03-04 15:23:42,102 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 16 predicate places. [2025-03-04 15:23:42,102 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 150 transitions, 408 flow [2025-03-04 15:23:42,102 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) [2025-03-04 15:23:42,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:42,102 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2025-03-04 15:23:42,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 15:23:42,103 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-04 15:23:42,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:42,103 INFO L85 PathProgramCache]: Analyzing trace with hash 2084628401, now seen corresponding path program 2 times [2025-03-04 15:23:42,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:42,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474578626] [2025-03-04 15:23:42,103 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:23:42,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:42,132 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-03-04 15:23:42,135 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 19 statements. [2025-03-04 15:23:42,136 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:23:42,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 15:23:42,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:42,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474578626] [2025-03-04 15:23:42,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474578626] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:42,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:42,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:23:42,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954961596] [2025-03-04 15:23:42,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:42,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:42,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:42,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:42,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:42,175 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 165 [2025-03-04 15:23:42,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 150 transitions, 408 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) [2025-03-04 15:23:42,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:42,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 165 [2025-03-04 15:23:42,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:43,264 INFO L124 PetriNetUnfolderBase]: 7865/17256 cut-off events. [2025-03-04 15:23:43,264 INFO L125 PetriNetUnfolderBase]: For 388/388 co-relation queries the response was YES. [2025-03-04 15:23:43,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29157 conditions, 17256 events. 7865/17256 cut-off events. For 388/388 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 157096 event pairs, 6700 based on Foata normal form. 2/14012 useless extension candidates. Maximal degree in co-relation 29031. Up to 11659 conditions per place. [2025-03-04 15:23:43,318 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 83 selfloop transitions, 3 changer transitions 0/158 dead transitions. [2025-03-04 15:23:43,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 158 transitions, 652 flow [2025-03-04 15:23:43,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:43,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:43,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 368 transitions. [2025-03-04 15:23:43,320 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5575757575757576 [2025-03-04 15:23:43,320 INFO L175 Difference]: Start difference. First operand has 154 places, 150 transitions, 408 flow. Second operand 4 states and 368 transitions. [2025-03-04 15:23:43,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 158 transitions, 652 flow [2025-03-04 15:23:43,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 158 transitions, 628 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:43,323 INFO L231 Difference]: Finished difference. Result has 157 places, 151 transitions, 419 flow [2025-03-04 15:23:43,323 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=152, 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=419, PETRI_PLACES=157, PETRI_TRANSITIONS=151} [2025-03-04 15:23:43,323 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 19 predicate places. [2025-03-04 15:23:43,323 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 151 transitions, 419 flow [2025-03-04 15:23:43,324 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) [2025-03-04 15:23:43,324 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:43,324 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:23:43,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 15:23:43,324 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-04 15:23:43,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:43,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1192804041, now seen corresponding path program 1 times [2025-03-04 15:23:43,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:43,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978001291] [2025-03-04 15:23:43,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:43,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:43,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 15:23:43,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 15:23:43,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:43,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 15:23:43,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:43,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978001291] [2025-03-04 15:23:43,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978001291] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:43,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005161082] [2025-03-04 15:23:43,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:43,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:43,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:43,489 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) [2025-03-04 15:23:43,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 15:23:43,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 15:23:43,670 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 15:23:43,670 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:43,670 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:43,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 15:23:43,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:43,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:43,820 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:43,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005161082] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:43,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:43,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2025-03-04 15:23:43,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847590565] [2025-03-04 15:23:43,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:43,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-04 15:23:43,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:43,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-04 15:23:43,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2025-03-04 15:23:43,877 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 165 [2025-03-04 15:23:43,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 151 transitions, 419 flow. Second operand has 19 states, 19 states have (on average 70.84210526315789) internal successors, (1346), 19 states have internal predecessors, (1346), 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) [2025-03-04 15:23:43,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:43,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 165 [2025-03-04 15:23:43,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:46,228 INFO L124 PetriNetUnfolderBase]: 7870/17358 cut-off events. [2025-03-04 15:23:46,229 INFO L125 PetriNetUnfolderBase]: For 635/635 co-relation queries the response was YES. [2025-03-04 15:23:46,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29516 conditions, 17358 events. 