./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 3edc5a2d9ce2881b3565fd36253c94b9cf356a0dafd043fa3f9d27823541c09b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 23:53:27,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 23:53:27,167 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 23:53:27,172 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 23:53:27,174 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 23:53:27,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 23:53:27,196 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 23:53:27,197 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 23:53:27,197 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 23:53:27,198 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 23:53:27,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 23:53:27,199 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 23:53:27,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 23:53:27,200 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 23:53:27,200 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 23:53:27,201 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 23:53:27,204 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 23:53:27,204 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 23:53:27,204 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 23:53:27,204 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 23:53:27,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 23:53:27,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 23:53:27,205 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 23:53:27,205 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 23:53:27,205 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 23:53:27,206 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 23:53:27,206 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 23:53:27,206 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 23:53:27,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 23:53:27,206 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 23:53:27,206 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 23:53:27,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 23:53:27,207 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 23:53:27,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 23:53:27,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:53:27,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 23:53:27,207 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 23:53:27,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 23:53:27,208 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 23:53:27,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 23:53:27,210 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 23:53:27,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 23:53:27,211 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 23:53:27,211 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 23:53:27,211 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3edc5a2d9ce2881b3565fd36253c94b9cf356a0dafd043fa3f9d27823541c09b [2024-10-11 23:53:27,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 23:53:27,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 23:53:27,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 23:53:27,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 23:53:27,443 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 23:53:27,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i [2024-10-11 23:53:28,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 23:53:29,206 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 23:53:29,207 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i [2024-10-11 23:53:29,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5a443ee12/41b26ae939e9459d9142d5c22d17ed83/FLAG0e0c4b7fd [2024-10-11 23:53:29,459 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5a443ee12/41b26ae939e9459d9142d5c22d17ed83 [2024-10-11 23:53:29,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 23:53:29,462 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 23:53:29,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 23:53:29,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 23:53:29,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 23:53:29,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:53:29" (1/1) ... [2024-10-11 23:53:29,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ddf823e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:29, skipping insertion in model container [2024-10-11 23:53:29,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:53:29" (1/1) ... [2024-10-11 23:53:29,554 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 23:53:30,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:53:30,204 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 23:53:30,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:53:30,416 INFO L204 MainTranslator]: Completed translation [2024-10-11 23:53:30,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30 WrapperNode [2024-10-11 23:53:30,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 23:53:30,418 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 23:53:30,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 23:53:30,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 23:53:30,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30" (1/1) ... [2024-10-11 23:53:30,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30" (1/1) ... [2024-10-11 23:53:30,473 INFO L138 Inliner]: procedures = 176, calls = 73, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 185 [2024-10-11 23:53:30,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 23:53:30,475 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 23:53:30,475 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 23:53:30,475 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 23:53:30,483 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30" (1/1) ... [2024-10-11 23:53:30,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30" (1/1) ... [2024-10-11 23:53:30,492 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30" (1/1) ... [2024-10-11 23:53:30,512 INFO L175 MemorySlicer]: Split 26 memory accesses to 2 slices as follows [2, 24]. 92 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 8 writes are split as follows [0, 8]. [2024-10-11 23:53:30,512 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30" (1/1) ... [2024-10-11 23:53:30,512 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30" (1/1) ... [2024-10-11 23:53:30,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30" (1/1) ... [2024-10-11 23:53:30,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30" (1/1) ... [2024-10-11 23:53:30,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30" (1/1) ... [2024-10-11 23:53:30,524 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30" (1/1) ... [2024-10-11 23:53:30,526 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 23:53:30,527 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 23:53:30,527 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 23:53:30,527 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 23:53:30,528 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30" (1/1) ... [2024-10-11 23:53:30,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:53:30,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:53:30,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 23:53:30,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 23:53:30,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 23:53:30,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 23:53:30,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 23:53:30,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 23:53:30,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 23:53:30,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 23:53:30,593 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 23:53:30,593 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 23:53:30,593 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 23:53:30,593 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 23:53:30,593 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 23:53:30,594 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 23:53:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-11 23:53:30,594 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-11 23:53:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 23:53:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 23:53:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 23:53:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 23:53:30,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 23:53:30,596 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 23:53:30,708 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 23:53:30,710 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 23:53:31,157 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 23:53:31,158 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 23:53:31,496 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 23:53:31,496 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 23:53:31,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:53:31 BoogieIcfgContainer [2024-10-11 23:53:31,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 23:53:31,499 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 23:53:31,499 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 23:53:31,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 23:53:31,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:53:29" (1/3) ... [2024-10-11 23:53:31,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33269b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:53:31, skipping insertion in model container [2024-10-11 23:53:31,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:53:30" (2/3) ... [2024-10-11 23:53:31,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33269b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:53:31, skipping insertion in model container [2024-10-11 23:53:31,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:53:31" (3/3) ... [2024-10-11 23:53:31,505 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_power.opt.i [2024-10-11 23:53:31,520 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 23:53:31,520 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-11 23:53:31,520 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 23:53:31,596 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 23:53:31,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 48 transitions, 112 flow [2024-10-11 23:53:31,650 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2024-10-11 23:53:31,651 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:53:31,653 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 118 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. [2024-10-11 23:53:31,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 48 transitions, 112 flow [2024-10-11 23:53:31,656 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 44 transitions, 100 flow [2024-10-11 23:53:31,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:53:31,679 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;@c514d33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:53:31,680 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-11 23:53:31,689 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 23:53:31,692 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-10-11 23:53:31,692 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:53:31,692 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:53:31,693 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:53:31,693 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-11 23:53:31,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:53:31,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1746845848, now seen corresponding path program 1 times [2024-10-11 23:53:31,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:53:31,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144688364] [2024-10-11 23:53:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:53:31,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:53:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:53:32,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:53:32,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:53:32,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144688364] [2024-10-11 23:53:32,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144688364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:53:32,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:53:32,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 23:53:32,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579554529] [2024-10-11 23:53:32,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:53:32,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:53:32,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:53:32,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:53:32,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:53:32,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 48 [2024-10-11 23:53:32,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2024-10-11 23:53:32,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:53:32,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 48 [2024-10-11 23:53:32,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:53:37,764 INFO L124 PetriNetUnfolderBase]: 26747/35721 cut-off events. [2024-10-11 23:53:37,764 INFO L125 PetriNetUnfolderBase]: For 226/226 co-relation queries the response was YES. [2024-10-11 23:53:37,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71853 conditions, 35721 events. 26747/35721 cut-off events. For 226/226 co-relation queries the response was YES. Maximal size of possible extension queue 1770. Compared 223291 event pairs, 10799 based on Foata normal form. 0/26589 useless extension candidates. Maximal degree in co-relation 71841. Up to 34817 conditions per place. [2024-10-11 23:53:38,002 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 51 selfloop transitions, 5 changer transitions 0/65 dead transitions. [2024-10-11 23:53:38,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 65 transitions, 263 flow [2024-10-11 23:53:38,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:53:38,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 23:53:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-10-11 23:53:38,013 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7152777777777778 [2024-10-11 23:53:38,014 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 100 flow. Second operand 3 states and 103 transitions. [2024-10-11 23:53:38,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 65 transitions, 263 flow [2024-10-11 23:53:38,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 65 transitions, 256 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 23:53:38,028 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 143 flow [2024-10-11 23:53:38,029 INFO L260 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} [2024-10-11 23:53:38,033 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-10-11 23:53:38,034 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 143 flow [2024-10-11 23:53:38,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2024-10-11 23:53:38,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:53:38,035 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:53:38,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 23:53:38,035 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-11 23:53:38,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:53:38,036 INFO L85 PathProgramCache]: Analyzing trace with hash 657201671, now seen corresponding path program 1 times [2024-10-11 23:53:38,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:53:38,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333836561] [2024-10-11 23:53:38,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:53:38,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:53:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:53:38,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:53:38,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:53:38,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333836561] [2024-10-11 23:53:38,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333836561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:53:38,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:53:38,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:53:38,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434645819] [2024-10-11 23:53:38,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:53:38,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:53:38,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:53:38,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:53:38,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:53:38,222 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 48 [2024-10-11 23:53:38,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-10-11 23:53:38,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:53:38,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 48 [2024-10-11 23:53:38,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:53:41,416 INFO L124 PetriNetUnfolderBase]: 15045/20239 cut-off events. [2024-10-11 23:53:41,416 INFO L125 PetriNetUnfolderBase]: For 1524/1524 co-relation queries the response was YES. [2024-10-11 23:53:41,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47728 conditions, 20239 events. 15045/20239 cut-off events. For 1524/1524 co-relation queries the response was YES. Maximal size of possible extension queue 962. Compared 120265 event pairs, 5129 based on Foata normal form. 0/17109 useless extension candidates. Maximal degree in co-relation 47717. Up to 19334 conditions per place. [2024-10-11 23:53:41,500 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 47 selfloop transitions, 5 changer transitions 0/61 dead transitions. [2024-10-11 23:53:41,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 61 transitions, 271 flow [2024-10-11 23:53:41,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:53:41,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:53:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2024-10-11 23:53:41,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5625 [2024-10-11 23:53:41,503 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 143 flow. Second operand 4 states and 108 transitions. [2024-10-11 23:53:41,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 61 transitions, 271 flow [2024-10-11 23:53:41,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 61 transitions, 266 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:53:41,505 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 132 flow [2024-10-11 23:53:41,509 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2024-10-11 23:53:41,514 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-10-11 23:53:41,514 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 132 flow [2024-10-11 23:53:41,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-10-11 23:53:41,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:53:41,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:53:41,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 23:53:41,514 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-11 23:53:41,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:53:41,515 INFO L85 PathProgramCache]: Analyzing trace with hash 657201672, now seen corresponding path program 1 times [2024-10-11 23:53:41,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:53:41,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143742177] [2024-10-11 23:53:41,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:53:41,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:53:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:53:41,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:53:41,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:53:41,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143742177] [2024-10-11 23:53:41,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143742177] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:53:41,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:53:41,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:53:41,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529897221] [2024-10-11 23:53:41,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:53:41,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:53:41,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:53:41,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:53:41,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:53:41,702 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 48 [2024-10-11 23:53:41,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-10-11 23:53:41,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:53:41,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 48 [2024-10-11 23:53:41,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:53:44,237 INFO L124 PetriNetUnfolderBase]: 10523/14337 cut-off events. [2024-10-11 23:53:44,238 INFO L125 PetriNetUnfolderBase]: For 2114/2114 co-relation queries the response was YES. [2024-10-11 23:53:44,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33105 conditions, 14337 events. 10523/14337 cut-off events. For 2114/2114 co-relation queries the response was YES. Maximal size of possible extension queue 621. Compared 81585 event pairs, 1819 based on Foata normal form. 0/13059 useless extension candidates. Maximal degree in co-relation 33093. Up to 10509 conditions per place. [2024-10-11 23:53:44,342 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 66 selfloop transitions, 9 changer transitions 0/84 dead transitions. [2024-10-11 23:53:44,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 84 transitions, 380 flow [2024-10-11 23:53:44,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:53:44,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:53:44,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2024-10-11 23:53:44,346 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6822916666666666 [2024-10-11 23:53:44,346 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 132 flow. Second operand 4 states and 131 transitions. [2024-10-11 23:53:44,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 84 transitions, 380 flow [2024-10-11 23:53:44,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 84 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:53:44,350 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 184 flow [2024-10-11 23:53:44,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2024-10-11 23:53:44,351 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-10-11 23:53:44,351 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 184 flow [2024-10-11 23:53:44,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-10-11 23:53:44,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:53:44,352 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:53:44,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 23:53:44,352 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-11 23:53:44,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:53:44,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1361916694, now seen corresponding path program 1 times [2024-10-11 23:53:44,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:53:44,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027481558] [2024-10-11 23:53:44,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:53:44,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:53:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:53:44,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:53:44,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:53:44,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027481558] [2024-10-11 23:53:44,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027481558] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:53:44,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:53:44,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:53:44,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127268396] [2024-10-11 23:53:44,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:53:44,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 23:53:44,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:53:44,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 23:53:44,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:53:44,511 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 48 [2024-10-11 23:53:44,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 184 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-10-11 23:53:44,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:53:44,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 48 [2024-10-11 23:53:44,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:53:46,336 INFO L124 PetriNetUnfolderBase]: 8027/10953 cut-off events. [2024-10-11 23:53:46,336 INFO L125 PetriNetUnfolderBase]: For 5214/5214 co-relation queries the response was YES. [2024-10-11 23:53:46,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28456 conditions, 10953 events. 8027/10953 cut-off events. For 5214/5214 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 60744 event pairs, 695 based on Foata normal form. 0/10707 useless extension candidates. Maximal degree in co-relation 28443. Up to 3828 conditions per place. [2024-10-11 23:53:46,426 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 79 selfloop transitions, 13 changer transitions 4/105 dead transitions. [2024-10-11 23:53:46,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 105 transitions, 518 flow [2024-10-11 23:53:46,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:53:46,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 23:53:46,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 165 transitions. [2024-10-11 23:53:46,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-10-11 23:53:46,433 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 184 flow. Second operand 5 states and 165 transitions. [2024-10-11 23:53:46,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 105 transitions, 518 flow [2024-10-11 23:53:46,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 105 transitions, 500 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-11 23:53:46,438 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 208 flow [2024-10-11 23:53:46,438 INFO L260 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} [2024-10-11 23:53:46,439 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2024-10-11 23:53:46,439 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 208 flow [2024-10-11 23:53:46,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-10-11 23:53:46,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:53:46,439 INFO L204 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] [2024-10-11 23:53:46,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 23:53:46,440 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-11 23:53:46,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:53:46,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1768235501, now seen corresponding path program 1 times [2024-10-11 23:53:46,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:53:46,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804528954] [2024-10-11 23:53:46,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:53:46,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:53:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:53:46,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:53:46,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:53:46,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804528954] [2024-10-11 23:53:46,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804528954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:53:46,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:53:46,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 23:53:46,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850852879] [2024-10-11 23:53:46,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:53:46,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:53:46,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:53:46,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:53:46,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 23:53:46,661 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 48 [2024-10-11 23:53:46,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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) [2024-10-11 23:53:46,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:53:46,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 48 [2024-10-11 23:53:46,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:53:48,600 INFO L124 PetriNetUnfolderBase]: 7211/9849 cut-off events. [2024-10-11 23:53:48,604 INFO L125 PetriNetUnfolderBase]: For 8910/8910 co-relation queries the response was YES. [2024-10-11 23:53:48,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26423 conditions, 9849 events. 7211/9849 cut-off events. For 8910/8910 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 55584 event pairs, 551 based on Foata normal form. 192/9987 useless extension candidates. Maximal degree in co-relation 26409. Up to 3828 conditions per place. [2024-10-11 23:53:48,658 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 0 selfloop transitions, 0 changer transitions 97/97 dead transitions. [2024-10-11 23:53:48,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 97 transitions, 470 flow [2024-10-11 23:53:48,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 23:53:48,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 23:53:48,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2024-10-11 23:53:48,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5902777777777778 [2024-10-11 23:53:48,660 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 208 flow. Second operand 6 states and 170 transitions. [2024-10-11 23:53:48,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 97 transitions, 470 flow [2024-10-11 23:53:48,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 97 transitions, 415 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-11 23:53:48,860 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2024-10-11 23:53:48,861 INFO L260 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} [2024-10-11 23:53:48,862 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-10-11 23:53:48,862 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2024-10-11 23:53:48,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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) [2024-10-11 23:53:48,867 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2024-10-11 23:53:48,867 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2024-10-11 23:53:48,872 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2024-10-11 23:53:48,872 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2024-10-11 23:53:48,872 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2024-10-11 23:53:48,872 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2024-10-11 23:53:48,872 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2024-10-11 23:53:48,873 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2024-10-11 23:53:48,873 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2024-10-11 23:53:48,873 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2024-10-11 23:53:48,873 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2024-10-11 23:53:48,873 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2024-10-11 23:53:48,873 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2024-10-11 23:53:48,873 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2024-10-11 23:53:48,873 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2024-10-11 23:53:48,873 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2024-10-11 23:53:48,873 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2024-10-11 23:53:48,873 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2024-10-11 23:53:48,874 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2024-10-11 23:53:48,874 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2024-10-11 23:53:48,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 23:53:48,874 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-11 23:53:48,893 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 23:53:48,893 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 23:53:48,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 11:53:48 BasicIcfg [2024-10-11 23:53:48,902 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 23:53:48,903 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 23:53:48,907 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 23:53:48,907 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 23:53:48,908 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:53:31" (3/4) ... [2024-10-11 23:53:48,909 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 23:53:48,912 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-11 23:53:48,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-11 23:53:48,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-11 23:53:48,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-10-11 23:53:48,928 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 80 nodes and edges [2024-10-11 23:53:48,928 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-11 23:53:48,932 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 23:53:48,932 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 23:53:49,057 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 23:53:49,058 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 23:53:49,058 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 23:53:49,059 INFO L158 Benchmark]: Toolchain (without parser) took 19596.85ms. Allocated memory was 190.8MB in the beginning and 11.0GB in the end (delta: 10.8GB). Free memory was 120.8MB in the beginning and 10.4GB in the end (delta: -10.2GB). Peak memory consumption was 578.4MB. Max. memory is 16.1GB. [2024-10-11 23:53:49,059 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 190.8MB. Free memory is still 148.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 23:53:49,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 952.44ms. Allocated memory is still 190.8MB. Free memory was 120.8MB in the beginning and 154.4MB in the end (delta: -33.5MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2024-10-11 23:53:49,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.92ms. Allocated memory is still 190.8MB. Free memory was 154.4MB in the beginning and 151.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 23:53:49,059 INFO L158 Benchmark]: Boogie Preprocessor took 52.09ms. Allocated memory is still 190.8MB. Free memory was 151.4MB in the beginning and 146.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 23:53:49,060 INFO L158 Benchmark]: RCFGBuilder took 969.63ms. Allocated memory is still 190.8MB. Free memory was 146.0MB in the beginning and 115.0MB in the end (delta: 31.1MB). Peak memory consumption was 94.9MB. Max. memory is 16.1GB. [2024-10-11 23:53:49,060 INFO L158 Benchmark]: TraceAbstraction took 17403.89ms. Allocated memory was 190.8MB in the beginning and 11.0GB in the end (delta: 10.8GB). Free memory was 113.9MB in the beginning and 10.4GB in the end (delta: -10.2GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-10-11 23:53:49,060 INFO L158 Benchmark]: Witness Printer took 154.98ms. Allocated memory is still 11.0GB. Free memory was 10.4GB in the beginning and 10.4GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 23:53:49,061 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 190.8MB. Free memory is still 148.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 952.44ms. Allocated memory is still 190.8MB. Free memory was 120.8MB in the beginning and 154.4MB in the end (delta: -33.5MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.92ms. Allocated memory is still 190.8MB. Free memory was 154.4MB in the beginning and 151.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.09ms. Allocated memory is still 190.8MB. Free memory was 151.4MB in the beginning and 146.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 969.63ms. Allocated memory is still 190.8MB. Free memory was 146.0MB in the beginning and 115.0MB in the end (delta: 31.1MB). Peak memory consumption was 94.9MB. Max. memory is 16.1GB. * TraceAbstraction took 17403.89ms. Allocated memory was 190.8MB in the beginning and 11.0GB in the end (delta: 10.8GB). Free memory was 113.9MB in the beginning and 10.4GB in the end (delta: -10.2GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 154.98ms. Allocated memory is still 11.0GB. Free memory was 10.4GB in the beginning and 10.4GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 852]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 852]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 869]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 869]: 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: 17.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 270 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 260 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 486 IncrementalHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 2 mSDtfsCounter, 486 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=208occurred in iteration=4, 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, 0.2s SatisfiabilityAnalysisTime, 0.9s 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 23:53:49,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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