./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 60539e5483ee028af31550fcc6bdc40a30b35263f2407e34b5392a698998aa9c --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:07:37,782 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:07:37,842 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:07:37,847 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:07:37,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:07:37,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:07:37,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:07:37,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:07:37,872 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:07:37,873 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:07:37,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:07:37,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:07:37,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:07:37,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:07:37,874 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:07:37,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:07:37,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:07:37,874 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:07:37,875 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:07:37,875 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:07:37,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:07:37,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:07:37,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:07:37,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:07:37,875 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:07:37,875 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:07:37,875 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:07:37,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:07:37,875 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:07:37,875 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:07:37,876 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:07:37,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:07:37,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:07:37,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:07:37,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:37,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:07:37,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:07:37,879 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:07:37,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:07:37,880 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:07:37,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:07:37,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:07:37,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:07:37,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:07:37,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:07:37,880 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-jdk21/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 -> 60539e5483ee028af31550fcc6bdc40a30b35263f2407e34b5392a698998aa9c [2025-02-08 14:07:38,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:07:38,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:07:38,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:07:38,089 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:07:38,089 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:07:38,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c [2025-02-08 14:07:39,196 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c99d70bb7/9bc7fc3ed0c043ae8ad593f228866103/FLAG1cc5253d7 [2025-02-08 14:07:39,521 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:07:39,522 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c [2025-02-08 14:07:39,532 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c99d70bb7/9bc7fc3ed0c043ae8ad593f228866103/FLAG1cc5253d7 [2025-02-08 14:07:39,766 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c99d70bb7/9bc7fc3ed0c043ae8ad593f228866103 [2025-02-08 14:07:39,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:07:39,769 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:07:39,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:39,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:07:39,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:07:39,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:39,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4739681a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39, skipping insertion in model container [2025-02-08 14:07:39,778 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:39,792 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:07:39,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:39,951 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:07:39,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:39,993 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:07:39,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39 WrapperNode [2025-02-08 14:07:39,994 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:39,995 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:39,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:07:39,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:07:40,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:40,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:40,040 INFO L138 Inliner]: procedures = 25, calls = 33, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 309 [2025-02-08 14:07:40,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:40,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:07:40,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:07:40,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:07:40,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:40,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:40,065 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:40,088 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [2, 9]. 82 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2025-02-08 14:07:40,088 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:40,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:40,099 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:40,102 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:40,104 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:40,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:40,113 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:07:40,114 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:07:40,114 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:07:40,114 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:07:40,115 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39" (1/1) ... [2025-02-08 14:07:40,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:40,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:40,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:07:40,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:07:40,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:07:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:07:40,163 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:07:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:07:40,163 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:07:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 14:07:40,163 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 14:07:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:07:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:07:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:07:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:07:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 14:07:40,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:07:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:07:40,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:07:40,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:07:40,165 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:07:40,248 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:07:40,249 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:07:40,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56: havoc #t~post4#1; [2025-02-08 14:07:40,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-1: assume 1 + #t~post4#1 <= 2147483647; [2025-02-08 14:07:40,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-1: assume !(1 + #t~post4#1 <= 2147483647); [2025-02-08 14:07:40,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-2: ~i~0#1 := 1 + #t~post4#1; [2025-02-08 14:07:40,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-3: assume 1 + #t~post4#1 >= -2147483648; [2025-02-08 14:07:40,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-3: assume !(1 + #t~post4#1 >= -2147483648); [2025-02-08 14:07:40,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-4: #t~post4#1 := ~i~0#1; [2025-02-08 14:07:40,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54: havoc #t~ret3#1; [2025-02-08 14:07:40,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54-1: havoc #t~mem2#1; [2025-02-08 14:07:40,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54-2: havoc #t~mem1#1; [2025-02-08 14:07:40,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54-3: ~result_7~0 := #t~ret3#1; [2025-02-08 14:07:40,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54-4: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret3#1 && #t~ret3#1 <= 2147483647; [2025-02-08 14:07:40,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54-5: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:07:40,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54-6: havoc minus_#t~short28#1, minus_#t~short29#1, minus_~a#1, minus_~b#1; [2025-02-08 14:07:40,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54-7: #t~ret3#1 := minus_#res#1; [2025-02-08 14:07:40,384 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55: ~stop~0#1 := (if 0 == (if 0 != ~result_7~0 then 1 else 0) then 0 else 1); [2025-02-08 14:07:40,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-3: ~result_10~0 := #t~ret7#1; [2025-02-08 14:07:40,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-4: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret7#1 && #t~ret7#1 <= 2147483647; [2025-02-08 14:07:40,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-5: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:07:40,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-6: havoc minus_#t~short28#1, minus_#t~short29#1, minus_~a#1, minus_~b#1; [2025-02-08 14:07:40,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-7: #t~ret7#1 := minus_#res#1; [2025-02-08 14:07:40,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L69: ~stop~1#1 := (if 0 == (if 0 != ~result_10~0 then 1 else 0) then 0 else 1); [2025-02-08 14:07:40,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70: havoc #t~post8#1; [2025-02-08 14:07:40,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-1: assume 1 + #t~post8#1 <= 2147483647; [2025-02-08 14:07:40,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-1: assume !(1 + #t~post8#1 <= 2147483647); [2025-02-08 14:07:40,473 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-2: ~i~1#1 := 1 + #t~post8#1; [2025-02-08 14:07:40,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-3: assume 1 + #t~post8#1 >= -2147483648; [2025-02-08 14:07:40,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-3: assume !(1 + #t~post8#1 >= -2147483648); [2025-02-08 14:07:40,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-4: #t~post8#1 := ~i~1#1; [2025-02-08 14:07:40,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68: havoc #t~ret7#1; [2025-02-08 14:07:40,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-1: havoc #t~mem6#1; [2025-02-08 14:07:40,474 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-2: havoc #t~mem5#1; [2025-02-08 14:07:40,525 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82: havoc #t~ret11#1; [2025-02-08 14:07:40,525 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82-1: havoc #t~mem10#1; [2025-02-08 14:07:40,525 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82-2: havoc #t~mem9#1; [2025-02-08 14:07:40,525 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82-3: ~result_13~0 := #t~ret11#1; [2025-02-08 14:07:40,525 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82-4: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret11#1 && #t~ret11#1 <= 2147483647; [2025-02-08 14:07:40,525 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82-5: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:07:40,525 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82-6: havoc minus_#t~short28#1, minus_#t~short29#1, minus_~a#1, minus_~b#1; [2025-02-08 14:07:40,526 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82-7: #t~ret11#1 := minus_#res#1; [2025-02-08 14:07:40,526 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L83: ~stop~2#1 := (if 0 == (if 0 != ~result_13~0 then 1 else 0) then 0 else 1); [2025-02-08 14:07:40,526 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84: havoc #t~post12#1; [2025-02-08 14:07:40,526 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-1: assume 1 + #t~post12#1 <= 2147483647; [2025-02-08 14:07:40,526 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-1: assume !(1 + #t~post12#1 <= 2147483647); [2025-02-08 14:07:40,526 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-2: ~i~2#1 := 1 + #t~post12#1; [2025-02-08 14:07:40,526 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-3: assume 1 + #t~post12#1 >= -2147483648; [2025-02-08 14:07:40,526 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-3: assume !(1 + #t~post12#1 >= -2147483648); [2025-02-08 14:07:40,526 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-4: #t~post12#1 := ~i~2#1; [2025-02-08 14:07:40,647 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:07:40,648 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:07:40,846 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:07:40,846 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:07:40,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:40 BoogieIcfgContainer [2025-02-08 14:07:40,847 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:07:40,848 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:07:40,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:07:40,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:07:40,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:07:39" (1/3) ... [2025-02-08 14:07:40,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b17a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:40, skipping insertion in model container [2025-02-08 14:07:40,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:39" (2/3) ... [2025-02-08 14:07:40,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b17a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:40, skipping insertion in model container [2025-02-08 14:07:40,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:40" (3/3) ... [2025-02-08 14:07:40,854 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-chromosome-subst.wvr.c [2025-02-08 14:07:40,865 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:07:40,866 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-chromosome-subst.wvr.c that has 4 procedures, 87 locations, 1 initial locations, 6 loop locations, and 30 error locations. [2025-02-08 14:07:40,866 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:07:40,918 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:07:40,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 95 transitions, 211 flow [2025-02-08 14:07:40,966 INFO L124 PetriNetUnfolderBase]: 9/92 cut-off events. [2025-02-08 14:07:40,968 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:07:40,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 92 events. 9/92 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 354 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2025-02-08 14:07:40,971 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 95 transitions, 211 flow [2025-02-08 14:07:40,974 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 90 transitions, 195 flow [2025-02-08 14:07:40,979 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:07:40,987 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;@34c02bf2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:07:40,987 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2025-02-08 14:07:40,990 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:07:40,990 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-08 14:07:40,990 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:07:40,990 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:40,991 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:07:40,991 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:40,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:40,995 INFO L85 PathProgramCache]: Analyzing trace with hash 851201, now seen corresponding path program 1 times [2025-02-08 14:07:41,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:41,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863578676] [2025-02-08 14:07:41,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:41,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:41,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:07:41,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:07:41,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:41,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:41,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:41,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:41,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863578676] [2025-02-08 14:07:41,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863578676] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:41,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:41,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:41,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608946064] [2025-02-08 14:07:41,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:41,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:41,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:41,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:41,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:41,190 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:41,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 90 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 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) [2025-02-08 14:07:41,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:41,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:41,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:41,891 INFO L124 PetriNetUnfolderBase]: 3672/7526 cut-off events. [2025-02-08 14:07:41,891 INFO L125 PetriNetUnfolderBase]: For 247/247 co-relation queries the response was YES. [2025-02-08 14:07:41,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12782 conditions, 7526 events. 3672/7526 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 64823 event pairs, 2736 based on Foata normal form. 3/5908 useless extension candidates. Maximal degree in co-relation 12121. Up to 5030 conditions per place. [2025-02-08 14:07:41,938 INFO L140 encePairwiseOnDemand]: 79/95 looper letters, 47 selfloop transitions, 10 changer transitions 0/99 dead transitions. [2025-02-08 14:07:41,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 99 transitions, 327 flow [2025-02-08 14:07:41,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:41,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:41,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 243 transitions. [2025-02-08 14:07:41,947 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6394736842105263 [2025-02-08 14:07:41,948 INFO L175 Difference]: Start difference. First operand has 91 places, 90 transitions, 195 flow. Second operand 4 states and 243 transitions. [2025-02-08 14:07:41,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 99 transitions, 327 flow [2025-02-08 14:07:41,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 99 transitions, 318 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 14:07:41,955 INFO L231 Difference]: Finished difference. Result has 92 places, 99 transitions, 274 flow [2025-02-08 14:07:41,957 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=92, PETRI_TRANSITIONS=99} [2025-02-08 14:07:41,959 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 1 predicate places. [2025-02-08 14:07:41,959 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 99 transitions, 274 flow [2025-02-08 14:07:41,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 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) [2025-02-08 14:07:41,960 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:41,960 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-08 14:07:41,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:07:41,960 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:41,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:41,961 INFO L85 PathProgramCache]: Analyzing trace with hash -410888932, now seen corresponding path program 1 times [2025-02-08 14:07:41,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:41,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144537388] [2025-02-08 14:07:41,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:41,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:41,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:07:41,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:07:41,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:41,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:42,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:42,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:42,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144537388] [2025-02-08 14:07:42,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144537388] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:42,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750510971] [2025-02-08 14:07:42,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:42,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:42,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:42,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:07:42,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 14:07:42,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:07:42,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:07:42,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:42,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:42,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:07:42,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:42,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:42,161 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:07:42,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750510971] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:42,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:07:42,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-08 14:07:42,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816961179] [2025-02-08 14:07:42,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:42,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:07:42,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:42,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:07:42,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:07:42,181 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:42,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 99 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 45.833333333333336) internal successors, (275), 6 states have internal predecessors, (275), 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) [2025-02-08 14:07:42,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:42,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:42,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:42,807 INFO L124 PetriNetUnfolderBase]: 3672/7523 cut-off events. [2025-02-08 14:07:42,808 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2025-02-08 14:07:42,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12728 conditions, 7523 events. 3672/7523 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 64799 event pairs, 2736 based on Foata normal form. 3/5910 useless extension candidates. Maximal degree in co-relation 12655. Up to 5015 conditions per place. [2025-02-08 14:07:42,842 INFO L140 encePairwiseOnDemand]: 82/95 looper letters, 37 selfloop transitions, 17 changer transitions 0/96 dead transitions. [2025-02-08 14:07:42,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 96 transitions, 370 flow [2025-02-08 14:07:42,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:07:42,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:07:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 327 transitions. [2025-02-08 14:07:42,845 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5736842105263158 [2025-02-08 14:07:42,845 INFO L175 Difference]: Start difference. First operand has 92 places, 99 transitions, 274 flow. Second operand 6 states and 327 transitions. [2025-02-08 14:07:42,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 96 transitions, 370 flow [2025-02-08 14:07:42,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 96 transitions, 370 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:07:42,847 INFO L231 Difference]: Finished difference. Result has 94 places, 96 transitions, 296 flow [2025-02-08 14:07:42,847 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=296, PETRI_PLACES=94, PETRI_TRANSITIONS=96} [2025-02-08 14:07:42,848 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 3 predicate places. [2025-02-08 14:07:42,848 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 96 transitions, 296 flow [2025-02-08 14:07:42,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.833333333333336) internal successors, (275), 6 states have internal predecessors, (275), 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) [2025-02-08 14:07:42,848 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:42,848 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 14:07:42,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 14:07:43,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:43,053 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:43,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:43,053 INFO L85 PathProgramCache]: Analyzing trace with hash 147345787, now seen corresponding path program 1 times [2025-02-08 14:07:43,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:43,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165359817] [2025-02-08 14:07:43,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:43,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:43,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:07:43,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:07:43,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:43,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:43,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:43,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165359817] [2025-02-08 14:07:43,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165359817] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:43,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960852929] [2025-02-08 14:07:43,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:43,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:43,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:43,133 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:07:43,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 14:07:43,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:07:43,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:07:43,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:43,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:43,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:07:43,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:43,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:43,243 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:43,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:43,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960852929] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:43,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:43,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-08 14:07:43,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557402940] [2025-02-08 14:07:43,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:43,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 14:07:43,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:43,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 14:07:43,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 14:07:43,378 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:43,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 96 transitions, 296 flow. Second operand has 12 states, 12 states have (on average 46.083333333333336) internal successors, (553), 12 states have internal predecessors, (553), 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) [2025-02-08 14:07:43,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:43,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:43,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:43,977 INFO L124 PetriNetUnfolderBase]: 3681/7559 cut-off events. [2025-02-08 14:07:43,977 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2025-02-08 14:07:43,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12869 conditions, 7559 events. 3681/7559 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 65224 event pairs, 2736 based on Foata normal form. 9/5952 useless extension candidates. Maximal degree in co-relation 12657. Up to 5030 conditions per place. [2025-02-08 14:07:44,010 INFO L140 encePairwiseOnDemand]: 82/95 looper letters, 44 selfloop transitions, 37 changer transitions 0/123 dead transitions. [2025-02-08 14:07:44,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 123 transitions, 632 flow [2025-02-08 14:07:44,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:07:44,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:07:44,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 540 transitions. [2025-02-08 14:07:44,014 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2025-02-08 14:07:44,014 INFO L175 Difference]: Start difference. First operand has 94 places, 96 transitions, 296 flow. Second operand 10 states and 540 transitions. [2025-02-08 14:07:44,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 123 transitions, 632 flow [2025-02-08 14:07:44,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 123 transitions, 549 flow, removed 16 selfloop flow, removed 5 redundant places. [2025-02-08 14:07:44,020 INFO L231 Difference]: Finished difference. Result has 101 places, 123 transitions, 511 flow [2025-02-08 14:07:44,021 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=511, PETRI_PLACES=101, PETRI_TRANSITIONS=123} [2025-02-08 14:07:44,022 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 10 predicate places. [2025-02-08 14:07:44,022 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 123 transitions, 511 flow [2025-02-08 14:07:44,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 46.083333333333336) internal successors, (553), 12 states have internal predecessors, (553), 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) [2025-02-08 14:07:44,023 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:44,023 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:44,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 14:07:44,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:44,224 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:44,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:44,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1642780935, now seen corresponding path program 1 times [2025-02-08 14:07:44,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:44,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827905833] [2025-02-08 14:07:44,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:44,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:44,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:07:44,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:07:44,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:44,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:44,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:44,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827905833] [2025-02-08 14:07:44,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827905833] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:44,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:44,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:44,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104827695] [2025-02-08 14:07:44,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:44,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:44,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:44,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:44,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:44,393 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:44,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 123 transitions, 511 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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) [2025-02-08 14:07:44,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:44,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:44,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:45,417 INFO L124 PetriNetUnfolderBase]: 7639/14004 cut-off events. [2025-02-08 14:07:45,417 INFO L125 PetriNetUnfolderBase]: For 173/173 co-relation queries the response was YES. [2025-02-08 14:07:45,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24948 conditions, 14004 events. 7639/14004 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 821. Compared 120978 event pairs, 2475 based on Foata normal form. 364/11661 useless extension candidates. Maximal degree in co-relation 24850. Up to 4781 conditions per place. [2025-02-08 14:07:45,483 INFO L140 encePairwiseOnDemand]: 88/95 looper letters, 125 selfloop transitions, 4 changer transitions 0/168 dead transitions. [2025-02-08 14:07:45,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 168 transitions, 865 flow [2025-02-08 14:07:45,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:45,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:45,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 276 transitions. [2025-02-08 14:07:45,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7263157894736842 [2025-02-08 14:07:45,486 INFO L175 Difference]: Start difference. First operand has 101 places, 123 transitions, 511 flow. Second operand 4 states and 276 transitions. [2025-02-08 14:07:45,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 168 transitions, 865 flow [2025-02-08 14:07:45,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 168 transitions, 828 flow, removed 9 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:45,492 INFO L231 Difference]: Finished difference. Result has 104 places, 124 transitions, 500 flow [2025-02-08 14:07:45,492 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=500, PETRI_PLACES=104, PETRI_TRANSITIONS=124} [2025-02-08 14:07:45,493 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 13 predicate places. [2025-02-08 14:07:45,493 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 124 transitions, 500 flow [2025-02-08 14:07:45,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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) [2025-02-08 14:07:45,494 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:45,494 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:45,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:07:45,494 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:45,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:45,495 INFO L85 PathProgramCache]: Analyzing trace with hash 613399393, now seen corresponding path program 1 times [2025-02-08 14:07:45,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:45,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923753304] [2025-02-08 14:07:45,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:45,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:45,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:07:45,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:07:45,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:45,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:45,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:45,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:45,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923753304] [2025-02-08 14:07:45,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923753304] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:45,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:45,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:45,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577717777] [2025-02-08 14:07:45,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:45,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:07:45,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:45,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:07:45,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:07:45,611 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 95 [2025-02-08 14:07:45,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 124 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2025-02-08 14:07:45,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:45,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 95 [2025-02-08 14:07:45,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:46,153 INFO L124 PetriNetUnfolderBase]: 4697/10063 cut-off events. [2025-02-08 14:07:46,153 INFO L125 PetriNetUnfolderBase]: For 1248/1520 co-relation queries the response was YES. [2025-02-08 14:07:46,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17783 conditions, 10063 events. 4697/10063 cut-off events. For 1248/1520 co-relation queries the response was YES. Maximal size of possible extension queue 601. Compared 93733 event pairs, 3689 based on Foata normal form. 140/8210 useless extension candidates. Maximal degree in co-relation 17687. Up to 6501 conditions per place. [2025-02-08 14:07:46,204 INFO L140 encePairwiseOnDemand]: 88/95 looper letters, 64 selfloop transitions, 12 changer transitions 0/121 dead transitions. [2025-02-08 14:07:46,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 121 transitions, 639 flow [2025-02-08 14:07:46,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:07:46,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:07:46,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2025-02-08 14:07:46,205 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7157894736842105 [2025-02-08 14:07:46,206 INFO L175 Difference]: Start difference. First operand has 104 places, 124 transitions, 500 flow. Second operand 3 states and 204 transitions. [2025-02-08 14:07:46,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 121 transitions, 639 flow [2025-02-08 14:07:46,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 121 transitions, 627 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:07:46,213 INFO L231 Difference]: Finished difference. Result has 105 places, 121 transitions, 499 flow [2025-02-08 14:07:46,214 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=499, PETRI_PLACES=105, PETRI_TRANSITIONS=121} [2025-02-08 14:07:46,214 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 14 predicate places. [2025-02-08 14:07:46,214 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 121 transitions, 499 flow [2025-02-08 14:07:46,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2025-02-08 14:07:46,214 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:46,214 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-08 14:07:46,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:07:46,215 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:46,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:46,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1227602422, now seen corresponding path program 2 times [2025-02-08 14:07:46,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:46,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338130270] [2025-02-08 14:07:46,215 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:46,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:46,226 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:07:46,231 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:07:46,235 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:07:46,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:46,279 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:07:46,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:46,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338130270] [2025-02-08 14:07:46,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338130270] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:46,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515203113] [2025-02-08 14:07:46,280 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:46,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:46,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:46,282 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:07:46,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 14:07:46,333 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:07:46,343 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:07:46,343 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:07:46,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:46,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:07:46,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:07:46,387 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:46,438 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:07:46,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515203113] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:46,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:46,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2025-02-08 14:07:46,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855209850] [2025-02-08 14:07:46,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:46,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:07:46,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:46,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:07:46,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:07:46,469 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:46,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 121 transitions, 499 flow. Second operand has 6 states, 6 states have (on average 46.666666666666664) internal successors, (280), 6 states have internal predecessors, (280), 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) [2025-02-08 14:07:46,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:46,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:46,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:46,998 INFO L124 PetriNetUnfolderBase]: 4697/10060 cut-off events. [2025-02-08 14:07:46,998 INFO L125 PetriNetUnfolderBase]: For 1260/1532 co-relation queries the response was YES. [2025-02-08 14:07:47,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17772 conditions, 10060 events. 4697/10060 cut-off events. For 1260/1532 co-relation queries the response was YES. Maximal size of possible extension queue 601. Compared 93724 event pairs, 3689 based on Foata normal form. 140/8209 useless extension candidates. Maximal degree in co-relation 17690. Up to 6474 conditions per place. [2025-02-08 14:07:47,037 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 41 selfloop transitions, 35 changer transitions 0/118 dead transitions. [2025-02-08 14:07:47,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 118 transitions, 621 flow [2025-02-08 14:07:47,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:47,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:47,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2025-02-08 14:07:47,038 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5921052631578947 [2025-02-08 14:07:47,039 INFO L175 Difference]: Start difference. First operand has 105 places, 121 transitions, 499 flow. Second operand 4 states and 225 transitions. [2025-02-08 14:07:47,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 118 transitions, 621 flow [2025-02-08 14:07:47,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 118 transitions, 567 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-08 14:07:47,042 INFO L231 Difference]: Finished difference. Result has 99 places, 118 transitions, 485 flow [2025-02-08 14:07:47,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=485, PETRI_PLACES=99, PETRI_TRANSITIONS=118} [2025-02-08 14:07:47,043 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 8 predicate places. [2025-02-08 14:07:47,043 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 118 transitions, 485 flow [2025-02-08 14:07:47,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.666666666666664) internal successors, (280), 6 states have internal predecessors, (280), 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) [2025-02-08 14:07:47,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:47,043 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:47,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 14:07:47,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:47,245 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:47,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:47,245 INFO L85 PathProgramCache]: Analyzing trace with hash -190473010, now seen corresponding path program 1 times [2025-02-08 14:07:47,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:47,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761580257] [2025-02-08 14:07:47,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:47,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:47,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 14:07:47,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 14:07:47,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:47,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:47,353 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:07:47,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:47,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761580257] [2025-02-08 14:07:47,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761580257] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:47,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379129884] [2025-02-08 14:07:47,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:47,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:47,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:47,359 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:07:47,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 14:07:47,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 14:07:47,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 14:07:47,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:47,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:47,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:07:47,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:07:47,483 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:47,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:07:47,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379129884] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:47,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:47,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-08 14:07:47,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801668921] [2025-02-08 14:07:47,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:47,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 14:07:47,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:47,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 14:07:47,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2025-02-08 14:07:47,538 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:47,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 118 transitions, 485 flow. Second operand has 11 states, 11 states have (on average 46.90909090909091) internal successors, (516), 11 states have internal predecessors, (516), 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) [2025-02-08 14:07:47,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:47,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:47,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:48,320 INFO L124 PetriNetUnfolderBase]: 4691/10054 cut-off events. [2025-02-08 14:07:48,320 INFO L125 PetriNetUnfolderBase]: For 1257/1529 co-relation queries the response was YES. [2025-02-08 14:07:48,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17756 conditions, 10054 events. 4691/10054 cut-off events. For 1257/1529 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 93557 event pairs, 3689 based on Foata normal form. 141/8203 useless extension candidates. Maximal degree in co-relation 17563. Up to 6481 conditions per place. [2025-02-08 14:07:48,381 INFO L140 encePairwiseOnDemand]: 85/95 looper letters, 38 selfloop transitions, 32 changer transitions 0/112 dead transitions. [2025-02-08 14:07:48,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 112 transitions, 591 flow [2025-02-08 14:07:48,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:07:48,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:07:48,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 378 transitions. [2025-02-08 14:07:48,383 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2025-02-08 14:07:48,383 INFO L175 Difference]: Start difference. First operand has 99 places, 118 transitions, 485 flow. Second operand 7 states and 378 transitions. [2025-02-08 14:07:48,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 112 transitions, 591 flow [2025-02-08 14:07:48,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 112 transitions, 525 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:07:48,387 INFO L231 Difference]: Finished difference. Result has 102 places, 112 transitions, 449 flow [2025-02-08 14:07:48,388 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=449, PETRI_PLACES=102, PETRI_TRANSITIONS=112} [2025-02-08 14:07:48,388 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 11 predicate places. [2025-02-08 14:07:48,388 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 112 transitions, 449 flow [2025-02-08 14:07:48,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 46.90909090909091) internal successors, (516), 11 states have internal predecessors, (516), 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) [2025-02-08 14:07:48,389 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:48,389 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:48,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 14:07:48,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-02-08 14:07:48,590 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:48,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:48,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1643898450, now seen corresponding path program 2 times [2025-02-08 14:07:48,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:48,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720798410] [2025-02-08 14:07:48,591 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:48,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:48,603 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-02-08 14:07:48,624 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 14:07:48,624 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:07:48,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:48,767 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 14:07:48,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:48,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720798410] [2025-02-08 14:07:48,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720798410] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:48,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699171569] [2025-02-08 14:07:48,768 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:48,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:48,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:48,770 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:07:48,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 14:07:48,830 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-02-08 14:07:48,857 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 14:07:48,857 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:07:48,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:48,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 14:07:48,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:48,950 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 14:07:48,951 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:49,040 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 14:07:49,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699171569] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:49,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:49,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-08 14:07:49,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558707977] [2025-02-08 14:07:49,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:49,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 14:07:49,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:49,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 14:07:49,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2025-02-08 14:07:49,106 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:49,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 112 transitions, 449 flow. Second operand has 18 states, 18 states have (on average 46.611111111111114) internal successors, (839), 18 states have internal predecessors, (839), 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) [2025-02-08 14:07:49,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:49,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:49,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:49,816 INFO L124 PetriNetUnfolderBase]: 4688/10054 cut-off events. [2025-02-08 14:07:49,817 INFO L125 PetriNetUnfolderBase]: For 1257/1529 co-relation queries the response was YES. [2025-02-08 14:07:49,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17759 conditions, 10054 events. 4688/10054 cut-off events. For 1257/1529 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 93528 event pairs, 3689 based on Foata normal form. 139/8201 useless extension candidates. Maximal degree in co-relation 17566. Up to 6474 conditions per place. [2025-02-08 14:07:49,864 INFO L140 encePairwiseOnDemand]: 85/95 looper letters, 37 selfloop transitions, 33 changer transitions 0/112 dead transitions. [2025-02-08 14:07:49,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 112 transitions, 594 flow [2025-02-08 14:07:49,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 14:07:49,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 14:07:49,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 570 transitions. [2025-02-08 14:07:49,866 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2025-02-08 14:07:49,866 INFO L175 Difference]: Start difference. First operand has 102 places, 112 transitions, 449 flow. Second operand 11 states and 570 transitions. [2025-02-08 14:07:49,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 112 transitions, 594 flow [2025-02-08 14:07:49,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 112 transitions, 570 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:07:49,869 INFO L231 Difference]: Finished difference. Result has 110 places, 112 transitions, 522 flow [2025-02-08 14:07:49,870 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=522, PETRI_PLACES=110, PETRI_TRANSITIONS=112} [2025-02-08 14:07:49,870 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 19 predicate places. [2025-02-08 14:07:49,870 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 112 transitions, 522 flow [2025-02-08 14:07:49,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 46.611111111111114) internal successors, (839), 18 states have internal predecessors, (839), 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) [2025-02-08 14:07:49,871 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:49,871 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:49,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 14:07:50,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:50,075 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:50,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:50,076 INFO L85 PathProgramCache]: Analyzing trace with hash 873119374, now seen corresponding path program 3 times [2025-02-08 14:07:50,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:50,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972121414] [2025-02-08 14:07:50,076 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:07:50,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:50,089 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 55 statements into 6 equivalence classes. [2025-02-08 14:07:50,176 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 55 of 55 statements. [2025-02-08 14:07:50,176 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-08 14:07:50,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:51,446 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-02-08 14:07:51,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:51,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972121414] [2025-02-08 14:07:51,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972121414] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:51,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995760414] [2025-02-08 14:07:51,446 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:07:51,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:51,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:51,449 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:07:51,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 14:07:51,519 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 55 statements into 6 equivalence classes. [2025-02-08 14:07:51,586 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 55 of 55 statements. [2025-02-08 14:07:51,586 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-08 14:07:51,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:51,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 44 conjuncts are in the unsatisfiable core [2025-02-08 14:07:51,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:51,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 14:07:51,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:07:51,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 14:07:51,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2025-02-08 14:07:51,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 14:07:51,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2025-02-08 14:07:51,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 14:07:51,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2025-02-08 14:07:51,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 14:07:51,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2025-02-08 14:07:51,973 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:07:51,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 14:07:51,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-08 14:07:52,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-08 14:07:52,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-08 14:07:52,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-08 14:07:52,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-08 14:07:52,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-02-08 14:07:52,084 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-02-08 14:07:52,084 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:09:12,204 INFO L349 Elim1Store]: treesize reduction 244, result has 20.0 percent of original size [2025-02-08 14:09:12,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 71 [2025-02-08 14:09:12,215 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:09:12,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 29 [2025-02-08 14:09:12,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2025-02-08 14:09:12,298 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 14 proven. 33 refuted. 1 times theorem prover too weak. 57 trivial. 0 not checked. [2025-02-08 14:09:12,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995760414] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:09:12,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:09:12,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 40 [2025-02-08 14:09:12,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636990720] [2025-02-08 14:09:12,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:09:12,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-02-08 14:09:12,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:12,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-02-08 14:09:12,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1397, Unknown=29, NotChecked=0, Total=1640 [2025-02-08 14:09:16,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2025-02-08 14:09:20,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]