./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound2.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ca4ee3dd Calling Ultimate with: /root/.sdkman/candidates/java/current/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/nla-digbench-scaling/lcm2_unwindbound2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound2.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 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-ca4ee3d-m [2024-09-20 20:11:23,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:11:23,207 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 20:11:23,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:11:23,213 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:11:23,241 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:11:23,243 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:11:23,244 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:11:23,245 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:11:23,245 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:11:23,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:11:23,246 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:11:23,247 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:11:23,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:11:23,249 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:11:23,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:11:23,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:11:23,250 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:11:23,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 20:11:23,250 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:11:23,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:11:23,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:11:23,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:11:23,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:11:23,255 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:11:23,255 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:11:23,256 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:11:23,256 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:11:23,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:11:23,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:11:23,257 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:11:23,257 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:11:23,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:11:23,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:11:23,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:11:23,258 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:11:23,258 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:11:23,258 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 20:11:23,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 20:11:23,259 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:11:23,259 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:11:23,259 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:11:23,260 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:11:23,261 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:11:23,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:11:23,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:11:23,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:11:23,537 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:11:23,538 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:11:23,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound2.c [2024-09-20 20:11:25,001 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:11:25,189 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:11:25,190 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound2.c [2024-09-20 20:11:25,200 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/093de3338/e43dd7e2613f40ffb9bd486afe61f590/FLAGa5b02608f [2024-09-20 20:11:25,213 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/093de3338/e43dd7e2613f40ffb9bd486afe61f590 [2024-09-20 20:11:25,215 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:11:25,216 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:11:25,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound2.yml/witness-2.1.yml [2024-09-20 20:11:25,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:11:25,272 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:11:25,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:11:25,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:11:25,279 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:11:25,280 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:11:25" (1/2) ... [2024-09-20 20:11:25,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a09ff72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:25, skipping insertion in model container [2024-09-20 20:11:25,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:11:25" (1/2) ... [2024-09-20 20:11:25,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@58c407e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:25, skipping insertion in model container [2024-09-20 20:11:25,284 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:11:25" (2/2) ... [2024-09-20 20:11:25,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a09ff72 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:11:25, skipping insertion in model container [2024-09-20 20:11:25,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:11:25" (2/2) ... [2024-09-20 20:11:25,294 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:11:25,296 INFO L1541 ArrayList]: Loop invariant at [L36-L49] ((((((unsigned long long) b * a) % 2147483648) * 2) == (((__int128) ((unsigned long long) y * v) + ((unsigned long long) x * u)) % 4294967296)) && (\old(counter) == 0)) [2024-09-20 20:11:25,297 INFO L1541 ArrayList]: Function contract at [L20]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-20 20:11:25,297 INFO L1541 ArrayList]: Function contract at [L8]: requires (counter == 0), ensures (counter == 0) [2024-09-20 20:11:25,297 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 20:11:25,316 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:11:25,477 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_unwindbound2.c[537,550] [2024-09-20 20:11:25,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:11:25,501 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-20 20:11:25,540 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_unwindbound2.c[537,550] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-20 20:11:25,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:11:25,577 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:11:25,578 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:11:25 WrapperNode [2024-09-20 20:11:25,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:11:25,579 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:11:25,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:11:25,579 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:11:25,592 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 20.09 08:11:25" (1/1) ... [2024-09-20 20:11:25,593 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 20.09 08:11:25" (1/1) ... [2024-09-20 20:11:25,601 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 20.09 08:11:25" (1/1) ... [2024-09-20 20:11:25,613 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 [2024-09-20 20:11:25,615 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 20.09 08:11:25" (1/1) ... [2024-09-20 20:11:25,615 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 20.09 08:11:25" (1/1) ... [2024-09-20 20:11:25,620 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 20.09 08:11:25" (1/1) ... [2024-09-20 20:11:25,626 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 20.09 08:11:25" (1/1) ... [2024-09-20 20:11:25,631 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 20.09 08:11:25" (1/1) ... [2024-09-20 20:11:25,632 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 20.09 08:11:25" (1/1) ... [2024-09-20 20:11:25,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:11:25,638 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:11:25,638 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:11:25,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:11:25,639 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 20.09 08:11:25" (1/1) ... [2024-09-20 20:11:25,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:11:25,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:11:25,673 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) [2024-09-20 20:11:25,678 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 [2024-09-20 20:11:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:11:25,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:11:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:11:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 20:11:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 20:11:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:11:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:11:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:11:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:11:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:11:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 20:11:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 20:11:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:11:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:11:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:11:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 20:11:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:11:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 20:11:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 20:11:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:11:25,820 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:11:25,824 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:11:25,851 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:11:25,878 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:11:26,096 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:11:26,111 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:11:26,139 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:11:26,139 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 20:11:26,140 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:11:26 BoogieIcfgContainer [2024-09-20 20:11:26,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:11:26,140 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:11:26,141 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:11:26,141 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:11:26,141 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:11:25" (1/4) ... [2024-09-20 20:11:26,142 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@45ac380c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:11:26, skipping insertion in model container [2024-09-20 20:11:26,142 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:11:25" (2/4) ... [2024-09-20 20:11:26,142 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@45ac380c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:11:26, skipping insertion in model container [2024-09-20 20:11:26,142 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 20.09 08:11:25" (3/4) ... [2024-09-20 20:11:26,143 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@45ac380c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:11:26, skipping insertion in model container [2024-09-20 20:11:26,143 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:11:26" (4/4) ... [2024-09-20 20:11:26,147 INFO L79 RefereeObserver]: Analyzing ICFG lcm2_unwindbound2.c [2024-09-20 20:11:26,151 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 20:11:26,152 INFO L373 InvariantChecker]: Will check inductivity from ENTRY assume_abort_if_notENTRY to ERROR_LOC assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:11:26,152 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:11:26,152 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr5REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:11:26,152 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-20 20:11:26,153 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 20:11:26,153 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr7ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-20 20:11:26,153 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr6REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-20 20:11:26,154 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 20:11:26,154 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 20:11:26,154 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 20:11:26,154 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 20:11:26,155 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 20:11:26,155 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-20 20:11:26,156 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 8 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to loop head, 3 loop-free subgraphs from loop head to error location [2024-09-20 20:11:26,224 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 20:11:26,225 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:26,226 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:26,226 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:26,227 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:26,229 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:26,241 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 20:11:26,242 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:26,242 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:26,242 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:26,242 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:26,245 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:26,260 INFO L520 InvariantChecker]: The annotation(s) from entry assume_abort_if_notENTRY to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:11:26,285 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 20:11:26,285 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:26,285 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:26,285 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:26,286 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:26,286 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:26,288 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 20:11:26,288 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:26,288 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:26,288 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:26,290 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:26,290 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:26,295 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:26,317 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 20:11:26,318 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:26,318 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:26,318 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:26,318 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:26,320 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:26,344 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 20:11:26,345 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:26,345 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:26,345 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:26,345 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:26,346 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:30,354 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 20:11:30,378 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 20:11:30,378 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:30,378 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:30,379 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:30,379 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:30,379 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:30,380 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 20:11:30,380 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:30,380 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:30,380 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:30,380 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:30,381 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:30,385 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:30,400 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:11:30,401 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:30,401 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:30,401 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:30,401 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:30,402 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:30,403 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:11:30,403 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:30,404 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:30,404 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:30,404 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:30,404 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:30,406 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:30,420 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-20 20:11:30,420 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:30,420 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:30,421 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:30,422 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:30,422 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:30,456 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-20 20:11:30,457 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:30,457 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:30,457 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:30,458 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:30,458 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:30,460 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr7ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:11:30,473 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 20:11:30,474 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:30,474 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:30,474 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:30,474 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:30,474 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:30,495 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-20 20:11:30,496 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:30,496 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:30,496 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:30,497 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:30,502 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:34,539 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 20:11:34,554 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:11:34,554 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:34,554 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:34,554 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:34,555 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:34,555 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:34,555 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:11:34,556 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:34,556 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:34,556 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:34,556 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:34,556 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:34,560 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:34,571 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 20:11:34,571 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:34,571 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:34,572 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:34,572 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:34,572 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:34,574 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 20:11:34,574 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:34,575 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:34,575 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:34,575 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:34,576 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:34,578 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:11:34,588 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:11:34,589 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:34,590 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:34,590 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:34,590 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:34,590 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:34,591 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:11:34,591 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:34,592 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:34,592 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:34,592 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:34,592 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:34,593 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 20:11:34,603 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 20:11:34,603 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:34,604 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:34,604 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:34,604 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:34,604 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:34,606 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 20:11:34,607 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:34,607 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:34,607 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:34,608 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:34,608 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:34,609 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:34,623 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-20 20:11:34,623 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:34,623 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:34,623 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:34,623 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:34,623 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:34,629 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-20 20:11:34,629 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:34,629 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:34,629 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:34,629 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:34,629 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:34,633 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 20:11:34,659 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 20:11:34,660 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:34,660 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:34,660 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:34,660 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:34,660 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:34,693 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-20 20:11:34,694 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:34,694 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:34,695 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:34,695 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:34,702 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:38,711 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 20:11:38,717 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 20:11:38,717 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@45ac380c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 08:11:38, skipping insertion in model container [2024-09-20 20:11:38,718 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 20:11:38,719 INFO L158 Benchmark]: Toolchain (without parser) took 13446.07ms. Allocated memory is still 151.0MB. Free memory was 79.5MB in the beginning and 111.5MB in the end (delta: -32.0MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2024-09-20 20:11:38,720 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 74.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:11:38,720 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:11:38,720 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.03ms. Allocated memory is still 151.0MB. Free memory was 79.3MB in the beginning and 65.4MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 20:11:38,721 INFO L158 Benchmark]: Boogie Preprocessor took 57.98ms. Allocated memory is still 151.0MB. Free memory was 65.4MB in the beginning and 63.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 20:11:38,722 INFO L158 Benchmark]: RCFGBuilder took 502.24ms. Allocated memory is still 151.0MB. Free memory was 63.2MB in the beginning and 109.9MB in the end (delta: -46.7MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-09-20 20:11:38,722 INFO L158 Benchmark]: Referee took 12577.26ms. Allocated memory is still 151.0MB. Free memory was 109.9MB in the beginning and 111.5MB in the end (delta: -1.5MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2024-09-20 20:11:38,726 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 36 to check that procedure precondition always holds at line 36. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to loop head at line 36. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to check that procedure precondition always holds at line 37. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 25. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 36. Annotation is valid for all loop-free paths from entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. Annotation is valid for all loop-free paths from loop head at line 36 to exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 25. 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 13. Annotation is valid for all loop-free paths from entry of procedure assume_abort_if_not to exit of procedure assume_abort_if_not. 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 main to check that procedure precondition always holds at line 28. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 26. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 74.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.03ms. Allocated memory is still 151.0MB. Free memory was 79.3MB in the beginning and 65.4MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.98ms. Allocated memory is still 151.0MB. Free memory was 65.4MB in the beginning and 63.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 502.24ms. Allocated memory is still 151.0MB. Free memory was 63.2MB in the beginning and 109.9MB in the end (delta: -46.7MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Referee took 12577.26ms. Allocated memory is still 151.0MB. Free memory was 109.9MB in the beginning and 111.5MB in the end (delta: -1.5MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 20:11:38,757 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/current/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/nla-digbench-scaling/lcm2_unwindbound2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound2.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 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-ca4ee3d-m [2024-09-20 20:11:40,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:11:41,010 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 20:11:41,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:11:41,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:11:41,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:11:41,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:11:41,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:11:41,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:11:41,050 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:11:41,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:11:41,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:11:41,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:11:41,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:11:41,052 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:11:41,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:11:41,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:11:41,054 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:11:41,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:11:41,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:11:41,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:11:41,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:11:41,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:11:41,057 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 20:11:41,057 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 20:11:41,057 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:11:41,058 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 20:11:41,058 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:11:41,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:11:41,058 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:11:41,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:11:41,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:11:41,063 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:11:41,063 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:11:41,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:11:41,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:11:41,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:11:41,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:11:41,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:11:41,065 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 20:11:41,066 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 20:11:41,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:11:41,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:11:41,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:11:41,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:11:41,067 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 20:11:41,068 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:11:41,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:11:41,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:11:41,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:11:41,416 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:11:41,417 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:11:41,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound2.c [2024-09-20 20:11:42,969 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:11:43,190 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:11:43,191 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound2.c [2024-09-20 20:11:43,199 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/884445728/3360d5a163594eb6a1b9ef4b267ca8a9/FLAG1b0989f2f [2024-09-20 20:11:43,538 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/884445728/3360d5a163594eb6a1b9ef4b267ca8a9 [2024-09-20 20:11:43,542 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:11:43,542 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:11:43,543 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound2.yml/witness-2.1.yml [2024-09-20 20:11:43,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:11:43,595 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:11:43,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:11:43,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:11:43,601 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:11:43,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:11:43" (1/2) ... [2024-09-20 20:11:43,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1368f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:43, skipping insertion in model container [2024-09-20 20:11:43,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:11:43" (1/2) ... [2024-09-20 20:11:43,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@69f8176d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:43, skipping insertion in model container [2024-09-20 20:11:43,606 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:11:43" (2/2) ... [2024-09-20 20:11:43,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1368f5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:11:43, skipping insertion in model container [2024-09-20 20:11:43,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:11:43" (2/2) ... [2024-09-20 20:11:43,621 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:11:43,622 INFO L1541 ArrayList]: Loop invariant at [L36-L49] ((((((unsigned long long) b * a) % 2147483648) * 2) == (((__int128) ((unsigned long long) y * v) + ((unsigned long long) x * u)) % 4294967296)) && (\old(counter) == 0)) [2024-09-20 20:11:43,622 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 20:11:43,622 INFO L1541 ArrayList]: Function contract at [L8]: requires (counter == 0), ensures (counter == 0) [2024-09-20 20:11:43,622 INFO L1541 ArrayList]: Function contract at [L20]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-20 20:11:43,642 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:11:43,807 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_unwindbound2.c[537,550] [2024-09-20 20:11:43,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:11:43,852 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-20 20:11:43,893 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_unwindbound2.c[537,550] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-20 20:11:43,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:11:43,930 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:11:43,930 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:11:43 WrapperNode [2024-09-20 20:11:43,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:11:43,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:11:43,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:11:43,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:11:43,945 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 20.09 08:11:43" (1/1) ... [2024-09-20 20:11:43,945 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 20.09 08:11:43" (1/1) ... [2024-09-20 20:11:43,953 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 20.09 08:11:43" (1/1) ... [2024-09-20 20:11:43,966 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 [2024-09-20 20:11:43,969 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 20.09 08:11:43" (1/1) ... [2024-09-20 20:11:43,969 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 20.09 08:11:43" (1/1) ... [2024-09-20 20:11:43,979 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 20.09 08:11:43" (1/1) ... [2024-09-20 20:11:43,986 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 20.09 08:11:43" (1/1) ... [2024-09-20 20:11:43,988 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 20.09 08:11:43" (1/1) ... [2024-09-20 20:11:43,993 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 20.09 08:11:43" (1/1) ... [2024-09-20 20:11:43,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:11:43,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:11:43,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:11:43,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:11:43,997 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 20.09 08:11:43" (1/1) ... [2024-09-20 20:11:44,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:11:44,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:11:44,030 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) [2024-09-20 20:11:44,034 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 [2024-09-20 20:11:44,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:11:44,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:11:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:11:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 20:11:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 20:11:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:11:44,079 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:11:44,079 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:11:44,080 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:11:44,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:11:44,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 20:11:44,080 