./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/functions_1-1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/functions_1-1.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/loop-acceleration/functions_1-1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/functions_1-1.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-dev-a9b967e-m [2024-09-11 20:46:28,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:46:28,814 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:46:28,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:46:28,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:46:28,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:46:28,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:46:28,849 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:46:28,850 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:46:28,850 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:46:28,850 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:46:28,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:46:28,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:46:28,851 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:46:28,851 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:46:28,852 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:46:28,852 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:46:28,852 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:46:28,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:46:28,852 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:46:28,853 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:46:28,853 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:46:28,853 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:46:28,853 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:46:28,854 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:46:28,854 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:46:28,854 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:46:28,854 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:46:28,854 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:46:28,854 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:46:28,855 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:46:28,855 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:46:28,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:46:28,855 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:46:28,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:46:28,855 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:46:28,856 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:46:28,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:46:28,856 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:46:28,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:46:28,863 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:46:28,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:46:28,864 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:46:29,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:46:29,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:46:29,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:46:29,131 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:46:29,132 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:46:29,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/functions_1-1.c [2024-09-11 20:46:30,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:46:30,728 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:46:30,728 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/functions_1-1.c [2024-09-11 20:46:30,737 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/e0345025b/cea9840edbbd4802bac81a086b7fec84/FLAG94efa9a7e [2024-09-11 20:46:31,081 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/e0345025b/cea9840edbbd4802bac81a086b7fec84 [2024-09-11 20:46:31,085 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:46:31,086 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:46:31,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/functions_1-1.yml/witness-2.1.yml [2024-09-11 20:46:31,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:46:31,160 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:46:31,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:46:31,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:46:31,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:46:31,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:46:31" (1/2) ... [2024-09-11 20:46:31,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1bfd03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31, skipping insertion in model container [2024-09-11 20:46:31,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:46:31" (1/2) ... [2024-09-11 20:46:31,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@28d7dc03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31, skipping insertion in model container [2024-09-11 20:46:31,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:46:31" (2/2) ... [2024-09-11 20:46:31,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1bfd03 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:46:31, skipping insertion in model container [2024-09-11 20:46:31,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:46:31" (2/2) ... [2024-09-11 20:46:31,190 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:46:31,197 INFO L1541 ArrayList]: Loop invariant at [L19-L21] ((x % 2) == 0) [2024-09-11 20:46:31,224 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:46:31,440 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/loop-acceleration/functions_1-1.c[325,338] [2024-09-11 20:46:31,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:46:31,482 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:46:31,505 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/loop-acceleration/functions_1-1.c[325,338] Start Parsing Local [2024-09-11 20:46:31,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:46:31,577 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:46:31,582 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:46:31 WrapperNode [2024-09-11 20:46:31,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:46:31,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:46:31,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:46:31,583 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:46:31,597 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 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,602 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 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,606 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 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,616 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-11 20:46:31,616 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 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,620 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 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,622 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 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,632 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 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,636 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 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,637 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 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:46:31,642 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:46:31,642 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:46:31,642 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:46:31,643 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 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:46:31,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:46:31,668 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) [2024-09-11 20:46:31,670 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 [2024-09-11 20:46:31,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:46:31,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:46:31,724 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:46:31,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:46:31,724 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-09-11 20:46:31,724 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:46:31,725 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:46:31,725 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:46:31,725 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:46:31,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:46:31,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:46:31,725 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-09-11 20:46:31,728 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:46:31,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:46:31,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-11 20:46:31,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:46:31,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-11 20:46:31,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-11 20:46:31,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:46:31,784 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:46:31,786 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:46:31,948 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-09-11 20:46:31,948 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:46:31,989 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:46:31,989 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-11 20:46:31,989 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:46:31 BoogieIcfgContainer [2024-09-11 20:46:31,989 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:46:31,990 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:46:31,990 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:46:31,990 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:46:31,990 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:46:31" (1/4) ... [2024-09-11 20:46:31,991 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6d1e6dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:46:31, skipping insertion in model container [2024-09-11 20:46:31,991 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:46:31" (2/4) ... [2024-09-11 20:46:31,993 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6d1e6dfc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:46:31, skipping insertion in model container [2024-09-11 20:46:31,993 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 11.09 08:46:31" (3/4) ... [2024-09-11 20:46:31,993 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6d1e6dfc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:46:31, skipping insertion in model container [2024-09-11 20:46:31,993 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:46:31" (4/4) ... [2024-09-11 20:46:31,994 INFO L79 RefereeObserver]: Analyzing ICFG functions_1-1.c [2024-09-11 20:46:31,998 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-11 20:46:32,000 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-11 20:46:32,000 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L19-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:46:32,001 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-11 20:46:32,001 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head [2024-09-11 20:46:32,047 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-11 20:46:32,049 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:32,049 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:32,050 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:32,051 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:32,053 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:32,057 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-11 20:46:32,062 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:32,062 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:32,064 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:32,065 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:32,065 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:32,109 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:46:32,120 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-11 20:46:32,120 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:32,120 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:32,120 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:32,124 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:32,124 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:32,134 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-11 20:46:32,134 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:32,134 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:32,134 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:32,134 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:32,134 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:32,170 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:46:32,171 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:32,171 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:32,171 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:32,171 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:32,171 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:32,172 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:46:32,172 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:32,172 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:32,172 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:32,172 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:32,172 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:32,181 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-11 20:46:32,181 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6d1e6dfc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:46:32, skipping insertion in model container [2024-09-11 20:46:32,181 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:46:32,183 INFO L158 Benchmark]: Toolchain (without parser) took 1021.82ms. Allocated memory is still 234.9MB. Free memory was 200.1MB in the beginning and 199.7MB in the end (delta: 433.0kB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-09-11 20:46:32,183 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:46:32,183 INFO L158 Benchmark]: Witness Parser took 0.08ms. Allocated memory is still 234.9MB. Free memory is still 201.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:46:32,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.99ms. Allocated memory is still 234.9MB. Free memory was 199.1MB in the beginning and 186.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:46:32,184 INFO L158 Benchmark]: Boogie Preprocessor took 56.21ms. Allocated memory is still 234.9MB. Free memory was 186.5MB in the beginning and 184.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:46:32,184 INFO L158 Benchmark]: RCFGBuilder took 347.29ms. Allocated memory is still 234.9MB. Free memory was 184.4MB in the beginning and 171.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:46:32,185 INFO L158 Benchmark]: Referee took 191.53ms. Allocated memory is still 234.9MB. Free memory was 171.8MB in the beginning and 199.7MB in the end (delta: -27.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-11 20:46:32,187 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 19 to loop head at line 19. One counterexample starts in x=0 and ends in . Annotation is not valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 7. One counterexample starts in \old(cond)=0 and ends in \old(cond)=0, cond=0. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 19. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.08ms. Allocated memory is still 234.9MB. Free memory is still 201.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 415.99ms. Allocated memory is still 234.9MB. Free memory was 199.1MB in the beginning and 186.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.21ms. Allocated memory is still 234.9MB. Free memory was 186.5MB in the beginning and 184.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 347.29ms. Allocated memory is still 234.9MB. Free memory was 184.4MB in the beginning and 171.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 191.53ms. Allocated memory is still 234.9MB. Free memory was 171.8MB in the beginning and 199.7MB in the end (delta: -27.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:46:32,227 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE