./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/sumt6.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/sumt6.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5189fb62 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReachWitnessValidation.xml -i ../sv-benchmarks/c/loops-crafted-1/sumt6.c ../results/automizer-verification-files/SV-COMP24_unreach-call/sumt6.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 05:17:50,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 05:17:50,621 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-13 05:17:50,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 05:17:50,625 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 05:17:50,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 05:17:50,660 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 05:17:50,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 05:17:50,661 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 05:17:50,662 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 05:17:50,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 05:17:50,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 05:17:50,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 05:17:50,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 05:17:50,666 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 05:17:50,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 05:17:50,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 05:17:50,667 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 05:17:50,667 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 05:17:50,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 05:17:50,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 05:17:50,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 05:17:50,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 05:17:50,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 05:17:50,672 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 05:17:50,672 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 05:17:50,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 05:17:50,673 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 05:17:50,673 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 05:17:50,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 05:17:50,674 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 05:17:50,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 05:17:50,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:17:50,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 05:17:50,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 05:17:50,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 05:17:50,675 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 05:17:50,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 05:17:50,675 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 05:17:50,675 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 05:17:50,676 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 05:17:50,676 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 05:17:50,676 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/certificate-witnesses-artifact/automizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 05:17:50,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 05:17:50,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 05:17:50,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 05:17:50,942 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 05:17:50,943 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 05:17:50,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops-crafted-1/sumt6.c [2024-09-13 05:17:52,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 05:17:52,549 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 05:17:52,550 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/sumt6.c [2024-09-13 05:17:52,557 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/f07ef71a7/40406a3b1ee141c9b58540363f6833b0/FLAGe48607d4b [2024-09-13 05:17:52,574 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/f07ef71a7/40406a3b1ee141c9b58540363f6833b0 [2024-09-13 05:17:52,577 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 05:17:52,578 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 05:17:52,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/sumt6.yml/witness-2.1.yml [2024-09-13 05:17:52,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 05:17:52,630 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-13 05:17:52,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 05:17:52,633 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 05:17:52,638 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 05:17:52,638 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:17:52" (1/2) ... [2024-09-13 05:17:52,639 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fac399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:17:52, skipping insertion in model container [2024-09-13 05:17:52,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:17:52" (1/2) ... [2024-09-13 05:17:52,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6efb64fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:17:52, skipping insertion in model container [2024-09-13 05:17:52,641 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:17:52" (2/2) ... [2024-09-13 05:17:52,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fac399 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52, skipping insertion in model container [2024-09-13 05:17:52,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:17:52" (2/2) ... [2024-09-13 05:17:52,648 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 05:17:52,648 INFO L1541 ArrayList]: Loop invariant at [L21-L36] (((((((i + k) + j) + v3) + v2) + v4) % 4294967296) == (l % 4294967296)) [2024-09-13 05:17:52,648 INFO L1541 ArrayList]: Function contract at [L8]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-13 05:17:52,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 05:17:52,862 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/sumt6.c[403,416] [2024-09-13 05:17:52,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:17:52,900 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-13 05:17:52,939 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/sumt6.c[403,416] Start Parsing Local [2024-09-13 05:17:52,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:17:52,972 INFO L204 MainTranslator]: Completed translation [2024-09-13 05:17:52,973 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52 WrapperNode [2024-09-13 05:17:52,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 05:17:52,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-13 05:17:52,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-13 05:17:52,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-13 05:17:52,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52" (1/1) ... [2024-09-13 05:17:52,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52" (1/1) ... [2024-09-13 05:17:53,012 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2024-09-13 05:17:53,013 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-13 05:17:53,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 05:17:53,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 05:17:53,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 05:17:53,025 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52" (1/1) ... [2024-09-13 05:17:53,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52" (1/1) ... [2024-09-13 05:17:53,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52" (1/1) ... [2024-09-13 05:17:53,047 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-09-13 05:17:53,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52" (1/1) ... [2024-09-13 05:17:53,047 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52" (1/1) ... [2024-09-13 05:17:53,054 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52" (1/1) ... [2024-09-13 05:17:53,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52" (1/1) ... [2024-09-13 05:17:53,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52" (1/1) ... [2024-09-13 05:17:53,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52" (1/1) ... [2024-09-13 05:17:53,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 05:17:53,061 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 05:17:53,061 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 05:17:53,062 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 05:17:53,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52" (1/1) ... [2024-09-13 05:17:53,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:17:53,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:17:53,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-13 05:17:53,090 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-13 05:17:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 05:17:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 05:17:53,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-13 05:17:53,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 05:17:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 05:17:53,194 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 05:17:53,196 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 05:17:53,358 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-09-13 05:17:53,359 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 05:17:53,391 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 05:17:53,391 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-13 05:17:53,392 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:17:53 BoogieIcfgContainer [2024-09-13 05:17:53,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 05:17:53,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-13 05:17:53,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-13 05:17:53,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-13 05:17:53,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 05:17:52" (1/4) ... [2024-09-13 05:17:53,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7384edf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 05:17:53, skipping insertion in model container [2024-09-13 05:17:53,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:17:52" (2/4) ... [2024-09-13 05:17:53,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7384edf3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 05:17:53, skipping insertion in model container [2024-09-13 05:17:53,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:17:52" (3/4) ... [2024-09-13 05:17:53,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7384edf3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 05:17:53, skipping insertion in model container [2024-09-13 05:17:53,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:17:53" (4/4) ... [2024-09-13 05:17:53,401 INFO L112 eAbstractionObserver]: Analyzing ICFG sumt6.c [2024-09-13 05:17:53,416 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-13 05:17:53,417 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-13 05:17:53,456 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-13 05:17:53,462 INFO L336 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=None, 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;@77813190, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-13 05:17:53,462 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-13 05:17:53,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 16 states have (on average 1.8125) internal successors, (29), 20 states have internal predecessors, (29), 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) [2024-09-13 05:17:53,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-09-13 05:17:53,470 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:17:53,470 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-09-13 05:17:53,471 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:17:53,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:17:53,475 INFO L85 PathProgramCache]: Analyzing trace with hash 94404, now seen corresponding path program 1 times [2024-09-13 05:17:53,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:17:53,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415703471] [2024-09-13 05:17:53,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:17:53,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:17:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:17:54,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:17:54,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:17:54,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415703471] [2024-09-13 05:17:54,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415703471] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:17:54,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:17:54,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-13 05:17:54,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075675915] [2024-09-13 05:17:54,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:17:54,021 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-13 05:17:54,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:17:54,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-13 05:17:54,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:17:54,048 INFO L87 Difference]: Start difference. First operand has 21 states, 16 states have (on average 1.8125) internal successors, (29), 20 states have internal predecessors, (29), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-09-13 05:17:54,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:17:54,111 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2024-09-13 05:17:54,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-13 05:17:54,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2024-09-13 05:17:54,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:17:54,122 INFO L225 Difference]: With dead ends: 26 [2024-09-13 05:17:54,122 INFO L226 Difference]: Without dead ends: 23 [2024-09-13 05:17:54,124 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:17:54,127 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:17:54,128 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 27 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:17:54,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-13 05:17:54,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2024-09-13 05:17:54,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 21 states have internal predecessors, (28), 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) [2024-09-13 05:17:54,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2024-09-13 05:17:54,158 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 3 [2024-09-13 05:17:54,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:17:54,159 INFO L474 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2024-09-13 05:17:54,159 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-09-13 05:17:54,160 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2024-09-13 05:17:54,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-09-13 05:17:54,160 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:17:54,161 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-09-13 05:17:54,161 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-13 05:17:54,162 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:17:54,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:17:54,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1482530996, now seen corresponding path program 1 times [2024-09-13 05:17:54,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:17:54,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969239007] [2024-09-13 05:17:54,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:17:54,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:17:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:17:54,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:17:54,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:17:54,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969239007] [2024-09-13 05:17:54,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969239007] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:17:54,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:17:54,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 05:17:54,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133455202] [2024-09-13 05:17:54,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:17:54,356 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 05:17:54,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:17:54,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 05:17:54,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:17:54,358 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-09-13 05:17:54,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:17:54,477 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2024-09-13 05:17:54,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 05:17:54,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) Word has length 6 [2024-09-13 05:17:54,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:17:54,478 INFO L225 Difference]: With dead ends: 20 [2024-09-13 05:17:54,478 INFO L226 Difference]: Without dead ends: 19 [2024-09-13 05:17:54,479 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:17:54,480 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 05:17:54,481 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 12 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 05:17:54,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-09-13 05:17:54,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-09-13 05:17:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 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) [2024-09-13 05:17:54,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2024-09-13 05:17:54,487 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 6 [2024-09-13 05:17:54,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:17:54,487 INFO L474 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2024-09-13 05:17:54,487 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-09-13 05:17:54,488 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2024-09-13 05:17:54,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-13 05:17:54,488 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:17:54,488 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:17:54,488 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-13 05:17:54,489 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:17:54,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:17:54,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1286211908, now seen corresponding path program 1 times [2024-09-13 05:17:54,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:17:54,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328434495] [2024-09-13 05:17:54,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:17:54,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:17:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:17:54,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:17:54,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:17:54,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328434495] [2024-09-13 05:17:54,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328434495] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 05:17:54,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682291752] [2024-09-13 05:17:54,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:17:54,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 05:17:54,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:17:54,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 05:17:54,848 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-13 05:17:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:17:54,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-13 05:17:54,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 05:17:55,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:17:55,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 05:17:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-13 05:17:55,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682291752] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-13 05:17:55,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-13 05:17:55,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3, 3] total 6 [2024-09-13 05:17:55,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967445535] [2024-09-13 05:17:55,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:17:55,178 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 05:17:55,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:17:55,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 05:17:55,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-13 05:17:55,179 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-09-13 05:17:55,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:17:55,389 INFO L93 Difference]: Finished difference Result 18 states and 24 transitions. [2024-09-13 05:17:55,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 05:17:55,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2024-09-13 05:17:55,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:17:55,392 INFO L225 Difference]: With dead ends: 18 [2024-09-13 05:17:55,392 INFO L226 Difference]: Without dead ends: 18 [2024-09-13 05:17:55,393 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-13 05:17:55,394 INFO L434 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 05:17:55,396 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 11 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 05:17:55,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-09-13 05:17:55,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-09-13 05:17:55,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 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) [2024-09-13 05:17:55,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2024-09-13 05:17:55,400 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 24 transitions. Word has length 7 [2024-09-13 05:17:55,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:17:55,402 INFO L474 AbstractCegarLoop]: Abstraction has 18 states and 24 transitions. [2024-09-13 05:17:55,402 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-09-13 05:17:55,402 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2024-09-13 05:17:55,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-13 05:17:55,402 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:17:55,402 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:17:55,421 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-13 05:17:55,603 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 05:17:55,603 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:17:55,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:17:55,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1216857807, now seen corresponding path program 1 times [2024-09-13 05:17:55,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:17:55,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525924161] [2024-09-13 05:17:55,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:17:55,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:17:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:17:55,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:17:55,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:17:55,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525924161] [2024-09-13 05:17:55,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525924161] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:17:55,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:17:55,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 05:17:55,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415209340] [2024-09-13 05:17:55,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:17:55,637 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-13 05:17:55,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:17:55,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-13 05:17:55,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:17:55,639 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-09-13 05:17:55,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:17:55,644 INFO L93 Difference]: Finished difference Result 16 states and 22 transitions. [2024-09-13 05:17:55,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-13 05:17:55,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2024-09-13 05:17:55,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:17:55,646 INFO L225 Difference]: With dead ends: 16 [2024-09-13 05:17:55,646 INFO L226 Difference]: Without dead ends: 0 [2024-09-13 05:17:55,646 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:17:55,648 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:17:55,649 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:17:55,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-13 05:17:55,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-13 05:17:55,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-09-13 05:17:55,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-13 05:17:55,650 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2024-09-13 05:17:55,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:17:55,650 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-13 05:17:55,650 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-09-13 05:17:55,650 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-13 05:17:55,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-13 05:17:55,654 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-13 05:17:55,655 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION (2 of 4 remaining) [2024-09-13 05:17:55,655 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-09-13 05:17:55,655 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONPOST_CONDITION (0 of 4 remaining) [2024-09-13 05:17:55,655 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-13 05:17:55,659 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-09-13 05:17:55,662 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-13 05:17:55,664 INFO L469 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-09-13 05:17:55,664 INFO L470 ceAbstractionStarter]: WitnessConsidered=1 [2024-09-13 05:17:55,665 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 05:17:55 BoogieIcfgContainer [2024-09-13 05:17:55,665 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-13 05:17:55,666 INFO L158 Benchmark]: Toolchain (without parser) took 3035.85ms. Allocated memory is still 157.3MB. Free memory was 87.3MB in the beginning and 88.0MB in the end (delta: -713.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:17:55,666 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:17:55,666 INFO L158 Benchmark]: Witness Parser took 0.71ms. Allocated memory is still 157.3MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:17:55,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.70ms. Allocated memory is still 157.3MB. Free memory was 87.1MB in the beginning and 119.4MB in the end (delta: -32.2MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2024-09-13 05:17:55,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.39ms. Allocated memory is still 157.3MB. Free memory was 118.9MB in the beginning and 117.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 05:17:55,667 INFO L158 Benchmark]: Boogie Preprocessor took 46.77ms. Allocated memory is still 157.3MB. Free memory was 117.2MB in the beginning and 115.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 05:17:55,667 INFO L158 Benchmark]: RCFGBuilder took 330.99ms. Allocated memory is still 157.3MB. Free memory was 115.7MB in the beginning and 101.0MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-13 05:17:55,667 INFO L158 Benchmark]: TraceAbstraction took 2271.24ms. Allocated memory is still 157.3MB. Free memory was 100.5MB in the beginning and 88.0MB in the end (delta: 12.5MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2024-09-13 05:17:55,670 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.71ms. Allocated memory is still 157.3MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.70ms. Allocated memory is still 157.3MB. Free memory was 87.1MB in the beginning and 119.4MB in the end (delta: -32.2MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.39ms. Allocated memory is still 157.3MB. Free memory was 118.9MB in the beginning and 117.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.77ms. Allocated memory is still 157.3MB. Free memory was 117.2MB in the beginning and 115.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 330.99ms. Allocated memory is still 157.3MB. Free memory was 115.7MB in the beginning and 101.0MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2271.24ms. Allocated memory is still 157.3MB. Free memory was 100.5MB in the beginning and 88.0MB in the end (delta: 12.5MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 8]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 10]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 8]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 83 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 47 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=1, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 468 SizeOfPredicates, 0 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 1/3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-13 05:17:55,698 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/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