./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/underapprox_1-2.c --full-output --witness-type correctness_witness --procedureinliner.inline.calls.to.implemented.procedures NEVER --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/underapprox_1-2.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e378df2c Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-acceleration/underapprox_1-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/underapprox_1-2.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --procedureinliner.inline.calls.to.implemented.procedures NEVER --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 15:30:29,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:30:29,763 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-10-15 15:30:29,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:30:29,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:30:29,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:30:29,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:30:29,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:30:29,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:30:29,800 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:30:29,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:30:29,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:30:29,801 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:30:29,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:30:29,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:30:29,802 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:30:29,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 15:30:29,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:30:29,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:30:29,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:30:29,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:30:29,803 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:30:29,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:30:29,804 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:30:29,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:30:29,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:30:29,804 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:30:29,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:30:29,805 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:30:29,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:30:29,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:30:29,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 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/referee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:30:30,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:30:30,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:30:30,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:30:30,078 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:30:30,082 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:30:30,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/underapprox_1-2.yml/witness-2.1.yml [2024-10-15 15:30:30,124 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:30:30,124 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:30:30,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/underapprox_1-2.c [2024-10-15 15:30:31,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:30:31,535 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:30:31,536 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/underapprox_1-2.c [2024-10-15 15:30:31,541 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/453c72a45/9a9e8e7e1d34432899b35e62c9234a7d/FLAGbb88863dd [2024-10-15 15:30:31,949 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/453c72a45/9a9e8e7e1d34432899b35e62c9234a7d [2024-10-15 15:30:31,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:30:31,951 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:30:31,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:30:31,954 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:30:31,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:30:31,960 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:30:30" (1/2) ... [2024-10-15 15:30:31,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@636be6f7 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:31, skipping insertion in model container [2024-10-15 15:30:31,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:30:30" (1/2) ... [2024-10-15 15:30:31,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5753380d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:31, skipping insertion in model container [2024-10-15 15:30:31,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:30:31" (2/2) ... [2024-10-15 15:30:31,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@636be6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:31, skipping insertion in model container [2024-10-15 15:30:31,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:30:31" (2/2) ... [2024-10-15 15:30:31,979 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:30:31,980 INFO L1541 ArrayList]: Loop invariant at [L16-L19] ((((((((((((long long) y * 2) + 1) <= (((89478484 + ((long long) y * 178956971)) / 268435456) * 3)) && (y <= 4)) && (x == 2)) || (((((long long) y + 1) <= (3 * ((((long long) 715827883 * y) + 715827872) / 2147483648))) && (y <= 32)) && (5 == x))) || (((((y / 2) <= 32) && ((y % 2) == 0)) && (x == 6)) && (((y / 2) + 1) <= (3 * ((715827872 + ((long long) 715827883 * (y / 2))) / 2147483648))))) || (((x == 3) && (((long long) y + 1) <= (3 * ((((long long) y * 178956971) + 178956968) / 536870912)))) && (y <= 8))) || ((x == 0) && (y == 1))) || (((y <= 2) && (((long long) y + 1) <= (((((long long) 44739243 * y) + 44739242) / 134217728) * 3))) && (x == 1))) || (((y <= 16) && ((((long long) y * 2) + 1) <= (((((long long) 715827883 * y) + 357913936) / 1073741824) * 3))) && (x == 4))) [2024-10-15 15:30:31,982 INFO L1541 ArrayList]: Function contract at [L5]: requires (1 <= cond), ensures (1 <= cond) [2024-10-15 15:30:31,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:30:32,090 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/loop-acceleration/underapprox_1-2.c[327,340] [2024-10-15 15:30:32,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:30:32,104 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-10-15 15:30:32,127 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/loop-acceleration/underapprox_1-2.c[327,340] Start Parsing Local [2024-10-15 15:30:32,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:30:32,156 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:30:32,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32 WrapperNode [2024-10-15 15:30:32,157 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:30:32,158 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:30:32,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:30:32,158 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:30:32,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32" (1/1) ... [2024-10-15 15:30:32,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32" (1/1) ... [2024-10-15 15:30:32,172 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:30:32,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:30:32,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:30:32,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:30:32,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:30:32,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32" (1/1) ... [2024-10-15 15:30:32,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32" (1/1) ... [2024-10-15 15:30:32,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32" (1/1) ... [2024-10-15 15:30:32,190 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-10-15 15:30:32,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32" (1/1) ... [2024-10-15 15:30:32,191 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32" (1/1) ... [2024-10-15 15:30:32,199 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32" (1/1) ... [2024-10-15 15:30:32,202 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32" (1/1) ... [2024-10-15 15:30:32,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32" (1/1) ... [2024-10-15 15:30:32,203 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32" (1/1) ... [2024-10-15 15:30:32,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:30:32,204 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:30:32,204 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:30:32,204 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:30:32,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32" (1/1) ... [2024-10-15 15:30:32,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:30:32,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:30:32,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-15 15:30:32,234 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-15 15:30:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:30:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:30:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:30:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:30:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:30:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:30:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:30:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-15 15:30:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-15 15:30:32,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-15 15:30:32,317 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:30:32,320 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:30:32,522 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-15 15:30:32,531 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:30:32,550 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:30:32,553 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-15 15:30:32,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:32 BoogieIcfgContainer [2024-10-15 15:30:32,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:30:32,554 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:30:32,554 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:30:32,554 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:30:32,555 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:30:30" (1/4) ... [2024-10-15 15:30:32,555 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7aac552 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:30:32, skipping insertion in model container [2024-10-15 15:30:32,555 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:30:31" (2/4) ... [2024-10-15 15:30:32,555 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7aac552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:30:32, skipping insertion in model container [2024-10-15 15:30:32,555 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:32" (3/4) ... [2024-10-15 15:30:32,556 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7aac552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:30:32, skipping insertion in model container [2024-10-15 15:30:32,556 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:32" (4/4) ... [2024-10-15 15:30:32,556 INFO L79 RefereeObserver]: Analyzing ICFG underapprox_1-2.c [2024-10-15 15:30:32,559 INFO L113 InvariantChecker]: Found 1 loops. [2024-10-15 15:30:32,560 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-10-15 15:30:32,560 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-10-15 15:30:32,560 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-10-15 15:30:32,560 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-10-15 15:30:32,560 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-10-15 15:30:32,560 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head, 2 loop-free subgraphs from procedure entry to error location [2024-10-15 15:30:32,592 INFO L309 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-10-15 15:30:32,593 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:32,593 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:32,593 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:32,594 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:32,595 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:32,630 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-10-15 15:30:32,631 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:32,631 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:32,631 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:32,632 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:32,642 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:32,676 INFO L520 InvariantChecker]: The annotation(s) from loop head L16-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-10-15 15:30:32,708 INFO L309 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-10-15 15:30:32,708 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:32,709 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:32,709 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:32,709 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:32,709 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:32,723 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-10-15 15:30:32,724 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:32,724 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:32,724 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:32,724 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:32,724 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:32,734 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-10-15 15:30:32,758 INFO L309 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-10-15 15:30:32,759 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:32,759 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:32,759 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:32,759 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:32,759 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:32,782 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-10-15 15:30:32,782 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:32,783 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:32,783 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:32,784 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:32,784 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:36,793 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-10-15 15:30:36,803 INFO L309 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-10-15 15:30:36,803 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:36,803 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:36,803 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:36,803 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:36,804 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:36,806 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-10-15 15:30:36,806 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:36,806 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:36,806 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:36,806 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:36,807 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:36,810 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-10-15 15:30:36,817 INFO L309 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-10-15 15:30:36,817 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:36,817 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:36,818 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:36,818 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:36,818 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:36,819 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-10-15 15:30:36,819 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:36,819 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:36,819 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:36,819 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:36,820 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:36,821 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-10-15 15:30:36,825 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-10-15 15:30:36,825 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7aac552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 15.10 03:30:36, skipping insertion in model container [2024-10-15 15:30:36,825 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-10-15 15:30:36,827 INFO L158 Benchmark]: Toolchain (without parser) took 4874.88ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 35.5MB in the beginning and 55.8MB in the end (delta: -20.3MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-10-15 15:30:36,828 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 44.0MB. Free memory was 26.5MB in the beginning and 26.5MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:30:36,828 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 44.0MB. Free memory is still 24.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:30:36,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.19ms. Allocated memory is still 75.5MB. Free memory was 35.2MB in the beginning and 42.7MB in the end (delta: -7.5MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-10-15 15:30:36,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 14.14ms. Allocated memory is still 75.5MB. Free memory was 42.7MB in the beginning and 41.8MB in the end (delta: 937.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:30:36,829 INFO L158 Benchmark]: Boogie Preprocessor took 31.60ms. Allocated memory is still 75.5MB. Free memory was 41.8MB in the beginning and 40.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:30:36,830 INFO L158 Benchmark]: RCFGBuilder took 349.01ms. Allocated memory is still 75.5MB. Free memory was 40.0MB in the beginning and 45.2MB in the end (delta: -5.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-15 15:30:36,830 INFO L158 Benchmark]: Referee took 4271.77ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 45.2MB in the beginning and 55.8MB in the end (delta: -10.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2024-10-15 15:30:36,833 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 16 to loop head at line 16. Annotation is valid for all loop-free paths from loop head at line 16 to check that procedure precondition always holds at line 16. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 16. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 7. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.18ms. Allocated memory is still 44.0MB. Free memory was 26.5MB in the beginning and 26.5MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.21ms. Allocated memory is still 44.0MB. Free memory is still 24.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.19ms. Allocated memory is still 75.5MB. Free memory was 35.2MB in the beginning and 42.7MB in the end (delta: -7.5MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 14.14ms. Allocated memory is still 75.5MB. Free memory was 42.7MB in the beginning and 41.8MB in the end (delta: 937.1kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.60ms. Allocated memory is still 75.5MB. Free memory was 41.8MB in the beginning and 40.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 349.01ms. Allocated memory is still 75.5MB. Free memory was 40.0MB in the beginning and 45.2MB in the end (delta: -5.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 4271.77ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 45.2MB in the beginning and 55.8MB in the end (delta: -10.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-15 15:30:36,858 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-acceleration/underapprox_1-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/underapprox_1-2.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --procedureinliner.inline.calls.to.implemented.procedures NEVER --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 15:30:38,523 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:30:38,584 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-10-15 15:30:38,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:30:38,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:30:38,609 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:30:38,610 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:30:38,610 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:30:38,611 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:30:38,611 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:30:38,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:30:38,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:30:38,612 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:30:38,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:30:38,613 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:30:38,613 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:30:38,614 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:30:38,614 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:30:38,614 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:30:38,614 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:30:38,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:30:38,618 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-15 15:30:38,618 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-15 15:30:38,619 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:30:38,619 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-15 15:30:38,619 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:30:38,620 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:30:38,620 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:30:38,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:30:38,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:30:38,621 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:30:38,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:30:38,622 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:30:38,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 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/referee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:30:38,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:30:38,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:30:38,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:30:38,920 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:30:38,921 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:30:38,922 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/underapprox_1-2.c [2024-10-15 15:30:40,258 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:30:40,391 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:30:40,391 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/underapprox_1-2.c [2024-10-15 15:30:40,399 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/13ffec0f8/55ab2e73ea094e3f80317cbaed408eb6/FLAG5a8eab658 [2024-10-15 15:30:40,414 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/13ffec0f8/55ab2e73ea094e3f80317cbaed408eb6 [2024-10-15 15:30:40,416 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:30:40,417 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:30:40,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/underapprox_1-2.yml/witness-2.1.yml [2024-10-15 15:30:40,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:30:40,461 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:30:40,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:30:40,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:30:40,467 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:30:40,468 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:30:40" (1/2) ... [2024-10-15 15:30:40,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a04abee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:40, skipping insertion in model container [2024-10-15 15:30:40,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:30:40" (1/2) ... [2024-10-15 15:30:40,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4fe0237c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:40, skipping insertion in model container [2024-10-15 15:30:40,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:30:40" (2/2) ... [2024-10-15 15:30:40,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a04abee and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:40, skipping insertion in model container [2024-10-15 15:30:40,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:30:40" (2/2) ... [2024-10-15 15:30:40,477 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:30:40,477 INFO L1541 ArrayList]: Loop invariant at [L16-L19] ((((((((((((long long) y * 2) + 1) <= (((89478484 + ((long long) y * 178956971)) / 268435456) * 3)) && (y <= 4)) && (x == 2)) || (((((long long) y + 1) <= (3 * ((((long long) 715827883 * y) + 715827872) / 2147483648))) && (y <= 32)) && (5 == x))) || (((((y / 2) <= 32) && ((y % 2) == 0)) && (x == 6)) && (((y / 2) + 1) <= (3 * ((715827872 + ((long long) 715827883 * (y / 2))) / 2147483648))))) || (((x == 3) && (((long long) y + 1) <= (3 * ((((long long) y * 178956971) + 178956968) / 536870912)))) && (y <= 8))) || ((x == 0) && (y == 1))) || (((y <= 2) && (((long long) y + 1) <= (((((long long) 44739243 * y) + 44739242) / 134217728) * 3))) && (x == 1))) || (((y <= 16) && ((((long long) y * 2) + 1) <= (((((long long) 715827883 * y) + 357913936) / 1073741824) * 3))) && (x == 4))) [2024-10-15 15:30:40,477 INFO L1541 ArrayList]: Function contract at [L5]: requires (1 <= cond), ensures (1 <= cond) [2024-10-15 15:30:40,504 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:30:40,642 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/loop-acceleration/underapprox_1-2.c[327,340] [2024-10-15 15:30:40,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:30:40,663 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-10-15 15:30:40,691 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/loop-acceleration/underapprox_1-2.c[327,340] Start Parsing Local [2024-10-15 15:30:40,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:30:40,726 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:30:40,727 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:40 WrapperNode [2024-10-15 15:30:40,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:30:40,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:30:40,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:30:40,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:30:40,734 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 15.10 03:30:40" (1/1) ... [2024-10-15 15:30:40,742 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 15.10 03:30:40" (1/1) ... [2024-10-15 15:30:40,747 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:30:40,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:30:40,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:30:40,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:30:40,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:30:40,754 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 15.10 03:30:40" (1/1) ... [2024-10-15 15:30:40,755 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 15.10 03:30:40" (1/1) ... [2024-10-15 15:30:40,756 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 15.10 03:30:40" (1/1) ... [2024-10-15 15:30:40,764 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-10-15 15:30:40,764 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 15.10 03:30:40" (1/1) ... [2024-10-15 15:30:40,764 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 15.10 03:30:40" (1/1) ... [2024-10-15 15:30:40,768 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 15.10 03:30:40" (1/1) ... [2024-10-15 15:30:40,770 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 15.10 03:30:40" (1/1) ... [2024-10-15 15:30:40,771 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 15.10 03:30:40" (1/1) ... [2024-10-15 15:30:40,771 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 15.10 03:30:40" (1/1) ... [2024-10-15 15:30:40,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:30:40,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:30:40,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:30:40,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:30:40,774 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 15.10 03:30:40" (1/1) ... [2024-10-15 15:30:40,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:30:40,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:30:40,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-15 15:30:40,804 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-15 15:30:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:30:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:30:40,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:30:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:30:40,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:30:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-15 15:30:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:30:40,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:30:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-15 15:30:40,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-15 15:30:40,901 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:30:40,903 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:30:41,115 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-15 15:30:41,123 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:30:41,144 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:30:41,144 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-15 15:30:41,145 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:41 BoogieIcfgContainer [2024-10-15 15:30:41,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:30:41,148 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:30:41,148 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:30:41,149 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:30:41,149 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:30:40" (1/4) ... [2024-10-15 15:30:41,149 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@670bbb01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:30:41, skipping insertion in model container [2024-10-15 15:30:41,149 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:30:40" (2/4) ... [2024-10-15 15:30:41,150 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@670bbb01 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:30:41, skipping insertion in model container [2024-10-15 15:30:41,150 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:40" (3/4) ... [2024-10-15 15:30:41,150 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@670bbb01 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:30:41, skipping insertion in model container [2024-10-15 15:30:41,150 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:41" (4/4) ... [2024-10-15 15:30:41,151 INFO L79 RefereeObserver]: Analyzing ICFG underapprox_1-2.c [2024-10-15 15:30:41,153 INFO L113 InvariantChecker]: Found 1 loops. [2024-10-15 15:30:41,154 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-10-15 15:30:41,154 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-10-15 15:30:41,154 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-10-15 15:30:41,154 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-10-15 15:30:41,155 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-10-15 15:30:41,155 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to loop head, 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to error location [2024-10-15 15:30:41,208 INFO L309 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-10-15 15:30:41,209 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:41,209 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:41,210 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:41,212 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:41,213 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:41,256 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-10-15 15:30:41,257 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:41,258 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:41,258 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:41,258 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:41,267 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:41,354 INFO L520 InvariantChecker]: The annotation(s) from loop head L16-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-10-15 15:30:41,372 INFO L309 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-10-15 15:30:41,372 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:41,372 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:41,372 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:41,372 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:41,372 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:41,382 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-10-15 15:30:41,382 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:41,382 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:41,382 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:41,383 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:41,383 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:41,392 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-10-15 15:30:41,407 INFO L309 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-10-15 15:30:41,407 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:41,407 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:41,407 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:41,408 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:41,408 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:41,421 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-10-15 15:30:41,422 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:41,422 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:41,422 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:41,423 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:41,423 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:41,644 INFO L520 InvariantChecker]: The annotation(s) from loop head L16-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-10-15 15:30:41,658 INFO L309 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-10-15 15:30:41,658 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:41,658 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:41,658 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:41,658 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:41,658 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:41,660 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-10-15 15:30:41,661 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:41,661 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:41,661 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:41,661 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:41,661 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:41,665 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-10-15 15:30:41,677 INFO L309 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-10-15 15:30:41,677 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:41,678 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:41,678 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:41,678 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:41,678 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:41,679 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-10-15 15:30:41,679 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:41,679 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:41,679 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:41,679 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:41,680 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:41,681 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-10-15 15:30:41,683 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-10-15 15:30:41,684 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@670bbb01 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 15.10 03:30:41, skipping insertion in model container [2024-10-15 15:30:41,684 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-10-15 15:30:41,685 INFO L158 Benchmark]: Toolchain (without parser) took 1223.29ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 33.4MB in the beginning and 62.4MB in the end (delta: -29.0MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-10-15 15:30:41,685 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 48.2MB. Free memory was 28.6MB in the beginning and 28.5MB in the end (delta: 100.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:30:41,686 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 67.1MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:30:41,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.27ms. Allocated memory is still 67.1MB. Free memory was 33.3MB in the beginning and 34.3MB in the end (delta: -1.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2024-10-15 15:30:41,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.98ms. Allocated memory is still 67.1MB. Free memory was 34.3MB in the beginning and 33.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:30:41,687 INFO L158 Benchmark]: Boogie Preprocessor took 25.09ms. Allocated memory is still 67.1MB. Free memory was 33.1MB in the beginning and 31.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:30:41,687 INFO L158 Benchmark]: RCFGBuilder took 371.70ms. Allocated memory is still 67.1MB. Free memory was 31.3MB in the beginning and 34.9MB in the end (delta: -3.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-15 15:30:41,688 INFO L158 Benchmark]: Referee took 535.66ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 34.9MB in the beginning and 62.4MB in the end (delta: -27.6MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2024-10-15 15:30:41,692 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness. Annotation is a valid proof of correctness. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 16 to check that procedure precondition always holds at line 16. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 7. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 16. Annotation is valid for all loop-free paths from loop head at line 16 to loop head at line 16. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 48.2MB. Free memory was 28.6MB in the beginning and 28.5MB in the end (delta: 100.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 67.1MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.27ms. Allocated memory is still 67.1MB. Free memory was 33.3MB in the beginning and 34.3MB in the end (delta: -1.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.98ms. Allocated memory is still 67.1MB. Free memory was 34.3MB in the beginning and 33.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.09ms. Allocated memory is still 67.1MB. Free memory was 33.1MB in the beginning and 31.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 371.70ms. Allocated memory is still 67.1MB. Free memory was 31.3MB in the beginning and 34.9MB in the end (delta: -3.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Referee took 535.66ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 34.9MB in the beginning and 62.4MB in the end (delta: -27.6MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-10-15 15:30:41,721 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE