./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c --full-output --witness-type correctness_witness --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound20.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 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_unwindbound20.c ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound20.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 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 20:12:25,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 20:12:25,801 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-12 20:12:25,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 20:12:25,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 20:12:25,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 20:12:25,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 20:12:25,847 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 20:12:25,848 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 20:12:25,848 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 20:12:25,848 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 20:12:25,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 20:12:25,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 20:12:25,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 20:12:25,851 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 20:12:25,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 20:12:25,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 20:12:25,859 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 20:12:25,859 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 20:12:25,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 20:12:25,860 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 20:12:25,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 20:12:25,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 20:12:25,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 20:12:25,864 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 20:12:25,864 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 20:12:25,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 20:12:25,864 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 20:12:25,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 20:12:25,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 20:12:25,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 20:12:25,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 20:12:25,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 20:12:25,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 20:12:25,865 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 20:12:25,865 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 20:12:25,866 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 20:12:25,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 20:12:25,866 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 20:12:25,866 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 20:12:25,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 20:12:25,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 20:12:25,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 20:12:26,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 20:12:26,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 20:12:26,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 20:12:26,089 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-12 20:12:26,090 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-12 20:12:26,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound20.yml/witness-2.1.yml [2024-09-12 20:12:26,162 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 20:12:26,163 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 20:12:26,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2024-09-12 20:12:27,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 20:12:27,519 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 20:12:27,519 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2024-09-12 20:12:27,525 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/0ab1894c5/0fd4eaf7de7e45c58a11ba605eb06831/FLAGfd6fad980 [2024-09-12 20:12:27,536 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/0ab1894c5/0fd4eaf7de7e45c58a11ba605eb06831 [2024-09-12 20:12:27,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 20:12:27,538 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-12 20:12:27,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 20:12:27,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 20:12:27,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 20:12:27,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 08:12:26" (1/2) ... [2024-09-12 20:12:27,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d42ba4f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:12:27, skipping insertion in model container [2024-09-12 20:12:27,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 08:12:26" (1/2) ... [2024-09-12 20:12:27,546 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@62a7563 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:12:27, skipping insertion in model container [2024-09-12 20:12:27,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 08:12:27" (2/2) ... [2024-09-12 20:12:27,546 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d42ba4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:12:27, skipping insertion in model container [2024-09-12 20:12:27,546 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 08:12:27" (2/2) ... [2024-09-12 20:12:27,553 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-12 20:12:27,555 INFO L1541 ArrayList]: Loop invariant at [L36-L49] ((((0 <= (counter + 2147483648)) && (((((unsigned long long) b * a) % 2147483648) * 2) == ((((unsigned long long) y * v) + ((unsigned long long) x * u)) % 4294967296))) && (counter <= 20)) && (\old(counter) == 0)) [2024-09-12 20:12:27,555 INFO L1541 ArrayList]: Function contract at [L20]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-12 20:12:27,555 INFO L1541 ArrayList]: Function contract at [L8]: requires (counter == 0), ensures (counter == 0) [2024-09-12 20:12:27,555 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-12 20:12:27,569 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 20:12:27,691 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c[537,550] [2024-09-12 20:12:27,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 20:12:27,712 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-12 20:12:27,740 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c[537,550] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-12 20:12:27,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 20:12:27,762 INFO L204 MainTranslator]: Completed translation [2024-09-12 20:12:27,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:12:27 WrapperNode [2024-09-12 20:12:27,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 20:12:27,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 20:12:27,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 20:12:27,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 20:12:27,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:12:27" (1/1) ... [2024-09-12 20:12:27,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:12:27" (1/1) ... [2024-09-12 20:12:27,796 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:12:27" (1/1) ... [2024-09-12 20:12:27,815 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 [2024-09-12 20:12:27,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:12:27" (1/1) ... [2024-09-12 20:12:27,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:12:27" (1/1) ... [2024-09-12 20:12:27,821 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:12:27" (1/1) ... [2024-09-12 20:12:27,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:12:27" (1/1) ... [2024-09-12 20:12:27,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:12:27" (1/1) ... [2024-09-12 20:12:27,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:12:27" (1/1) ... [2024-09-12 20:12:27,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 20:12:27,834 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 20:12:27,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 20:12:27,835 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 20:12:27,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:12:27" (1/1) ... [2024-09-12 20:12:27,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 20:12:27,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-12 20:12:27,867 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) [2024-09-12 20:12:27,869 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 [2024-09-12 20:12:27,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 20:12:27,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 20:12:27,907 