./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-prod-cons-eq.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/popl20-prod-cons-eq.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 3dfcb4860b3021904fb2e25e7c2a428c9bcb0d82c2290cad723458395a0647ea --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:13:13,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:13:13,104 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:13:13,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:13:13,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:13:13,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:13:13,123 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:13:13,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:13:13,124 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:13:13,124 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:13:13,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:13:13,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:13:13,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:13:13,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:13:13,124 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:13:13,125 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:13:13,125 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:13:13,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:13:13,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:13:13,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:13:13,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:13:13,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:13:13,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:13:13,126 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:13:13,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:13:13,126 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:13:13,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:13:13,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:13:13,126 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:13:13,126 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:13:13,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:13:13,126 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 -> 3dfcb4860b3021904fb2e25e7c2a428c9bcb0d82c2290cad723458395a0647ea [2025-02-08 14:13:13,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:13:13,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:13:13,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:13:13,352 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:13:13,352 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:13:13,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2025-02-08 14:13:14,524 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c76fe2fcf/379e5372721f4b0c97a7ec0c1347dfbb/FLAGc44130090 [2025-02-08 14:13:14,787 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:13:14,788 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2025-02-08 14:13:14,795 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c76fe2fcf/379e5372721f4b0c97a7ec0c1347dfbb/FLAGc44130090 [2025-02-08 14:13:15,096 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c76fe2fcf/379e5372721f4b0c97a7ec0c1347dfbb [2025-02-08 14:13:15,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:13:15,099 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:13:15,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:13:15,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:13:15,103 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:13:15,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fe305e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15, skipping insertion in model container [2025-02-08 14:13:15,104 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:13:15,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:13:15,276 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:13:15,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:13:15,310 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:13:15,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15 WrapperNode [2025-02-08 14:13:15,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:13:15,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:13:15,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:13:15,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:13:15,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,362 INFO L138 Inliner]: procedures = 27, calls = 68, calls flagged for inlining = 29, calls inlined = 35, statements flattened = 408 [2025-02-08 14:13:15,362 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:13:15,363 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:13:15,363 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:13:15,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:13:15,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,383 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,399 INFO L175 MemorySlicer]: Split 24 memory accesses to 4 slices as follows [16, 2, 3, 3]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0]. The 6 writes are split as follows [4, 0, 1, 1]. [2025-02-08 14:13:15,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,400 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,407 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:13:15,413 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:13:15,413 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:13:15,413 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:13:15,414 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15" (1/1) ... [2025-02-08 14:13:15,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:13:15,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:15,437 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 14:13:15,447 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 14:13:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:13:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 14:13:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 14:13:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 14:13:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 14:13:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:13:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:13:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 14:13:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 14:13:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:13:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:13:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 14:13:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 14:13:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 14:13:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 14:13:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 14:13:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 14:13:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:13:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:13:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:13:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:13:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 14:13:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 14:13:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:13:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:13:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 14:13:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 14:13:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 14:13:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 14:13:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 14:13:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:13:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:13:15,463 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 14:13:15,549 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:13:15,550 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:13:15,940 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L128-1: havoc main_#t~post37#1; [2025-02-08 14:13:15,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L128-2: assume 1 + main_#t~post37#1 <= 2147483647; [2025-02-08 14:13:15,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L128-2: assume !(1 + main_#t~post37#1 <= 2147483647); [2025-02-08 14:13:15,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L128-3: main_~i~0#1 := 1 + main_#t~post37#1; [2025-02-08 14:13:15,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L128-4: assume 1 + main_#t~post37#1 >= -2147483648; [2025-02-08 14:13:15,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L128-4: assume !(1 + main_#t~post37#1 >= -2147483648); [2025-02-08 14:13:15,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L128-5: main_#t~post37#1 := main_~i~0#1; [2025-02-08 14:13:15,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L129: havoc main_#t~ret36#1.base, main_#t~ret36#1.offset; [2025-02-08 14:13:15,942 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L129-1: SUMMARY for call write~$Pointer$#2(main_#t~ret36#1.base, main_#t~ret36#1.offset, ~consume~0.base, ~consume~0.offset + 4 * main_~i~0#1, 4); srcloc: null [2025-02-08 14:13:15,942 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L129-2: havoc create_fresh_int_array_#in~size#1;assume { :end_inline_create_fresh_int_array } true; [2025-02-08 14:13:15,942 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L129-3: havoc create_fresh_int_array_#t~malloc44#1.base, create_fresh_int_array_#t~malloc44#1.offset, create_fresh_int_array_#t~nondet45#1, create_fresh_int_array_#t~post46#1, create_fresh_int_array_~i~1#1, create_fresh_int_array_~size#1, create_fresh_int_array_~arr~0#1.base, create_fresh_int_array_~arr~0#1.offset; [2025-02-08 14:13:15,942 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L129-4: main_#t~ret36#1.base, main_#t~ret36#1.offset := create_fresh_int_array_#res#1.base, create_fresh_int_array_#res#1.offset; [2025-02-08 14:13:15,943 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:13:15,943 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:13:16,380 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:13:16,380 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:13:16,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:13:16 BoogieIcfgContainer [2025-02-08 14:13:16,381 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:13:16,382 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:13:16,382 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:13:16,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:13:16,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:13:15" (1/3) ... [2025-02-08 14:13:16,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50af36ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:13:16, skipping insertion in model container [2025-02-08 14:13:16,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:13:15" (2/3) ... [2025-02-08 14:13:16,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50af36ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:13:16, skipping insertion in model container [2025-02-08 14:13:16,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:13:16" (3/3) ... [2025-02-08 14:13:16,387 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2025-02-08 14:13:16,398 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:13:16,399 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-prod-cons-eq.wvr.c that has 4 procedures, 66 locations, 1 initial locations, 9 loop locations, and 24 error locations. [2025-02-08 14:13:16,399 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:13:16,460 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:13:16,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 73 transitions, 167 flow [2025-02-08 14:13:16,508 INFO L124 PetriNetUnfolderBase]: 8/70 cut-off events. [2025-02-08 14:13:16,509 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:13:16,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 70 events. 8/70 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 216 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2025-02-08 14:13:16,512 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 73 transitions, 167 flow [2025-02-08 14:13:16,514 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 67 transitions, 149 flow [2025-02-08 14:13:16,519 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:13:16,526 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;@76d50875, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:13:16,526 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2025-02-08 14:13:16,530 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:13:16,530 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-08 14:13:16,530 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:13:16,530 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:16,530 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:13:16,531 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:16,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:16,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1155776, now seen corresponding path program 1 times [2025-02-08 14:13:16,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:16,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438354109] [2025-02-08 14:13:16,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:16,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:16,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:13:16,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:13:16,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:16,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:16,702 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 14:13:16,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:16,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438354109] [2025-02-08 14:13:16,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438354109] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:13:16,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:13:16,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:13:16,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503117290] [2025-02-08 14:13:16,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:13:16,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:13:16,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:16,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:13:16,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:13:16,753 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 73 [2025-02-08 14:13:16,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 14:13:16,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:16,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 73 [2025-02-08 14:13:16,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:17,157 INFO L124 PetriNetUnfolderBase]: 1304/1866 cut-off events. [2025-02-08 14:13:17,157 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2025-02-08 14:13:17,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3787 conditions, 1866 events. 1304/1866 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 8898 event pairs, 738 based on Foata normal form. 4/1127 useless extension candidates. Maximal degree in co-relation 3540. Up to 1758 conditions per place. [2025-02-08 14:13:17,169 INFO L140 encePairwiseOnDemand]: 46/73 looper letters, 46 selfloop transitions, 13 changer transitions 1/72 dead transitions. [2025-02-08 14:13:17,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 72 transitions, 279 flow [2025-02-08 14:13:17,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:13:17,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:13:17,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2025-02-08 14:13:17,178 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4589041095890411 [2025-02-08 14:13:17,179 INFO L175 Difference]: Start difference. First operand has 69 places, 67 transitions, 149 flow. Second operand 4 states and 134 transitions. [2025-02-08 14:13:17,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 72 transitions, 279 flow [2025-02-08 14:13:17,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 72 transitions, 270 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 14:13:17,186 INFO L231 Difference]: Finished difference. Result has 64 places, 71 transitions, 237 flow [2025-02-08 14:13:17,187 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=237, PETRI_PLACES=64, PETRI_TRANSITIONS=71} [2025-02-08 14:13:17,190 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -5 predicate places. [2025-02-08 14:13:17,190 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 71 transitions, 237 flow [2025-02-08 14:13:17,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 14:13:17,190 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:17,190 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-08 14:13:17,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:13:17,191 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:17,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:17,191 INFO L85 PathProgramCache]: Analyzing trace with hash 73073915, now seen corresponding path program 1 times [2025-02-08 14:13:17,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:17,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741418230] [2025-02-08 14:13:17,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:17,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:17,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:13:17,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:13:17,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:17,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:17,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:17,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:17,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741418230] [2025-02-08 14:13:17,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741418230] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:17,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636325698] [2025-02-08 14:13:17,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:17,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:17,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:17,353 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 14:13:17,355 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 14:13:17,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:13:17,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:13:17,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:17,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:17,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:13:17,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:17,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:17,485 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:13:17,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636325698] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:13:17,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:13:17,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-08 14:13:17,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596865892] [2025-02-08 14:13:17,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:13:17,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:13:17,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:17,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:13:17,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:13:17,511 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 73 [2025-02-08 14:13:17,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 71 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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 14:13:17,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:17,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 73 [2025-02-08 14:13:17,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:17,906 INFO L124 PetriNetUnfolderBase]: 1300/1855 cut-off events. [2025-02-08 14:13:17,907 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2025-02-08 14:13:17,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3775 conditions, 1855 events. 