./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_valuebound1.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version de325976 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/nla-digbench-scaling/lcm2_valuebound1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_valuebound1.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-tmp.dk.referee-eval-de32597-m [2024-09-17 19:49:45,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-17 19:49:45,904 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-17 19:49:45,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-17 19:49:45,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-17 19:49:45,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-17 19:49:45,933 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-17 19:49:45,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-17 19:49:45,934 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-17 19:49:45,934 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-17 19:49:45,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-17 19:49:45,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-17 19:49:45,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-17 19:49:45,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-17 19:49:45,936 INFO L153 SettingsManager]: * Use SBE=true [2024-09-17 19:49:45,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-17 19:49:45,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-17 19:49:45,939 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-17 19:49:45,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-17 19:49:45,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-17 19:49:45,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-17 19:49:45,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-17 19:49:45,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-17 19:49:45,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-17 19:49:45,940 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-17 19:49:45,940 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-17 19:49:45,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-17 19:49:45,941 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-17 19:49:45,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-17 19:49:45,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-17 19:49:45,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-17 19:49:45,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-17 19:49:45,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:49:45,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-17 19:49:45,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-17 19:49:45,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-17 19:49:45,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-17 19:49:45,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-17 19:49:45,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-17 19:49:45,943 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-17 19:49:45,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-17 19:49:45,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-17 19:49:45,944 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-17 19:49:46,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-17 19:49:46,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-17 19:49:46,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-17 19:49:46,154 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-17 19:49:46,154 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-17 19:49:46,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_valuebound1.yml/witness-2.1.yml [2024-09-17 19:49:46,223 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-17 19:49:46,223 INFO L274 PluginConnector]: CDTParser initialized [2024-09-17 19:49:46,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c [2024-09-17 19:49:47,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-17 19:49:47,519 INFO L384 CDTParser]: Found 1 translation units. [2024-09-17 19:49:47,520 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c [2024-09-17 19:49:47,526 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/f8984ec61/23bbe4b2b6e94847978550df6670b36e/FLAG3a61ff534 [2024-09-17 19:49:47,946 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/f8984ec61/23bbe4b2b6e94847978550df6670b36e [2024-09-17 19:49:47,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-17 19:49:47,947 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-17 19:49:47,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-17 19:49:47,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-17 19:49:47,952 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-17 19:49:47,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:49:46" (1/2) ... [2024-09-17 19:49:47,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c83a7 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.09 07:49:47, skipping insertion in model container [2024-09-17 19:49:47,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:49:46" (1/2) ... [2024-09-17 19:49:47,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7301a3be and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.09 07:49:47, skipping insertion in model container [2024-09-17 19:49:47,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:49:47" (2/2) ... [2024-09-17 19:49:47,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c83a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:47, skipping insertion in model container [2024-09-17 19:49:47,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:49:47" (2/2) ... [2024-09-17 19:49:47,959 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-17 19:49:47,960 INFO L1541 ArrayList]: Loop invariant at [L37-L50] ((((((a == v) && (b == y)) && (b == u)) && (y == 1)) && (x == 1)) && (a == x)) [2024-09-17 19:49:47,960 INFO L1541 ArrayList]: Function contract at [L11]: requires (\old(cond) == 1), ensures (\old(cond) == 1) [2024-09-17 19:49:47,960 INFO L1541 ArrayList]: Function contract at [L8]: requires null, ensures (\old(cond) != 0) [2024-09-17 19:49:47,972 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-17 19:49:48,082 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c[537,550] [2024-09-17 19:49:48,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:49:48,100 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-17 19:49:48,137 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c[537,550] Start Parsing Local [2024-09-17 19:49:48,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:49:48,162 INFO L204 MainTranslator]: Completed translation [2024-09-17 19:49:48,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48 WrapperNode [2024-09-17 19:49:48,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-17 19:49:48,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-17 19:49:48,164 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-17 19:49:48,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-17 19:49:48,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48" (1/1) ... [2024-09-17 19:49:48,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48" (1/1) ... [2024-09-17 19:49:48,249 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-09-17 19:49:48,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-17 19:49:48,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-17 19:49:48,252 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-17 19:49:48,252 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-17 19:49:48,260 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48" (1/1) ... [2024-09-17 19:49:48,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48" (1/1) ... [2024-09-17 19:49:48,262 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48" (1/1) ... [2024-09-17 19:49:48,267 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure assume_abort_if_not is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-17 19:49:48,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48" (1/1) ... [2024-09-17 19:49:48,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48" (1/1) ... [2024-09-17 19:49:48,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48" (1/1) ... [2024-09-17 19:49:48,271 