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-12 20:12:27,907 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 20:12:27,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 20:12:27,908 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 20:12:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-12 20:12:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-12 20:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-12 20:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 20:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-12 20:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 20:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 20:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 20:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 20:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-12 20:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 20:12:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-12 20:12:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-12 20:12:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 20:12:27,975 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 20:12:27,977 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 20:12:27,998 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 20:12:28,029 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 20:12:28,189 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 20:12:28,231 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-09-12 20:12:28,231 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 20:12:28,258 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 20:12:28,261 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 20:12:28,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 08:12:28 BoogieIcfgContainer [2024-09-12 20:12:28,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 20:12:28,262 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-12 20:12:28,262 INFO L270 PluginConnector]: Initializing Referee... [2024-09-12 20:12:28,263 INFO L274 PluginConnector]: Referee initialized [2024-09-12 20:12:28,263 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 08:12:26" (1/4) ... [2024-09-12 20:12:28,263 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@66dc0496 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 08:12:28, skipping insertion in model container [2024-09-12 20:12:28,263 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 12.09 08:12:27" (2/4) ... [2024-09-12 20:12:28,265 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@66dc0496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 08:12:28, skipping insertion in model container [2024-09-12 20:12:28,265 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:12:27" (3/4) ... [2024-09-12 20:12:28,266 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@66dc0496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 08:12:28, skipping insertion in model container [2024-09-12 20:12:28,266 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 08:12:28" (4/4) ... [2024-09-12 20:12:28,267 INFO L79 RefereeObserver]: Analyzing ICFG lcm2_unwindbound20.c [2024-09-12 20:12:28,274 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-12 20:12:28,274 INFO L367 InvariantChecker]: Will check inductivity from ENTRY assume_abort_if_notENTRY to ERROR_LOC assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 4 edges. [2024-09-12 20:12:28,275 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-10 to ERROR_LOC mainErr14ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 11 edges. [2024-09-12 20:12:28,275 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-10 to ERROR_LOC mainErr13REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 9 edges. [2024-09-12 20:12:28,275 INFO L367 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-12 20:12:28,275 INFO L367 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 7 edges. [2024-09-12 20:12:28,275 INFO L367 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr6ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 9 edges. [2024-09-12 20:12:28,276 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-10 to ERROR_LOC mainErr9REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-12 20:12:28,276 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-10 to ERROR_LOC mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 3 edges. [2024-09-12 20:12:28,276 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-10 to ERROR_LOC mainErr12ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-12 20:12:28,276 INFO L367 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-12 20:12:28,276 INFO L367 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 8 edges. [2024-09-12 20:12:28,276 INFO L367 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-12 20:12:28,276 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-10 to ERROR_LOC mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 2 edges. [2024-09-12 20:12:28,276 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-10 to ERROR_LOC mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 9 edges. [2024-09-12 20:12:28,276 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-12 20:12:28,277 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-12 20:12:28,277 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-10 to ERROR_LOC mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 10 edges. [2024-09-12 20:12:28,277 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-12 20:12:28,277 INFO L367 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-12 20:12:28,277 INFO L130 InvariantChecker]: Will check 11 loop-free subgraphs from procedure entry to error location, 8 loop-free subgraphs from loop head to error location [2024-09-12 20:12:28,327 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-12 20:12:28,328 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:28,328 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:28,329 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:28,330 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:28,332 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,341 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-12 20:12:28,343 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,344 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:28,344 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:28,345 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:28,348 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:28,362 INFO L514 InvariantChecker]: The annotation(s) from entry assume_abort_if_notENTRY to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-12 20:12:28,385 INFO L314 BlockEncoder]: Initial Icfg 10 locations, 11 edges [2024-09-12 20:12:28,385 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:28,385 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:28,386 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:28,386 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:28,386 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,420 INFO L101 BaseMinimizeStates]: Removed 24 edges and 8 locations by large block encoding [2024-09-12 20:12:28,421 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,421 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:28,421 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:28,421 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:28,426 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:28,474 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 9 edges [2024-09-12 20:12:28,474 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:28,474 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:28,474 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:28,474 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:28,474 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,501 INFO L101 BaseMinimizeStates]: Removed 16 edges and 6 locations by large block encoding [2024-09-12 20:12:28,504 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,504 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:28,504 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:28,504 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:28,508 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:28,531 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:12:28,532 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:28,533 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:28,533 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:28,534 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:28,534 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,535 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:12:28,535 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,535 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:28,535 