1300/1855 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 8828 event pairs, 736 based on Foata normal form. 4/1124 useless extension candidates. Maximal degree in co-relation 3683. Up to 1731 conditions per place. [2025-02-08 14:13:17,916 INFO L140 encePairwiseOnDemand]: 56/73 looper letters, 33 selfloop transitions, 22 changer transitions 0/67 dead transitions. [2025-02-08 14:13:17,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 67 transitions, 331 flow [2025-02-08 14:13:17,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:13:17,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:13:17,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 149 transitions. [2025-02-08 14:13:17,917 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3401826484018265 [2025-02-08 14:13:17,917 INFO L175 Difference]: Start difference. First operand has 64 places, 71 transitions, 237 flow. Second operand 6 states and 149 transitions. [2025-02-08 14:13:17,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 67 transitions, 331 flow [2025-02-08 14:13:17,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 331 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:13:17,920 INFO L231 Difference]: Finished difference. Result has 64 places, 67 transitions, 265 flow [2025-02-08 14:13:17,920 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=265, PETRI_PLACES=64, PETRI_TRANSITIONS=67} [2025-02-08 14:13:17,920 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -5 predicate places. [2025-02-08 14:13:17,920 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 67 transitions, 265 flow [2025-02-08 14:13:17,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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 14:13:17,921 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:17,921 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:13:17,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 14:13:18,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:18,126 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:18,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:18,126 INFO L85 PathProgramCache]: Analyzing trace with hash 74442655, now seen corresponding path program 1 times [2025-02-08 14:13:18,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:18,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302332557] [2025-02-08 14:13:18,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:18,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:18,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:13:18,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:13:18,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:18,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:18,215 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 14:13:18,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:18,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302332557] [2025-02-08 14:13:18,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302332557] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:13:18,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:13:18,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:13:18,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005048869] [2025-02-08 14:13:18,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:13:18,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:13:18,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:18,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:13:18,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:13:18,221 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 73 [2025-02-08 14:13:18,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 67 transitions, 265 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:13:18,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:18,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 73 [2025-02-08 14:13:18,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:18,472 INFO L124 PetriNetUnfolderBase]: 1301/1859 cut-off events. [2025-02-08 14:13:18,472 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2025-02-08 14:13:18,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3803 conditions, 1859 events. 1301/1859 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 8996 event pairs, 736 based on Foata normal form. 1/1128 useless extension candidates. Maximal degree in co-relation 3695. Up to 1755 conditions per place. [2025-02-08 14:13:18,481 INFO L140 encePairwiseOnDemand]: 67/73 looper letters, 51 selfloop transitions, 5 changer transitions 0/70 dead transitions. [2025-02-08 14:13:18,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 70 transitions, 383 flow [2025-02-08 14:13:18,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:13:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:13:18,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2025-02-08 14:13:18,483 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4486301369863014 [2025-02-08 14:13:18,483 INFO L175 Difference]: Start difference. First operand has 64 places, 67 transitions, 265 flow. Second operand 4 states and 131 transitions. [2025-02-08 14:13:18,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 70 transitions, 383 flow [2025-02-08 14:13:18,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 70 transitions, 334 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-02-08 14:13:18,485 INFO L231 Difference]: Finished difference. Result has 64 places, 70 transitions, 248 flow [2025-02-08 14:13:18,485 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=248, PETRI_PLACES=64, PETRI_TRANSITIONS=70} [2025-02-08 14:13:18,486 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -5 predicate places. [2025-02-08 14:13:18,486 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 70 transitions, 248 flow [2025-02-08 14:13:18,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:13:18,486 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:18,486 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 14:13:18,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:13:18,487 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:18,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:18,487 INFO L85 PathProgramCache]: Analyzing trace with hash -2029674835, now seen corresponding path program 1 times [2025-02-08 14:13:18,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:18,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103793804] [2025-02-08 14:13:18,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:18,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:18,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:13:18,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:13:18,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:18,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:18,610 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 14:13:18,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:18,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103793804] [2025-02-08 14:13:18,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103793804] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:18,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42514278] [2025-02-08 14:13:18,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:18,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:18,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:18,613 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 14:13:18,619 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 14:13:18,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:13:18,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:13:18,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:18,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:18,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:13:18,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:18,721 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 14:13:18,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:18,762 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 14:13:18,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42514278] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:18,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:18,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-08 14:13:18,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217376439] [2025-02-08 14:13:18,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:18,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 14:13:18,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:18,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 14:13:18,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 14:13:18,881 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 73 [2025-02-08 14:13:18,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 70 transitions, 248 flow. Second operand has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 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 14:13:18,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:18,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 73 [2025-02-08 14:13:18,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:19,365 INFO L124 PetriNetUnfolderBase]: 1310/1904 cut-off events. [2025-02-08 14:13:19,366 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2025-02-08 14:13:19,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3922 conditions, 1904 events. 1310/1904 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 9336 event pairs, 736 based on Foata normal form. 12/1178 useless extension candidates. Maximal degree in co-relation 3893. Up to 1753 conditions per place. [2025-02-08 14:13:19,376 INFO L140 encePairwiseOnDemand]: 56/73 looper letters, 45 selfloop transitions, 46 changer transitions 0/103 dead transitions. [2025-02-08 14:13:19,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 103 transitions, 598 flow [2025-02-08 14:13:19,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:13:19,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:13:19,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 250 transitions. [2025-02-08 14:13:19,378 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3424657534246575 [2025-02-08 14:13:19,378 INFO L175 Difference]: Start difference. First operand has 64 places, 70 transitions, 248 flow. Second operand 10 states and 250 transitions. [2025-02-08 14:13:19,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 103 transitions, 598 flow [2025-02-08 14:13:19,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 103 transitions, 591 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:13:19,383 INFO L231 Difference]: Finished difference. Result has 75 places, 103 transitions, 567 flow [2025-02-08 14:13:19,383 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=567, PETRI_PLACES=75, PETRI_TRANSITIONS=103} [2025-02-08 14:13:19,384 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 6 predicate places. [2025-02-08 14:13:19,385 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 103 transitions, 567 flow [2025-02-08 14:13:19,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 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 14:13:19,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:19,385 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:19,391 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 14:13:19,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:19,586 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:19,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:19,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1519114527, now seen corresponding path program 1 times [2025-02-08 14:13:19,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:19,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730225606] [2025-02-08 14:13:19,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:19,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:19,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:13:19,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:13:19,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:19,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:19,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:13:19,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:19,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730225606] [2025-02-08 14:13:19,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730225606] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:13:19,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:13:19,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:13:19,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239799935] [2025-02-08 14:13:19,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:13:19,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:13:19,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:19,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:13:19,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:13:19,718 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 73 [2025-02-08 14:13:19,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 103 transitions, 567 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 14:13:19,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:19,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 73 [2025-02-08 14:13:19,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:20,144 INFO L124 PetriNetUnfolderBase]: 1793/2735 cut-off events. [2025-02-08 14:13:20,144 INFO L125 PetriNetUnfolderBase]: For 233/233 co-relation queries the response was YES. [2025-02-08 14:13:20,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5778 conditions, 2735 events. 1793/2735 cut-off events. For 233/233 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 15963 event pairs, 1176 based on Foata normal form. 39/1815 useless extension candidates. Maximal degree in co-relation 5747. Up to 1756 conditions per place. [2025-02-08 14:13:20,157 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 119 selfloop transitions, 16 changer transitions 0/151 dead transitions. [2025-02-08 14:13:20,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 151 transitions, 1084 flow [2025-02-08 14:13:20,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:13:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:13:20,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 217 transitions. [2025-02-08 14:13:20,160 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4954337899543379 [2025-02-08 14:13:20,160 INFO L175 Difference]: Start difference. First operand has 75 places, 103 transitions, 567 flow. Second operand 6 states and 217 transitions. [2025-02-08 14:13:20,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 151 transitions, 1084 flow [2025-02-08 14:13:20,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 151 transitions, 1017 flow, removed 18 selfloop flow, removed 2 redundant places. [2025-02-08 14:13:20,166 INFO L231 Difference]: Finished difference. Result has 81 places, 112 transitions, 653 flow [2025-02-08 14:13:20,166 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=653, PETRI_PLACES=81, PETRI_TRANSITIONS=112} [2025-02-08 14:13:20,168 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 12 predicate places. [2025-02-08 14:13:20,168 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 112 transitions, 653 flow [2025-02-08 14:13:20,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 14:13:20,169 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:20,169 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:20,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:13:20,169 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:20,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:20,170 INFO L85 PathProgramCache]: Analyzing trace with hash -72418891, now seen corresponding path program 1 times [2025-02-08 14:13:20,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:20,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717236409] [2025-02-08 14:13:20,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:20,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:20,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:13:20,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:13:20,186 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:20,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:20,243 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 14:13:20,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:20,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717236409] [2025-02-08 14:13:20,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717236409] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:13:20,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:13:20,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:13:20,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279056341] [2025-02-08 14:13:20,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:13:20,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:13:20,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:20,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:13:20,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:13:20,245 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 73 [2025-02-08 14:13:20,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 112 transitions, 653 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 14:13:20,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:20,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 73 [2025-02-08 14:13:20,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:20,485 INFO L124 PetriNetUnfolderBase]: 1395/2180 cut-off events. [2025-02-08 14:13:20,485 INFO L125 PetriNetUnfolderBase]: For 391/391 co-relation queries the response was YES. [2025-02-08 14:13:20,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4968 conditions, 2180 events. 1395/2180 cut-off events. For 391/391 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 11243 event pairs, 405 based on Foata normal form. 38/1811 useless extension candidates. Maximal degree in co-relation 4932. Up to 1603 conditions per place. [2025-02-08 14:13:20,496 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 105 selfloop transitions, 2 changer transitions 2/125 dead transitions. [2025-02-08 14:13:20,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 125 transitions, 903 flow [2025-02-08 14:13:20,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:13:20,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:13:20,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2025-02-08 14:13:20,497 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5844748858447488 [2025-02-08 14:13:20,497 INFO L175 Difference]: Start difference. First operand has 81 places, 112 transitions, 653 flow. Second operand 3 states and 128 transitions. [2025-02-08 14:13:20,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 125 transitions, 903 flow [2025-02-08 14:13:20,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 125 transitions, 895 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-08 14:13:20,501 INFO L231 Difference]: Finished difference. Result has 83 places, 113 transitions, 667 flow [2025-02-08 14:13:20,502 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=667, PETRI_PLACES=83, PETRI_TRANSITIONS=113} [2025-02-08 14:13:20,502 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 14 predicate places. [2025-02-08 14:13:20,502 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 113 transitions, 667 flow [2025-02-08 14:13:20,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 14:13:20,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:20,502 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:20,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:13:20,503 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:20,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:20,503 INFO L85 PathProgramCache]: Analyzing trace with hash -72418890, now seen corresponding path program 1 times [2025-02-08 14:13:20,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:20,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698082581] [2025-02-08 14:13:20,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:20,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:20,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:13:20,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:13:20,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:20,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:20,546 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 14:13:20,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:20,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698082581] [2025-02-08 14:13:20,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698082581] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:13:20,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:13:20,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:13:20,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103685747] [2025-02-08 14:13:20,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:13:20,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:13:20,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:20,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:13:20,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:13:20,548 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 73 [2025-02-08 14:13:20,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 113 transitions, 667 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 14:13:20,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:20,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 73 [2025-02-08 14:13:20,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:20,769 INFO L124 PetriNetUnfolderBase]: 1314/2047 cut-off events. [2025-02-08 14:13:20,769 INFO L125 PetriNetUnfolderBase]: For 521/521 co-relation queries the response was YES. [2025-02-08 14:13:20,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5193 conditions, 2047 events. 1314/2047 cut-off events. For 521/521 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 10262 event pairs, 334 based on Foata normal form. 40/1776 useless extension candidates. Maximal degree in co-relation 5156. Up to 1603 conditions per place. [2025-02-08 14:13:20,779 INFO L140 encePairwiseOnDemand]: 70/73 looper letters, 104 selfloop transitions, 2 changer transitions 2/124 dead transitions. [2025-02-08 14:13:20,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 124 transitions, 911 flow [2025-02-08 14:13:20,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:13:20,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:13:20,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 122 transitions. [2025-02-08 14:13:20,782 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5570776255707762 [2025-02-08 14:13:20,782 INFO L175 Difference]: Start difference. First operand has 83 places, 113 transitions, 667 flow. Second operand 3 states and 122 transitions. [2025-02-08 14:13:20,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 124 transitions, 911 flow [2025-02-08 14:13:20,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 124 transitions, 909 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:13:20,786 INFO L231 Difference]: Finished difference. Result has 85 places, 113 transitions, 673 flow [2025-02-08 14:13:20,786 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=673, PETRI_PLACES=85, PETRI_TRANSITIONS=113} [2025-02-08 14:13:20,786 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 16 predicate places. [2025-02-08 14:13:20,786 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 113 transitions, 673 flow [2025-02-08 14:13:20,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 14:13:20,787 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:20,787 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:20,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:13:20,787 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:20,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:20,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1533815001, now seen corresponding path program 1 times [2025-02-08 14:13:20,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:20,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811992696] [2025-02-08 14:13:20,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:20,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:20,801 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:13:20,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:13:20,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:20,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:20,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:13:20,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:20,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811992696] [2025-02-08 14:13:20,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811992696] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:20,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019979236] [2025-02-08 14:13:20,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:20,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:20,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:20,870 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 14:13:20,879 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 14:13:20,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:13:20,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:13:20,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:20,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:20,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 14:13:20,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:21,062 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:21,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:21,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019979236] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:21,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:21,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2025-02-08 14:13:21,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438980066] [2025-02-08 14:13:21,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:21,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 14:13:21,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:21,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 14:13:21,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2025-02-08 14:13:21,389 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 73 [2025-02-08 14:13:21,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 113 transitions, 673 flow. Second operand has 19 states, 19 states have (on average 14.421052631578947) internal successors, (274), 19 states have internal predecessors, (274), 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 14:13:21,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:21,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 73 [2025-02-08 14:13:21,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:22,198 INFO L124 PetriNetUnfolderBase]: 2440/3722 cut-off events. [2025-02-08 14:13:22,199 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2025-02-08 14:13:22,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9558 conditions, 3722 events. 2440/3722 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 20447 event pairs, 1729 based on Foata normal form. 1/3127 useless extension candidates. Maximal degree in co-relation 9509. Up to 1874 conditions per place. [2025-02-08 14:13:22,224 INFO L140 encePairwiseOnDemand]: 58/73 looper letters, 87 selfloop transitions, 76 changer transitions 0/173 dead transitions. [2025-02-08 14:13:22,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 173 transitions, 1336 flow [2025-02-08 14:13:22,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-08 14:13:22,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-08 14:13:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 333 transitions. [2025-02-08 14:13:22,229 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2534246575342466 [2025-02-08 14:13:22,229 INFO L175 Difference]: Start difference. First operand has 85 places, 113 transitions, 673 flow. Second operand 18 states and 333 transitions. [2025-02-08 14:13:22,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 173 transitions, 1336 flow [2025-02-08 14:13:22,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 173 transitions, 1330 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:13:22,237 INFO L231 Difference]: Finished difference. Result has 101 places, 144 transitions, 1169 flow [2025-02-08 14:13:22,238 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1169, PETRI_PLACES=101, PETRI_TRANSITIONS=144} [2025-02-08 14:13:22,238 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 32 predicate places. [2025-02-08 14:13:22,238 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 144 transitions, 1169 flow [2025-02-08 14:13:22,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.421052631578947) internal successors, (274), 19 states have internal predecessors, (274), 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 14:13:22,238 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:22,238 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:22,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 14:13:22,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:22,439 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:22,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:22,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1987657029, now seen corresponding path program 1 times [2025-02-08 14:13:22,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:22,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253369125] [2025-02-08 14:13:22,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:22,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:22,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:13:22,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:13:22,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:22,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:22,491 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 14:13:22,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:22,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253369125] [2025-02-08 14:13:22,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253369125] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:13:22,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:13:22,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:13:22,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002598399] [2025-02-08 14:13:22,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:13:22,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:13:22,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:22,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:13:22,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:13:22,492 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 73 [2025-02-08 14:13:22,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 144 transitions, 1169 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 14:13:22,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:22,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 73 [2025-02-08 14:13:22,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:22,831 INFO L124 PetriNetUnfolderBase]: 2113/3258 cut-off events. [2025-02-08 14:13:22,831 INFO L125 PetriNetUnfolderBase]: For 1112/1112 co-relation queries the response was YES. [2025-02-08 14:13:22,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8391 conditions, 3258 events. 2113/3258 cut-off events. For 1112/1112 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 17505 event pairs, 1478 based on Foata normal form. 0/2841 useless extension candidates. Maximal degree in co-relation 8334. Up to 3094 conditions per place. [2025-02-08 14:13:22,848 INFO L140 encePairwiseOnDemand]: 71/73 looper letters, 127 selfloop transitions, 1 changer transitions 0/143 dead transitions. [2025-02-08 14:13:22,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 143 transitions, 1421 flow [2025-02-08 14:13:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:13:22,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:13:22,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2025-02-08 14:13:22,849 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4977168949771689 [2025-02-08 14:13:22,849 INFO L175 Difference]: Start difference. First operand has 101 places, 144 transitions, 1169 flow. Second operand 3 states and 109 transitions. [2025-02-08 14:13:22,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 143 transitions, 1421 flow [2025-02-08 14:13:22,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 143 transitions, 1325 flow, removed 8 selfloop flow, removed 5 redundant places. [2025-02-08 14:13:22,855 INFO L231 Difference]: Finished difference. Result has 97 places, 143 transitions, 1071 flow [2025-02-08 14:13:22,855 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=1069, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1071, PETRI_PLACES=97, PETRI_TRANSITIONS=143} [2025-02-08 14:13:22,856 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 28 predicate places. [2025-02-08 14:13:22,856 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 143 transitions, 1071 flow [2025-02-08 14:13:22,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 14:13:22,856 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:22,856 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:22,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 14:13:22,856 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:22,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:22,856 INFO L85 PathProgramCache]: Analyzing trace with hash 108452184, now seen corresponding path program 1 times [2025-02-08 14:13:22,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:22,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307345949] [2025-02-08 14:13:22,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:22,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:22,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:13:22,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:13:22,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:22,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:22,934 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:13:22,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:22,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307345949] [2025-02-08 14:13:22,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307345949] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:22,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823138843] [2025-02-08 14:13:22,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:22,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:22,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:22,937 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 14:13:22,938 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 14:13:23,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:13:23,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:13:23,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:23,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:23,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:13:23,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:23,051 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:13:23,051 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:23,076 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:13:23,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823138843] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:23,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:23,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-08 14:13:23,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527729330] [2025-02-08 14:13:23,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:23,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 14:13:23,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:23,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 14:13:23,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 14:13:23,086 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 73 [2025-02-08 14:13:23,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 143 transitions, 1071 flow. Second operand has 12 states, 12 states have (on average 22.5) internal successors, (270), 12 states have internal predecessors, (270), 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 14:13:23,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:23,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 73 [2025-02-08 14:13:23,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:23,472 INFO L124 PetriNetUnfolderBase]: 2116/3270 cut-off events. [2025-02-08 14:13:23,472 INFO L125 PetriNetUnfolderBase]: For 1078/1078 co-relation queries the response was YES. [2025-02-08 14:13:23,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8369 conditions, 3270 events. 2116/3270 cut-off events. For 1078/1078 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 17644 event pairs, 1478 based on Foata normal form. 3/2856 useless extension candidates. Maximal degree in co-relation 8347. Up to 3081 conditions per place. [2025-02-08 14:13:23,495 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 105 selfloop transitions, 33 changer transitions 0/152 dead transitions. [2025-02-08 14:13:23,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 152 transitions, 1383 flow [2025-02-08 14:13:23,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:13:23,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:13:23,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 265 transitions. [2025-02-08 14:13:23,497 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.363013698630137 [2025-02-08 14:13:23,497 INFO L175 Difference]: Start difference. First operand has 97 places, 143 transitions, 1071 flow. Second operand 10 states and 265 transitions. [2025-02-08 14:13:23,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 152 transitions, 1383 flow [2025-02-08 14:13:23,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 152 transitions, 1382 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:13:23,512 INFO L231 Difference]: Finished difference. Result has 108 places, 152 transitions, 1190 flow [2025-02-08 14:13:23,513 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=1070, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1190, PETRI_PLACES=108, PETRI_TRANSITIONS=152} [2025-02-08 14:13:23,513 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 39 predicate places. [2025-02-08 14:13:23,514 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 152 transitions, 1190 flow [2025-02-08 14:13:23,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.5) internal successors, (270), 12 states have internal predecessors, (270), 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 14:13:23,514 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:23,514 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:23,523 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 14:13:23,715 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,SelfDestructingSolverStorable9 [2025-02-08 14:13:23,715 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:23,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:23,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1987657027, now seen corresponding path program 1 times [2025-02-08 14:13:23,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:23,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508597919] [2025-02-08 14:13:23,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:23,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:23,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:13:23,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:13:23,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:23,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:23,936 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 14:13:23,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:23,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508597919] [2025-02-08 14:13:23,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508597919] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:13:23,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:13:23,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:13:23,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422236316] [2025-02-08 14:13:23,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:13:23,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:13:23,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:23,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:13:23,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:13:23,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 73 [2025-02-08 14:13:23,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 152 transitions, 1190 flow. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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 14:13:23,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:23,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 73 [2025-02-08 14:13:23,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:24,280 INFO L124 PetriNetUnfolderBase]: 2298/3760 cut-off events. [2025-02-08 14:13:24,280 INFO L125 PetriNetUnfolderBase]: For 1671/1671 co-relation queries the response was YES. [2025-02-08 14:13:24,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9785 conditions, 3760 events. 