7870/17358 cut-off events. For 635/635 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 157697 event pairs, 6700 based on Foata normal form. 13/14125 useless extension candidates. Maximal degree in co-relation 29362. Up to 11649 conditions per place. [2025-03-04 15:23:46,320 INFO L140 encePairwiseOnDemand]: 156/165 looper letters, 112 selfloop transitions, 55 changer transitions 0/236 dead transitions. [2025-03-04 15:23:46,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 236 transitions, 1356 flow [2025-03-04 15:23:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-03-04 15:23:46,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2025-03-04 15:23:46,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3216 transitions. [2025-03-04 15:23:46,326 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44297520661157025 [2025-03-04 15:23:46,326 INFO L175 Difference]: Start difference. First operand has 157 places, 151 transitions, 419 flow. Second operand 44 states and 3216 transitions. [2025-03-04 15:23:46,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 236 transitions, 1356 flow [2025-03-04 15:23:46,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 236 transitions, 1352 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:46,331 INFO L231 Difference]: Finished difference. Result has 211 places, 199 transitions, 974 flow [2025-03-04 15:23:46,331 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=974, PETRI_PLACES=211, PETRI_TRANSITIONS=199} [2025-03-04 15:23:46,332 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 73 predicate places. [2025-03-04 15:23:46,332 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 199 transitions, 974 flow [2025-03-04 15:23:46,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 70.84210526315789) internal successors, (1346), 19 states have internal predecessors, (1346), 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) [2025-03-04 15:23:46,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:46,332 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:46,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 15:23:46,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:46,533 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-04 15:23:46,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:46,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1766792129, now seen corresponding path program 1 times [2025-03-04 15:23:46,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:46,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338262141] [2025-03-04 15:23:46,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:46,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:46,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 15:23:46,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 15:23:46,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:46,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:47,147 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:47,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:47,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338262141] [2025-03-04 15:23:47,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338262141] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:47,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291400165] [2025-03-04 15:23:47,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:47,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:47,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:47,150 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) [2025-03-04 15:23:47,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 15:23:47,364 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 15:23:47,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 15:23:47,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:47,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:47,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 15:23:47,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:47,549 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:47,549 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:47,767 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:47,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291400165] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:47,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:47,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-03-04 15:23:47,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50716733] [2025-03-04 15:23:47,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:47,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-04 15:23:47,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:47,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-04 15:23:47,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-03-04 15:23:47,853 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 165 [2025-03-04 15:23:47,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 199 transitions, 974 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) [2025-03-04 15:23:47,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:47,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 165 [2025-03-04 15:23:47,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:51,941 INFO L124 PetriNetUnfolderBase]: 7866/17510 cut-off events. [2025-03-04 15:23:51,941 INFO L125 PetriNetUnfolderBase]: For 2938/2938 co-relation queries the response was YES. [2025-03-04 15:23:52,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30407 conditions, 17510 events. 7866/17510 cut-off events. For 2938/2938 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 158103 event pairs, 6700 based on Foata normal form. 24/14288 useless extension candidates. Maximal degree in co-relation 30032. Up to 11653 conditions per place. [2025-03-04 15:23:52,148 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 145 selfloop transitions, 93 changer transitions 0/309 dead transitions. [2025-03-04 15:23:52,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 309 transitions, 2682 flow [2025-03-04 15:23:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-04 15:23:52,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-04 15:23:52,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2350 transitions. [2025-03-04 15:23:52,152 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45943304007820135 [2025-03-04 15:23:52,152 INFO L175 Difference]: Start difference. First operand has 211 places, 199 transitions, 974 flow. Second operand 31 states and 2350 transitions. [2025-03-04 15:23:52,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 309 transitions, 2682 flow [2025-03-04 15:23:52,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 309 transitions, 2574 flow, removed 43 selfloop flow, removed 5 redundant places. [2025-03-04 15:23:52,164 INFO L231 Difference]: Finished difference. Result has 245 places, 250 transitions, 1711 flow [2025-03-04 15:23:52,165 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1711, PETRI_PLACES=245, PETRI_TRANSITIONS=250} [2025-03-04 15:23:52,165 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 107 predicate places. [2025-03-04 15:23:52,165 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 250 transitions, 1711 flow [2025-03-04 15:23:52,166 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) [2025-03-04 