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:28,535 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:28,535 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:28,538 INFO L514 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 20:12:28,549 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-12 20:12:28,550 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:28,550 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:28,550 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:28,550 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:28,550 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,553 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-12 20:12:28,553 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,553 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:28,553 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:28,554 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:28,554 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:28,557 INFO L514 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW is inductive. [2024-09-12 20:12:28,572 INFO L314 BlockEncoder]: Initial Icfg 10 locations, 9 edges [2024-09-12 20:12:28,573 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:28,573 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:28,573 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:28,573 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:28,573 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,580 INFO L101 BaseMinimizeStates]: Removed 16 edges and 8 locations by large block encoding [2024-09-12 20:12:28,581 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,581 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:28,581 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:28,581 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:28,581 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:28,583 INFO L514 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr6ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 20:12:28,592 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-12 20:12:28,593 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:28,593 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:28,593 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:28,594 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:28,594 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,598 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-12 20:12:28,599 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,599 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:28,599 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:28,599 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:28,599 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:28,613 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:12:28,613 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:28,614 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:28,614 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:28,614 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:28,614 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,615 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:12:28,616 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,616 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:28,616 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:28,616 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:28,616 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:28,630 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 11 edges [2024-09-12 20:12:28,631 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:28,631 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:28,631 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:28,631 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:28,631 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,671 INFO L101 BaseMinimizeStates]: Removed 22 edges and 9 locations by large block encoding [2024-09-12 20:12:28,672 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:28,673 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:28,673 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:28,673 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:28,683 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:32,702 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-12 20:12:32,722 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-12 20:12:32,726 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:32,726 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:32,726 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:32,726 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:32,727 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,728 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-12 20:12:32,728 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,728 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:32,728 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:32,728 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:32,728 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:32,731 INFO L514 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 20:12:32,739 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 8 edges [2024-09-12 20:12:32,739 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:32,739 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:32,739 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:32,740 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:32,740 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,743 INFO L101 BaseMinimizeStates]: Removed 14 edges and 7 locations by large block encoding [2024-09-12 20:12:32,744 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,744 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:32,744 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:32,744 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:32,745 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:32,750 INFO L514 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW is inductive. [2024-09-12 20:12:32,757 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-12 20:12:32,757 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:32,757 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:32,758 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:32,758 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:32,758 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,758 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-12 20:12:32,758 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,758 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:32,758 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:32,758 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:32,759 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:32,760 INFO L514 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 20:12:32,766 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-12 20:12:32,769 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:32,769 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:32,770 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:32,770 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:32,770 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,771 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-12 20:12:32,771 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,771 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:32,771 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:32,771 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:32,772 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:32,784 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 9 edges [2024-09-12 20:12:32,784 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:32,785 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:32,785 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:32,785 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:32,785 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,798 INFO L101 BaseMinimizeStates]: Removed 16 edges and 7 locations by large block encoding [2024-09-12 20:12:32,798 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,798 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:32,799 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:32,799 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:32,802 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:32,805 INFO L514 InvariantChecker]: The annotation(s) from loop head L36-10 to error location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW is inductive. [2024-09-12 20:12:32,812 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:12:32,813 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:32,813 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:32,814 