./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 e2fb8bed 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-?-e2fb8be-m [2025-03-09 06:36:49,002 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:36:49,045 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:36:49,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:36:49,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:36:49,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:36:49,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:36:49,065 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:36:49,066 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:36:49,066 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:36:49,066 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:36:49,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:36:49,066 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:36:49,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:36:49,067 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:36:49,067 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:36:49,068 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:36:49,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:36:49,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:36:49,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:36:49,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:36:49,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:36:49,068 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:36:49,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:36:49,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:36:49,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:36:49,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:36:49,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:36:49,068 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:36:49,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:36:49,068 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 [2025-03-09 06:36:49,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:36:49,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:36:49,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:36:49,318 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:36:49,318 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:36:49,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-03-09 06:36:50,520 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1e788dce/d938ab5f59604f138c11689ff048ee1c/FLAG14b5391a5 [2025-03-09 06:36:50,770 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:36:50,770 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-03-09 06:36:50,781 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1e788dce/d938ab5f59604f138c11689ff048ee1c/FLAG14b5391a5 [2025-03-09 06:36:51,063 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1e788dce/d938ab5f59604f138c11689ff048ee1c [2025-03-09 06:36:51,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:36:51,066 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:36:51,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:36:51,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:36:51,070 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:36:51,071 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b739f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51, skipping insertion in model container [2025-03-09 06:36:51,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,102 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:36:51,348 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-09 06:36:51,349 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-09 06:36:51,349 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-09 06:36:51,349 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-09 06:36:51,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:36:51,421 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:36:51,452 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-09 06:36:51,452 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-09 06:36:51,453 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-09 06:36:51,455 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-09 06:36:51,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:36:51,514 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:36:51,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51 WrapperNode [2025-03-09 06:36:51,515 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:36:51,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:36:51,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:36:51,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:36:51,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,536 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,558 INFO L138 Inliner]: procedures = 280, calls = 143, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 388 [2025-03-09 06:36:51,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:36:51,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:36:51,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:36:51,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:36:51,565 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,571 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,589 INFO L175 MemorySlicer]: Split 105 memory accesses to 5 slices as follows [94, 2, 5, 2, 2]. 90 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [70, 2, 5, 0, 0]. The 15 writes are split as follows [13, 0, 0, 1, 1]. [2025-03-09 06:36:51,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,589 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,602 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,611 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,613 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,616 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:36:51,616 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:36:51,616 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:36:51,617 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:36:51,617 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51" (1/1) ... [2025-03-09 06:36:51,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:36:51,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:36:51,649 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) [2025-03-09 06:36:51,652 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 [2025-03-09 06:36:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 06:36:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-09 06:36:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-09 06:36:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-09 06:36:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-09 06:36:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-09 06:36:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-03-09 06:36:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-03-09 06:36:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 06:36:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-09 06:36:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-03-09 06:36:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-09 06:36:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-09 06:36:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-09 06:36:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 06:36:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:36:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-09 06:36:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-09 06:36:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-09 06:36:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-09 06:36:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-09 06:36:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:36:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:36:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 06:36:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-09 06:36:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-09 06:36:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:36:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:36:51,675 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:36:51,817 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:36:51,819 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:36:52,310 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-03-09 06:36:52,310 INFO L1307 $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 [2025-03-09 06:36:52,310 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-03-09 06:36:52,310 INFO L1307 $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 [2025-03-09 06:36:52,311 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:36:52,311 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:36:52,786 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:36:52,787 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:36:52,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:36:52 BoogieIcfgContainer [2025-03-09 06:36:52,788 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:36:52,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:36:52,790 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:36:52,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:36:52,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:36:51" (1/3) ... [2025-03-09 06:36:52,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73af31e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:36:52, skipping insertion in model container [2025-03-09 06:36:52,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:51" (2/3) ... [2025-03-09 06:36:52,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73af31e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:36:52, skipping insertion in model container [2025-03-09 06:36:52,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:36:52" (3/3) ... [2025-03-09 06:36:52,797 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2025-03-09 06:36:52,810 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:36:52,813 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. [2025-03-09 06:36:52,813 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:36:52,886 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-09 06:36:52,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 165 transitions, 350 flow [2025-03-09 06:36:52,992 INFO L124 PetriNetUnfolderBase]: 49/276 cut-off events. [2025-03-09 06:36:52,994 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-09 06:36:53,002 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. [2025-03-09 06:36:53,003 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 165 transitions, 350 flow [2025-03-09 06:36:53,012 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 165 transitions, 350 flow [2025-03-09 06:36:53,021 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:36:53,032 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;@1d5b30bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:36:53,032 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2025-03-09 06:36:53,039 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:36:53,039 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-03-09 06:36:53,039 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:36:53,040 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:53,041 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-09 06:36:53,041 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)] === [2025-03-09 06:36:53,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:53,046 INFO L85 PathProgramCache]: Analyzing trace with hash 29566975, now seen corresponding path program 1 times [2025-03-09 06:36:53,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:53,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445737675] [2025-03-09 06:36:53,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:53,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:53,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:36:53,218 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:36:53,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:53,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 06:36:53,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [904954478] [2025-03-09 06:36:53,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:53,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:36:53,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:36:53,225 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) [2025-03-09 06:36:53,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 06:36:53,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:36:53,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:36:53,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:53,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:53,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 06:36:53,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:36:53,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:53,411 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:36:53,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:53,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445737675] [2025-03-09 06:36:53,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 06:36:53,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904954478] [2025-03-09 06:36:53,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904954478] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:53,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:36:53,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:36:53,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034166483] [2025-03-09 06:36:53,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:53,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:36:53,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:53,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:36:53,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:36:53,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 165 [2025-03-09 06:36:53,449 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) [2025-03-09 06:36:53,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:53,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 165 [2025-03-09 06:36:53,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:55,147 INFO L124 PetriNetUnfolderBase]: 7865/17238 cut-off events. [2025-03-09 06:36:55,148 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2025-03-09 06:36:55,187 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. [2025-03-09 06:36:55,264 INFO L140 encePairwiseOnDemand]: 140/165 looper letters, 74 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2025-03-09 06:36:55,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 150 transitions, 472 flow [2025-03-09 06:36:55,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:36:55,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:36:55,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2025-03-09 06:36:55,274 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6484848484848484 [2025-03-09 06:36:55,275 INFO L175 Difference]: Start difference. First operand has 138 places, 165 transitions, 350 flow. Second operand 3 states and 321 transitions. [2025-03-09 06:36:55,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 150 transitions, 472 flow [2025-03-09 06:36:55,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 150 transitions, 472 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:36:55,282 INFO L231 Difference]: Finished difference. Result has 141 places, 146 transitions, 326 flow [2025-03-09 06:36:55,285 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} [2025-03-09 06:36:55,290 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 3 predicate places. [2025-03-09 06:36:55,291 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 146 transitions, 326 flow [2025-03-09 06:36:55,291 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) [2025-03-09 06:36:55,291 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:55,291 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-09 06:36:55,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-09 06:36:55,496 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 [2025-03-09 06:36:55,497 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)] === [2025-03-09 06:36:55,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:55,498 INFO L85 PathProgramCache]: Analyzing trace with hash 29566931, now seen corresponding path program 1 times [2025-03-09 06:36:55,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:55,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532409851] [2025-03-09 06:36:55,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:55,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:55,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:36:55,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:36:55,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:55,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:55,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:55,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:55,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532409851] [2025-03-09 06:36:55,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532409851] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:55,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:36:55,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:36:55,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716654563] [2025-03-09 06:36:55,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:55,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:36:55,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:55,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:36:55,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:36:55,734 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 165 [2025-03-09 06:36:55,734 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) [2025-03-09 06:36:55,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:55,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 165 [2025-03-09 06:36:55,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:57,159 INFO L124 PetriNetUnfolderBase]: 7865/17252 cut-off events. [2025-03-09 06:36:57,159 INFO L125 PetriNetUnfolderBase]: For 262/262 co-relation queries the response was YES. [2025-03-09 06:36:57,200 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. [2025-03-09 06:36:57,376 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 72 selfloop transitions, 2 changer transitions 0/148 dead transitions. [2025-03-09 06:36:57,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 148 transitions, 478 flow [2025-03-09 06:36:57,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:36:57,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:36:57,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2025-03-09 06:36:57,378 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.602020202020202 [2025-03-09 06:36:57,379 INFO L175 Difference]: Start difference. First operand has 141 places, 146 transitions, 326 flow. Second operand 3 states and 298 transitions. [2025-03-09 06:36:57,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 148 transitions, 478 flow [2025-03-09 06:36:57,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 148 transitions, 476 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:36:57,384 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 340 flow [2025-03-09 06:36:57,385 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} [2025-03-09 06:36:57,386 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 5 predicate places. [2025-03-09 06:36:57,386 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 340 flow [2025-03-09 06:36:57,386 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) [2025-03-09 06:36:57,386 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:57,387 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 06:36:57,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:36:57,387 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)] === [2025-03-09 06:36:57,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:57,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1650880390, now seen corresponding path program 1 times [2025-03-09 06:36:57,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:57,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481249] [2025-03-09 06:36:57,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:57,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:57,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:36:57,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:36:57,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:57,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:57,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:57,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:57,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481249] [2025-03-09 06:36:57,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481249] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:57,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:36:57,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:36:57,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937654617] [2025-03-09 06:36:57,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:57,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:36:57,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:57,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:36:57,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:36:57,543 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 165 [2025-03-09 06:36:57,544 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) [2025-03-09 06:36:57,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:57,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 165 [2025-03-09 06:36:57,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:58,728 INFO L124 PetriNetUnfolderBase]: 7865/17248 cut-off events. [2025-03-09 06:36:58,729 INFO L125 PetriNetUnfolderBase]: For 270/270 co-relation queries the response was YES. [2025-03-09 06:36:58,755 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. [2025-03-09 06:36:58,815 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 73 selfloop transitions, 3 changer transitions 0/148 dead transitions. [2025-03-09 06:36:58,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 148 transitions, 494 flow [2025-03-09 06:36:58,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:36:58,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:36:58,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 365 transitions. [2025-03-09 06:36:58,820 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.553030303030303 [2025-03-09 06:36:58,820 INFO L175 Difference]: Start difference. First operand has 143 places, 147 transitions, 340 flow. Second operand 4 states and 365 transitions. [2025-03-09 06:36:58,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 148 transitions, 494 flow [2025-03-09 06:36:58,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 148 transitions, 492 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:36:58,825 INFO L231 Difference]: Finished difference. Result has 147 places, 148 transitions, 356 flow [2025-03-09 06:36:58,826 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} [2025-03-09 06:36:58,826 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 9 predicate places. [2025-03-09 06:36:58,826 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 148 transitions, 356 flow [2025-03-09 06:36:58,828 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) [2025-03-09 06:36:58,829 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:58,829 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:36:58,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:36:58,829 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)] === [2025-03-09 06:36:58,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:58,830 INFO L85 PathProgramCache]: Analyzing trace with hash 293675633, now seen corresponding path program 1 times [2025-03-09 06:36:58,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:58,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256231896] [2025-03-09 06:36:58,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:58,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:58,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:36:58,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:36:58,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:58,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:59,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:59,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:59,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256231896] [2025-03-09 06:36:59,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256231896] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:36:59,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759303375] [2025-03-09 06:36:59,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:59,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:36:59,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:36:59,022 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) [2025-03-09 06:36:59,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 06:36:59,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:36:59,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:36:59,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:59,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:59,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:36:59,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:36:59,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:59,200 