15:23:52,167 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:52,167 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:52,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 15:23:52,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:52,367 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-04 15:23:52,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:52,368 INFO L85 PathProgramCache]: Analyzing trace with hash -2135847105, now seen corresponding path program 2 times [2025-03-04 15:23:52,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:52,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174517231] [2025-03-04 15:23:52,368 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:23:52,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:52,491 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-03-04 15:23:52,547 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 15:23:52,547 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:23:52,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:53,778 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:53,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:53,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174517231] [2025-03-04 15:23:53,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174517231] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:53,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071674577] [2025-03-04 15:23:53,779 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:23:53,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:53,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:53,781 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) [2025-03-04 15:23:53,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 15:23:54,059 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-03-04 15:23:54,220 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 15:23:54,220 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:23:54,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:54,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-04 15:23:54,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:54,326 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:54,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071674577] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:54,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:54,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2025-03-04 15:23:54,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567115227] [2025-03-04 15:23:54,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:54,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2025-03-04 15:23:54,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:54,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2025-03-04 15:23:54,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2025-03-04 15:23:55,101 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 165 [2025-03-04 15:23:55,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 250 transitions, 1711 flow. Second operand has 63 states, 63 states have (on average 72.61904761904762) internal successors, (4575), 63 states have internal predecessors, (4575), 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) [2025-03-04 15:23:55,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:55,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 165 [2025-03-04 15:23:55,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:01,415 INFO L124 PetriNetUnfolderBase]: 7866/17795 cut-off events. [2025-03-04 15:24:01,415 INFO L125 PetriNetUnfolderBase]: For 9921/9921 co-relation queries the response was YES. [2025-03-04 15:24:01,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32051 conditions, 17795 events. 7866/17795 cut-off events. For 9921/9921 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 158272 event pairs, 6700 based on Foata normal form. 45/14594 useless extension candidates. Maximal degree in co-relation 31255. Up to 11653 conditions per place. [2025-03-04 15:24:01,501 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 235 selfloop transitions, 183 changer transitions 0/489 dead transitions. [2025-03-04 15:24:01,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 489 transitions, 5621 flow [2025-03-04 15:24:01,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-03-04 15:24:01,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-03-04 15:24:01,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 4562 transitions. [2025-03-04 15:24:01,506 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45325384997516144 [2025-03-04 15:24:01,506 INFO L175 Difference]: Start difference. First operand has 245 places, 250 transitions, 1711 flow. Second operand 61 states and 4562 transitions. [2025-03-04 15:24:01,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 489 transitions, 5621 flow [2025-03-04 15:24:01,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 489 transitions, 5549 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-03-04 15:24:01,528 INFO L231 Difference]: Finished difference. Result has 309 places, 343 transitions, 3381 flow [2025-03-04 15:24:01,529 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1639, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=3381, PETRI_PLACES=309, PETRI_TRANSITIONS=343} [2025-03-04 15:24:01,529 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 171 predicate places. [2025-03-04 15:24:01,529 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 343 transitions, 3381 flow [2025-03-04 15:24:01,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 72.61904761904762) internal successors, (4575), 63 states have internal predecessors, (4575), 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) [2025-03-04 15:24:01,531 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:01,531 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-03-04 15:24:01,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 15:24:01,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:24:01,732 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-04 15:24:01,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:01,732 INFO L85 PathProgramCache]: Analyzing trace with hash -296758371, now seen corresponding path program 3 times [2025-03-04 15:24:01,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:01,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382854417] [2025-03-04 15:24:01,733 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:24:01,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:02,038 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 32 equivalence classes. [2025-03-04 15:25:01,074 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) and asserted 163 of 163 statements. [2025-03-04 15:25:01,074 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2025-03-04 15:25:01,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 15:25:01,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [100271874] [2025-03-04 15:25:01,099 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:25:01,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:25:01,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:25:01,102 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) [2025-03-04 15:25:01,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 15:25:01,590 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 32 equivalence classes. [2025-03-04 15:25:01,630 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 13 of 163 statements. [2025-03-04 15:25:01,630 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-04 15:25:01,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:01,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 15:25:01,638 INFO L279 TraceCheckSpWp]: Computing forward predicates...