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:32,814 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:32,814 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,814 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:12:32,814 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,814 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:32,815 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:32,815 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:32,815 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:32,816 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 20:12:32,826 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-12 20:12:32,826 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:32,826 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:32,827 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:32,827 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:32,827 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,828 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-12 20:12:32,828 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,829 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:32,829 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:32,829 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:32,830 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:32,831 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-12 20:12:32,840 INFO L314 BlockEncoder]: Initial Icfg 10 locations, 10 edges [2024-09-12 20:12:32,840 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:32,840 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:32,840 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:32,840 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:32,841 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,851 INFO L101 BaseMinimizeStates]: Removed 19 edges and 8 locations by large block encoding [2024-09-12 20:12:32,852 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,852 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:32,852 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:32,853 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:32,856 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:32,859 INFO L514 InvariantChecker]: The annotation(s) from loop head L36-10 to error location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW is inductive. [2024-09-12 20:12:32,868 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:12:32,870 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:32,871 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:32,871 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:32,871 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:32,871 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,872 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:12:32,872 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,872 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:32,872 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:32,872 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:32,872 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:32,874 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-12 20:12:32,881 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-12 20:12:32,882 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:32,882 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:32,882 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:32,882 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:32,882 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,883 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-12 20:12:32,883 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:32,884 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:32,884 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:32,884 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:32,884 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:32,885 INFO L514 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 20:12:32,895 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-12 20:12:32,896 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@66dc0496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 12.09 08:12:32, skipping insertion in model container [2024-09-12 20:12:32,896 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-12 20:12:32,898 INFO L158 Benchmark]: Toolchain (without parser) took 5359.53ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 68.7MB in the beginning and 108.9MB in the end (delta: -40.2MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2024-09-12 20:12:32,898 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 20:12:32,898 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 142.6MB. Free memory is still 115.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 20:12:32,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.92ms. Allocated memory is still 142.6MB. Free memory was 68.4MB in the beginning and 54.5MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 20:12:32,899 INFO L158 Benchmark]: Boogie Preprocessor took 66.65ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 54.5MB in the beginning and 163.5MB in the end (delta: -109.0MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-09-12 20:12:32,901 INFO L158 Benchmark]: RCFGBuilder took 426.89ms. Allocated memory is still 195.0MB. Free memory was 163.4MB in the beginning and 147.6MB in the end (delta: 15.8MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2024-09-12 20:12:32,901 INFO L158 Benchmark]: Referee took 4634.39ms. Allocated memory is still 195.0MB. Free memory was 147.6MB in the beginning and 108.9MB in the end (delta: 38.6MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-09-12 20:12:32,903 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Annotation is not valid for all loop-free paths from loop head at line 36 to exit of procedure main. One counterexample starts in \old(counter)=2, a=0, b=0, counter=20, u=0, v=0, x=0, y=0 and ends in \old(counter)=2, \result=0, counter=21. Annotation is not valid for all loop-free paths from loop head at line 36 to check that integer overflow can never occur at line 36. One counterexample starts in counter=2147483647 and ends in counter=2147483647. Annotation is not valid for all loop-free paths from loop head at line 36 to check that procedure precondition always holds at line 36. One counterexample starts in a=0, b=0, counter=20, u=1, v=0, x=1, y=0 and ends in counter=21. Annotation is not valid for all loop-free paths from loop head at line 36 to check that integer overflow can never occur at line 36. One counterexample starts in counter=-2147483650 and ends in counter=-2147483650. Annotation is not valid for all loop-free paths from loop head at line 36 to check that procedure precondition always holds at line 37. One counterexample starts in a=0, b=0, counter=0, u=0, v=1, x=0, y=1 and ends in counter=1. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to check that invariant of correctness witness holds at line 36. Annotation is valid for all loop-free paths from entry of procedure main to check that invariant of correctness witness holds at line 36. Annotation is valid for all loop-free paths from loop head at line 36 to check that integer overflow can never occur at line 42. 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 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 check that procedure precondition always holds at line 25. 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 check that integer overflow can never occur 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 integer overflow can never occur 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 26. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 36 to check that integer overflow can never occur at line 36. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.52ms. Allocated memory is still 142.6MB. Free memory is still 115.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.92ms. Allocated memory is still 142.6MB. Free memory was 68.4MB in the beginning and 54.5MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.65ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 54.5MB in the beginning and 163.5MB in the end (delta: -109.0MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * RCFGBuilder took 426.89ms. Allocated memory is still 195.0MB. Free memory was 163.4MB in the beginning and 147.6MB in the end (delta: 15.8MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Referee took 4634.39ms. Allocated memory is still 195.0MB. Free memory was 147.6MB in the beginning and 108.9MB in the end (delta: 38.6MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-12 20:12:32,930 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE