./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc 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/safe019_power.oepc.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 e9fa0a1b11704376245a2fedbc5c4fb7e02255cba008bc8067c3e06529a17976 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:38:06,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:38:06,204 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:38:06,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:38:06,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:38:06,237 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:38:06,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:38:06,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:38:06,238 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:38:06,238 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:38:06,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:38:06,239 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:38:06,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:38:06,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:38:06,239 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:38:06,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:38:06,241 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:38:06,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:38:06,241 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:38:06,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:38:06,242 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:38:06,242 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:38:06,242 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:38:06,242 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:38:06,242 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 -> e9fa0a1b11704376245a2fedbc5c4fb7e02255cba008bc8067c3e06529a17976 [2025-02-06 18:38:06,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:38:06,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:38:06,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:38:06,504 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:38:06,505 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:38:06,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i [2025-02-06 18:38:07,760 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d24ee6894/83b164bf32514cc38ade5d709cffbf25/FLAG7499a604c [2025-02-06 18:38:08,094 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:38:08,096 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i [2025-02-06 18:38:08,113 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d24ee6894/83b164bf32514cc38ade5d709cffbf25/FLAG7499a604c [2025-02-06 18:38:08,130 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d24ee6894/83b164bf32514cc38ade5d709cffbf25 [2025-02-06 18:38:08,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:38:08,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:38:08,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:38:08,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:38:08,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:38:08,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64366ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08, skipping insertion in model container [2025-02-06 18:38:08,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,169 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:38:08,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:38:08,430 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:38:08,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:38:08,541 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:38:08,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08 WrapperNode [2025-02-06 18:38:08,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:38:08,544 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:38:08,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:38:08,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:38:08,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,585 INFO L138 Inliner]: procedures = 176, calls = 72, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 173 [2025-02-06 18:38:08,586 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:38:08,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:38:08,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:38:08,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:38:08,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,604 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,629 INFO L175 MemorySlicer]: Split 26 memory accesses to 2 slices as follows [24, 2]. 92 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [1, 2]. The 9 writes are split as follows [9, 0]. [2025-02-06 18:38:08,629 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,640 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,642 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:38:08,662 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:38:08,662 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:38:08,662 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:38:08,663 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08" (1/1) ... [2025-02-06 18:38:08,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:38:08,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:38:08,695 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) [2025-02-06 18:38:08,702 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 [2025-02-06 18:38:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:38:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:38:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:38:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:38:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 18:38:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:38:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 18:38:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 18:38:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 18:38:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 18:38:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 18:38:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 18:38:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 18:38:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 18:38:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:38:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:38:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 18:38:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:38:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:38:08,735 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:38:08,857 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:38:08,860 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:38:09,215 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:38:09,216 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:38:09,477 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:38:09,477 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:38:09,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:38:09 BoogieIcfgContainer [2025-02-06 18:38:09,478 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:38:09,480 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:38:09,480 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:38:09,483 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:38:09,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:38:08" (1/3) ... [2025-02-06 18:38:09,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2085e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:38:09, skipping insertion in model container [2025-02-06 18:38:09,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:38:08" (2/3) ... [2025-02-06 18:38:09,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2085e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:38:09, skipping insertion in model container [2025-02-06 18:38:09,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:38:09" (3/3) ... [2025-02-06 18:38:09,484 INFO L128 eAbstractionObserver]: Analyzing ICFG safe019_power.oepc.i [2025-02-06 18:38:09,494 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:38:09,496 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe019_power.oepc.i that has 5 procedures, 49 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2025-02-06 18:38:09,496 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:38:09,546 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 18:38:09,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 48 transitions, 112 flow [2025-02-06 18:38:09,628 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2025-02-06 18:38:09,630 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:38:09,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 0/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 113 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-02-06 18:38:09,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 48 transitions, 112 flow [2025-02-06 18:38:09,634 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 44 transitions, 100 flow [2025-02-06 18:38:09,642 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:38:09,650 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;@10b1995b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:38:09,650 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-02-06 18:38:09,656 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:38:09,656 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-02-06 18:38:09,656 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:38:09,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:38:09,657 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:38:09,657 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-06 18:38:09,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:38:09,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2097603193, now seen corresponding path program 1 times [2025-02-06 18:38:09,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:38:09,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187737815] [2025-02-06 18:38:09,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:38:09,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:38:09,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:38:09,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:38:09,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:38:09,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:38:09,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:38:09,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:38:09,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187737815] [2025-02-06 18:38:09,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187737815] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:38:09,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:38:09,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:38:09,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071647741] [2025-02-06 18:38:09,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:38:09,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:38:09,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:38:09,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:38:09,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:38:09,973 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 48 [2025-02-06 18:38:09,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2025-02-06 18:38:09,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:38:09,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 48 [2025-02-06 18:38:09,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:38:16,438 INFO L124 PetriNetUnfolderBase]: 54177/71593 cut-off events. [2025-02-06 18:38:16,438 INFO L125 PetriNetUnfolderBase]: For 328/328 co-relation queries the response was YES. [2025-02-06 18:38:16,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143879 conditions, 71593 events. 54177/71593 cut-off events. For 328/328 co-relation queries the response was YES. Maximal size of possible extension queue 2391. Compared 428310 event pairs, 18771 based on Foata normal form. 0/56958 useless extension candidates. Maximal degree in co-relation 143867. Up to 67461 conditions per place. [2025-02-06 18:38:16,886 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 61 selfloop transitions, 5 changer transitions 0/70 dead transitions. [2025-02-06 18:38:16,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 70 transitions, 293 flow [2025-02-06 18:38:16,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:38:16,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:38:16,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2025-02-06 18:38:16,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2025-02-06 18:38:16,896 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 100 flow. Second operand 3 states and 98 transitions. [2025-02-06 18:38:16,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 70 transitions, 293 flow [2025-02-06 18:38:16,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 70 transitions, 286 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 18:38:16,906 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 143 flow [2025-02-06 18:38:16,908 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2025-02-06 18:38:16,910 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2025-02-06 18:38:16,910 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 143 flow [2025-02-06 18:38:16,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2025-02-06 18:38:16,911 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:38:16,911 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:38:16,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:38:16,911 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-06 18:38:16,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:38:16,912 INFO L85 PathProgramCache]: Analyzing trace with hash -691553750, now seen corresponding path program 1 times [2025-02-06 18:38:16,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:38:16,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057647114] [2025-02-06 18:38:16,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:38:16,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:38:16,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:38:16,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:38:16,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:38:16,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:38:17,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:38:17,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:38:17,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057647114] [2025-02-06 18:38:17,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057647114] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:38:17,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:38:17,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:38:17,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327946513] [2025-02-06 18:38:17,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:38:17,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:38:17,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:38:17,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:38:17,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:38:17,075 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 48 [2025-02-06 18:38:17,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2025-02-06 18:38:17,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:38:17,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 48 [2025-02-06 18:38:17,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:38:22,275 INFO L124 PetriNetUnfolderBase]: 43035/58047 cut-off events. [2025-02-06 18:38:22,276 INFO L125 PetriNetUnfolderBase]: For 3264/3264 co-relation queries the response was YES. [2025-02-06 18:38:22,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133198 conditions, 58047 events. 43035/58047 cut-off events. For 3264/3264 co-relation queries the response was YES. Maximal size of possible extension queue 1897. Compared 356156 event pairs, 8197 based on Foata normal form. 0/49992 useless extension candidates. Maximal degree in co-relation 133187. Up to 27698 conditions per place. [2025-02-06 18:38:22,627 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 85 selfloop transitions, 13 changer transitions 0/102 dead transitions. [2025-02-06 18:38:22,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 102 transitions, 473 flow [2025-02-06 18:38:22,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:38:22,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:38:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2025-02-06 18:38:22,630 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6979166666666666 [2025-02-06 18:38:22,630 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 143 flow. Second operand 4 states and 134 transitions. [2025-02-06 18:38:22,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 102 transitions, 473 flow [2025-02-06 18:38:22,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 102 transitions, 468 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:38:22,635 INFO L231 Difference]: Finished difference. Result has 60 places, 56 transitions, 241 flow [2025-02-06 18:38:22,636 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=241, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2025-02-06 18:38:22,636 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2025-02-06 18:38:22,637 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 241 flow [2025-02-06 18:38:22,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2025-02-06 18:38:22,638 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:38:22,639 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:38:22,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:38:22,639 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-06 18:38:22,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:38:22,640 INFO L85 PathProgramCache]: Analyzing trace with hash -691553751, now seen corresponding path program 1 times [2025-02-06 18:38:22,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:38:22,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550743302] [2025-02-06 18:38:22,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:38:22,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:38:22,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:38:22,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:38:22,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:38:22,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:38:22,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:38:22,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:38:22,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550743302] [2025-02-06 18:38:22,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550743302] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:38:22,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:38:22,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:38:22,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360689044] [2025-02-06 18:38:22,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:38:22,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:38:22,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:38:22,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:38:22,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:38:22,800 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 48 [2025-02-06 18:38:22,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2025-02-06 18:38:22,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:38:22,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 48 [2025-02-06 18:38:22,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:38:25,668 INFO L124 PetriNetUnfolderBase]: 25093/33453 cut-off events. [2025-02-06 18:38:25,669 INFO L125 PetriNetUnfolderBase]: For 25544/25544 co-relation queries the response was YES. [2025-02-06 18:38:25,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83341 conditions, 33453 events. 25093/33453 cut-off events. For 25544/25544 co-relation queries the response was YES. Maximal size of possible extension queue 1047. Compared 188250 event pairs, 7039 based on Foata normal form. 3900/35574 useless extension candidates. Maximal degree in co-relation 83327. Up to 29320 conditions per place. [2025-02-06 18:38:25,794 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 61 selfloop transitions, 5 changer transitions 0/70 dead transitions. [2025-02-06 18:38:25,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 70 transitions, 367 flow [2025-02-06 18:38:25,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:38:25,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:38:25,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2025-02-06 18:38:25,795 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5104166666666666 [2025-02-06 18:38:25,796 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 241 flow. Second operand 4 states and 98 transitions. [2025-02-06 18:38:25,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 70 transitions, 367 flow [2025-02-06 18:38:26,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 70 transitions, 344 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-02-06 18:38:26,161 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 172 flow [2025-02-06 18:38:26,161 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2025-02-06 18:38:26,161 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2025-02-06 18:38:26,162 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 172 flow [2025-02-06 18:38:26,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2025-02-06 18:38:26,162 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:38:26,162 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] [2025-02-06 18:38:26,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:38:26,162 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-06 18:38:26,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:38:26,163 INFO L85 PathProgramCache]: Analyzing trace with hash 488377620, now seen corresponding path program 1 times [2025-02-06 18:38:26,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:38:26,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699898916] [2025-02-06 18:38:26,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:38:26,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:38:26,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 18:38:26,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 18:38:26,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:38:26,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:38:26,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:38:26,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:38:26,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699898916] [2025-02-06 18:38:26,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699898916] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:38:26,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:38:26,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:38:26,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858812989] [2025-02-06 18:38:26,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:38:26,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:38:26,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:38:26,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:38:26,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:38:26,271 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 48 [2025-02-06 18:38:26,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2025-02-06 18:38:26,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:38:26,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 48 [2025-02-06 18:38:26,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:38:29,247 INFO L124 PetriNetUnfolderBase]: 21205/28197 cut-off events. [2025-02-06 18:38:29,247 INFO L125 PetriNetUnfolderBase]: For 10724/10724 co-relation queries the response was YES. [2025-02-06 18:38:29,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66052 conditions, 28197 events. 21205/28197 cut-off events. For 10724/10724 co-relation queries the response was YES. Maximal size of possible extension queue 954. Compared 155125 event pairs, 3129 based on Foata normal form. 0/27954 useless extension candidates. Maximal degree in co-relation 66039. Up to 10016 conditions per place. [2025-02-06 18:38:29,346 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 99 selfloop transitions, 13 changer transitions 4/120 dead transitions. [2025-02-06 18:38:29,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 120 transitions, 576 flow [2025-02-06 18:38:29,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:38:29,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:38:29,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2025-02-06 18:38:29,347 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-06 18:38:29,347 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 172 flow. Second operand 5 states and 160 transitions. [2025-02-06 18:38:29,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 120 transitions, 576 flow [2025-02-06 18:38:29,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 120 transitions, 570 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:38:29,352 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 208 flow [2025-02-06 18:38:29,353 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=208, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2025-02-06 18:38:29,353 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2025-02-06 18:38:29,353 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 208 flow [2025-02-06 18:38:29,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2025-02-06 18:38:29,353 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:38:29,353 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, 1, 1, 1] [2025-02-06 18:38:29,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:38:29,354 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-06 18:38:29,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:38:29,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1656365260, now seen corresponding path program 1 times [2025-02-06 18:38:29,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:38:29,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672185440] [2025-02-06 18:38:29,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:38:29,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:38:29,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 18:38:29,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 18:38:29,375 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:38:29,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:38:29,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:38:29,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:38:29,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672185440] [2025-02-06 18:38:29,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672185440] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:38:29,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:38:29,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:38:29,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204912031] [2025-02-06 18:38:29,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:38:29,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:38:29,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:38:29,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:38:29,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:38:29,488 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 48 [2025-02-06 18:38:29,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2025-02-06 18:38:29,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:38:29,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 48 [2025-02-06 18:38:29,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:38:31,410 INFO L124 PetriNetUnfolderBase]: 20245/26901 cut-off events. [2025-02-06 18:38:31,411 INFO L125 PetriNetUnfolderBase]: For 19280/19280 co-relation queries the response was YES. [2025-02-06 18:38:31,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68377 conditions, 26901 events. 20245/26901 cut-off events. For 19280/19280 co-relation queries the response was YES. Maximal size of possible extension queue 954. Compared 148759 event pairs, 2961 based on Foata normal form. 224/27106 useless extension candidates. Maximal degree in co-relation 68363. Up to 10016 conditions per place. [2025-02-06 18:38:31,496 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 0 selfloop transitions, 0 changer transitions 112/112 dead transitions. [2025-02-06 18:38:31,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 112 transitions, 540 flow [2025-02-06 18:38:31,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:38:31,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:38:31,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 160 transitions. [2025-02-06 18:38:31,498 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2025-02-06 18:38:31,498 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 208 flow. Second operand 6 states and 160 transitions. [2025-02-06 18:38:31,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 112 transitions, 540 flow [2025-02-06 18:38:32,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 112 transitions, 485 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-06 18:38:32,025 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2025-02-06 18:38:32,025 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2025-02-06 18:38:32,029 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2025-02-06 18:38:32,029 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2025-02-06 18:38:32,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2025-02-06 18:38:32,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2025-02-06 18:38:32,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2025-02-06 18:38:32,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2025-02-06 18:38:32,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2025-02-06 18:38:32,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2025-02-06 18:38:32,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2025-02-06 18:38:32,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2025-02-06 18:38:32,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2025-02-06 18:38:32,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2025-02-06 18:38:32,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2025-02-06 18:38:32,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2025-02-06 18:38:32,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2025-02-06 18:38:32,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2025-02-06 18:38:32,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2025-02-06 18:38:32,034 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2025-02-06 18:38:32,034 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2025-02-06 18:38:32,034 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2025-02-06 18:38:32,034 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2025-02-06 18:38:32,034 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2025-02-06 18:38:32,034 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2025-02-06 18:38:32,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:38:32,034 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-02-06 18:38:32,040 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:38:32,040 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:38:32,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:38:32 BasicIcfg [2025-02-06 18:38:32,046 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:38:32,047 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:38:32,047 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:38:32,047 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:38:32,047 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:38:09" (3/4) ... [2025-02-06 18:38:32,048 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:38:32,050 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 18:38:32,050 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 18:38:32,050 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-06 18:38:32,050 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2025-02-06 18:38:32,056 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2025-02-06 18:38:32,056 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-02-06 18:38:32,056 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-02-06 18:38:32,056 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 18:38:32,114 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:38:32,115 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:38:32,115 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:38:32,115 INFO L158 Benchmark]: Toolchain (without parser) took 23981.39ms. Allocated memory was 167.8MB in the beginning and 9.4GB in the end (delta: 9.2GB). Free memory was 120.5MB in the beginning and 6.5GB in the end (delta: -6.4GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2025-02-06 18:38:32,116 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 218.1MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:38:32,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.13ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 95.4MB in the end (delta: 25.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 18:38:32,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.09ms. Allocated memory is still 167.8MB. Free memory was 95.4MB in the beginning and 92.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:38:32,116 INFO L158 Benchmark]: Boogie Preprocessor took 75.04ms. Allocated memory is still 167.8MB. Free memory was 92.7MB in the beginning and 88.4MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:38:32,116 INFO L158 Benchmark]: IcfgBuilder took 816.08ms. Allocated memory is still 167.8MB. Free memory was 88.4MB in the beginning and 62.4MB in the end (delta: 26.0MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2025-02-06 18:38:32,117 INFO L158 Benchmark]: TraceAbstraction took 22566.63ms. Allocated memory was 167.8MB in the beginning and 9.4GB in the end (delta: 9.2GB). Free memory was 62.4MB in the beginning and 6.6GB in the end (delta: -6.5GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2025-02-06 18:38:32,117 INFO L158 Benchmark]: Witness Printer took 68.24ms. Allocated memory is still 9.4GB. Free memory was 6.6GB in the beginning and 6.5GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:38:32,118 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 218.1MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.13ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 95.4MB in the end (delta: 25.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.09ms. Allocated memory is still 167.8MB. Free memory was 95.4MB in the beginning and 92.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 75.04ms. Allocated memory is still 167.8MB. Free memory was 92.7MB in the beginning and 88.4MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 816.08ms. Allocated memory is still 167.8MB. Free memory was 88.4MB in the beginning and 62.4MB in the end (delta: 26.0MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * TraceAbstraction took 22566.63ms. Allocated memory was 167.8MB in the beginning and 9.4GB in the end (delta: 9.2GB). Free memory was 62.4MB in the beginning and 6.6GB in the end (delta: -6.5GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. * Witness Printer took 68.24ms. Allocated memory is still 9.4GB. Free memory was 6.6GB in the beginning and 6.5GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: 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 9 procedures, 87 locations, 20 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: 22.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 305 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 305 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 556 IncrementalHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 0 mSDtfsCounter, 556 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=241occurred in iteration=2, InterpolantAutomatonStates: 22, 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 18:38:32,134 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