This is Ultimate 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 15:30:20,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:30:20,978 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-10-15 15:30:20,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:30:20,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:30:21,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:30:21,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:30:21,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:30:21,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:30:21,011 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:30:21,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:30:21,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:30:21,012 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:30:21,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:30:21,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:30:21,013 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:30:21,014 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 15:30:21,014 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:30:21,014 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:30:21,014 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:30:21,015 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:30:21,017 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:30:21,018 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:30:21,018 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:30:21,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:30:21,018 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:30:21,018 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:30:21,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:30:21,019 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:30:21,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:30:21,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:30:21,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:30:21,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:30:21,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:30:21,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:30:21,271 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:30:21,271 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:30:21,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/trex02-1.yml/witness-2.1.yml [2024-10-15 15:30:21,318 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:30:21,319 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:30:21,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loops/trex02-1.c [2024-10-15 15:30:22,720 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:30:22,873 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:30:22,873 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/trex02-1.c [2024-10-15 15:30:22,879 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/7f9e02b8a/eab8109f442147cbb3c04204add102f5/FLAG02ac74628 [2024-10-15 15:30:22,898 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/7f9e02b8a/eab8109f442147cbb3c04204add102f5 [2024-10-15 15:30:22,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:30:22,900 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:30:22,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:30:22,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:30:22,906 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:30:22,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:30:21" (1/2) ... [2024-10-15 15:30:22,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3357ddeb and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:22, skipping insertion in model container [2024-10-15 15:30:22,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:30:21" (1/2) ... [2024-10-15 15:30:22,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f365ed6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:22, skipping insertion in model container [2024-10-15 15:30:22,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:30:22" (2/2) ... [2024-10-15 15:30:22,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3357ddeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:22, skipping insertion in model container [2024-10-15 15:30:22,911 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:30:22" (2/2) ... [2024-10-15 15:30:22,918 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:30:22,922 INFO L1541 ArrayList]: Loop invariant at [L23-L27] (\old(x) <= 0) [2024-10-15 15:30:22,923 INFO L1541 ArrayList]: Function contract at [L5]: requires ((cond != 0) && (x <= 0)), ensures (((cond != 0) && (x <= 0)) && (x == \old(x))) [2024-10-15 15:30:22,923 INFO L1541 ArrayList]: Function contract at [L21]: requires (x <= 0), ensures (\old(x) <= 0) [2024-10-15 15:30:22,944 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:30:23,137 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/trex02-1.c[320,333] [2024-10-15 15:30:23,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:30:23,168 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-10-15 15:30:23,198 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/loops/trex02-1.c[320,333] Start Parsing Global Start Parsing Global Start Parsing Local [2024-10-15 15:30:23,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:30:23,215 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:30:23,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23 WrapperNode [2024-10-15 15:30:23,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:30:23,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:30:23,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:30:23,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:30:23,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23" (1/1) ... [2024-10-15 15:30:23,226 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23" (1/1) ... [2024-10-15 15:30:23,231 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:30:23,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:30:23,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:30:23,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:30:23,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:30:23,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23" (1/1) ... [2024-10-15 15:30:23,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23" (1/1) ... [2024-10-15 15:30:23,246 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23" (1/1) ... [2024-10-15 15:30:23,252 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure main is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-10-15 15:30:23,253 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23" (1/1) ... [2024-10-15 15:30:23,253 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23" (1/1) ... [2024-10-15 15:30:23,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23" (1/1) ... [2024-10-15 15:30:23,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23" (1/1) ... [2024-10-15 15:30:23,259 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23" (1/1) ... [2024-10-15 15:30:23,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23" (1/1) ... [2024-10-15 15:30:23,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:30:23,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:30:23,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:30:23,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:30:23,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23" (1/1) ... [2024-10-15 15:30:23,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:30:23,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:30:23,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-15 15:30:23,312 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-15 15:30:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:30:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2024-10-15 15:30:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2024-10-15 15:30:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:30:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:30:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-15 15:30:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:30:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:30:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:30:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:30:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-15 15:30:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-15 15:30:23,413 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:30:23,415 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:30:23,484 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-15 15:30:23,525 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-15 15:30:23,541 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:30:23,575 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:30:23,576 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-15 15:30:23,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:23 BoogieIcfgContainer [2024-10-15 15:30:23,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:30:23,577 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:30:23,577 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:30:23,578 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:30:23,578 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:30:21" (1/4) ... [2024-10-15 15:30:23,579 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1cdb3b90 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:30:23, skipping insertion in model container [2024-10-15 15:30:23,580 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:30:22" (2/4) ... [2024-10-15 15:30:23,580 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1cdb3b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:30:23, skipping insertion in model container [2024-10-15 15:30:23,580 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:23" (3/4) ... [2024-10-15 15:30:23,580 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1cdb3b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:30:23, skipping insertion in model container [2024-10-15 15:30:23,581 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:23" (4/4) ... [2024-10-15 15:30:23,582 INFO L79 RefereeObserver]: Analyzing ICFG trex02-1.c [2024-10-15 15:30:23,585 INFO L113 InvariantChecker]: Found 1 loops. [2024-10-15 15:30:23,586 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-10-15 15:30:23,586 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-3 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-10-15 15:30:23,586 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-10-15 15:30:23,586 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-10-15 15:30:23,586 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-10-15 15:30:23,586 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-10-15 15:30:23,587 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-10-15 15:30:23,587 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head, 2 loop-free subgraphs from loop head to error location [2024-10-15 15:30:23,622 INFO L309 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-10-15 15:30:23,623 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:23,623 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:23,624 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:23,625 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:23,626 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,632 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-10-15 15:30:23,636 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,636 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:23,637 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:23,637 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:23,641 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:23,655 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-10-15 15:30:23,671 INFO L309 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-10-15 15:30:23,672 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:23,672 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:23,672 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:23,672 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:23,672 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,675 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-10-15 15:30:23,676 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,676 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:23,676 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:23,676 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:23,677 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:23,680 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-3 to error location mainErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-10-15 15:30:23,686 INFO L309 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-10-15 15:30:23,687 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:23,687 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:23,687 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:23,687 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:23,687 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,688 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-10-15 15:30:23,688 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,689 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:23,689 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:23,689 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:23,689 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:23,693 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-10-15 15:30:23,702 INFO L309 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-10-15 15:30:23,703 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:23,703 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:23,703 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:23,705 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:23,705 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,707 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-10-15 15:30:23,708 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,708 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:23,708 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:23,708 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:23,709 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:23,711 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-10-15 15:30:23,723 INFO L309 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-10-15 15:30:23,727 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:23,727 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:23,727 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:23,728 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:23,728 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,748 INFO L101 BaseMinimizeStates]: Removed 15 edges and 6 locations by large block encoding [2024-10-15 15:30:23,749 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,752 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:23,752 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:23,752 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:23,756 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:23,758 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-10-15 15:30:23,764 INFO L309 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-10-15 15:30:23,765 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:23,765 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:23,765 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:23,765 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:23,765 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,770 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-10-15 15:30:23,770 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,770 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:23,771 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:23,772 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:23,773 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:23,775 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-10-15 15:30:23,782 INFO L309 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-10-15 15:30:23,782 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:23,783 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:23,783 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:23,783 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:23,783 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,784 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-10-15 15:30:23,784 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:23,784 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:23,784 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:23,784 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:23,785 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:23,789 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-10-15 15:30:23,792 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-10-15 15:30:23,792 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1cdb3b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 15.10 03:30:23, skipping insertion in model container [2024-10-15 15:30:23,793 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-10-15 15:30:23,794 INFO L158 Benchmark]: Toolchain (without parser) took 893.55ms. Allocated memory was 71.3MB in the beginning and 119.5MB in the end (delta: 48.2MB). Free memory was 49.9MB in the beginning and 70.8MB in the end (delta: -20.9MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2024-10-15 15:30:23,796 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 71.3MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:30:23,796 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 71.3MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:30:23,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.94ms. Allocated memory is still 71.3MB. Free memory was 49.7MB in the beginning and 35.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-15 15:30:23,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.63ms. Allocated memory is still 71.3MB. Free memory was 35.7MB in the beginning and 34.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:30:23,798 INFO L158 Benchmark]: Boogie Preprocessor took 28.08ms. Allocated memory is still 71.3MB. Free memory was 34.7MB in the beginning and 33.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:30:23,799 INFO L158 Benchmark]: RCFGBuilder took 315.79ms. Allocated memory was 71.3MB in the beginning and 119.5MB in the end (delta: 48.2MB). Free memory was 33.1MB in the beginning and 89.6MB in the end (delta: -56.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-15 15:30:23,799 INFO L158 Benchmark]: Referee took 215.28ms. Allocated memory is still 119.5MB. Free memory was 89.6MB in the beginning and 70.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-15 15:30:23,802 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness. Annotation is a valid proof of correctness. Annotation is valid for all loop-free paths from loop head at line 23 to loop head at line 23. 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 23 to check that procedure precondition always holds at line 23. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 23. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 7. Annotation is valid for all loop-free paths from loop head at line 23 to exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.19ms. Allocated memory is still 71.3MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.33ms. Allocated memory is still 71.3MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.94ms. Allocated memory is still 71.3MB. Free memory was 49.7MB in the beginning and 35.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 15.63ms. Allocated memory is still 71.3MB. Free memory was 35.7MB in the beginning and 34.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.08ms. Allocated memory is still 71.3MB. Free memory was 34.7MB in the beginning and 33.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 315.79ms. Allocated memory was 71.3MB in the beginning and 119.5MB in the end (delta: 48.2MB). Free memory was 33.1MB in the beginning and 89.6MB in the end (delta: -56.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Referee took 215.28ms. Allocated memory is still 119.5MB. Free memory was 89.6MB in the beginning and 70.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-10-15 15:30:23,830 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...