2298/3760 cut-off events. For 1671/1671 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 21704 event pairs, 1634 based on Foata normal form. 80/3438 useless extension candidates. Maximal degree in co-relation 9760. Up to 3101 conditions per place. [2025-02-08 14:13:24,293 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 231 selfloop transitions, 3 changer transitions 12/261 dead transitions. [2025-02-08 14:13:24,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 261 transitions, 2597 flow [2025-02-08 14:13:24,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:13:24,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:13:24,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 160 transitions. [2025-02-08 14:13:24,294 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.547945205479452 [2025-02-08 14:13:24,294 INFO L175 Difference]: Start difference. First operand has 108 places, 152 transitions, 1190 flow. Second operand 4 states and 160 transitions. [2025-02-08 14:13:24,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 261 transitions, 2597 flow [2025-02-08 14:13:24,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 261 transitions, 2535 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-08 14:13:24,301 INFO L231 Difference]: Finished difference. Result has 110 places, 152 transitions, 1170 flow [2025-02-08 14:13:24,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=1159, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1170, PETRI_PLACES=110, PETRI_TRANSITIONS=152} [2025-02-08 14:13:24,302 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 41 predicate places. [2025-02-08 14:13:24,302 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 152 transitions, 1170 flow [2025-02-08 14:13:24,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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 14:13:24,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:24,302 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-08 14:13:24,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:13:24,302 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:24,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:24,302 INFO L85 PathProgramCache]: Analyzing trace with hash -320654008, now seen corresponding path program 2 times [2025-02-08 14:13:24,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:24,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421142946] [2025-02-08 14:13:24,303 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:13:24,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:24,311 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:13:24,313 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:13:24,313 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:13:24,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:24,337 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 14:13:24,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:24,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421142946] [2025-02-08 14:13:24,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421142946] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:24,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576690987] [2025-02-08 14:13:24,337 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:13:24,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:24,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:24,340 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 14:13:24,341 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 14:13:24,408 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:13:24,416 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:13:24,416 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:13:24,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:24,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:13:24,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:24,432 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 14:13:24,432 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:24,447 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 14:13:24,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576690987] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:24,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:24,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-02-08 14:13:24,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883982040] [2025-02-08 14:13:24,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:24,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:13:24,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:24,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:13:24,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:13:24,458 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 73 [2025-02-08 14:13:24,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 152 transitions, 1170 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 14:13:24,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:24,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 73 [2025-02-08 14:13:24,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:24,985 INFO L124 PetriNetUnfolderBase]: 2298/3759 cut-off events. [2025-02-08 14:13:24,986 INFO L125 PetriNetUnfolderBase]: For 2121/2121 co-relation queries the response was YES. [2025-02-08 14:13:24,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10211 conditions, 3759 events. 2298/3759 cut-off events. For 2121/2121 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 21846 event pairs, 1634 based on Foata normal form. 1/3334 useless extension candidates. Maximal degree in co-relation 10183. Up to 3518 conditions per place. [2025-02-08 14:13:25,011 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 124 selfloop transitions, 16 changer transitions 0/151 dead transitions. [2025-02-08 14:13:25,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 151 transitions, 1440 flow [2025-02-08 14:13:25,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:13:25,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:13:25,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2025-02-08 14:13:25,020 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3527397260273973 [2025-02-08 14:13:25,020 INFO L175 Difference]: Start difference. First operand has 110 places, 152 transitions, 1170 flow. Second operand 4 states and 103 transitions. [2025-02-08 14:13:25,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 151 transitions, 1440 flow [2025-02-08 14:13:25,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 151 transitions, 1436 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-08 14:13:25,028 INFO L231 Difference]: Finished difference. Result has 111 places, 151 transitions, 1188 flow [2025-02-08 14:13:25,028 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1188, PETRI_PLACES=111, PETRI_TRANSITIONS=151} [2025-02-08 14:13:25,028 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 42 predicate places. [2025-02-08 14:13:25,028 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 151 transitions, 1188 flow [2025-02-08 14:13:25,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 14:13:25,029 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:25,029 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1] [2025-02-08 14:13:25,035 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 14:13:25,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-02-08 14:13:25,229 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:25,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:25,230 INFO L85 PathProgramCache]: Analyzing trace with hash -811996539, now seen corresponding path program 1 times [2025-02-08 14:13:25,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:25,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362614422] [2025-02-08 14:13:25,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:25,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:25,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:13:25,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:13:25,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:25,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:25,356 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:25,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:25,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362614422] [2025-02-08 14:13:25,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362614422] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:25,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41178586] [2025-02-08 14:13:25,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:25,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:25,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:25,361 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 14:13:25,362 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 14:13:25,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:13:25,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:13:25,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:25,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:25,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 14:13:25,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:25,480 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:25,480 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:25,578 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:25,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41178586] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:25,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:25,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-02-08 14:13:25,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638649830] [2025-02-08 14:13:25,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:25,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 14:13:25,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:25,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 14:13:25,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-02-08 14:13:25,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 73 [2025-02-08 14:13:25,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 151 transitions, 1188 flow. Second operand has 24 states, 24 states have (on average 16.083333333333332) internal successors, (386), 24 states have internal predecessors, (386), 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 14:13:25,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:25,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 73 [2025-02-08 14:13:25,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:26,276 INFO L124 PetriNetUnfolderBase]: 2352/4083 cut-off events. [2025-02-08 14:13:26,276 INFO L125 PetriNetUnfolderBase]: For 4244/4244 co-relation queries the response was YES. [2025-02-08 14:13:26,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11659 conditions, 4083 events. 2352/4083 cut-off events. For 4244/4244 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 24688 event pairs, 1634 based on Foata normal form. 84/3741 useless extension candidates. Maximal degree in co-relation 11630. Up to 3438 conditions per place. [2025-02-08 14:13:26,291 INFO L140 encePairwiseOnDemand]: 57/73 looper letters, 65 selfloop transitions, 177 changer transitions 0/253 dead transitions. [2025-02-08 14:13:26,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 253 transitions, 2722 flow [2025-02-08 14:13:26,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-08 14:13:26,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-08 14:13:26,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 500 transitions. [2025-02-08 14:13:26,293 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.31133250311332505 [2025-02-08 14:13:26,293 INFO L175 Difference]: Start difference. First operand has 111 places, 151 transitions, 1188 flow. Second operand 22 states and 500 transitions. [2025-02-08 14:13:26,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 253 transitions, 2722 flow [2025-02-08 14:13:26,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 253 transitions, 2620 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:13:26,303 INFO L231 Difference]: Finished difference. Result has 134 places, 253 transitions, 2628 flow [2025-02-08 14:13:26,303 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2628, PETRI_PLACES=134, PETRI_TRANSITIONS=253} [2025-02-08 14:13:26,303 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 65 predicate places. [2025-02-08 14:13:26,303 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 253 transitions, 2628 flow [2025-02-08 14:13:26,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 16.083333333333332) internal successors, (386), 24 states have internal predecessors, (386), 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 14:13:26,303 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:26,304 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 14:13:26,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 14:13:26,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-02-08 14:13:26,504 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:26,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:26,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1713148648, now seen corresponding path program 1 times [2025-02-08 14:13:26,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:26,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687807675] [2025-02-08 14:13:26,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:26,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:26,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 14:13:26,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 14:13:26,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:26,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:26,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:13:26,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:26,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687807675] [2025-02-08 14:13:26,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687807675] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:13:26,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:13:26,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:13:26,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515730813] [2025-02-08 14:13:26,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:13:26,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:13:26,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:26,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:13:26,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:13:26,656 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 73 [2025-02-08 14:13:26,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 253 transitions, 2628 flow. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 14:13:26,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:26,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 73 [2025-02-08 14:13:26,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:27,208 INFO L124 PetriNetUnfolderBase]: 2792/5111 cut-off events. [2025-02-08 14:13:27,209 INFO L125 PetriNetUnfolderBase]: For 6504/6504 co-relation queries the response was YES. [2025-02-08 14:13:27,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15189 conditions, 5111 events. 2792/5111 cut-off events. For 6504/6504 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 33247 event pairs, 980 based on Foata normal form. 62/4756 useless extension candidates. Maximal degree in co-relation 15155. Up to 2615 conditions per place. [2025-02-08 14:13:27,223 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 295 selfloop transitions, 19 changer transitions 15/343 dead transitions. [2025-02-08 14:13:27,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 343 transitions, 4037 flow [2025-02-08 14:13:27,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:13:27,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:13:27,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2025-02-08 14:13:27,225 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5178082191780822 [2025-02-08 14:13:27,225 INFO L175 Difference]: Start difference. First operand has 134 places, 253 transitions, 2628 flow. Second operand 5 states and 189 transitions. [2025-02-08 14:13:27,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 343 transitions, 4037 flow [2025-02-08 14:13:27,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 343 transitions, 3463 flow, removed 181 selfloop flow, removed 9 redundant places. [2025-02-08 14:13:27,242 INFO L231 Difference]: Finished difference. Result has 129 places, 253 transitions, 2210 flow [2025-02-08 14:13:27,242 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=2172, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2210, PETRI_PLACES=129, PETRI_TRANSITIONS=253} [2025-02-08 14:13:27,242 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 60 predicate places. [2025-02-08 14:13:27,243 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 253 transitions, 2210 flow [2025-02-08 14:13:27,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 14:13:27,243 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:27,243 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:27,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 14:13:27,243 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:27,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:27,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1865317731, now seen corresponding path program 1 times [2025-02-08 14:13:27,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:27,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681172665] [2025-02-08 14:13:27,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:27,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:27,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 14:13:27,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 14:13:27,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:27,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:27,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:13:27,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:27,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681172665] [2025-02-08 14:13:27,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681172665] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:27,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084864059] [2025-02-08 14:13:27,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:27,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:27,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:27,523 INFO L229 MonitoredProcess]: Starting monitored process 8 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 14:13:27,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 14:13:27,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 14:13:27,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 14:13:27,633 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:27,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:27,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 14:13:27,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:27,666 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 14:13:27,666 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:13:27,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084864059] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:13:27,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:13:27,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2025-02-08 14:13:27,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461169218] [2025-02-08 14:13:27,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:13:27,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:13:27,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:27,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:13:27,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:13:27,668 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 73 [2025-02-08 14:13:27,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 253 transitions, 2210 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 14:13:27,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:27,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 73 [2025-02-08 14:13:27,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:27,938 INFO L124 PetriNetUnfolderBase]: 1346/3243 cut-off events. [2025-02-08 14:13:27,939 INFO L125 PetriNetUnfolderBase]: For 4224/4224 co-relation queries the response was YES. [2025-02-08 14:13:27,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9323 conditions, 3243 events. 1346/3243 cut-off events. For 4224/4224 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 24621 event pairs, 1182 based on Foata normal form. 255/3333 useless extension candidates. Maximal degree in co-relation 9289. Up to 2138 conditions per place. [2025-02-08 14:13:27,950 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 223 selfloop transitions, 10 changer transitions 2/249 dead transitions. [2025-02-08 14:13:27,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 249 transitions, 2664 flow [2025-02-08 14:13:27,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:13:27,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:13:27,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2025-02-08 14:13:27,951 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4452054794520548 [2025-02-08 14:13:27,951 INFO L175 Difference]: Start difference. First operand has 129 places, 253 transitions, 2210 flow. Second operand 4 states and 130 transitions. [2025-02-08 14:13:27,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 249 transitions, 2664 flow [2025-02-08 14:13:27,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 249 transitions, 2660 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:13:27,968 INFO L231 Difference]: Finished difference. Result has 128 places, 247 transitions, 2205 flow [2025-02-08 14:13:27,968 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=2190, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2205, PETRI_PLACES=128, PETRI_TRANSITIONS=247} [2025-02-08 14:13:27,968 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 59 predicate places. [2025-02-08 14:13:27,968 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 247 transitions, 2205 flow [2025-02-08 14:13:27,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 14:13:27,969 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:27,969 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:27,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 14:13:28,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:28,169 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:28,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:28,170 INFO L85 PathProgramCache]: Analyzing trace with hash -2021958273, now seen corresponding path program 1 times [2025-02-08 14:13:28,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:28,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863345591] [2025-02-08 14:13:28,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:28,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:28,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 14:13:28,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 14:13:28,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:28,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:28,302 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:13:28,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:28,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863345591] [2025-02-08 14:13:28,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863345591] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:28,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473157979] [2025-02-08 14:13:28,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:28,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:28,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:28,305 INFO L229 MonitoredProcess]: Starting monitored process 9 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 14:13:28,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 14:13:28,390 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 14:13:28,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 14:13:28,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:28,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:28,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 14:13:28,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:28,442 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:13:28,442 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:28,473 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:13:28,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473157979] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:28,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 14:13:28,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2025-02-08 14:13:28,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995616325] [2025-02-08 14:13:28,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:13:28,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:13:28,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:28,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:13:28,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-02-08 14:13:28,474 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 73 [2025-02-08 14:13:28,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 247 transitions, 2205 flow. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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 14:13:28,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:28,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 73 [2025-02-08 14:13:28,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:28,820 INFO L124 PetriNetUnfolderBase]: 792/2277 cut-off events. [2025-02-08 14:13:28,821 INFO L125 PetriNetUnfolderBase]: For 3534/3534 co-relation queries the response was YES. [2025-02-08 14:13:28,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7296 conditions, 2277 events. 792/2277 cut-off events. For 3534/3534 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 16509 event pairs, 636 based on Foata normal form. 8/2156 useless extension candidates. Maximal degree in co-relation 7263. Up to 1420 conditions per place. [2025-02-08 14:13:28,830 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 226 selfloop transitions, 45 changer transitions 11/296 dead transitions. [2025-02-08 14:13:28,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 296 transitions, 3145 flow [2025-02-08 14:13:28,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:13:28,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:13:28,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2025-02-08 14:13:28,831 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4657534246575342 [2025-02-08 14:13:28,831 INFO L175 Difference]: Start difference. First operand has 128 places, 247 transitions, 2205 flow. Second operand 5 states and 170 transitions. [2025-02-08 14:13:28,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 296 transitions, 3145 flow [2025-02-08 14:13:28,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 296 transitions, 3129 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:13:28,851 INFO L231 Difference]: Finished difference. Result has 128 places, 245 transitions, 2265 flow [2025-02-08 14:13:28,851 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=2175, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2265, PETRI_PLACES=128, PETRI_TRANSITIONS=245} [2025-02-08 14:13:28,852 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 59 predicate places. [2025-02-08 14:13:28,852 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 245 transitions, 2265 flow [2025-02-08 14:13:28,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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 14:13:28,852 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:28,852 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-08 14:13:28,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 14:13:29,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-02-08 14:13:29,053 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:29,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:29,053 INFO L85 PathProgramCache]: Analyzing trace with hash 884731480, now seen corresponding path program 2 times [2025-02-08 14:13:29,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:29,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313704957] [2025-02-08 14:13:29,054 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:13:29,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:29,066 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-02-08 14:13:29,076 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 14:13:29,076 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:13:29,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:29,229 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:13:29,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:29,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313704957] [2025-02-08 14:13:29,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313704957] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:29,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007055911] [2025-02-08 14:13:29,229 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:13:29,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:29,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:29,234 INFO L229 MonitoredProcess]: Starting monitored process 10 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 14:13:29,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 14:13:29,320 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-02-08 14:13:29,346 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 14:13:29,346 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:13:29,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:29,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:13:29,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-08 14:13:29,393 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:29,429 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-08 14:13:29,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007055911] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:29,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:29,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3, 3] total 12 [2025-02-08 14:13:29,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301317515] [2025-02-08 14:13:29,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:29,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 14:13:29,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:29,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 14:13:29,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 14:13:29,506 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 73 [2025-02-08 14:13:29,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 245 transitions, 2265 flow. Second operand has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 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 14:13:29,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:29,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 73 [2025-02-08 14:13:29,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:30,081 INFO L124 PetriNetUnfolderBase]: 1126/3147 cut-off events. [2025-02-08 14:13:30,081 INFO L125 PetriNetUnfolderBase]: For 5279/5279 co-relation queries the response was YES. [2025-02-08 14:13:30,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10140 conditions, 3147 events. 1126/3147 cut-off events. For 5279/5279 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 24257 event pairs, 912 based on Foata normal form. 8/2953 useless extension candidates. Maximal degree in co-relation 10107. Up to 1252 conditions per place. [2025-02-08 14:13:30,091 INFO L140 encePairwiseOnDemand]: 58/73 looper letters, 133 selfloop transitions, 192 changer transitions 0/335 dead transitions. [2025-02-08 14:13:30,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 335 transitions, 3732 flow [2025-02-08 14:13:30,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-08 14:13:30,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-08 14:13:30,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 314 transitions. [2025-02-08 14:13:30,092 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2389649923896499 [2025-02-08 14:13:30,093 INFO L175 Difference]: Start difference. First operand has 128 places, 245 transitions, 2265 flow. Second operand 18 states and 314 transitions. [2025-02-08 14:13:30,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 335 transitions, 3732 flow [2025-02-08 14:13:30,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 335 transitions, 3633 flow, removed 2 selfloop flow, removed 7 redundant places. [2025-02-08 14:13:30,116 INFO L231 Difference]: Finished difference. Result has 140 places, 315 transitions, 3577 flow [2025-02-08 14:13:30,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=2186, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3577, PETRI_PLACES=140, PETRI_TRANSITIONS=315} [2025-02-08 14:13:30,117 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 71 predicate places. [2025-02-08 14:13:30,117 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 315 transitions, 3577 flow [2025-02-08 14:13:30,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 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 14:13:30,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:30,117 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:30,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-08 14:13:30,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:30,318 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:30,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:30,319 INFO L85 PathProgramCache]: Analyzing trace with hash 976889603, now seen corresponding path program 1 times [2025-02-08 14:13:30,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:30,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122297308] [2025-02-08 14:13:30,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:30,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:30,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 14:13:30,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 14:13:30,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:30,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:30,465 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 14:13:30,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:30,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122297308] [2025-02-08 14:13:30,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122297308] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:30,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049093615] [2025-02-08 14:13:30,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:30,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:30,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:30,470 INFO L229 MonitoredProcess]: Starting monitored process 11 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 14:13:30,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 14:13:30,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 14:13:30,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 14:13:30,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:30,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:30,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:13:30,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:30,625 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:13:30,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:30,655 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:13:30,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049093615] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:30,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:30,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 2, 2] total 8 [2025-02-08 14:13:30,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872389942] [2025-02-08 14:13:30,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:30,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 14:13:30,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:30,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 14:13:30,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-08 14:13:30,689 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 73 [2025-02-08 14:13:30,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 315 transitions, 3577 flow. Second operand has 9 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 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 14:13:30,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:30,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 73 [2025-02-08 14:13:30,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:31,291 INFO L124 PetriNetUnfolderBase]: 1818/4785 cut-off events. [2025-02-08 14:13:31,292 INFO L125 PetriNetUnfolderBase]: For 10205/10205 co-relation queries the response was YES. [2025-02-08 14:13:31,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16266 conditions, 4785 events. 1818/4785 cut-off events. For 10205/10205 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 39340 event pairs, 824 based on Foata normal form. 120/4517 useless extension candidates. Maximal degree in co-relation 16233. Up to 1732 conditions per place. [2025-02-08 14:13:31,316 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 406 selfloop transitions, 34 changer transitions 0/450 dead transitions. [2025-02-08 14:13:31,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 450 transitions, 5759 flow [2025-02-08 14:13:31,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 14:13:31,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 14:13:31,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 218 transitions. [2025-02-08 14:13:31,319 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3318112633181126 [2025-02-08 14:13:31,320 INFO L175 Difference]: Start difference. First operand has 140 places, 315 transitions, 3577 flow. Second operand 9 states and 218 transitions. [2025-02-08 14:13:31,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 450 transitions, 5759 flow [2025-02-08 14:13:31,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 450 transitions, 5728 flow, removed 2 selfloop flow, removed 7 redundant places. [2025-02-08 14:13:31,360 INFO L231 Difference]: Finished difference. Result has 142 places, 316 transitions, 3651 flow [2025-02-08 14:13:31,360 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=3543, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3651, PETRI_PLACES=142, PETRI_TRANSITIONS=316} [2025-02-08 14:13:31,360 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 73 predicate places. [2025-02-08 14:13:31,360 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 316 transitions, 3651 flow [2025-02-08 14:13:31,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 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 14:13:31,361 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:31,361 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:31,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-08 14:13:31,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-08 14:13:31,564 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:31,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:31,564 INFO L85 PathProgramCache]: Analyzing trace with hash 976889608, now seen corresponding path program 1 times [2025-02-08 14:13:31,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:31,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852930107] [2025-02-08 14:13:31,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:31,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:31,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 14:13:31,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 14:13:31,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:31,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:31,633 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 14:13:31,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:31,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852930107] [2025-02-08 14:13:31,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852930107] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:13:31,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:13:31,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:13:31,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700003053] [2025-02-08 14:13:31,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:13:31,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:13:31,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:31,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:13:31,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:13:31,635 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 73 [2025-02-08 14:13:31,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 316 transitions, 3651 flow. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 14:13:31,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:31,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 73 [2025-02-08 14:13:31,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:32,082 INFO L124 PetriNetUnfolderBase]: 1626/4489 cut-off events. [2025-02-08 14:13:32,082 INFO L125 PetriNetUnfolderBase]: For 10842/10842 co-relation queries the response was YES. [2025-02-08 14:13:32,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15785 conditions, 4489 events. 