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:36:59,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:59,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759303375] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:36:59,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:36:59,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-09 06:36:59,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355498125] [2025-03-09 06:36:59,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:36:59,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 06:36:59,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:59,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 06:36:59,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-09 06:36:59,280 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 165 [2025-03-09 06:36:59,282 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) [2025-03-09 06:36:59,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:59,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 165 [2025-03-09 06:36:59,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:01,010 INFO L124 PetriNetUnfolderBase]: 7865/17264 cut-off events. [2025-03-09 06:37:01,011 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2025-03-09 06:37:01,038 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. [2025-03-09 06:37:01,091 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 76 selfloop transitions, 9 changer transitions 0/156 dead transitions. [2025-03-09 06:37:01,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 156 transitions, 556 flow [2025-03-09 06:37:01,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 06:37:01,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-09 06:37:01,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 726 transitions. [2025-03-09 06:37:01,093 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2025-03-09 06:37:01,094 INFO L175 Difference]: Start difference. First operand has 147 places, 148 transitions, 356 flow. Second operand 9 states and 726 transitions. [2025-03-09 06:37:01,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 156 transitions, 556 flow [2025-03-09 06:37:01,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 156 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:37:01,097 INFO L231 Difference]: Finished difference. Result has 157 places, 152 transitions, 406 flow [2025-03-09 06:37:01,097 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} [2025-03-09 06:37:01,097 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 19 predicate places. [2025-03-09 06:37:01,097 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 152 transitions, 406 flow [2025-03-09 06:37:01,098 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) [2025-03-09 06:37:01,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:01,098 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-03-09 06:37:01,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 06:37:01,298 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 [2025-03-09 06:37:01,299 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)] === [2025-03-09 06:37:01,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1245488232, now seen corresponding path program 1 times [2025-03-09 06:37:01,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:01,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904160538] [2025-03-09 06:37:01,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:01,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:01,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:37:01,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:37:01,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:01,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:01,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:01,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:01,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904160538] [2025-03-09 06:37:01,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904160538] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:37:01,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692450317] [2025-03-09 06:37:01,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:01,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:37:01,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:37:01,455 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) [2025-03-09 06:37:01,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 06:37:01,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:37:01,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:37:01,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:01,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:01,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:37:01,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:37:01,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:01,640 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:37:01,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692450317] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:01,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:37:01,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-09 06:37:01,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588223790] [2025-03-09 06:37:01,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:01,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:37:01,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:01,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:37:01,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-09 06:37:01,653 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2025-03-09 06:37:01,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 152 transitions, 406 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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) [2025-03-09 06:37:01,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:01,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2025-03-09 06:37:01,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:02,744 INFO L124 PetriNetUnfolderBase]: 7865/17260 cut-off events. [2025-03-09 06:37:02,744 INFO L125 PetriNetUnfolderBase]: For 320/320 co-relation queries the response was YES. [2025-03-09 06:37:02,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29147 conditions, 17260 events. 7865/17260 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 157212 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. [2025-03-09 06:37:02,833 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 68 selfloop transitions, 8 changer transitions 0/150 dead transitions. [2025-03-09 06:37:02,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 150 transitions, 544 flow [2025-03-09 06:37:02,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:37:02,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:37:02,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2025-03-09 06:37:02,834 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5515151515151515 [2025-03-09 06:37:02,834 INFO L175 Difference]: Start difference. First operand has 157 places, 152 transitions, 406 flow. Second operand 4 states and 364 transitions. [2025-03-09 06:37:02,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 150 transitions, 544 flow [2025-03-09 06:37:02,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 150 transitions, 536 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-09 06:37:02,838 INFO L231 Difference]: Finished difference. Result has 155 places, 150 transitions, 400 flow [2025-03-09 06:37:02,838 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=4, PETRI_FLOW=400, PETRI_PLACES=155, PETRI_TRANSITIONS=150} [2025-03-09 06:37:02,839 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 17 predicate places. [2025-03-09 06:37:02,839 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 150 transitions, 400 flow [2025-03-09 06:37:02,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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) [2025-03-09 06:37:02,839 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:02,839 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2025-03-09 06:37:02,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-09 06:37:03,039 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 [2025-03-09 06:37:03,040 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)] === [2025-03-09 