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48" (1/1) ... [2024-09-17 19:49:48,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48" (1/1) ... [2024-09-17 19:49:48,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48" (1/1) ... [2024-09-17 19:49:48,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-17 19:49:48,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-17 19:49:48,274 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-17 19:49:48,274 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-17 19:49:48,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48" (1/1) ... [2024-09-17 19:49:48,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:49:48,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:49:48,300 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) [2024-09-17 19:49:48,301 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 [2024-09-17 19:49:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-17 19:49:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-17 19:49:48,331 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-17 19:49:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-17 19:49:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-17 19:49:48,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-17 19:49:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-17 19:49:48,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-17 19:49:48,382 INFO L242 CfgBuilder]: Building ICFG [2024-09-17 19:49:48,383 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-17 19:49:48,526 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-17 19:49:48,546 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-09-17 19:49:48,546 INFO L291 CfgBuilder]: Performing block encoding [2024-09-17 19:49:48,561 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-17 19:49:48,561 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-17 19:49:48,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:49:48 BoogieIcfgContainer [2024-09-17 19:49:48,562 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-17 19:49:48,567 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-17 19:49:48,567 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-17 19:49:48,570 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-17 19:49:48,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:49:46" (1/4) ... [2024-09-17 19:49:48,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad2f4ee and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 17.09 07:49:48, skipping insertion in model container [2024-09-17 19:49:48,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 07:49:47" (2/4) ... [2024-09-17 19:49:48,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad2f4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 07:49:48, skipping insertion in model container [2024-09-17 19:49:48,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:49:48" (3/4) ... [2024-09-17 19:49:48,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad2f4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 07:49:48, skipping insertion in model container [2024-09-17 19:49:48,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:49:48" (4/4) ... [2024-09-17 19:49:48,575 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm2_valuebound1.c [2024-09-17 19:49:48,589 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-17 19:49:48,589 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-09-17 19:49:48,628 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-17 19:49:48,635 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;@207c91d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-17 19:49:48,635 INFO L337 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-09-17 19:49:48,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 17 states have (on average 1.588235294117647) internal successors, (27), 21 states have internal predecessors, (27), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-17 19:49:48,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-09-17 19:49:48,642 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:49:48,642 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-09-17 19:49:48,643 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 3 more)] === [2024-09-17 19:49:48,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:49:48,647 INFO L85 PathProgramCache]: Analyzing trace with hash 107291455, now seen corresponding path program 1 times [2024-09-17 19:49:48,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:49:48,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182309010] [2024-09-17 19:49:48,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:49:48,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:49:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-17 19:49:48,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:49:48,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182309010] [2024-09-17 19:49:48,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182309010] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-17 19:49:48,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-17 19:49:48,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-17 19:49:48,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158785442] [2024-09-17 19:49:48,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-17 19:49:48,806 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-17 19:49:48,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:49:48,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-17 19:49:48,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-17 19:49:48,826 INFO L87 Difference]: Start difference. First operand has 32 states, 17 states have (on average 1.588235294117647) internal successors, (27), 21 states have internal predecessors, (27), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-17 19:49:48,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:49:48,883 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2024-09-17 19:49:48,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-17 19:49:48,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-09-17 19:49:48,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:49:48,890 INFO L225 Difference]: With dead ends: 31 [2024-09-17 19:49:48,890 INFO L226 Difference]: Without dead ends: 29 [2024-09-17 19:49:48,891 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 [2024-09-17 19:49:48,895 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-17 19:49:48,896 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 67 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-17 19:49:48,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-09-17 19:49:48,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-09-17 19:49:48,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-17 19:49:48,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2024-09-17 19:49:48,918 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 5 [2024-09-17 19:49:48,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:49:48,918 INFO L474 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2024-09-17 19:49:48,918 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-17 19:49:48,918 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-09-17 19:49:48,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-17 19:49:48,919 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:49:48,920 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:49:48,920 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-17 19:49:48,920 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 3 more)] === [2024-09-17 19:49:48,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:49:48,920 INFO L85 PathProgramCache]: Analyzing trace with hash -768939130, now seen corresponding path program 1 times [2024-09-17 19:49:48,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:49:48,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333575670] [2024-09-17 19:49:48,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:49:48,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:49:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:50,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-17 19:49:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:50,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-17 19:49:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:50,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-17 19:49:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:50,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-17 19:49:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:50,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-17 19:49:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:50,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-17 19:49:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:50,295 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-17 19:49:50,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:49:50,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333575670] [2024-09-17 19:49:50,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333575670] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:49:50,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673376705] [2024-09-17 19:49:50,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:49:50,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:49:50,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:49:50,299 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) [2024-09-17 19:49:50,301 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-17 19:49:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:50,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-17 19:49:50,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:49:50,474 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-17 19:49:50,475 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:49:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-17 19:49:50,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673376705] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:49:50,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:49:50,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 12 [2024-09-17 19:49:50,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434064287] [2024-09-17 19:49:50,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:49:50,691 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-17 19:49:50,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:49:50,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-17 19:49:50,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-09-17 19:49:50,692 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 13 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 6 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-17 19:49:50,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:49:50,798 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-09-17 19:49:50,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-17 19:49:50,798 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 6 states have call predecessors, (9), 7 states have call successors, (9) Word has length 34 [2024-09-17 19:49:50,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:49:50,799 INFO L225 Difference]: With dead ends: 27 [2024-09-17 19:49:50,799 INFO L226 Difference]: Without dead ends: 27 [2024-09-17 19:49:50,800 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-09-17 19:49:50,801 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 10 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-17 19:49:50,801 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 93 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-17 19:49:50,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-09-17 19:49:50,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2024-09-17 19:49:50,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-17 19:49:50,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2024-09-17 19:49:50,804 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 34 [2024-09-17 19:49:50,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:49:50,806 INFO L474 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-09-17 19:49:50,806 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 6 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-17 19:49:50,806 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-09-17 19:49:50,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-17 19:49:50,807 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:49:50,807 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:49:50,819 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-17 19:49:51,010 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:49:51,011 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 3 more)] === [2024-09-17 19:49:51,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:49:51,011 INFO L85 PathProgramCache]: Analyzing trace with hash -493168233, now seen corresponding path program 1 times [2024-09-17 19:49:51,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:49:51,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048856220] [2024-09-17 19:49:51,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:49:51,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:49:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-17 19:49:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-17 19:49:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-17 19:49:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-17 19:49:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-17 19:49:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-17 19:49:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,058 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-17 19:49:51,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:49:51,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048856220] [2024-09-17 19:49:51,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048856220] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-17 19:49:51,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-17 19:49:51,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-17 19:49:51,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826380739] [2024-09-17 19:49:51,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-17 19:49:51,062 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-17 19:49:51,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:49:51,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-17 19:49:51,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-17 19:49:51,063 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-17 19:49:51,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:49:51,071 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2024-09-17 19:49:51,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-17 19:49:51,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39 [2024-09-17 19:49:51,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:49:51,072 INFO L225 Difference]: With dead ends: 23 [2024-09-17 19:49:51,072 INFO L226 Difference]: Without dead ends: 23 [2024-09-17 19:49:51,073 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-17 19:49:51,073 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-17 19:49:51,073 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-17 19:49:51,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-17 19:49:51,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-09-17 19:49:51,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-17 19:49:51,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2024-09-17 19:49:51,080 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 39 [2024-09-17 19:49:51,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:49:51,080 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2024-09-17 19:49:51,080 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-17 19:49:51,080 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2024-09-17 19:49:51,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-17 19:49:51,081 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:49:51,081 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:49:51,081 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-17 19:49:51,081 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 3 more)] === [2024-09-17 19:49:51,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:49:51,082 INFO L85 PathProgramCache]: Analyzing trace with hash -493168072, now seen corresponding path program 1 times [2024-09-17 19:49:51,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:49:51,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006501629] [2024-09-17 19:49:51,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:49:51,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:49:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-17 19:49:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-17 19:49:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-17 19:49:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-17 19:49:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-17 19:49:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-17 19:49:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:49:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-17 19:49:51,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:49:51,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006501629] [2024-09-17 19:49:51,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006501629] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-17 19:49:51,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-17 19:49:51,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-17 19:49:51,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995222058] [2024-09-17 19:49:51,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-17 19:49:51,117 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-17 19:49:51,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:49:51,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-17 19:49:51,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-17 19:49:51,118 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-17 19:49:51,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:49:51,128 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2024-09-17 19:49:51,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-17 19:49:51,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39 [2024-09-17 19:49:51,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:49:51,129 INFO L225 Difference]: With dead ends: 22 [2024-09-17 19:49:51,129 INFO L226 Difference]: Without dead ends: 0 [2024-09-17 19:49:51,129 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-17 19:49:51,129 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-17 19:49:51,130 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 43 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-17 19:49:51,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-17 19:49:51,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-17 19:49:51,131 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) [2024-09-17 19:49:51,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-17 19:49:51,131 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2024-09-17 19:49:51,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:49:51,131 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-17 19:49:51,131 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-17 19:49:51,131 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-17 19:49:51,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-17 19:49:51,133 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-09-17 19:49:51,134 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION (4 of 6 remaining) [2024-09-17 19:49:51,134 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (3 of 6 remaining) [2024-09-17 19:49:51,134 INFO L785 garLoopResultBuilder]: Registering result SAFE for location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION (2 of 6 remaining) [2024-09-17 19:49:51,134 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-09-17 19:49:51,134 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION (0 of 6 remaining) [2024-09-17 19:49:51,134 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-17 19:49:51,136 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-09-17 19:49:51,139 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-17 19:49:51,141 INFO L469 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-09-17 19:49:51,141 INFO L470 ceAbstractionStarter]: WitnessConsidered=1 [2024-09-17 19:49:51,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 07:49:51 BoogieIcfgContainer [2024-09-17 19:49:51,142 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-17 19:49:51,144 INFO L158 Benchmark]: Toolchain (without parser) took 3194.89ms. Allocated memory was 197.1MB in the beginning and 243.3MB in the end (delta: 46.1MB). Free memory was 126.2MB in the beginning and 174.0MB in the end (delta: -47.9MB). Peak memory consumption was 138.9kB. Max. memory is 16.1GB. [2024-09-17 19:49:51,144 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 104.9MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:49:51,144 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 197.1MB. Free memory is still 171.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:49:51,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.52ms. Allocated memory is still 197.1MB. Free memory was 126.0MB in the beginning and 112.3MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-17 19:49:51,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.82ms. Allocated memory is still 197.1MB. Free memory was 112.3MB in the beginning and 167.8MB in the end (delta: -55.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-17 19:49:51,145 INFO L158 Benchmark]: Boogie Preprocessor took 21.44ms. Allocated memory is still 197.1MB. Free memory was 167.8MB in the beginning and 166.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:49:51,145 INFO L158 Benchmark]: RCFGBuilder took 288.33ms. Allocated memory is still 197.1MB. Free memory was 166.3MB in the beginning and 151.0MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-17 19:49:51,145 INFO L158 Benchmark]: TraceAbstraction took 2574.41ms. Allocated memory was 197.1MB in the beginning and 243.3MB in the end (delta: 46.1MB). Free memory was 150.3MB in the beginning and 174.0MB in the end (delta: -23.8MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2024-09-17 19:49:51,146 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.10ms. Allocated memory is still 104.9MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.08ms. Allocated memory is still 197.1MB. Free memory is still 171.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.52ms. Allocated memory is still 197.1MB. Free memory was 126.0MB in the beginning and 112.3MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.82ms. Allocated memory is still 197.1MB. Free memory was 112.3MB in the beginning and 167.8MB in the end (delta: -55.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.44ms. Allocated memory is still 197.1MB. Free memory was 167.8MB in the beginning and 166.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 288.33ms. Allocated memory is still 197.1MB. Free memory was 166.3MB in the beginning and 151.0MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2574.41ms. Allocated memory was 197.1MB in the beginning and 243.3MB in the end (delta: 46.1MB). Free memory was 150.3MB in the beginning and 174.0MB in the end (delta: -23.8MB). Peak memory consumption was 24.1MB. 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: 37]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 11]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 11]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 8]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - PositiveResult [Line: 14]: 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: 11]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 253 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 161 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 145 IncrementalHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 92 mSDtfsCounter, 145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 179 ConstructedInterpolants, 0 QuantifiedInterpolants, 569 SizeOfPredicates, 1 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 260/300 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-17 19:49:51,165 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