1626/4489 cut-off events. For 10842/10842 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 37555 event pairs, 1336 based on Foata normal form. 0/4321 useless extension candidates. Maximal degree in co-relation 15750. Up to 3708 conditions per place. [2025-02-08 14:13:32,107 INFO L140 encePairwiseOnDemand]: 71/73 looper letters, 301 selfloop transitions, 1 changer transitions 0/315 dead transitions. [2025-02-08 14:13:32,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 315 transitions, 4251 flow [2025-02-08 14:13:32,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:13:32,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:13:32,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2025-02-08 14:13:32,108 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4611872146118721 [2025-02-08 14:13:32,108 INFO L175 Difference]: Start difference. First operand has 142 places, 316 transitions, 3651 flow. Second operand 3 states and 101 transitions. [2025-02-08 14:13:32,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 315 transitions, 4251 flow [2025-02-08 14:13:32,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 315 transitions, 4231 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:13:32,149 INFO L231 Difference]: Finished difference. Result has 141 places, 315 transitions, 3629 flow [2025-02-08 14:13:32,149 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=3627, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3629, PETRI_PLACES=141, PETRI_TRANSITIONS=315} [2025-02-08 14:13:32,149 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 72 predicate places. [2025-02-08 14:13:32,149 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 315 transitions, 3629 flow [2025-02-08 14:13:32,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 14:13:32,150 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:32,150 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:32,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 14:13:32,150 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:32,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:32,150 INFO L85 PathProgramCache]: Analyzing trace with hash 976889602, now seen corresponding path program 1 times [2025-02-08 14:13:32,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:32,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986536221] [2025-02-08 14:13:32,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:32,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:32,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 14:13:32,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 14:13:32,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:32,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:32,215 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:13:32,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:32,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986536221] [2025-02-08 14:13:32,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986536221] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:32,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601569345] [2025-02-08 14:13:32,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:32,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:32,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:32,221 INFO L229 MonitoredProcess]: Starting monitored process 12 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 14:13:32,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 14:13:32,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 14:13:32,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 14:13:32,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:32,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:32,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:13:32,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:32,460 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:13:32,460 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:13:32,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601569345] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:13:32,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:13:32,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2025-02-08 14:13:32,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485799373] [2025-02-08 14:13:32,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:13:32,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:13:32,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:32,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:13:32,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:13:32,461 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 73 [2025-02-08 14:13:32,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 315 transitions, 3629 flow. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 14:13:32,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:32,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 73 [2025-02-08 14:13:32,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:32,929 INFO L124 PetriNetUnfolderBase]: 1434/4145 cut-off events. [2025-02-08 14:13:32,929 INFO L125 PetriNetUnfolderBase]: For 10676/10676 co-relation queries the response was YES. [2025-02-08 14:13:32,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14766 conditions, 4145 events. 1434/4145 cut-off events. For 10676/10676 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 34268 event pairs, 312 based on Foata normal form. 120/4105 useless extension candidates. Maximal degree in co-relation 14730. Up to 1924 conditions per place. [2025-02-08 14:13:32,946 INFO L140 encePairwiseOnDemand]: 70/73 looper letters, 305 selfloop transitions, 3 changer transitions 0/321 dead transitions. [2025-02-08 14:13:32,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 321 transitions, 4251 flow [2025-02-08 14:13:32,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:13:32,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:13:32,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2025-02-08 14:13:32,948 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4520547945205479 [2025-02-08 14:13:32,948 INFO L175 Difference]: Start difference. First operand has 141 places, 315 transitions, 3629 flow. Second operand 4 states and 132 transitions. [2025-02-08 14:13:32,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 321 transitions, 4251 flow [2025-02-08 14:13:32,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 321 transitions, 4218 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:13:32,985 INFO L231 Difference]: Finished difference. Result has 139 places, 313 transitions, 3589 flow [2025-02-08 14:13:32,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=3583, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=3589, PETRI_PLACES=139, PETRI_TRANSITIONS=313} [2025-02-08 14:13:32,985 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 70 predicate places. [2025-02-08 14:13:32,985 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 313 transitions, 3589 flow [2025-02-08 14:13:32,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 14:13:32,985 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:32,985 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:32,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-08 14:13:33,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:33,186 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:33,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:33,186 INFO L85 PathProgramCache]: Analyzing trace with hash 976889609, now seen corresponding path program 1 times [2025-02-08 14:13:33,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:33,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138224063] [2025-02-08 14:13:33,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:33,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:33,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 14:13:33,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 14:13:33,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:33,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:33,238 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:13:33,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:33,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138224063] [2025-02-08 14:13:33,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138224063] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:33,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811515121] [2025-02-08 14:13:33,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:33,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:33,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:33,240 INFO L229 MonitoredProcess]: Starting monitored process 13 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 14:13:33,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 14:13:33,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 14:13:33,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 14:13:33,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:33,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:33,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:13:33,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:33,404 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:13:33,404 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:33,458 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:13:33,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811515121] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:33,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:33,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2025-02-08 14:13:33,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369594959] [2025-02-08 14:13:33,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:33,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:13:33,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:33,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:13:33,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:13:33,460 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 73 [2025-02-08 14:13:33,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 313 transitions, 3589 flow. Second operand has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 states have internal predecessors, (215), 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 14:13:33,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:33,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 73 [2025-02-08 14:13:33,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:34,244 INFO L124 PetriNetUnfolderBase]: 3162/7313 cut-off events. [2025-02-08 14:13:34,244 INFO L125 PetriNetUnfolderBase]: For 11232/11232 co-relation queries the response was YES. [2025-02-08 14:13:34,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21969 conditions, 7313 events. 3162/7313 cut-off events. For 11232/11232 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 59092 event pairs, 312 based on Foata normal form. 0/7153 useless extension candidates. Maximal degree in co-relation 21934. Up to 1924 conditions per place. [2025-02-08 14:13:34,279 INFO L140 encePairwiseOnDemand]: 70/73 looper letters, 335 selfloop transitions, 6 changer transitions 0/354 dead transitions. [2025-02-08 14:13:34,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 354 transitions, 4377 flow [2025-02-08 14:13:34,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:13:34,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:13:34,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 213 transitions. [2025-02-08 14:13:34,279 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4863013698630137 [2025-02-08 14:13:34,279 INFO L175 Difference]: Start difference. First operand has 139 places, 313 transitions, 3589 flow. Second operand 6 states and 213 transitions. [2025-02-08 14:13:34,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 354 transitions, 4377 flow [2025-02-08 14:13:34,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 354 transitions, 4373 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:13:34,316 INFO L231 Difference]: Finished difference. Result has 145 places, 316 transitions, 3624 flow [2025-02-08 14:13:34,317 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=3585, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3624, PETRI_PLACES=145, PETRI_TRANSITIONS=316} [2025-02-08 14:13:34,317 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 76 predicate places. [2025-02-08 14:13:34,317 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 316 transitions, 3624 flow [2025-02-08 14:13:34,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 states have internal predecessors, (215), 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 14:13:34,317 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:34,317 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 1, 1, 1] [2025-02-08 14:13:34,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-08 14:13:34,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:34,518 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:34,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:34,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1372013509, now seen corresponding path program 2 times [2025-02-08 14:13:34,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:34,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565529983] [2025-02-08 14:13:34,519 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:13:34,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:34,540 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-02-08 14:13:34,547 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 35 statements. [2025-02-08 14:13:34,547 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:13:34,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:34,585 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:13:34,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:34,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565529983] [2025-02-08 14:13:34,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565529983] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:34,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991131499] [2025-02-08 14:13:34,585 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:13:34,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:34,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:34,588 INFO L229 MonitoredProcess]: Starting monitored process 14 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 14:13:34,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 14:13:34,689 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-02-08 14:13:34,700 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 35 statements. [2025-02-08 14:13:34,700 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:13:34,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:34,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:13:34,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:34,738 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:13:34,738 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:34,774 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-08 14:13:34,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991131499] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:34,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:34,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-02-08 14:13:34,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260005851] [2025-02-08 14:13:34,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:34,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:13:34,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:34,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:13:34,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:13:34,793 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 73 [2025-02-08 14:13:34,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 316 transitions, 3624 flow. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 14:13:34,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:34,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 73 [2025-02-08 14:13:34,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:35,517 INFO L124 PetriNetUnfolderBase]: 3162/7343 cut-off events. [2025-02-08 14:13:35,517 INFO L125 PetriNetUnfolderBase]: For 15366/15366 co-relation queries the response was YES. [2025-02-08 14:13:35,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23374 conditions, 7343 events. 3162/7343 cut-off events. For 15366/15366 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 60110 event pairs, 2872 based on Foata normal form. 2/7297 useless extension candidates. Maximal degree in co-relation 23336. Up to 6158 conditions per place. [2025-02-08 14:13:35,556 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 249 selfloop transitions, 56 changer transitions 0/315 dead transitions. [2025-02-08 14:13:35,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 315 transitions, 4212 flow [2025-02-08 14:13:35,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:13:35,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:13:35,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2025-02-08 14:13:35,557 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2958904109589041 [2025-02-08 14:13:35,557 INFO L175 Difference]: Start difference. First operand has 145 places, 316 transitions, 3624 flow. Second operand 5 states and 108 transitions. [2025-02-08 14:13:35,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 315 transitions, 4212 flow [2025-02-08 14:13:35,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 315 transitions, 4203 flow, removed 3 selfloop flow, removed 1 redundant places. [2025-02-08 14:13:35,602 INFO L231 Difference]: Finished difference. Result has 147 places, 315 transitions, 3705 flow [2025-02-08 14:13:35,602 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=3593, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3705, PETRI_PLACES=147, PETRI_TRANSITIONS=315} [2025-02-08 14:13:35,603 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 78 predicate places. [2025-02-08 14:13:35,603 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 315 transitions, 3705 flow [2025-02-08 14:13:35,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 14:13:35,603 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:35,603 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 1, 1, 1, 1] [2025-02-08 14:13:35,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-08 14:13:35,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:35,804 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:35,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:35,805 INFO L85 PathProgramCache]: Analyzing trace with hash 328628653, now seen corresponding path program 1 times [2025-02-08 14:13:35,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:35,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138730512] [2025-02-08 14:13:35,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:35,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:35,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-08 14:13:35,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-08 14:13:35,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:35,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:36,100 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:36,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:36,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138730512] [2025-02-08 14:13:36,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138730512] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:36,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929752778] [2025-02-08 14:13:36,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:36,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:36,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:36,106 INFO L229 MonitoredProcess]: Starting monitored process 15 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 14:13:36,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-08 14:13:36,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-08 14:13:36,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-08 14:13:36,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:36,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:36,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-08 14:13:36,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:36,334 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:36,335 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:36,735 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:36,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929752778] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:36,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:36,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2025-02-08 14:13:36,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618718560] [2025-02-08 14:13:36,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:36,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-02-08 14:13:36,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:36,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-02-08 14:13:36,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2025-02-08 14:13:36,863 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 73 [2025-02-08 14:13:36,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 315 transitions, 3705 flow. Second operand has 48 states, 48 states have (on average 16.0625) internal successors, (771), 48 states have internal predecessors, (771), 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 14:13:36,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:36,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 73 [2025-02-08 14:13:36,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:38,741 INFO L124 PetriNetUnfolderBase]: 3294/8735 cut-off events. [2025-02-08 14:13:38,742 INFO L125 PetriNetUnfolderBase]: For 44785/44785 co-relation queries the response was YES. [2025-02-08 14:13:38,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30819 conditions, 8735 events. 3294/8735 cut-off events. For 44785/44785 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 73077 event pairs, 2872 based on Foata normal form. 384/9071 useless extension candidates. Maximal degree in co-relation 30780. Up to 5610 conditions per place. [2025-02-08 14:13:38,774 INFO L140 encePairwiseOnDemand]: 58/73 looper letters, 76 selfloop transitions, 493 changer transitions 0/579 dead transitions. [2025-02-08 14:13:38,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 579 transitions, 8299 flow [2025-02-08 14:13:38,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-02-08 14:13:38,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2025-02-08 14:13:38,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 988 transitions. [2025-02-08 14:13:38,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2942227516378797 [2025-02-08 14:13:38,778 INFO L175 Difference]: Start difference. First operand has 147 places, 315 transitions, 3705 flow. Second operand 46 states and 988 transitions. [2025-02-08 14:13:38,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 579 transitions, 8299 flow [2025-02-08 14:13:38,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 579 transitions, 8090 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:13:38,850 INFO L231 Difference]: Finished difference. Result has 201 places, 579 transitions, 8218 flow [2025-02-08 14:13:38,850 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=3604, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=249, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=8218, PETRI_PLACES=201, PETRI_TRANSITIONS=579} [2025-02-08 14:13:38,850 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 132 predicate places. [2025-02-08 14:13:38,850 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 579 transitions, 8218 flow [2025-02-08 14:13:38,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 16.0625) internal successors, (771), 48 states have internal predecessors, (771), 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 14:13:38,851 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:38,851 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:38,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-02-08 14:13:39,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-02-08 14:13:39,055 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:39,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash 313513354, now seen corresponding path program 2 times [2025-02-08 14:13:39,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:39,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637390101] [2025-02-08 14:13:39,055 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:13:39,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:39,065 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 2 equivalence classes. [2025-02-08 14:13:39,075 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 38 of 38 statements. [2025-02-08 14:13:39,075 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:13:39,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:39,196 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:13:39,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:39,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637390101] [2025-02-08 14:13:39,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637390101] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:39,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413637868] [2025-02-08 14:13:39,197 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:13:39,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:39,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:39,202 INFO L229 MonitoredProcess]: Starting monitored process 16 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 14:13:39,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-08 14:13:39,329 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 2 equivalence classes. [2025-02-08 14:13:39,362 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 38 of 38 statements. [2025-02-08 14:13:39,362 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:13:39,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:39,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 14:13:39,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:39,422 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:13:39,423 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:13:39,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413637868] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:39,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:39,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-08 14:13:39,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59865875] [2025-02-08 14:13:39,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:39,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 14:13:39,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:39,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 14:13:39,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-02-08 14:13:39,488 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 73 [2025-02-08 14:13:39,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 579 transitions, 8218 flow. Second operand has 13 states, 13 states have (on average 28.53846153846154) internal successors, (371), 13 states have internal predecessors, (371), 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 14:13:39,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:39,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 73 [2025-02-08 14:13:39,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:41,906 INFO L124 PetriNetUnfolderBase]: 6750/15039 cut-off events. [2025-02-08 14:13:41,906 INFO L125 PetriNetUnfolderBase]: For 43924/43924 co-relation queries the response was YES. [2025-02-08 14:13:41,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48185 conditions, 15039 events. 6750/15039 cut-off events. For 43924/43924 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 122975 event pairs, 312 based on Foata normal form. 720/15719 useless extension candidates. Maximal degree in co-relation 48134. Up to 2896 conditions per place. [2025-02-08 14:13:41,991 INFO L140 encePairwiseOnDemand]: 70/73 looper letters, 659 selfloop transitions, 12 changer transitions 0/683 dead transitions. [2025-02-08 14:13:41,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 683 transitions, 9840 flow [2025-02-08 14:13:41,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 14:13:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 14:13:41,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 420 transitions. [2025-02-08 14:13:41,992 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4794520547945205 [2025-02-08 14:13:41,992 INFO L175 Difference]: Start difference. First operand has 201 places, 579 transitions, 8218 flow. Second operand 12 states and 420 transitions. [2025-02-08 14:13:41,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 683 transitions, 9840 flow [2025-02-08 14:13:42,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 683 transitions, 8622 flow, removed 356 selfloop flow, removed 21 redundant places. [2025-02-08 14:13:42,126 INFO L231 Difference]: Finished difference. Result has 197 places, 585 transitions, 7086 flow [2025-02-08 14:13:42,127 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=7000, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7086, PETRI_PLACES=197, PETRI_TRANSITIONS=585} [2025-02-08 14:13:42,127 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 128 predicate places. [2025-02-08 14:13:42,127 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 585 transitions, 7086 flow [2025-02-08 14:13:42,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 28.53846153846154) internal successors, (371), 13 states have internal predecessors, (371), 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 14:13:42,130 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:42,130 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:42,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-08 14:13:42,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-02-08 14:13:42,331 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:42,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:42,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1673968116, now seen corresponding path program 3 times [2025-02-08 14:13:42,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:42,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804585193] [2025-02-08 14:13:42,331 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:13:42,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:42,350 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 62 statements into 11 equivalence classes. [2025-02-08 14:13:42,382 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 30 of 62 statements. [2025-02-08 14:13:42,382 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-08 14:13:42,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:42,636 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 2 proven. 39 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2025-02-08 14:13:42,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:42,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804585193] [2025-02-08 14:13:42,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804585193] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:42,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865129275] [2025-02-08 14:13:42,636 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:13:42,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:42,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:42,640 INFO L229 MonitoredProcess]: Starting monitored process 17 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 14:13:42,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-08 14:13:42,760 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 62 statements into 11 equivalence classes. [2025-02-08 14:13:42,793 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 30 of 62 statements. [2025-02-08 14:13:42,794 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-08 14:13:42,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:42,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-08 14:13:42,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:42,957 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2025-02-08 14:13:42,958 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:43,235 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2025-02-08 14:13:43,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865129275] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:43,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:43,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 18 [2025-02-08 14:13:43,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581154205] [2025-02-08 14:13:43,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:43,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 14:13:43,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:43,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 14:13:43,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2025-02-08 14:13:43,322 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 73 [2025-02-08 14:13:43,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 585 transitions, 7086 flow. Second operand has 19 states, 19 states have (on average 18.263157894736842) internal successors, (347), 19 states have internal predecessors, (347), 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 14:13:43,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:43,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 73 [2025-02-08 14:13:43,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:45,086 INFO L124 PetriNetUnfolderBase]: 3906/9915 cut-off events. [2025-02-08 14:13:45,086 INFO L125 PetriNetUnfolderBase]: For 34066/34066 co-relation queries the response was YES. [2025-02-08 14:13:45,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34502 conditions, 9915 events. 3906/9915 cut-off events. For 34066/34066 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 80194 event pairs, 312 based on Foata normal form. 120/10019 useless extension candidates. Maximal degree in co-relation 34445. Up to 4272 conditions per place. [2025-02-08 14:13:45,132 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 855 selfloop transitions, 44 changer transitions 77/981 dead transitions. [2025-02-08 14:13:45,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 981 transitions, 13558 flow [2025-02-08 14:13:45,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 14:13:45,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 14:13:45,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 269 transitions. [2025-02-08 14:13:45,134 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.33499377334993774 [2025-02-08 14:13:45,134 INFO L175 Difference]: Start difference. First operand has 197 places, 585 transitions, 7086 flow. Second operand 11 states and 269 transitions. [2025-02-08 14:13:45,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 981 transitions, 13558 flow [2025-02-08 14:13:45,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 981 transitions, 13496 flow, removed 14 selfloop flow, removed 15 redundant places. [2025-02-08 14:13:45,340 INFO L231 Difference]: Finished difference. Result has 191 places, 555 transitions, 6990 flow [2025-02-08 14:13:45,340 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=7002, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6990, PETRI_PLACES=191, PETRI_TRANSITIONS=555} [2025-02-08 14:13:45,341 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 122 predicate places. [2025-02-08 14:13:45,341 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 555 transitions, 6990 flow [2025-02-08 14:13:45,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 18.263157894736842) internal successors, (347), 19 states have internal predecessors, (347), 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 14:13:45,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:45,342 INFO L206 CegarLoopForPetriNet]: trace histogram [23, 23, 22, 1, 1, 1, 1] [2025-02-08 14:13:45,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-02-08 14:13:45,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:45,546 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:45,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:45,547 INFO L85 PathProgramCache]: Analyzing trace with hash 836982637, now seen corresponding path program 2 times [2025-02-08 14:13:45,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:45,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795323498] [2025-02-08 14:13:45,547 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:13:45,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:45,581 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-02-08 14:13:45,590 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 72 statements. [2025-02-08 14:13:45,590 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:13:45,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:45,622 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2025-02-08 14:13:45,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:45,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795323498] [2025-02-08 14:13:45,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795323498] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:45,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093132638] [2025-02-08 14:13:45,623 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:13:45,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:45,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:45,629 INFO L229 MonitoredProcess]: Starting monitored process 18 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 14:13:45,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-08 14:13:45,777 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-02-08 14:13:45,790 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 72 statements. [2025-02-08 14:13:45,790 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:13:45,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:45,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:13:45,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:45,856 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2025-02-08 14:13:45,856 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2025-02-08 14:13:45,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093132638] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:45,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:45,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-02-08 14:13:45,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367651517] [2025-02-08 14:13:45,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:45,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:13:45,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:45,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:13:45,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:13:45,942 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 73 [2025-02-08 14:13:45,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 555 transitions, 6990 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 14:13:45,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:45,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 73 [2025-02-08 14:13:45,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:46,592 INFO L124 PetriNetUnfolderBase]: 302/2975 cut-off events. [2025-02-08 14:13:46,592 INFO L125 PetriNetUnfolderBase]: For 23366/23366 co-relation queries the response was YES. [2025-02-08 14:13:46,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16543 conditions, 2975 events. 302/2975 cut-off events. For 23366/23366 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 24690 event pairs, 0 based on Foata normal form. 8/2983 useless extension candidates. Maximal degree in co-relation 16496. Up to 1643 conditions per place. [2025-02-08 14:13:46,609 INFO L140 encePairwiseOnDemand]: 64/73 looper letters, 222 selfloop transitions, 327 changer transitions 0/554 dead transitions. [2025-02-08 14:13:46,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 554 transitions, 8042 flow [2025-02-08 14:13:46,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:13:46,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:13:46,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 93 transitions. [2025-02-08 14:13:46,611 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2547945205479452 [2025-02-08 14:13:46,611 INFO L175 Difference]: Start difference. First operand has 191 places, 555 transitions, 6990 flow. Second operand 5 states and 93 transitions. [2025-02-08 14:13:46,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 554 transitions, 8042 flow [2025-02-08 14:13:46,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 554 transitions, 7924 flow, removed 0 selfloop flow, removed 9 redundant places. [2025-02-08 14:13:46,759 INFO L231 Difference]: Finished difference. Result has 149 places, 554 transitions, 7480 flow [2025-02-08 14:13:46,759 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=6826, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=327, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=7480, PETRI_PLACES=149, PETRI_TRANSITIONS=554} [2025-02-08 14:13:46,760 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 80 predicate places. [2025-02-08 14:13:46,760 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 554 transitions, 7480 flow [2025-02-08 14:13:46,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 14:13:46,760 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:46,760 INFO L206 CegarLoopForPetriNet]: trace histogram [23, 23, 22, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:46,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-02-08 14:13:46,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:46,961 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:46,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:46,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1741396264, now seen corresponding path program 1 times [2025-02-08 14:13:46,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:46,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799300638] [2025-02-08 14:13:46,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:46,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:46,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-08 14:13:46,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-08 14:13:46,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:46,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:48,022 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 759 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:13:48,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:48,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799300638] [2025-02-08 14:13:48,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799300638] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:48,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571966432] [2025-02-08 14:13:48,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:13:48,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:48,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:48,025 INFO L229 MonitoredProcess]: Starting monitored process 19 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 14:13:48,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-08 14:13:48,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-08 14:13:48,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-08 14:13:48,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:48,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:48,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-02-08 14:13:48,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:48,346 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 759 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:13:48,346 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:49,691 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 759 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:13:49,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571966432] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:49,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:49,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 95 [2025-02-08 14:13:49,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685419529] [2025-02-08 14:13:49,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:49,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-02-08 14:13:49,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:49,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-02-08 14:13:49,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2025-02-08 14:13:49,929 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 73 [2025-02-08 14:13:49,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 554 transitions, 7480 flow. Second operand has 96 states, 96 states have (on average 16.0625) internal successors, (1542), 96 states have internal predecessors, (1542), 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 14:13:49,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:49,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 73 [2025-02-08 14:13:49,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:53,761 INFO L124 PetriNetUnfolderBase]: 566/5759 cut-off events. [2025-02-08 14:13:53,761 INFO L125 PetriNetUnfolderBase]: For 189237/189237 co-relation queries the response was YES. [2025-02-08 14:13:53,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33112 conditions, 5759 events. 566/5759 cut-off events. For 189237/189237 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 48495 event pairs, 0 based on Foata normal form. 576/6335 useless extension candidates. Maximal degree in co-relation 33069. Up to 2162 conditions per place. [2025-02-08 14:13:53,781 INFO L140 encePairwiseOnDemand]: 59/73 looper letters, 56 selfloop transitions, 1021 changer transitions 0/1082 dead transitions. [2025-02-08 14:13:53,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 1082 transitions, 16978 flow [2025-02-08 14:13:53,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2025-02-08 14:13:53,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2025-02-08 14:13:53,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 1957 transitions. [2025-02-08 14:13:53,784 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.28519382104342755 [2025-02-08 14:13:53,784 INFO L175 Difference]: Start difference. First operand has 149 places, 554 transitions, 7480 flow. Second operand 94 states and 1957 transitions. [2025-02-08 14:13:53,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 1082 transitions, 16978 flow [2025-02-08 14:13:54,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 1082 transitions, 15652 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:13:54,072 INFO L231 Difference]: Finished difference. Result has 262 places, 1082 transitions, 16012 flow [2025-02-08 14:13:54,073 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=6826, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=513, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=94, PETRI_FLOW=16012, PETRI_PLACES=262, PETRI_TRANSITIONS=1082} [2025-02-08 14:13:54,073 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 193 predicate places. [2025-02-08 14:13:54,073 INFO L471 AbstractCegarLoop]: Abstraction has has 262 places, 1082 transitions, 16012 flow [2025-02-08 14:13:54,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 16.0625) internal successors, (1542), 96 states have internal predecessors, (1542), 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 14:13:54,074 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:54,074 INFO L206 CegarLoopForPetriNet]: trace histogram [47, 47, 46, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:54,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-02-08 14:13:54,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-02-08 14:13:54,278 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-08 14:13:54,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:54,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1824964520, now seen corresponding path program 2 times [2025-02-08 14:13:54,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:54,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72742989] [2025-02-08 14:13:54,279 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:13:54,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:54,311 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 147 statements into 2 equivalence classes. [2025-02-08 14:13:54,316 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 147 of 147 statements. [2025-02-08 14:13:54,316 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:13:54,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 3244 backedges. 1 proven. 92 refuted. 0 times theorem prover too weak. 3151 trivial. 0 not checked. [2025-02-08 14:13:54,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:54,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72742989] [2025-02-08 14:13:54,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72742989] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:54,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674019874] [2025-02-08 14:13:54,563 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:13:54,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:54,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:54,565 INFO L229 MonitoredProcess]: Starting monitored process 20 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 14:13:54,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-08 14:13:54,753 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 147 statements into 2 equivalence classes. [2025-02-08 14:13:54,853 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 147 of 147 statements. [2025-02-08 14:13:54,853 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:13:54,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:54,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:13:54,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:54,982 INFO L134 CoverageAnalysis]: Checked inductivity of 3244 backedges. 1 proven. 92 refuted. 0 times theorem prover too weak. 3151 trivial. 0 not checked. [2025-02-08 14:13:54,983 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:55,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3244 backedges. 1 proven. 92 refuted. 0 times theorem prover too weak. 3151 trivial. 0 not checked. [2025-02-08 14:13:55,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674019874] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:55,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:55,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-02-08 14:13:55,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788568035] [2025-02-08 14:13:55,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:55,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:13:55,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:55,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:13:55,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:13:55,129 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 73 [2025-02-08 14:13:55,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 1082 transitions, 16012 flow. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 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 14:13:55,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:55,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 73 [2025-02-08 14:13:55,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:56,783 INFO L124 PetriNetUnfolderBase]: 566/5735 cut-off events. [2025-02-08 14:13:56,783 INFO L125 PetriNetUnfolderBase]: For 72195/72195 co-relation queries the response was YES. [2025-02-08 14:13:56,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35865 conditions, 5735 events. 566/5735 cut-off events. For 72195/72195 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 48312 event pairs, 0 based on Foata normal form. 24/5759 useless extension candidates. Maximal degree in co-relation 35798. Up to 2162 conditions per place. [2025-02-08 14:13:56,820 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 0 selfloop transitions, 0 changer transitions 1081/1081 dead transitions. [2025-02-08 14:13:56,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 1081 transitions, 18070 flow [2025-02-08 14:13:56,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:13:56,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:13:56,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2025-02-08 14:13:56,821 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.25205479452054796 [2025-02-08 14:13:56,821 INFO L175 Difference]: Start difference. First operand has 262 places, 1082 transitions, 16012 flow. Second operand 5 states and 92 transitions. [2025-02-08 14:13:56,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 1081 transitions, 18070 flow [2025-02-08 14:13:57,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 1081 transitions, 14847 flow, removed 700 selfloop flow, removed 91 redundant places. [2025-02-08 14:13:57,511 INFO L231 Difference]: Finished difference. Result has 174 places, 0 transitions, 0 flow [2025-02-08 14:13:57,511 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=12695, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1081, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1081, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=174, PETRI_TRANSITIONS=0} [2025-02-08 14:13:57,511 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 105 predicate places. [2025-02-08 14:13:57,511 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 0 transitions, 0 flow [2025-02-08 14:13:57,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 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 14:13:57,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 37 remaining) [2025-02-08 14:13:57,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 37 remaining) [2025-02-08 14:13:57,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 37 remaining) [2025-02-08 14:13:57,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 37 remaining) [2025-02-08 14:13:57,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 37 remaining) [2025-02-08 14:13:57,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 37 remaining) [2025-02-08 14:13:57,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 37 remaining) [2025-02-08 14:13:57,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 37 remaining) [2025-02-08 14:13:57,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 37 remaining) [2025-02-08 14:13:57,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 37 remaining) [2025-02-08 14:13:57,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 37 remaining) [2025-02-08 14:13:57,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 37 remaining) [2025-02-08 14:13:57,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 37 remaining) [2025-02-08 14:13:57,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 37 remaining) [2025-02-08 14:13:57,516 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 37 remaining) [2025-02-08 14:13:57,516 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 37 remaining) [2025-02-08 14:13:57,516 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 37 remaining) [2025-02-08 14:13:57,516 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 37 remaining) [2025-02-08 14:13:57,516 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 37 remaining) [2025-02-08 14:13:57,516 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 37 remaining) [2025-02-08 14:13:57,516 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 37 remaining) [2025-02-08 14:13:57,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-02-08 14:13:57,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:57,717 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:57,721 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:13:57,721 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:13:57,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:13:57 BasicIcfg [2025-02-08 14:13:57,726 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:13:57,727 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:13:57,727 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:13:57,727 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:13:57,727 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:13:16" (3/4) ... [2025-02-08 14:13:57,728 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:13:57,730 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 14:13:57,730 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 14:13:57,730 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 14:13:57,741 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 195 nodes and edges [2025-02-08 14:13:57,743 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2025-02-08 14:13:57,743 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2025-02-08 14:13:57,743 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 14:13:57,824 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:13:57,824 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:13:57,824 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:13:57,825 INFO L158 Benchmark]: Toolchain (without parser) took 42725.43ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 111.6MB in the beginning and 723.7MB in the end (delta: -612.1MB). Peak memory consumption was 981.3MB. Max. memory is 16.1GB. [2025-02-08 14:13:57,825 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:13:57,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.55ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 98.1MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 14:13:57,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.18ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 94.9MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:13:57,827 INFO L158 Benchmark]: Boogie Preprocessor took 50.19ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 91.8MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:13:57,827 INFO L158 Benchmark]: IcfgBuilder took 967.62ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 96.6MB in the end (delta: -4.8MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. [2025-02-08 14:13:57,828 INFO L158 Benchmark]: TraceAbstraction took 41344.13ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 96.6MB in the beginning and 730.6MB in the end (delta: -634.0MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2025-02-08 14:13:57,828 INFO L158 Benchmark]: Witness Printer took 97.22ms. Allocated memory is still 1.7GB. Free memory was 730.6MB in the beginning and 723.7MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:13:57,829 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.55ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 98.1MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.18ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 94.9MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.19ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 91.8MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 967.62ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 96.6MB in the end (delta: -4.8MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. * TraceAbstraction took 41344.13ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 96.6MB in the beginning and 730.6MB in the end (delta: -634.0MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 97.22ms. Allocated memory is still 1.7GB. Free memory was 730.6MB in the beginning and 723.7MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 151]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 151]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 151]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 151]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 151]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 151]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 162]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 162]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 151]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 151]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 96 locations, 37 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 41.2s, OverallIterations: 28, TraceHistogramMax: 47, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 26.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3674 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3505 mSDsluCounter, 2342 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2279 mSDsCounter, 2259 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7237 IncrementalHoareTripleChecker+Invalid, 9496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2259 mSolverCounterUnsat, 63 mSDtfsCounter, 7237 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1599 GetRequests, 1144 SyntacticMatches, 12 SemanticMatches, 443 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6150 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16012occurred in iteration=27, InterpolantAutomatonStates: 329, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 1489 NumberOfCodeBlocks, 1209 NumberOfCodeBlocksAsserted, 57 NumberOfCheckSat, 2059 ConstructedInterpolants, 0 QuantifiedInterpolants, 8353 SizeOfPredicates, 90 NumberOfNonLiveVariables, 6083 ConjunctsInSsa, 185 ConjunctsInUnsatCore, 63 InterpolantComputations, 13 PerfectInterpolantSequences, 12855/16457 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:13:57,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE