./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/id_trans.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-invgen/id_trans.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b2585982366e12850b78353d5a08eef796173b16 ............................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 03:41:11,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 03:41:11,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 03:41:11,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 03:41:11,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 03:41:11,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 03:41:11,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 03:41:11,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 03:41:11,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 03:41:11,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 03:41:11,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 03:41:11,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 03:41:11,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 03:41:11,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 03:41:11,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 03:41:11,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 03:41:11,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 03:41:11,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 03:41:11,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 03:41:11,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 03:41:11,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 03:41:11,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 03:41:11,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 03:41:11,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 03:41:11,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 03:41:11,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 03:41:11,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 03:41:11,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 03:41:11,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 03:41:11,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 03:41:11,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 03:41:11,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 03:41:11,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 03:41:11,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 03:41:11,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 03:41:11,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 03:41:11,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 03:41:11,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 03:41:11,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 03:41:11,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 03:41:11,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 03:41:11,164 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 03:41:11,195 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 03:41:11,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 03:41:11,197 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 03:41:11,197 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 03:41:11,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 03:41:11,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 03:41:11,199 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 03:41:11,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 03:41:11,199 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 03:41:11,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 03:41:11,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 03:41:11,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 03:41:11,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 03:41:11,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 03:41:11,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 03:41:11,201 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 03:41:11,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 03:41:11,201 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 03:41:11,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 03:41:11,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 03:41:11,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 03:41:11,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 03:41:11,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 03:41:11,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 03:41:11,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 03:41:11,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 03:41:11,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 03:41:11,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 03:41:11,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 03:41:11,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 03:41:11,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2585982366e12850b78353d5a08eef796173b16 [2021-08-26 03:41:11,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 03:41:11,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 03:41:11,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 03:41:11,463 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 03:41:11,463 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 03:41:11,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/id_trans.i [2021-08-26 03:41:11,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04055f2b9/6e9dba719b004f1aa242520c0deccb75/FLAG9dd6d7714 [2021-08-26 03:41:11,862 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 03:41:11,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_trans.i [2021-08-26 03:41:11,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04055f2b9/6e9dba719b004f1aa242520c0deccb75/FLAG9dd6d7714 [2021-08-26 03:41:12,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04055f2b9/6e9dba719b004f1aa242520c0deccb75 [2021-08-26 03:41:12,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 03:41:12,285 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 03:41:12,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 03:41:12,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 03:41:12,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 03:41:12,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:41:12" (1/1) ... [2021-08-26 03:41:12,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cdd6d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:41:12, skipping insertion in model container [2021-08-26 03:41:12,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:41:12" (1/1) ... [2021-08-26 03:41:12,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 03:41:12,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 03:41:12,401 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_trans.i[893,906] [2021-08-26 03:41:12,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 03:41:12,422 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 03:41:12,432 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_trans.i[893,906] [2021-08-26 03:41:12,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 03:41:12,457 INFO L208 MainTranslator]: Completed translation [2021-08-26 03:41:12,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:41:12 WrapperNode [2021-08-26 03:41:12,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 03:41:12,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 03:41:12,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 03:41:12,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 03:41:12,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:41:12" (1/1) ... [2021-08-26 03:41:12,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:41:12" (1/1) ... [2021-08-26 03:41:12,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 03:41:12,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 03:41:12,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 03:41:12,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 03:41:12,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:41:12" (1/1) ... [2021-08-26 03:41:12,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:41:12" (1/1) ... [2021-08-26 03:41:12,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:41:12" (1/1) ... [2021-08-26 03:41:12,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:41:12" (1/1) ... [2021-08-26 03:41:12,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:41:12" (1/1) ... [2021-08-26 03:41:12,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:41:12" (1/1) ... [2021-08-26 03:41:12,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:41:12" (1/1) ... [2021-08-26 03:41:12,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 03:41:12,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 03:41:12,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 03:41:12,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 03:41:12,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:41:12" (1/1) ... [2021-08-26 03:41:12,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 03:41:12,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 03:41:12,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 03:41:12,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 03:41:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 03:41:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 03:41:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 03:41:12,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 03:41:12,778 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 03:41:12,778 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-08-26 03:41:12,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:41:12 BoogieIcfgContainer [2021-08-26 03:41:12,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 03:41:12,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 03:41:12,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 03:41:12,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 03:41:12,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 03:41:12" (1/3) ... [2021-08-26 03:41:12,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2dc8e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:41:12, skipping insertion in model container [2021-08-26 03:41:12,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:41:12" (2/3) ... [2021-08-26 03:41:12,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2dc8e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:41:12, skipping insertion in model container [2021-08-26 03:41:12,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:41:12" (3/3) ... [2021-08-26 03:41:12,784 INFO L111 eAbstractionObserver]: Analyzing ICFG id_trans.i [2021-08-26 03:41:12,787 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 03:41:12,787 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-26 03:41:12,833 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 03:41:12,837 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 03:41:12,837 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-26 03:41:12,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 23 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:41:12,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-26 03:41:12,849 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:41:12,849 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-26 03:41:12,849 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 03:41:12,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:41:12,853 INFO L82 PathProgramCache]: Analyzing trace with hash 889574253, now seen corresponding path program 1 times [2021-08-26 03:41:12,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:41:12,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618178353] [2021-08-26 03:41:12,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:41:12,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:41:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:41:13,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:41:13,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:41:13,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618178353] [2021-08-26 03:41:13,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618178353] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:41:13,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:41:13,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 03:41:13,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315889994] [2021-08-26 03:41:13,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 03:41:13,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:41:13,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 03:41:13,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 03:41:13,064 INFO L87 Difference]: Start difference. First operand has 24 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 23 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:41:13,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:41:13,134 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2021-08-26 03:41:13,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 03:41:13,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-08-26 03:41:13,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:41:13,141 INFO L225 Difference]: With dead ends: 49 [2021-08-26 03:41:13,141 INFO L226 Difference]: Without dead ends: 17 [2021-08-26 03:41:13,143 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 03:41:13,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-08-26 03:41:13,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-08-26 03:41:13,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:41:13,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-08-26 03:41:13,166 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 6 [2021-08-26 03:41:13,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:41:13,167 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-08-26 03:41:13,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:41:13,168 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-08-26 03:41:13,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-26 03:41:13,168 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:41:13,169 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:41:13,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 03:41:13,169 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 03:41:13,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:41:13,173 INFO L82 PathProgramCache]: Analyzing trace with hash 182520880, now seen corresponding path program 1 times [2021-08-26 03:41:13,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:41:13,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131953944] [2021-08-26 03:41:13,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:41:13,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:41:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:41:13,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:41:13,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:41:13,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131953944] [2021-08-26 03:41:13,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131953944] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:41:13,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:41:13,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 03:41:13,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31843667] [2021-08-26 03:41:13,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 03:41:13,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:41:13,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 03:41:13,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 03:41:13,234 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:41:13,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:41:13,258 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-08-26 03:41:13,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 03:41:13,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-26 03:41:13,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:41:13,259 INFO L225 Difference]: With dead ends: 17 [2021-08-26 03:41:13,259 INFO L226 Difference]: Without dead ends: 15 [2021-08-26 03:41:13,259 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 03:41:13,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-08-26 03:41:13,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-08-26 03:41:13,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:41:13,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-08-26 03:41:13,262 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2021-08-26 03:41:13,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:41:13,262 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-08-26 03:41:13,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:41:13,263 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-08-26 03:41:13,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-26 03:41:13,263 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:41:13,263 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:41:13,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 03:41:13,264 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 03:41:13,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:41:13,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1729194902, now seen corresponding path program 1 times [2021-08-26 03:41:13,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:41:13,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754544254] [2021-08-26 03:41:13,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:41:13,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:41:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 03:41:13,281 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 03:41:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 03:41:13,319 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 03:41:13,320 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 03:41:13,321 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:41:13,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:41:13,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:41:13,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:41:13,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 03:41:13,327 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 03:41:13,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 03:41:13 BoogieIcfgContainer [2021-08-26 03:41:13,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 03:41:13,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 03:41:13,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 03:41:13,347 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 03:41:13,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:41:12" (3/4) ... [2021-08-26 03:41:13,349 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-26 03:41:13,370 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 03:41:13,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 03:41:13,372 INFO L168 Benchmark]: Toolchain (without parser) took 1085.81 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.6 MB in the beginning and 47.0 MB in the end (delta: -13.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:41:13,372 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 54.5 MB. Free memory was 36.6 MB in the beginning and 36.5 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:41:13,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.17 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.3 MB in the beginning and 51.5 MB in the end (delta: -18.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2021-08-26 03:41:13,373 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.16 ms. Allocated memory is still 67.1 MB. Free memory was 51.5 MB in the beginning and 49.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 03:41:13,373 INFO L168 Benchmark]: Boogie Preprocessor took 13.65 ms. Allocated memory is still 67.1 MB. Free memory was 49.9 MB in the beginning and 48.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:41:13,374 INFO L168 Benchmark]: RCFGBuilder took 270.17 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 35.4 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 03:41:13,374 INFO L168 Benchmark]: TraceAbstraction took 566.22 ms. Allocated memory is still 67.1 MB. Free memory was 35.0 MB in the beginning and 49.1 MB in the end (delta: -14.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-08-26 03:41:13,374 INFO L168 Benchmark]: Witness Printer took 23.65 ms. Allocated memory is still 67.1 MB. Free memory was 49.1 MB in the beginning and 47.0 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:41:13,376 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 54.5 MB. Free memory was 36.6 MB in the beginning and 36.5 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 171.17 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.3 MB in the beginning and 51.5 MB in the end (delta: -18.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.16 ms. Allocated memory is still 67.1 MB. Free memory was 51.5 MB in the beginning and 49.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 13.65 ms. Allocated memory is still 67.1 MB. Free memory was 49.9 MB in the beginning and 48.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 270.17 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 35.4 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 566.22 ms. Allocated memory is still 67.1 MB. Free memory was 35.0 MB in the beginning and 49.1 MB in the end (delta: -14.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Witness Printer took 23.65 ms. Allocated memory is still 67.1 MB. Free memory was 49.1 MB in the beginning and 47.0 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int idBitLength, material_length, nlen; [L26] int j, k; [L27] nlen = __VERIFIER_nondet_int() [L28] idBitLength = __VERIFIER_nondet_int() [L29] material_length = __VERIFIER_nondet_int() [L30] COND FALSE !(!( nlen == idBitLength / 32 )) [L31] j = 0 [L31] COND TRUE (j < idBitLength / 8) && (j < material_length) [L18] COND FALSE !(!(cond)) [L18] COND FALSE !(!(cond)) [L18] COND FALSE !(!(cond)) [L18] COND TRUE !(cond) [L19] reach_error() - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 494.3ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 6.0ms, AutomataDifference: 118.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 28 SDtfs, 25 SDslu, 20 SDs, 0 SdLazy, 29 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 17.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.9ms SsaConstructionTime, 72.1ms SatisfiabilityAnalysisTime, 117.8ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-26 03:41:13,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...