./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-chromosome-trans.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-trans.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 f36f5593156fc25b34b4c706b0d898a2d66ee8bab5f6d91cd69ff9cf3c129193 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:07:39,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:07:39,782 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:07:39,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:07:39,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:07:39,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:07:39,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:07:39,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:07:39,801 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:07:39,801 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:07:39,801 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:07:39,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:07:39,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:07:39,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:07:39,802 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:07:39,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:07:39,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:07:39,802 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:07:39,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:07:39,802 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:07:39,802 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:07:39,802 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:07:39,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:07:39,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:07:39,802 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:07:39,803 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:07:39,803 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:07:39,803 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:07:39,803 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:07:39,803 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:07:39,803 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:07:39,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:07:39,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:07:39,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:07:39,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:39,803 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:07:39,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:07:39,804 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:07:39,804 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:07:39,804 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:07:39,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:07:39,804 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:07:39,804 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:07:39,804 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:07:39,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:07:39,804 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 -> f36f5593156fc25b34b4c706b0d898a2d66ee8bab5f6d91cd69ff9cf3c129193 [2025-02-08 14:07:40,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:07:40,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:07:40,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:07:40,047 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:07:40,047 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:07:40,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2025-02-08 14:07:41,233 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4baab4889/935cc5eeb6204aa4820dc3ee128253f4/FLAGfe11dad24 [2025-02-08 14:07:41,562 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:07:41,563 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2025-02-08 14:07:41,571 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4baab4889/935cc5eeb6204aa4820dc3ee128253f4/FLAGfe11dad24 [2025-02-08 14:07:41,832 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4baab4889/935cc5eeb6204aa4820dc3ee128253f4 [2025-02-08 14:07:41,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:07:41,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:07:41,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:41,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:07:41,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:07:41,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:41" (1/1) ... [2025-02-08 14:07:41,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6417b1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:41, skipping insertion in model container [2025-02-08 14:07:41,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:41" (1/1) ... [2025-02-08 14:07:41,877 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:07:42,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:42,037 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:07:42,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:42,079 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:07:42,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42 WrapperNode [2025-02-08 14:07:42,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:42,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:42,081 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:07:42,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:07:42,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42" (1/1) ... [2025-02-08 14:07:42,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42" (1/1) ... [2025-02-08 14:07:42,120 INFO L138 Inliner]: procedures = 25, calls = 32, calls flagged for inlining = 17, calls inlined = 25, statements flattened = 305 [2025-02-08 14:07:42,121 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:42,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:07:42,122 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:07:42,122 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:07:42,129 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42" (1/1) ... [2025-02-08 14:07:42,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42" (1/1) ... [2025-02-08 14:07:42,140 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42" (1/1) ... [2025-02-08 14:07:42,169 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 14:07:42,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42" (1/1) ... [2025-02-08 14:07:42,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42" (1/1) ... [2025-02-08 14:07:42,179 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42" (1/1) ... [2025-02-08 14:07:42,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42" (1/1) ... [2025-02-08 14:07:42,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42" (1/1) ... [2025-02-08 14:07:42,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42" (1/1) ... [2025-02-08 14:07:42,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:07:42,187 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:07:42,187 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:07:42,187 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:07:42,188 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42" (1/1) ... [2025-02-08 14:07:42,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:42,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:42,215 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 14:07:42,222 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 14:07:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:07:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:07:42,238 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:07:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:07:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:07:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 14:07:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 14:07:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:07:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:07:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:07:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:07:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 14:07:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:07:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:07:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:07:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:07:42,241 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 14:07:42,340 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:07:42,341 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:07:42,495 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56: havoc #t~post4#1; [2025-02-08 14:07:42,496 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-1: assume 1 + #t~post4#1 <= 2147483647; [2025-02-08 14:07:42,496 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-1: assume !(1 + #t~post4#1 <= 2147483647); [2025-02-08 14:07:42,496 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-2: ~i~0#1 := 1 + #t~post4#1; [2025-02-08 14:07:42,496 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-3: assume 1 + #t~post4#1 >= -2147483648; [2025-02-08 14:07:42,497 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-3: assume !(1 + #t~post4#1 >= -2147483648); [2025-02-08 14:07:42,497 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-4: #t~post4#1 := ~i~0#1; [2025-02-08 14:07:42,497 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54: havoc #t~ret3#1; [2025-02-08 14:07:42,497 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54-1: havoc #t~mem2#1; [2025-02-08 14:07:42,497 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54-2: havoc #t~mem1#1; [2025-02-08 14:07:42,498 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54-3: ~result_7~0 := #t~ret3#1; [2025-02-08 14:07:42,498 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 14:07:42,498 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54-5: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:07:42,498 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 14:07:42,498 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54-7: #t~ret3#1 := minus_#res#1; [2025-02-08 14:07:42,498 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 14:07:42,562 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-3: ~result_10~0 := #t~ret7#1; [2025-02-08 14:07:42,562 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 14:07:42,563 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-5: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:07:42,563 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 14:07:42,563 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-7: #t~ret7#1 := minus_#res#1; [2025-02-08 14:07:42,563 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 14:07:42,563 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70: havoc #t~post8#1; [2025-02-08 14:07:42,563 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-1: assume 1 + #t~post8#1 <= 2147483647; [2025-02-08 14:07:42,563 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-1: assume !(1 + #t~post8#1 <= 2147483647); [2025-02-08 14:07:42,563 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-2: ~i~1#1 := 1 + #t~post8#1; [2025-02-08 14:07:42,563 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-3: assume 1 + #t~post8#1 >= -2147483648; [2025-02-08 14:07:42,563 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-3: assume !(1 + #t~post8#1 >= -2147483648); [2025-02-08 14:07:42,563 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-4: #t~post8#1 := ~i~1#1; [2025-02-08 14:07:42,563 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68: havoc #t~ret7#1; [2025-02-08 14:07:42,563 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-1: havoc #t~mem6#1; [2025-02-08 14:07:42,564 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-2: havoc #t~mem5#1; [2025-02-08 14:07:42,622 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82: havoc #t~ret11#1; [2025-02-08 14:07:42,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82-1: havoc #t~mem10#1; [2025-02-08 14:07:42,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82-2: havoc #t~mem9#1; [2025-02-08 14:07:42,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82-3: ~result_13~0 := #t~ret11#1; [2025-02-08 14:07:42,623 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 14:07:42,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82-5: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:07:42,623 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 14:07:42,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82-7: #t~ret11#1 := minus_#res#1; [2025-02-08 14:07:42,623 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 14:07:42,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84: havoc #t~post12#1; [2025-02-08 14:07:42,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-1: assume 1 + #t~post12#1 <= 2147483647; [2025-02-08 14:07:42,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-1: assume !(1 + #t~post12#1 <= 2147483647); [2025-02-08 14:07:42,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-2: ~i~2#1 := 1 + #t~post12#1; [2025-02-08 14:07:42,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-3: assume 1 + #t~post12#1 >= -2147483648; [2025-02-08 14:07:42,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-3: assume !(1 + #t~post12#1 >= -2147483648); [2025-02-08 14:07:42,623 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-4: #t~post12#1 := ~i~2#1; [2025-02-08 14:07:42,758 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:07:42,758 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:07:42,992 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:07:42,992 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:07:42,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:42 BoogieIcfgContainer [2025-02-08 14:07:42,993 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:07:42,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:07:42,995 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:07:42,998 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:07:42,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:07:41" (1/3) ... [2025-02-08 14:07:42,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b7b2d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:42, skipping insertion in model container [2025-02-08 14:07:42,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:42" (2/3) ... [2025-02-08 14:07:42,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b7b2d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:42, skipping insertion in model container [2025-02-08 14:07:42,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:42" (3/3) ... [2025-02-08 14:07:43,000 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2025-02-08 14:07:43,011 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:07:43,012 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-chromosome-trans.wvr.c that has 4 procedures, 87 locations, 1 initial locations, 6 loop locations, and 30 error locations. [2025-02-08 14:07:43,012 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:07:43,066 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:07:43,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 95 transitions, 211 flow [2025-02-08 14:07:43,114 INFO L124 PetriNetUnfolderBase]: 9/92 cut-off events. [2025-02-08 14:07:43,116 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:07:43,119 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 10. Compared 342 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 14:07:43,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 95 transitions, 211 flow [2025-02-08 14:07:43,122 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 90 transitions, 195 flow [2025-02-08 14:07:43,128 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:07:43,135 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;@18cddfb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:07:43,135 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2025-02-08 14:07:43,138 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:07:43,138 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-08 14:07:43,138 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:07:43,138 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:43,139 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:07:43,139 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 14:07:43,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:43,143 INFO L85 PathProgramCache]: Analyzing trace with hash 832660, now seen corresponding path program 1 times [2025-02-08 14:07:43,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:43,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660160499] [2025-02-08 14:07:43,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:43,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:43,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:07:43,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:07:43,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:43,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:43,277 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 14:07:43,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:43,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660160499] [2025-02-08 14:07:43,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660160499] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:43,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:43,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:43,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623904320] [2025-02-08 14:07:43,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:43,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:43,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:43,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:43,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:43,316 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:43,319 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 14:07:43,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:43,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:43,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:44,090 INFO L124 PetriNetUnfolderBase]: 3669/7511 cut-off events. [2025-02-08 14:07:44,091 INFO L125 PetriNetUnfolderBase]: For 247/247 co-relation queries the response was YES. [2025-02-08 14:07:44,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12755 conditions, 7511 events. 3669/7511 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 65063 event pairs, 2736 based on Foata normal form. 3/5896 useless extension candidates. Maximal degree in co-relation 12121. Up to 5014 conditions per place. [2025-02-08 14:07:44,151 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 37 selfloop transitions, 8 changer transitions 0/87 dead transitions. [2025-02-08 14:07:44,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 87 transitions, 279 flow [2025-02-08 14:07:44,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:44,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:44,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 228 transitions. [2025-02-08 14:07:44,160 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2025-02-08 14:07:44,162 INFO L175 Difference]: Start difference. First operand has 91 places, 90 transitions, 195 flow. Second operand 4 states and 228 transitions. [2025-02-08 14:07:44,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 87 transitions, 279 flow [2025-02-08 14:07:44,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 87 transitions, 270 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 14:07:44,169 INFO L231 Difference]: Finished difference. Result has 86 places, 87 transitions, 196 flow [2025-02-08 14:07:44,171 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=86, PETRI_TRANSITIONS=87} [2025-02-08 14:07:44,173 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -5 predicate places. [2025-02-08 14:07:44,173 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 87 transitions, 196 flow [2025-02-08 14:07:44,174 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 14:07:44,174 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:44,174 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-08 14:07:44,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:07:44,174 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:44,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:44,175 INFO L85 PathProgramCache]: Analyzing trace with hash 25813202, now seen corresponding path program 1 times [2025-02-08 14:07:44,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:44,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428895831] [2025-02-08 14:07:44,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:44,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:44,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:07:44,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:07:44,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:44,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:44,251 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 14:07:44,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:44,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428895831] [2025-02-08 14:07:44,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428895831] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:44,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:44,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:44,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348238214] [2025-02-08 14:07:44,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:44,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:44,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:44,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:44,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:44,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:44,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 87 transitions, 196 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 14:07:44,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:44,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:44,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:44,847 INFO L124 PetriNetUnfolderBase]: 3672/7523 cut-off events. [2025-02-08 14:07:44,847 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2025-02-08 14:07:44,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12709 conditions, 7523 events. 3672/7523 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 65117 event pairs, 2736 based on Foata normal form. 3/5912 useless extension candidates. Maximal degree in co-relation 12641. Up to 5027 conditions per place. [2025-02-08 14:07:44,886 INFO L140 encePairwiseOnDemand]: 82/95 looper letters, 44 selfloop transitions, 10 changer transitions 0/96 dead transitions. [2025-02-08 14:07:44,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 96 transitions, 336 flow [2025-02-08 14:07:44,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:44,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:44,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 237 transitions. [2025-02-08 14:07:44,888 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6236842105263158 [2025-02-08 14:07:44,888 INFO L175 Difference]: Start difference. First operand has 86 places, 87 transitions, 196 flow. Second operand 4 states and 237 transitions. [2025-02-08 14:07:44,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 96 transitions, 336 flow [2025-02-08 14:07:44,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 96 transitions, 306 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:07:44,892 INFO L231 Difference]: Finished difference. Result has 89 places, 96 transitions, 262 flow [2025-02-08 14:07:44,892 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=89, PETRI_TRANSITIONS=96} [2025-02-08 14:07:44,893 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -2 predicate places. [2025-02-08 14:07:44,893 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 96 transitions, 262 flow [2025-02-08 14:07:44,893 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 14:07:44,893 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:44,893 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 14:07:44,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:07:44,893 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 14:07:44,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:44,894 INFO L85 PathProgramCache]: Analyzing trace with hash 202743560, now seen corresponding path program 1 times [2025-02-08 14:07:44,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:44,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773728152] [2025-02-08 14:07:44,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:44,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:44,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:07:44,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:07:44,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:44,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:44,965 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 14:07:44,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:44,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773728152] [2025-02-08 14:07:44,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773728152] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:44,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503178607] [2025-02-08 14:07:44,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:44,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:44,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:44,974 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 14:07:44,975 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 14:07:45,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:07:45,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:07:45,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:45,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:45,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:07:45,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:45,058 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 14:07:45,058 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:45,091 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 14:07:45,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503178607] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:45,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:45,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2025-02-08 14:07:45,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529911108] [2025-02-08 14:07:45,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:45,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:07:45,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:45,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:07:45,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:07:45,115 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:45,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 96 transitions, 262 flow. Second operand has 10 states, 10 states have (on average 46.0) internal successors, (460), 10 states have internal predecessors, (460), 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 14:07:45,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:45,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:45,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:45,673 INFO L124 PetriNetUnfolderBase]: 3681/7559 cut-off events. [2025-02-08 14:07:45,673 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2025-02-08 14:07:45,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12824 conditions, 7559 events. 3681/7559 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 65503 event pairs, 2736 based on Foata normal form. 0/5940 useless extension candidates. Maximal degree in co-relation 12655. Up to 5030 conditions per place. [2025-02-08 14:07:45,706 INFO L140 encePairwiseOnDemand]: 82/95 looper letters, 44 selfloop transitions, 37 changer transitions 0/123 dead transitions. [2025-02-08 14:07:45,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 123 transitions, 544 flow [2025-02-08 14:07:45,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:07:45,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:07:45,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 540 transitions. [2025-02-08 14:07:45,709 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2025-02-08 14:07:45,709 INFO L175 Difference]: Start difference. First operand has 89 places, 96 transitions, 262 flow. Second operand 10 states and 540 transitions. [2025-02-08 14:07:45,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 123 transitions, 544 flow [2025-02-08 14:07:45,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 123 transitions, 544 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:07:45,712 INFO L231 Difference]: Finished difference. Result has 101 places, 123 transitions, 506 flow [2025-02-08 14:07:45,712 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=10, PETRI_FLOW=506, PETRI_PLACES=101, PETRI_TRANSITIONS=123} [2025-02-08 14:07:45,713 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 10 predicate places. [2025-02-08 14:07:45,713 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 123 transitions, 506 flow [2025-02-08 14:07:45,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 46.0) internal successors, (460), 10 states have internal predecessors, (460), 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 14:07:45,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:45,713 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:45,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 14:07:45,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:45,919 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:45,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:45,919 INFO L85 PathProgramCache]: Analyzing trace with hash -63555841, now seen corresponding path program 1 times [2025-02-08 14:07:45,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:45,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369019255] [2025-02-08 14:07:45,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:45,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:45,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:07:45,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:07:45,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:45,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:46,049 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 14:07:46,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:46,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369019255] [2025-02-08 14:07:46,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369019255] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:46,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:46,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:46,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266151322] [2025-02-08 14:07:46,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:46,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:07:46,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:46,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:07:46,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:07:46,051 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 95 [2025-02-08 14:07:46,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 123 transitions, 506 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 14:07:46,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:46,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 95 [2025-02-08 14:07:46,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:46,652 INFO L124 PetriNetUnfolderBase]: 3678/7556 cut-off events. [2025-02-08 14:07:46,652 INFO L125 PetriNetUnfolderBase]: For 145/145 co-relation queries the response was YES. [2025-02-08 14:07:46,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12876 conditions, 7556 events. 3678/7556 cut-off events. For 145/145 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 65107 event pairs, 2736 based on Foata normal form. 3/5946 useless extension candidates. Maximal degree in co-relation 12781. Up to 5044 conditions per place. [2025-02-08 14:07:46,690 INFO L140 encePairwiseOnDemand]: 88/95 looper letters, 63 selfloop transitions, 12 changer transitions 0/120 dead transitions. [2025-02-08 14:07:46,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 120 transitions, 640 flow [2025-02-08 14:07:46,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:07:46,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:07:46,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2025-02-08 14:07:46,692 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7157894736842105 [2025-02-08 14:07:46,692 INFO L175 Difference]: Start difference. First operand has 101 places, 123 transitions, 506 flow. Second operand 3 states and 204 transitions. [2025-02-08 14:07:46,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 120 transitions, 640 flow [2025-02-08 14:07:46,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 120 transitions, 536 flow, removed 25 selfloop flow, removed 5 redundant places. [2025-02-08 14:07:46,696 INFO L231 Difference]: Finished difference. Result has 98 places, 120 transitions, 410 flow [2025-02-08 14:07:46,697 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=410, PETRI_PLACES=98, PETRI_TRANSITIONS=120} [2025-02-08 14:07:46,697 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 7 predicate places. [2025-02-08 14:07:46,697 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 120 transitions, 410 flow [2025-02-08 14:07:46,697 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 14:07:46,698 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:46,698 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-08 14:07:46,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:07:46,698 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:46,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:46,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1304475310, now seen corresponding path program 2 times [2025-02-08 14:07:46,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:46,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241703662] [2025-02-08 14:07:46,699 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:46,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:46,710 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:07:46,723 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:07:46,723 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:07:46,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:46,791 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 14:07:46,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:46,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241703662] [2025-02-08 14:07:46,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241703662] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:46,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046847725] [2025-02-08 14:07:46,792 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:46,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:46,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:46,794 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 14:07:46,797 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 14:07:46,849 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:07:46,857 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:07:46,857 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:07:46,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:46,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:07:46,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:46,886 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 14:07:46,887 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:46,921 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 14:07:46,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046847725] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:46,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:46,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2025-02-08 14:07:46,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819264911] [2025-02-08 14:07:46,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:46,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:07:46,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:46,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:07:46,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:07:46,943 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:46,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 120 transitions, 410 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 14:07:46,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:46,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:46,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:47,517 INFO L124 PetriNetUnfolderBase]: 3678/7553 cut-off events. [2025-02-08 14:07:47,517 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2025-02-08 14:07:47,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12820 conditions, 7553 events. 3678/7553 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 65065 event pairs, 2736 based on Foata normal form. 3/5943 useless extension candidates. Maximal degree in co-relation 12753. Up to 5017 conditions per place. [2025-02-08 14:07:47,540 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 40 selfloop transitions, 35 changer transitions 0/117 dead transitions. [2025-02-08 14:07:47,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 117 transitions, 530 flow [2025-02-08 14:07:47,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:47,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:47,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2025-02-08 14:07:47,541 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5921052631578947 [2025-02-08 14:07:47,541 INFO L175 Difference]: Start difference. First operand has 98 places, 120 transitions, 410 flow. Second operand 4 states and 225 transitions. [2025-02-08 14:07:47,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 117 transitions, 530 flow [2025-02-08 14:07:47,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 117 transitions, 476 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-08 14:07:47,544 INFO L231 Difference]: Finished difference. Result has 92 places, 117 transitions, 396 flow [2025-02-08 14:07:47,544 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=396, PETRI_PLACES=92, PETRI_TRANSITIONS=117} [2025-02-08 14:07:47,544 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 1 predicate places. [2025-02-08 14:07:47,544 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 117 transitions, 396 flow [2025-02-08 14:07:47,544 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 14:07:47,544 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:47,545 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:47,551 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 14:07:47,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:47,745 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:47,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:47,746 INFO L85 PathProgramCache]: Analyzing trace with hash 673568388, now seen corresponding path program 1 times [2025-02-08 14:07:47,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:47,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716566533] [2025-02-08 14:07:47,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:47,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:47,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 14:07:47,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 14:07:47,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:47,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:47,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 14:07:47,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:47,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716566533] [2025-02-08 14:07:47,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716566533] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:47,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:47,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:47,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054239445] [2025-02-08 14:07:47,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:47,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:47,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:47,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:47,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:47,909 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:47,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 117 transitions, 396 flow. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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 14:07:47,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:47,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:47,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:48,626 INFO L124 PetriNetUnfolderBase]: 7636/13998 cut-off events. [2025-02-08 14:07:48,627 INFO L125 PetriNetUnfolderBase]: For 103/103 co-relation queries the response was YES. [2025-02-08 14:07:48,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24884 conditions, 13998 events. 7636/13998 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 830. Compared 120851 event pairs, 2475 based on Foata normal form. 364/11654 useless extension candidates. Maximal degree in co-relation 24701. Up to 4781 conditions per place. [2025-02-08 14:07:48,666 INFO L140 encePairwiseOnDemand]: 88/95 looper letters, 122 selfloop transitions, 4 changer transitions 0/162 dead transitions. [2025-02-08 14:07:48,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 162 transitions, 744 flow [2025-02-08 14:07:48,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:48,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:48,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 276 transitions. [2025-02-08 14:07:48,668 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7263157894736842 [2025-02-08 14:07:48,668 INFO L175 Difference]: Start difference. First operand has 92 places, 117 transitions, 396 flow. Second operand 4 states and 276 transitions. [2025-02-08 14:07:48,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 162 transitions, 744 flow [2025-02-08 14:07:48,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 162 transitions, 674 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:07:48,670 INFO L231 Difference]: Finished difference. Result has 94 places, 118 transitions, 352 flow [2025-02-08 14:07:48,670 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=352, PETRI_PLACES=94, PETRI_TRANSITIONS=118} [2025-02-08 14:07:48,671 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 3 predicate places. [2025-02-08 14:07:48,671 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 118 transitions, 352 flow [2025-02-08 14:07:48,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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 14:07:48,671 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:48,671 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 14:07:48,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:07:48,671 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:48,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:48,671 INFO L85 PathProgramCache]: Analyzing trace with hash -594215642, now seen corresponding path program 1 times [2025-02-08 14:07:48,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:48,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768697639] [2025-02-08 14:07:48,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:48,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:48,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 14:07:48,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 14:07:48,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:48,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:48,818 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 14:07:48,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:48,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768697639] [2025-02-08 14:07:48,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768697639] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:48,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252216258] [2025-02-08 14:07:48,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:48,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:48,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:48,822 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 14:07:48,823 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 14:07:48,900 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 14:07:48,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 14:07:48,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:48,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:48,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:07:48,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:48,993 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 14:07:48,997 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:49,039 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 14:07:49,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252216258] 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 [5, 4, 4] total 11 [2025-02-08 14:07:49,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659555435] [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 11 states [2025-02-08 14:07:49,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:49,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 14:07:49,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2025-02-08 14:07:49,076 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:49,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 118 transitions, 352 flow. Second operand has 11 states, 11 states have (on average 47.45454545454545) internal successors, (522), 11 states have internal predecessors, (522), 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 14:07:49,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:49,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:49,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:49,807 INFO L124 PetriNetUnfolderBase]: 4691/10054 cut-off events. [2025-02-08 14:07:49,807 INFO L125 PetriNetUnfolderBase]: For 1191/1463 co-relation queries the response was YES. [2025-02-08 14:07:49,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17695 conditions, 10054 events. 4691/10054 cut-off events. For 1191/1463 co-relation queries the response was YES. Maximal size of possible extension queue 601. Compared 93619 event pairs, 3689 based on Foata normal form. 137/8195 useless extension candidates. Maximal degree in co-relation 17563. Up to 6481 conditions per place. [2025-02-08 14:07:49,841 INFO L140 encePairwiseOnDemand]: 85/95 looper letters, 38 selfloop transitions, 32 changer transitions 0/112 dead transitions. [2025-02-08 14:07:49,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 112 transitions, 468 flow [2025-02-08 14:07:49,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:07:49,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:07:49,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 378 transitions. [2025-02-08 14:07:49,843 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2025-02-08 14:07:49,843 INFO L175 Difference]: Start difference. First operand has 94 places, 118 transitions, 352 flow. Second operand 7 states and 378 transitions. [2025-02-08 14:07:49,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 112 transitions, 468 flow [2025-02-08 14:07:49,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 112 transitions, 468 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:07:49,846 INFO L231 Difference]: Finished difference. Result has 100 places, 112 transitions, 392 flow [2025-02-08 14:07:49,846 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=94, 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=392, PETRI_PLACES=100, PETRI_TRANSITIONS=112} [2025-02-08 14:07:49,847 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 9 predicate places. [2025-02-08 14:07:49,847 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 112 transitions, 392 flow [2025-02-08 14:07:49,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 47.45454545454545) internal successors, (522), 11 states have internal predecessors, (522), 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 14:07:49,847 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:49,847 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 14:07:49,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 14:07:50,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:50,048 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:50,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:50,049 INFO L85 PathProgramCache]: Analyzing trace with hash 818297158, now seen corresponding path program 2 times [2025-02-08 14:07:50,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:50,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833935451] [2025-02-08 14:07:50,049 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:50,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:50,060 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-02-08 14:07:50,080 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 14:07:50,081 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:07:50,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:50,231 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 14:07:50,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:50,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833935451] [2025-02-08 14:07:50,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833935451] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:50,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961625005] [2025-02-08 14:07:50,231 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:50,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:50,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:50,236 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 14:07:50,239 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 14:07:50,290 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-02-08 14:07:50,317 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 14:07:50,317 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:07:50,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:50,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 14:07:50,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:50,400 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 14:07:50,400 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:50,448 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 14:07:50,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961625005] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:50,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:50,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-08 14:07:50,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379067377] [2025-02-08 14:07:50,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:50,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 14:07:50,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:50,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 14:07:50,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2025-02-08 14:07:50,517 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2025-02-08 14:07:50,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 112 transitions, 392 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 14:07:50,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:50,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2025-02-08 14:07:50,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:51,467 INFO L124 PetriNetUnfolderBase]: 4688/10054 cut-off events. [2025-02-08 14:07:51,467 INFO L125 PetriNetUnfolderBase]: For 1221/1493 co-relation queries the response was YES. [2025-02-08 14:07:51,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17729 conditions, 10054 events. 4688/10054 cut-off events. For 1221/1493 co-relation queries the response was YES. Maximal size of possible extension queue 601. Compared 93501 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 14:07:51,510 INFO L140 encePairwiseOnDemand]: 85/95 looper letters, 37 selfloop transitions, 33 changer transitions 0/112 dead transitions. [2025-02-08 14:07:51,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 112 transitions, 534 flow [2025-02-08 14:07:51,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 14:07:51,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 14:07:51,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 570 transitions. [2025-02-08 14:07:51,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2025-02-08 14:07:51,514 INFO L175 Difference]: Start difference. First operand has 100 places, 112 transitions, 392 flow. Second operand 11 states and 570 transitions. [2025-02-08 14:07:51,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 112 transitions, 534 flow [2025-02-08 14:07:51,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 112 transitions, 510 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:07:51,518 INFO L231 Difference]: Finished difference. Result has 108 places, 112 transitions, 462 flow [2025-02-08 14:07:51,518 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=96, 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=462, PETRI_PLACES=108, PETRI_TRANSITIONS=112} [2025-02-08 14:07:51,518 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 17 predicate places. [2025-02-08 14:07:51,518 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 112 transitions, 462 flow [2025-02-08 14:07:51,519 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 14:07:51,519 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:51,519 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 14:07:51,525 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 14:07:51,719 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,SelfDestructingSolverStorable7 [2025-02-08 14:07:51,720 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:07:51,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:51,720 INFO L85 PathProgramCache]: Analyzing trace with hash 403303782, now seen corresponding path program 3 times [2025-02-08 14:07:51,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:51,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535514286] [2025-02-08 14:07:51,720 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:07:51,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:51,743 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 55 statements into 6 equivalence classes. [2025-02-08 14:07:51,885 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 55 of 55 statements. [2025-02-08 14:07:51,885 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-08 14:07:51,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:53,905 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-02-08 14:07:53,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:53,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535514286] [2025-02-08 14:07:53,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535514286] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:53,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917136363] [2025-02-08 14:07:53,905 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:07:53,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:53,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:53,909 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 14:07:53,909 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 14:07:53,973 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 55 statements into 6 equivalence classes. [2025-02-08 14:07:54,051 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 55 of 55 statements. [2025-02-08 14:07:54,052 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-08 14:07:54,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:54,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-02-08 14:07:54,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:54,074 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 14:07:54,103 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 14:07:54,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 14:07:54,171 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 14:07:54,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 14:07:54,237 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 14:07:54,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 14:07:54,306 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 14:07:54,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 14:07:54,378 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 14:07:54,425 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:07:54,425 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 14:07:54,433 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 14:07:54,451 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 14:07:54,467 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 14:07:54,479 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 14:07:54,496 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 14:07:54,513 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 14:07:54,530 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 14:07:54,530 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:54,587 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_219 (Array Int Int))) (< (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_219) c_~o_2~0.base) c_~o_2~0.offset) 9223372039002259456)) is different from false [2025-02-08 14:09:12,604 INFO L349 Elim1Store]: treesize reduction 244, result has 20.0 percent of original size [2025-02-08 14:09:12,606 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 14:09:12,623 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:09:12,624 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 14:09:12,634 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 14:09:12,703 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 57 trivial. 13 not checked. [2025-02-08 14:09:12,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917136363] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:09:12,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:09:12,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 15] total 45 [2025-02-08 14:09:12,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031985931] [2025-02-08 14:09:12,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:09:12,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-02-08 14:09:12,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:12,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-02-08 14:09:12,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=1697, Unknown=22, NotChecked=86, Total=2070 [2025-02-08 14:09:12,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 95 [2025-02-08 14:09:12,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 112 transitions, 462 flow. Second operand has 46 states, 46 states have (on average 34.97826086956522) internal successors, (1609), 46 states have internal predecessors, (1609), 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 14:09:12,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:12,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 95 [2025-02-08 14:09:12,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:15,798 INFO L124 PetriNetUnfolderBase]: 10850/16316 cut-off events. [2025-02-08 14:09:15,798 INFO L125 PetriNetUnfolderBase]: For 1227/1227 co-relation queries the response was YES. [2025-02-08 14:09:15,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33979 conditions, 16316 events. 10850/16316 cut-off events. For 1227/1227 co-relation queries the response was YES. Maximal size of possible extension queue 897. Compared 113470 event pairs, 228 based on Foata normal form. 0/14206 useless extension candidates. Maximal degree in co-relation 33766. Up to 12961 conditions per place. [2025-02-08 14:09:15,871 INFO L140 encePairwiseOnDemand]: 82/95 looper letters, 96 selfloop transitions, 39 changer transitions 0/165 dead transitions. [2025-02-08 14:09:15,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 165 transitions, 844 flow [2025-02-08 14:09:15,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-08 14:09:15,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-02-08 14:09:15,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 956 transitions. [2025-02-08 14:09:15,874 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4025263157894737 [2025-02-08 14:09:15,875 INFO L175 Difference]: Start difference. First operand has 108 places, 112 transitions, 462 flow. Second operand 25 states and 956 transitions. [2025-02-08 14:09:15,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 165 transitions, 844 flow [2025-02-08 14:09:15,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 165 transitions, 796 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-02-08 14:09:15,911 INFO L231 Difference]: Finished difference. Result has 123 places, 111 transitions, 490 flow [2025-02-08 14:09:15,911 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=490, PETRI_PLACES=123, PETRI_TRANSITIONS=111} [2025-02-08 14:09:15,911 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 32 predicate places. [2025-02-08 14:09:15,912 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 111 transitions, 490 flow [2025-02-08 14:09:15,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 34.97826086956522) internal successors, (1609), 46 states have internal predecessors, (1609), 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 14:09:15,912 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:15,912 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:15,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 14:09:16,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:16,113 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2025-02-08 14:09:16,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:16,114 INFO L85 PathProgramCache]: Analyzing trace with hash -382514584, now seen corresponding path program 1 times [2025-02-08 14:09:16,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:16,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979419690] [2025-02-08 14:09:16,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:16,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:16,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-02-08 14:09:16,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-02-08 14:09:16,165 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:16,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 4 proven. 42 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2025-02-08 14:09:17,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:17,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979419690] [2025-02-08 14:09:17,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979419690] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:09:17,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563334250] [2025-02-08 14:09:17,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:17,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:17,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:09:17,267 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 14:09:17,269 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 14:09:17,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-02-08 14:09:17,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-02-08 14:09:17,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:17,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:17,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 41 conjuncts are in the unsatisfiable core [2025-02-08 14:09:17,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:09:17,470 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 14:09:17,553 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 14:09:17,701 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2025-02-08 14:09:17,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 13 [2025-02-08 14:09:17,838 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2025-02-08 14:09:17,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 13 [2025-02-08 14:09:17,905 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2025-02-08 14:09:17,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 13 [2025-02-08 14:09:17,982 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2025-02-08 14:09:17,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 13 [2025-02-08 14:09:18,014 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:09:18,014 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 14:09:18,043 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 18 treesize of output 13 [2025-02-08 14:09:18,058 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 18 treesize of output 13 [2025-02-08 14:09:18,074 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 18 treesize of output 13 [2025-02-08 14:09:18,090 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 18 treesize of output 13 [2025-02-08 14:09:18,102 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 18 treesize of output 13 [2025-02-08 14:09:18,154 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 17 treesize of output 9 [2025-02-08 14:09:18,178 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 14:09:18,178 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:09:18,240 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_304 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_304) c_~o_2~0.base) c_~o_2~0.offset) 4294967296))) is different from false