06:37:03,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:03,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1544066925, now seen corresponding path program 1 times [2025-03-09 06:37:03,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:03,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914082136] [2025-03-09 06:37:03,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:03,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:03,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 06:37:03,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 06:37:03,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:03,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:03,174 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 06:37:03,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:03,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914082136] [2025-03-09 06:37:03,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914082136] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:03,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:03,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:37:03,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974254672] [2025-03-09 06:37:03,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:03,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:37:03,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:03,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:37:03,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:37:03,186 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2025-03-09 06:37:03,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 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) [2025-03-09 06:37:03,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:03,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2025-03-09 06:37:03,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:04,220 INFO L124 PetriNetUnfolderBase]: 7865/17258 cut-off events. [2025-03-09 06:37:04,221 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2025-03-09 06:37:04,250 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. [2025-03-09 06:37:04,298 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 68 selfloop transitions, 9 changer transitions 0/150 dead transitions. [2025-03-09 06:37:04,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 150 transitions, 552 flow [2025-03-09 06:37:04,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:37:04,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:37:04,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2025-03-09 06:37:04,300 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5515151515151515 [2025-03-09 06:37:04,300 INFO L175 Difference]: Start difference. First operand has 155 places, 150 transitions, 400 flow. Second operand 4 states and 364 transitions. [2025-03-09 06:37:04,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 150 transitions, 552 flow [2025-03-09 06:37:04,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 150 transitions, 532 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-09 06:37:04,304 INFO L231 Difference]: Finished difference. Result has 153 places, 150 transitions, 404 flow [2025-03-09 06:37:04,305 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=149, 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=404, PETRI_PLACES=153, PETRI_TRANSITIONS=150} [2025-03-09 06:37:04,308 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 15 predicate places. [2025-03-09 06:37:04,308 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 404 flow [2025-03-09 06:37:04,308 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) [2025-03-09 06:37:04,308 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:04,308 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2025-03-09 06:37:04,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:37:04,309 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)] === [2025-03-09 06:37:04,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:04,309 INFO L85 PathProgramCache]: Analyzing trace with hash 2084628401, now seen corresponding path program 2 times [2025-03-09 06:37:04,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:04,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860854000] [2025-03-09 06:37:04,309 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:37:04,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:04,353 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-03-09 06:37:04,357 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 19 statements. [2025-03-09 06:37:04,357 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:37:04,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:04,390 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-09 06:37:04,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:04,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860854000] [2025-03-09 06:37:04,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860854000] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:04,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:04,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:37:04,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142753426] [2025-03-09 06:37:04,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:04,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:37:04,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:04,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:37:04,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:37:04,400 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 165 [2025-03-09 06:37:04,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 404 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) [2025-03-09 06:37:04,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:04,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 165 [2025-03-09 06:37:04,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:05,841 INFO L124 PetriNetUnfolderBase]: 7865/17256 cut-off events. [2025-03-09 06:37:05,841 INFO L125 PetriNetUnfolderBase]: For 376/376 co-relation queries the response was YES. [2025-03-09 06:37:05,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29154 conditions, 17256 events. 7865/17256 cut-off events. For 376/376 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 157154 event pairs, 6700 based on Foata normal form. 2/14012 useless extension candidates. Maximal degree in co-relation 29030. Up to 11659 conditions per place. [2025-03-09 06:37:05,952 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 83 selfloop transitions, 3 changer transitions 0/158 dead transitions. [2025-03-09 06:37:05,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 158 transitions, 644 flow [2025-03-09 06:37:05,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:37:05,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:37:05,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 368 transitions. [2025-03-09 06:37:05,954 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5575757575757576 [2025-03-09 06:37:05,954 INFO L175 Difference]: Start difference. First operand has 153 places, 150 transitions, 404 flow. Second operand 4 states and 368 transitions. [2025-03-09 06:37:05,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 158 transitions, 644 flow [2025-03-09 06:37:05,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 158 transitions, 620 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-09 06:37:05,958 INFO L231 Difference]: Finished difference. Result has 156 places, 151 transitions, 414 flow [2025-03-09 06:37:05,959 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=151, 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=414, PETRI_PLACES=156, PETRI_TRANSITIONS=151} [2025-03-09 06:37:05,959 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 18 predicate places. [2025-03-09 06:37:05,959 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 151 transitions, 414 flow [2025-03-09 06:37:05,959 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) [2025-03-09 06:37:05,960 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:05,960 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:05,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:37:05,960 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)] === [2025-03-09 06:37:05,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:05,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1192804041, now seen corresponding path program 1 times [2025-03-09 06:37:05,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:05,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414329707] [2025-03-09 06:37:05,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:05,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:06,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 06:37:06,014 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 06:37:06,014 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:06,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-09 06:37:06,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:06,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414329707] [2025-03-09 06:37:06,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414329707] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:37:06,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75736681] [2025-03-09 06:37:06,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:06,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:37:06,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:37:06,138 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) [2025-03-09 06:37:06,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 06:37:06,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 06:37:06,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 06:37:06,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:06,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:06,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-09 06:37:06,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:37:06,418 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:06,418 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:37:06,598 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:06,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75736681] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:37:06,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:37:06,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2025-03-09 06:37:06,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497187450] [2025-03-09 06:37:06,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:37:06,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-09 06:37:06,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:06,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-09 06:37:06,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2025-03-09 06:37:06,662 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 165 [2025-03-09 06:37:06,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 151 transitions, 414 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) [2025-03-09 06:37:06,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:06,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 165 [2025-03-09 06:37:06,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:09,277 INFO L124 PetriNetUnfolderBase]: 7870/17358 cut-off events. [2025-03-09 06:37:09,277 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2025-03-09 06:37:09,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29511 conditions, 17358 events. 7870/17358 cut-off events. For 591/591 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 157667 event pairs, 6700 based on Foata normal form. 13/14125 useless extension candidates. Maximal degree in co-relation 29358. Up to 11649 conditions per place. [2025-03-09 06:37:09,398 INFO L140 encePairwiseOnDemand]: 156/165 looper letters, 112 selfloop transitions, 55 changer transitions 0/236 dead transitions. [2025-03-09 06:37:09,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 236 transitions, 1344 flow [2025-03-09 06:37:09,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-03-09 06:37:09,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2025-03-09 06:37:09,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3216 transitions. [2025-03-09 06:37:09,404 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44297520661157025 [2025-03-09 06:37:09,404 INFO L175 Difference]: Start difference. First operand has 156 places, 151 transitions, 414 flow. Second operand 44 states and 3216 transitions. [2025-03-09 06:37:09,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 236 transitions, 1344 flow [2025-03-09 06:37:09,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 236 transitions, 1340 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:37:09,410 INFO L231 Difference]: Finished difference. Result has 210 places, 199 transitions, 963 flow [2025-03-09 06:37:09,410 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=154, 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=963, PETRI_PLACES=210, PETRI_TRANSITIONS=199} [2025-03-09 06:37:09,410 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 72 predicate places. [2025-03-09 06:37:09,411 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 199 transitions, 963 flow [2025-03-09 06:37:09,411 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) [2025-03-09 06:37:09,412 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:09,412 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2025-03-09 06:37:09,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 06:37:09,612 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 [2025-03-09 06:37:09,612 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)] === [2025-03-09 06:37:09,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:09,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1766792129, now seen corresponding path program 1 times [2025-03-09 06:37:09,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:09,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474525320] [2025-03-09 06:37:09,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:09,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:09,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-09 06:37:09,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-09 06:37:09,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:09,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:10,238 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-09 06:37:10,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:10,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474525320] [2025-03-09 06:37:10,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474525320] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:37:10,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377223862] [2025-03-09 06:37:10,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:10,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:37:10,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:37:10,241 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) [2025-03-09 06:37:10,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 06:37:10,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-09 06:37:10,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-09 06:37:10,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:10,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:10,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 06:37:10,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:37:10,621 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-09 06:37:10,621 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:37:10,808 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-09 06:37:10,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377223862] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:37:10,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:37:10,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-03-09 06:37:10,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879667143] [2025-03-09 06:37:10,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:37:10,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-09 06:37:10,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:10,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-09 06:37:10,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-03-09 06:37:10,892 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 165 [2025-03-09 06:37:10,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 199 transitions, 963 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) [2025-03-09 06:37:10,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:10,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 165 [2025-03-09 06:37:10,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:14,106 INFO L124 PetriNetUnfolderBase]: 7866/17510 cut-off events. [2025-03-09 06:37:14,106 INFO L125 PetriNetUnfolderBase]: For 2733/2733 co-relation queries the response was YES. [2025-03-09 06:37:14,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30402 conditions, 17510 events. 7866/17510 cut-off events. For 2733/2733 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 158127 event pairs, 6700 based on Foata normal form. 24/14288 useless extension candidates. Maximal degree in co-relation 30028. Up to 11653 conditions per place. [2025-03-09 06:37:14,325 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 145 selfloop transitions, 93 changer transitions 0/309 dead transitions. [2025-03-09 06:37:14,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 309 transitions, 2671 flow [2025-03-09 06:37:14,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-09 06:37:14,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-09 06:37:14,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2350 transitions. [2025-03-09 06:37:14,329 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45943304007820135 [2025-03-09 06:37:14,329 INFO L175 Difference]: Start difference. First operand has 210 places, 199 transitions, 963 flow. Second operand 31 states and 2350 transitions. [2025-03-09 06:37:14,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 309 transitions, 2671 flow [2025-03-09 06:37:14,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 309 transitions, 2437 flow, removed 103 selfloop flow, removed 6 redundant places. [2025-03-09 06:37:14,341 INFO L231 Difference]: Finished difference. Result has 243 places, 250 transitions, 1574 flow [2025-03-09 06:37:14,342 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=204, 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=1574, PETRI_PLACES=243, PETRI_TRANSITIONS=250} [2025-03-09 06:37:14,342 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 105 predicate places. [2025-03-09 06:37:14,343 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 250 transitions, 1574 flow [2025-03-09 06:37:14,344 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) [2025-03-09 06:37:14,344 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:14,344 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2025-03-09 06:37:14,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 06:37:14,544 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 [2025-03-09 06:37:14,544 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)] === [2025-03-09 06:37:14,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:14,545 INFO L85 PathProgramCache]: Analyzing trace with hash -2135847105, now seen corresponding path program 2 times [2025-03-09 06:37:14,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:14,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793295170] [2025-03-09 06:37:14,545 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:37:14,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:14,670 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-03-09 06:37:14,764 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-03-09 06:37:14,765 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:37:14,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:16,076 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-09 06:37:16,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:16,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793295170] [2025-03-09 06:37:16,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793295170] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:37:16,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273309905] [2025-03-09 06:37:16,076 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:37:16,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:37:16,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:37:16,078 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) [2025-03-09 06:37:16,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 06:37:16,360 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-03-09 06:37:16,536 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-03-09 06:37:16,537 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:37:16,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:16,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-09 06:37:16,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:37:16,649 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-09 06:37:16,649 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:37:17,386 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-09 06:37:17,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273309905] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:37:17,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:37:17,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2025-03-09 06:37:17,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028612915] [2025-03-09 06:37:17,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:37:17,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2025-03-09 06:37:17,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:17,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2025-03-09 06:37:17,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2025-03-09 06:37:17,542 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 165 [2025-03-09 06:37:17,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 250 transitions, 1574 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) [2025-03-09 06:37:17,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:17,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 165 [2025-03-09 06:37:17,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:23,717 INFO L124 PetriNetUnfolderBase]: 7866/17795 cut-off events. [2025-03-09 06:37:23,717 INFO L125 PetriNetUnfolderBase]: For 8860/8860 co-relation queries the response was YES. [2025-03-09 06:37:23,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31922 conditions, 17795 events. 7866/17795 cut-off events. For 8860/8860 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 158230 event pairs, 6700 based on Foata normal form. 45/14594 useless extension candidates. Maximal degree in co-relation 31185. Up to 11653 conditions per place. [2025-03-09 06:37:23,998 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 235 selfloop transitions, 183 changer transitions 0/489 dead transitions. [2025-03-09 06:37:23,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 489 transitions, 5364 flow [2025-03-09 06:37:24,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-03-09 06:37:24,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-03-09 06:37:24,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 4562 transitions. [2025-03-09 06:37:24,008 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45325384997516144 [2025-03-09 06:37:24,008 INFO L175 Difference]: Start difference. First operand has 243 places, 250 transitions, 1574 flow. Second operand 61 states and 4562 transitions. [2025-03-09 06:37:24,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 489 transitions, 5364 flow [2025-03-09 06:37:24,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 489 transitions, 5260 flow, removed 16 selfloop flow, removed 12 redundant places. [2025-03-09 06:37:24,037 INFO L231 Difference]: Finished difference. Result has 307 places, 343 transitions, 3092 flow [2025-03-09 06:37:24,037 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1470, PETRI_DIFFERENCE_MINUEND_PLACES=231, 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=3092, PETRI_PLACES=307, PETRI_TRANSITIONS=343} [2025-03-09 06:37:24,038 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 169 predicate places. [2025-03-09 06:37:24,038 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 343 transitions, 3092 flow [2025-03-09 06:37:24,040 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) [2025-03-09 06:37:24,040 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:24,040 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-03-09 06:37:24,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 06:37:24,240 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 [2025-03-09 06:37:24,241 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)] === [2025-03-09 06:37:24,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:24,243 INFO L85 PathProgramCache]: Analyzing trace with hash -296758371, now seen corresponding path program 3 times [2025-03-09 06:37:24,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:24,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827729771] [2025-03-09 06:37:24,243 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 06:37:24,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:24,478 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 32 equivalence classes.