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 20:11:44,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:11:44,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:11:44,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:11:44,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-20 20:11:44,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:11:44,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-20 20:11:44,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-20 20:11:44,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:11:44,165 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:11:44,169 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:11:44,199 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:11:44,236 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:11:44,695 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:11:44,719 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:11:44,756 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:11:44,759 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 20:11:44,759 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:11:44 BoogieIcfgContainer [2024-09-20 20:11:44,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:11:44,761 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:11:44,762 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:11:44,763 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:11:44,763 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:11:43" (1/4) ... [2024-09-20 20:11:44,764 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@b5c467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:11:44, skipping insertion in model container [2024-09-20 20:11:44,764 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:11:43" (2/4) ... [2024-09-20 20:11:44,764 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@b5c467 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:11:44, skipping insertion in model container [2024-09-20 20:11:44,764 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 20.09 08:11:43" (3/4) ... [2024-09-20 20:11:44,765 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@b5c467 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:11:44, skipping insertion in model container [2024-09-20 20:11:44,765 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:11:44" (4/4) ... [2024-09-20 20:11:44,767 INFO L79 RefereeObserver]: Analyzing ICFG lcm2_unwindbound2.c [2024-09-20 20:11:44,770 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 20:11:44,770 INFO L373 InvariantChecker]: Will check inductivity from ENTRY assume_abort_if_notENTRY to ERROR_LOC assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:11:44,771 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:11:44,771 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr5REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:11:44,771 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-20 20:11:44,771 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 20:11:44,771 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr7ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-20 20:11:44,771 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr6REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-20 20:11:44,771 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 20:11:44,772 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 20:11:44,772 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 20:11:44,772 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 20:11:44,772 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 20:11:44,772 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-20 20:11:44,772 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, 8 loop-free subgraphs from procedure entry to error location, 3 loop-free subgraphs from loop head to error location [2024-09-20 20:11:44,830 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 20:11:44,831 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:44,831 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:44,832 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:44,833 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:44,835 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:44,846 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 20:11:44,848 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:44,848 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:44,849 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:44,851 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:44,854 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:44,872 INFO L520 InvariantChecker]: The annotation(s) from entry assume_abort_if_notENTRY to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:11:44,913 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 20:11:44,913 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:44,913 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:44,913 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:44,914 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:44,914 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:44,916 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 20:11:44,917 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:44,917 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:44,918 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:44,918 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:44,918 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:44,920 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:44,938 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 20:11:44,941 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:44,941 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:44,941 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:44,942 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:44,942 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:44,954 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 20:11:44,957 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:44,957 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:44,957 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:44,957 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:44,958 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:49,002 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 20:11:49,036 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 20:11:49,037 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:49,037 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:49,037 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:49,037 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:49,037 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:49,038 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 20:11:49,038 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:49,039 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:49,039 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:49,039 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:49,039 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:49,043 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:49,057 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:11:49,057 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:49,057 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:49,057 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:49,058 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:49,058 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:49,059 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:11:49,059 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:49,059 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:49,060 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:49,060 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:49,060 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:49,064 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:49,078 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-20 20:11:49,078 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:49,078 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:49,078 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:49,078 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:49,079 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:49,106 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-20 20:11:49,107 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:49,107 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:49,107 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:49,107 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:49,108 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:49,110 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr7ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:11:49,122 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 20:11:49,123 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:49,123 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:49,123 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:49,123 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:49,124 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:49,142 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-20 20:11:49,143 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:49,143 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:49,143 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:49,144 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:49,148 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:53,195 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 20:11:53,223 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:11:53,226 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:53,226 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:53,226 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:53,226 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:53,227 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:53,227 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:11:53,228 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:53,228 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:53,228 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:53,228 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:53,237 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:53,241 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:53,255 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 20:11:53,255 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:53,255 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:53,255 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:53,256 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:53,256 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:53,258 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 20:11:53,259 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:53,259 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:53,260 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:53,260 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:53,261 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:53,262 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:11:53,274 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:11:53,274 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:53,274 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:53,274 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:53,275 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:53,275 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:53,276 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:11:53,276 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:53,276 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:53,276 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:53,276 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:53,276 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:53,278 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 20:11:53,289 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 20:11:53,290 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:53,290 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:53,290 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:53,290 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:53,290 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:53,292 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 20:11:53,293 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:53,293 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:53,293 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:53,293 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:53,293 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:53,295 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:53,307 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-20 20:11:53,307 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:53,307 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:53,307 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:53,307 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:53,307 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:53,313 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-20 20:11:53,313 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:53,314 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:53,314 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:53,314 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:53,314 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:53,338 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 20:11:53,354 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 20:11:53,354 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:53,354 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:53,355 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:53,355 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:53,355 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:53,380 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-20 20:11:53,381 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:53,381 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:53,381 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:53,381 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:53,386 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:57,491 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 20:11:57,518 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 20:11:57,519 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@b5c467 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 08:11:57, skipping insertion in model container [2024-09-20 20:11:57,519 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 20:11:57,526 INFO L158 Benchmark]: Toolchain (without parser) took 13930.17ms. Allocated memory is still 77.6MB. Free memory was 52.6MB in the beginning and 27.0MB in the end (delta: 25.6MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2024-09-20 20:11:57,526 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory is still 29.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:11:57,527 INFO L158 Benchmark]: Witness Parser took 1.25ms. Allocated memory is still 77.6MB. Free memory was 54.7MB in the beginning and 54.4MB in the end (delta: 273.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:11:57,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.25ms. Allocated memory is still 77.6MB. Free memory was 52.3MB in the beginning and 37.9MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 20:11:57,530 INFO L158 Benchmark]: Boogie Preprocessor took 63.89ms. Allocated memory is still 77.6MB. Free memory was 37.9MB in the beginning and 35.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 20:11:57,530 INFO L158 Benchmark]: RCFGBuilder took 764.83ms. Allocated memory is still 77.6MB. Free memory was 35.8MB in the beginning and 46.2MB in the end (delta: -10.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2024-09-20 20:11:57,531 INFO L158 Benchmark]: Referee took 12757.47ms. Allocated memory is still 77.6MB. Free memory was 46.2MB in the beginning and 27.5MB in the end (delta: 18.7MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2024-09-20 20:11:57,535 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 36 to check that procedure precondition always holds at line 36. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to loop head at line 36. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to check that procedure precondition always holds at line 37. Annotation is valid for all loop-free paths from loop head at line 36 to exit of procedure main. 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 13. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 26. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 25. Annotation is valid for all loop-free paths from entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 36. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 28. Annotation is valid for all loop-free paths from entry of procedure assume_abort_if_not to exit of procedure assume_abort_if_not. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 25. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory is still 29.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 1.25ms. Allocated memory is still 77.6MB. Free memory was 54.7MB in the beginning and 54.4MB in the end (delta: 273.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.25ms. Allocated memory is still 77.6MB. Free memory was 52.3MB in the beginning and 37.9MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.89ms. Allocated memory is still 77.6MB. Free memory was 37.9MB in the beginning and 35.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 764.83ms. Allocated memory is still 77.6MB. Free memory was 35.8MB in the beginning and 46.2MB in the end (delta: -10.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Referee took 12757.47ms. Allocated memory is still 77.6MB. Free memory was 46.2MB in the beginning and 27.5MB in the end (delta: 18.7MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 20:11:57,590 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 Writing output log to file Ultimate.log Result: UNKNOWN