./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/safe034_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 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/pthread-wmm/safe034_tso.i -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 f95cec1ef19619129f583fb8c66d7deea9b3c11be41d52b59a1e2cd5f199d72e --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:40:07,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:40:08,027 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:40:08,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:40:08,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:40:08,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:40:08,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:40:08,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:40:08,052 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:40:08,052 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:40:08,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:40:08,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:40:08,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:40:08,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:40:08,053 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:40:08,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:40:08,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:40:08,054 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:40:08,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:40:08,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:40:08,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:40:08,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:40:08,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:40:08,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:40:08,054 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:40:08,054 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:40:08,055 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:40:08,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:40:08,055 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:40:08,055 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:40:08,055 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:40:08,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:40:08,055 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:40:08,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:40:08,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:40:08,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:40:08,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:40:08,055 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:40:08,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:40:08,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:40:08,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:40:08,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:40:08,056 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:40:08,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:40:08,056 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:40:08,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:40:08,056 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:40:08,056 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:40:08,056 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:40:08,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:40:08,056 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 -> f95cec1ef19619129f583fb8c66d7deea9b3c11be41d52b59a1e2cd5f199d72e [2025-01-10 06:40:08,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:40:08,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:40:08,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:40:08,278 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:40:08,278 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:40:08,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe034_tso.i [2025-01-10 06:40:09,420 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4b9a38157/4760ca20c706434883a33bb7496d2d97/FLAG486490ca7 [2025-01-10 06:40:09,753 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:40:09,753 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe034_tso.i [2025-01-10 06:40:09,773 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4b9a38157/4760ca20c706434883a33bb7496d2d97/FLAG486490ca7 [2025-01-10 06:40:09,997 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4b9a38157/4760ca20c706434883a33bb7496d2d97 [2025-01-10 06:40:09,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:40:10,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:40:10,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:40:10,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:40:10,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:40:10,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:40:09" (1/1) ... [2025-01-10 06:40:10,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b4c7b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10, skipping insertion in model container [2025-01-10 06:40:10,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:40:09" (1/1) ... [2025-01-10 06:40:10,027 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:40:10,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:40:10,293 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:40:10,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:40:10,360 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:40:10,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10 WrapperNode [2025-01-10 06:40:10,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:40:10,361 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:40:10,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:40:10,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:40:10,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,392 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-01-10 06:40:10,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:40:10,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:40:10,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:40:10,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:40:10,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,401 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,414 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-10 06:40:10,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,418 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,423 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,427 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:40:10,427 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:40:10,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:40:10,427 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:40:10,429 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:40:10,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:40:10,464 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) [2025-01-10 06:40:10,466 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 [2025-01-10 06:40:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 06:40:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:40:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-01-10 06:40:10,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-01-10 06:40:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-01-10 06:40:10,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-01-10 06:40:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-01-10 06:40:10,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-01-10 06:40:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:40:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 06:40:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:40:10,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:40:10,485 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:40:10,595 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:40:10,596 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:40:10,731 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:40:10,731 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:40:10,799 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:40:10,799 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:40:10,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:40:10 BoogieIcfgContainer [2025-01-10 06:40:10,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:40:10,802 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:40:10,802 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:40:10,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:40:10,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:40:09" (1/3) ... [2025-01-10 06:40:10,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab3eab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:40:10, skipping insertion in model container [2025-01-10 06:40:10,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10" (2/3) ... [2025-01-10 06:40:10,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab3eab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:40:10, skipping insertion in model container [2025-01-10 06:40:10,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:40:10" (3/3) ... [2025-01-10 06:40:10,807 INFO L128 eAbstractionObserver]: Analyzing ICFG safe034_tso.i [2025-01-10 06:40:10,818 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:40:10,820 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe034_tso.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-01-10 06:40:10,820 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:40:10,868 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-10 06:40:10,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 94 flow [2025-01-10 06:40:10,915 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2025-01-10 06:40:10,917 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:40:10,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 96 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-01-10 06:40:10,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 94 flow [2025-01-10 06:40:10,921 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 38 transitions, 85 flow [2025-01-10 06:40:10,927 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:40:10,935 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;@16acb6b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:40:10,936 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-01-10 06:40:10,944 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:40:10,945 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2025-01-10 06:40:10,945 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:40:10,945 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:40:10,945 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:40:10,946 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:40:10,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:40:10,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1674592727, now seen corresponding path program 1 times [2025-01-10 06:40:10,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:40:10,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860739393] [2025-01-10 06:40:10,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:40:10,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:40:11,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 06:40:11,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 06:40:11,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:40:11,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:40:11,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:40:11,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:40:11,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860739393] [2025-01-10 06:40:11,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860739393] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:40:11,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:40:11,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:40:11,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957462938] [2025-01-10 06:40:11,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:40:11,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:40:11,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:40:11,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:40:11,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:40:11,167 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 41 [2025-01-10 06:40:11,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 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) [2025-01-10 06:40:11,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:40:11,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 41 [2025-01-10 06:40:11,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:40:11,398 INFO L124 PetriNetUnfolderBase]: 842/1296 cut-off events. [2025-01-10 06:40:11,399 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-01-10 06:40:11,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2622 conditions, 1296 events. 842/1296 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 7239 event pairs, 420 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 2611. Up to 1271 conditions per place. [2025-01-10 06:40:11,414 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 27 selfloop transitions, 4 changer transitions 0/48 dead transitions. [2025-01-10 06:40:11,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 173 flow [2025-01-10 06:40:11,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:40:11,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:40:11,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2025-01-10 06:40:11,425 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7886178861788617 [2025-01-10 06:40:11,426 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 85 flow. Second operand 3 states and 97 transitions. [2025-01-10 06:40:11,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 173 flow [2025-01-10 06:40:11,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 48 transitions, 168 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:40:11,434 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 118 flow [2025-01-10 06:40:11,436 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2025-01-10 06:40:11,440 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2025-01-10 06:40:11,441 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 118 flow [2025-01-10 06:40:11,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 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) [2025-01-10 06:40:11,442 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:40:11,442 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:40:11,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:40:11,442 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:40:11,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:40:11,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2042823681, now seen corresponding path program 1 times [2025-01-10 06:40:11,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:40:11,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883225325] [2025-01-10 06:40:11,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:40:11,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:40:11,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 06:40:11,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 06:40:11,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:40:11,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:40:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:40:11,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:40:11,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883225325] [2025-01-10 06:40:11,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883225325] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:40:11,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:40:11,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:40:11,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097453902] [2025-01-10 06:40:11,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:40:11,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:40:11,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:40:11,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:40:11,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:40:11,539 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 41 [2025-01-10 06:40:11,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2025-01-10 06:40:11,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:40:11,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 41 [2025-01-10 06:40:11,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:40:11,659 INFO L124 PetriNetUnfolderBase]: 476/754 cut-off events. [2025-01-10 06:40:11,660 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2025-01-10 06:40:11,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1870 conditions, 754 events. 476/754 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 3815 event pairs, 212 based on Foata normal form. 0/592 useless extension candidates. Maximal degree in co-relation 1859. Up to 728 conditions per place. [2025-01-10 06:40:11,665 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 24 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2025-01-10 06:40:11,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 45 transitions, 180 flow [2025-01-10 06:40:11,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:40:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:40:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2025-01-10 06:40:11,667 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.676829268292683 [2025-01-10 06:40:11,667 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 118 flow. Second operand 4 states and 111 transitions. [2025-01-10 06:40:11,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 45 transitions, 180 flow [2025-01-10 06:40:11,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 45 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:40:11,668 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 110 flow [2025-01-10 06:40:11,668 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2025-01-10 06:40:11,668 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2025-01-10 06:40:11,668 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 110 flow [2025-01-10 06:40:11,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2025-01-10 06:40:11,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:40:11,670 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:40:11,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:40:11,670 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:40:11,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:40:11,672 INFO L85 PathProgramCache]: Analyzing trace with hash 2042823682, now seen corresponding path program 1 times [2025-01-10 06:40:11,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:40:11,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95306032] [2025-01-10 06:40:11,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:40:11,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:40:11,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 06:40:11,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 06:40:11,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:40:11,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:40:11,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:40:11,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:40:11,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95306032] [2025-01-10 06:40:11,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95306032] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:40:11,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:40:11,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:40:11,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236815045] [2025-01-10 06:40:11,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:40:11,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:40:11,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:40:11,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:40:11,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:40:11,732 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 41 [2025-01-10 06:40:11,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2025-01-10 06:40:11,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:40:11,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 41 [2025-01-10 06:40:11,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:40:11,816 INFO L124 PetriNetUnfolderBase]: 302/500 cut-off events. [2025-01-10 06:40:11,817 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2025-01-10 06:40:11,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1203 conditions, 500 events. 302/500 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2262 event pairs, 40 based on Foata normal form. 0/442 useless extension candidates. Maximal degree in co-relation 1191. Up to 409 conditions per place. [2025-01-10 06:40:11,819 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 29 selfloop transitions, 7 changer transitions 3/56 dead transitions. [2025-01-10 06:40:11,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 236 flow [2025-01-10 06:40:11,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:40:11,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:40:11,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2025-01-10 06:40:11,823 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7439024390243902 [2025-01-10 06:40:11,823 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 110 flow. Second operand 4 states and 122 transitions. [2025-01-10 06:40:11,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 236 flow [2025-01-10 06:40:11,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 56 transitions, 231 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:40:11,826 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 131 flow [2025-01-10 06:40:11,826 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2025-01-10 06:40:11,827 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2025-01-10 06:40:11,827 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 131 flow [2025-01-10 06:40:11,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2025-01-10 06:40:11,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:40:11,827 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, 1] [2025-01-10 06:40:11,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:40:11,827 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:40:11,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:40:11,828 INFO L85 PathProgramCache]: Analyzing trace with hash 311465648, now seen corresponding path program 1 times [2025-01-10 06:40:11,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:40:11,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735827874] [2025-01-10 06:40:11,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:40:11,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:40:11,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-10 06:40:11,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-10 06:40:11,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:40:11,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:40:11,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:40:11,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:40:11,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735827874] [2025-01-10 06:40:11,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735827874] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:40:11,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:40:11,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:40:11,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772925746] [2025-01-10 06:40:11,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:40:11,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:40:11,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:40:11,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:40:11,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:40:11,927 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 41 [2025-01-10 06:40:11,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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) [2025-01-10 06:40:11,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:40:11,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 41 [2025-01-10 06:40:11,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:40:11,996 INFO L124 PetriNetUnfolderBase]: 130/248 cut-off events. [2025-01-10 06:40:11,996 INFO L125 PetriNetUnfolderBase]: For 264/264 co-relation queries the response was YES. [2025-01-10 06:40:11,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 248 events. 130/248 cut-off events. For 264/264 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1072 event pairs, 0 based on Foata normal form. 48/286 useless extension candidates. Maximal degree in co-relation 721. Up to 156 conditions per place. [2025-01-10 06:40:11,997 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2025-01-10 06:40:11,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 50 transitions, 215 flow [2025-01-10 06:40:11,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:40:11,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:40:11,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 136 transitions. [2025-01-10 06:40:11,999 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6634146341463415 [2025-01-10 06:40:12,000 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 131 flow. Second operand 5 states and 136 transitions. [2025-01-10 06:40:12,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 50 transitions, 215 flow [2025-01-10 06:40:12,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 191 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-01-10 06:40:12,002 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2025-01-10 06:40:12,002 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2025-01-10 06:40:12,002 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2025-01-10 06:40:12,003 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2025-01-10 06:40:12,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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) [2025-01-10 06:40:12,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2025-01-10 06:40:12,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-01-10 06:40:12,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-01-10 06:40:12,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-01-10 06:40:12,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-01-10 06:40:12,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-01-10 06:40:12,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2025-01-10 06:40:12,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2025-01-10 06:40:12,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2025-01-10 06:40:12,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-01-10 06:40:12,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-01-10 06:40:12,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-01-10 06:40:12,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-01-10 06:40:12,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-01-10 06:40:12,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-01-10 06:40:12,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:40:12,009 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-10 06:40:12,014 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:40:12,014 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:40:12,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:40:12 BasicIcfg [2025-01-10 06:40:12,019 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:40:12,020 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:40:12,020 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:40:12,020 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:40:12,020 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:40:10" (3/4) ... [2025-01-10 06:40:12,022 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:40:12,024 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2025-01-10 06:40:12,024 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2025-01-10 06:40:12,024 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2025-01-10 06:40:12,027 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2025-01-10 06:40:12,027 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-01-10 06:40:12,027 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-10 06:40:12,027 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-10 06:40:12,075 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:40:12,075 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:40:12,076 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:40:12,076 INFO L158 Benchmark]: Toolchain (without parser) took 2076.62ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 110.7MB in the beginning and 313.2MB in the end (delta: -202.5MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2025-01-10 06:40:12,076 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:40:12,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.59ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 90.8MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 06:40:12,077 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.82ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 89.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:40:12,077 INFO L158 Benchmark]: Boogie Preprocessor took 32.99ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 87.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:40:12,077 INFO L158 Benchmark]: RCFGBuilder took 372.84ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 66.1MB in the end (delta: 21.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 06:40:12,077 INFO L158 Benchmark]: TraceAbstraction took 1217.82ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 65.7MB in the beginning and 318.5MB in the end (delta: -252.8MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2025-01-10 06:40:12,078 INFO L158 Benchmark]: Witness Printer took 55.72ms. Allocated memory is still 352.3MB. Free memory was 318.5MB in the beginning and 313.2MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:40:12,081 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.59ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 90.8MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.82ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 89.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.99ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 87.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 372.84ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 66.1MB in the end (delta: 21.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1217.82ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 65.7MB in the beginning and 318.5MB in the end (delta: -252.8MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * Witness Printer took 55.72ms. Allocated memory is still 352.3MB. Free memory was 318.5MB in the beginning and 313.2MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 735]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 735]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: 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, 74 locations, 15 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: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 194 IncrementalHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 0 mSDtfsCounter, 194 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=3, InterpolantAutomatonStates: 16, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 06:40:12,095 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