./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/id_trans.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9640252219dbe99a02ddc5a359ea6c8aea25fb45 .................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-8bd4bc6 [2020-07-28 18:16:20,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:16:20,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:16:20,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:16:20,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:16:20,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:16:20,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:16:20,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:16:20,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:16:20,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:16:20,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:16:20,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:16:20,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:16:20,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:16:20,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:16:20,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:16:20,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:16:20,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:16:20,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:16:20,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:16:20,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:16:20,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:16:20,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:16:20,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:16:21,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:16:21,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:16:21,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:16:21,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:16:21,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:16:21,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:16:21,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:16:21,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:16:21,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:16:21,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:16:21,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:16:21,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:16:21,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:16:21,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:16:21,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:16:21,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:16:21,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:16:21,012 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:16:21,028 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:16:21,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:16:21,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:16:21,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:16:21,030 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:16:21,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:16:21,031 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:16:21,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:16:21,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:16:21,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:16:21,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:16:21,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:16:21,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:16:21,033 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:16:21,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:16:21,034 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:16:21,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:16:21,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:16:21,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:16:21,035 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:16:21,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:16:21,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:16:21,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:16:21,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:16:21,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:16:21,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:16:21,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:16:21,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:16:21,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:16:21,038 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(__VERIFIER_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 -> 9640252219dbe99a02ddc5a359ea6c8aea25fb45 [2020-07-28 18:16:21,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:16:21,458 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:16:21,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:16:21,463 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:16:21,463 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:16:21,464 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/id_trans.i [2020-07-28 18:16:21,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9ca03b0/b13f9e979f7547d39670f46b8d789e3c/FLAG23484533e [2020-07-28 18:16:21,965 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:16:21,966 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_trans.i [2020-07-28 18:16:21,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9ca03b0/b13f9e979f7547d39670f46b8d789e3c/FLAG23484533e [2020-07-28 18:16:22,306 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9ca03b0/b13f9e979f7547d39670f46b8d789e3c [2020-07-28 18:16:22,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:16:22,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:16:22,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:16:22,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:16:22,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:16:22,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:16:22" (1/1) ... [2020-07-28 18:16:22,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c7a1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:16:22, skipping insertion in model container [2020-07-28 18:16:22,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:16:22" (1/1) ... [2020-07-28 18:16:22,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:16:22,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:16:22,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:16:22,541 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:16:22,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:16:22,578 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:16:22,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:16:22 WrapperNode [2020-07-28 18:16:22,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:16:22,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:16:22,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:16:22,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:16:22,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:16:22" (1/1) ... [2020-07-28 18:16:22,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:16:22" (1/1) ... [2020-07-28 18:16:22,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:16:22,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:16:22,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:16:22,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:16:22,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:16:22" (1/1) ... [2020-07-28 18:16:22,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:16:22" (1/1) ... [2020-07-28 18:16:22,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:16:22" (1/1) ... [2020-07-28 18:16:22,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:16:22" (1/1) ... [2020-07-28 18:16:22,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:16:22" (1/1) ... [2020-07-28 18:16:22,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:16:22" (1/1) ... [2020-07-28 18:16:22,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:16:22" (1/1) ... [2020-07-28 18:16:22,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:16:22,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:16:22,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:16:22,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:16:22,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:16:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:16:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:16:22,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:16:23,117 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:16:23,117 INFO L295 CfgBuilder]: Removed 13 assume(true) statements. [2020-07-28 18:16:23,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:16:23 BoogieIcfgContainer [2020-07-28 18:16:23,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:16:23,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:16:23,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:16:23,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:16:23,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:16:22" (1/3) ... [2020-07-28 18:16:23,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291686ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:16:23, skipping insertion in model container [2020-07-28 18:16:23,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:16:22" (2/3) ... [2020-07-28 18:16:23,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291686ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:16:23, skipping insertion in model container [2020-07-28 18:16:23,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:16:23" (3/3) ... [2020-07-28 18:16:23,131 INFO L109 eAbstractionObserver]: Analyzing ICFG id_trans.i [2020-07-28 18:16:23,143 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:16:23,151 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-07-28 18:16:23,166 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 18:16:23,190 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:16:23,191 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:16:23,191 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:16:23,191 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:16:23,191 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:16:23,191 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:16:23,192 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:16:23,192 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:16:23,209 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-28 18:16:23,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-28 18:16:23,215 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:16:23,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-28 18:16:23,217 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:16:23,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:16:23,223 INFO L82 PathProgramCache]: Analyzing trace with hash 29745418, now seen corresponding path program 1 times [2020-07-28 18:16:23,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:16:23,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815594398] [2020-07-28 18:16:23,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:16:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:16:23,496 INFO L280 TraceCheckUtils]: 0: Hoare triple {26#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_~idBitLength~0, main_~material_length~0, main_~nlen~0, main_~j~0, main_~k~0;havoc main_~idBitLength~0;havoc main_~material_length~0;havoc main_~nlen~0;havoc main_~j~0;havoc main_~k~0;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~nlen~0 := main_#t~nondet0;havoc main_#t~nondet0;assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647;main_~idBitLength~0 := main_#t~nondet1;havoc main_#t~nondet1;assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647;main_~material_length~0 := main_#t~nondet2;havoc main_#t~nondet2; {26#true} is VALID [2020-07-28 18:16:23,498 INFO L280 TraceCheckUtils]: 1: Hoare triple {26#true} assume !!(main_~nlen~0 == (if main_~idBitLength~0 < 0 && 0 != main_~idBitLength~0 % 32 then 1 + main_~idBitLength~0 / 32 else main_~idBitLength~0 / 32));main_~j~0 := 0; {28#(<= 0 ULTIMATE.start_main_~j~0)} is VALID [2020-07-28 18:16:23,500 INFO L280 TraceCheckUtils]: 2: Hoare triple {28#(<= 0 ULTIMATE.start_main_~j~0)} assume !!(main_~j~0 < (if main_~idBitLength~0 < 0 && 0 != main_~idBitLength~0 % 8 then 1 + main_~idBitLength~0 / 8 else main_~idBitLength~0 / 8) && main_~j~0 < main_~material_length~0);__VERIFIER_assert_#in~cond := (if 0 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {29#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} is VALID [2020-07-28 18:16:23,502 INFO L280 TraceCheckUtils]: 3: Hoare triple {29#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} assume 0 == __VERIFIER_assert_~cond; {27#false} is VALID [2020-07-28 18:16:23,502 INFO L280 TraceCheckUtils]: 4: Hoare triple {27#false} assume !false; {27#false} is VALID [2020-07-28 18:16:23,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:16:23,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815594398] [2020-07-28 18:16:23,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:16:23,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:16:23,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365005367] [2020-07-28 18:16:23,515 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-07-28 18:16:23,516 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:16:23,521 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 18:16:23,534 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:16:23,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 18:16:23,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:16:23,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 18:16:23,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 18:16:23,547 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2020-07-28 18:16:23,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:16:23,726 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2020-07-28 18:16:23,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 18:16:23,727 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-07-28 18:16:23,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:16:23,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:16:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 59 transitions. [2020-07-28 18:16:23,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:16:23,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 59 transitions. [2020-07-28 18:16:23,741 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 59 transitions. [2020-07-28 18:16:23,839 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:16:23,850 INFO L225 Difference]: With dead ends: 48 [2020-07-28 18:16:23,851 INFO L226 Difference]: Without dead ends: 16 [2020-07-28 18:16:23,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:16:23,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-07-28 18:16:23,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2020-07-28 18:16:23,899 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:16:23,899 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand 15 states. [2020-07-28 18:16:23,900 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 15 states. [2020-07-28 18:16:23,900 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 15 states. [2020-07-28 18:16:23,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:16:23,904 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-07-28 18:16:23,904 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-07-28 18:16:23,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:16:23,905 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:16:23,905 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 16 states. [2020-07-28 18:16:23,905 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 16 states. [2020-07-28 18:16:23,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:16:23,908 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-07-28 18:16:23,908 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-07-28 18:16:23,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:16:23,909 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:16:23,909 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:16:23,909 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:16:23,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 18:16:23,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-07-28 18:16:23,913 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2020-07-28 18:16:23,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:16:23,913 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-07-28 18:16:23,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 18:16:23,914 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-28 18:16:23,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 18:16:23,914 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:16:23,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:16:23,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:16:23,915 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:16:23,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:16:23,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1479268755, now seen corresponding path program 1 times [2020-07-28 18:16:23,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:16:23,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201736932] [2020-07-28 18:16:23,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:16:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:16:23,992 INFO L280 TraceCheckUtils]: 0: Hoare triple {149#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_~idBitLength~0, main_~material_length~0, main_~nlen~0, main_~j~0, main_~k~0;havoc main_~idBitLength~0;havoc main_~material_length~0;havoc main_~nlen~0;havoc main_~j~0;havoc main_~k~0;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~nlen~0 := main_#t~nondet0;havoc main_#t~nondet0;assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647;main_~idBitLength~0 := main_#t~nondet1;havoc main_#t~nondet1;assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647;main_~material_length~0 := main_#t~nondet2;havoc main_#t~nondet2; {149#true} is VALID [2020-07-28 18:16:23,992 INFO L280 TraceCheckUtils]: 1: Hoare triple {149#true} assume !!(main_~nlen~0 == (if main_~idBitLength~0 < 0 && 0 != main_~idBitLength~0 % 32 then 1 + main_~idBitLength~0 / 32 else main_~idBitLength~0 / 32));main_~j~0 := 0; {149#true} is VALID [2020-07-28 18:16:23,994 INFO L280 TraceCheckUtils]: 2: Hoare triple {149#true} assume !!(main_~j~0 < (if main_~idBitLength~0 < 0 && 0 != main_~idBitLength~0 % 8 then 1 + main_~idBitLength~0 / 8 else main_~idBitLength~0 / 8) && main_~j~0 < main_~material_length~0);__VERIFIER_assert_#in~cond := (if 0 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {151#(< ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~material_length~0)} is VALID [2020-07-28 18:16:23,995 INFO L280 TraceCheckUtils]: 3: Hoare triple {151#(< ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~material_length~0)} assume !(0 == __VERIFIER_assert_~cond); {151#(< ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~material_length~0)} is VALID [2020-07-28 18:16:23,996 INFO L280 TraceCheckUtils]: 4: Hoare triple {151#(< ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~material_length~0)} __VERIFIER_assert_#in~cond := (if main_~j~0 < main_~material_length~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {152#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} is VALID [2020-07-28 18:16:23,997 INFO L280 TraceCheckUtils]: 5: Hoare triple {152#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} assume 0 == __VERIFIER_assert_~cond; {150#false} is VALID [2020-07-28 18:16:23,997 INFO L280 TraceCheckUtils]: 6: Hoare triple {150#false} assume !false; {150#false} is VALID [2020-07-28 18:16:23,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:16:23,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201736932] [2020-07-28 18:16:23,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:16:23,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:16:23,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820275642] [2020-07-28 18:16:24,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-07-28 18:16:24,002 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:16:24,002 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 18:16:24,014 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:16:24,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 18:16:24,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:16:24,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 18:16:24,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 18:16:24,016 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2020-07-28 18:16:24,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:16:24,125 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-07-28 18:16:24,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 18:16:24,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-07-28 18:16:24,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:16:24,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:16:24,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2020-07-28 18:16:24,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:16:24,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2020-07-28 18:16:24,129 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 16 transitions. [2020-07-28 18:16:24,156 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:16:24,157 INFO L225 Difference]: With dead ends: 16 [2020-07-28 18:16:24,157 INFO L226 Difference]: Without dead ends: 14 [2020-07-28 18:16:24,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:16:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-07-28 18:16:24,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-07-28 18:16:24,175 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:16:24,175 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand 13 states. [2020-07-28 18:16:24,175 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 13 states. [2020-07-28 18:16:24,176 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 13 states. [2020-07-28 18:16:24,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:16:24,177 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-07-28 18:16:24,178 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-07-28 18:16:24,179 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:16:24,179 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:16:24,179 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 14 states. [2020-07-28 18:16:24,179 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 14 states. [2020-07-28 18:16:24,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:16:24,181 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-07-28 18:16:24,182 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-07-28 18:16:24,182 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:16:24,182 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:16:24,183 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:16:24,183 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:16:24,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-28 18:16:24,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-07-28 18:16:24,185 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-07-28 18:16:24,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:16:24,186 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-07-28 18:16:24,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 18:16:24,186 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-28 18:16:24,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 18:16:24,187 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:16:24,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:16:24,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 18:16:24,188 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:16:24,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:16:24,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1002264813, now seen corresponding path program 1 times [2020-07-28 18:16:24,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:16:24,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417679007] [2020-07-28 18:16:24,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:16:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:16:24,227 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:16:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:16:24,274 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:16:24,295 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 18:16:24,295 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 18:16:24,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 18:16:24,317 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 18:16:24,317 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-28 18:16:24,317 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-28 18:16:24,318 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 18:16:24,318 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-28 18:16:24,318 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-28 18:16:24,318 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-28 18:16:24,318 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:16:24,319 WARN L170 areAnnotationChecker]: L20-3 has no Hoare annotation [2020-07-28 18:16:24,319 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 18:16:24,319 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 18:16:24,319 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 18:16:24,319 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 18:16:24,319 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2020-07-28 18:16:24,320 WARN L170 areAnnotationChecker]: L7-3 has no Hoare annotation [2020-07-28 18:16:24,320 WARN L170 areAnnotationChecker]: L7-3 has no Hoare annotation [2020-07-28 18:16:24,320 WARN L170 areAnnotationChecker]: L8-1 has no Hoare annotation [2020-07-28 18:16:24,320 WARN L170 areAnnotationChecker]: L8-1 has no Hoare annotation [2020-07-28 18:16:24,320 WARN L170 areAnnotationChecker]: L7-5 has no Hoare annotation [2020-07-28 18:16:24,320 WARN L170 areAnnotationChecker]: L7-6 has no Hoare annotation [2020-07-28 18:16:24,321 WARN L170 areAnnotationChecker]: L7-6 has no Hoare annotation [2020-07-28 18:16:24,321 WARN L170 areAnnotationChecker]: L8-2 has no Hoare annotation [2020-07-28 18:16:24,321 WARN L170 areAnnotationChecker]: L8-2 has no Hoare annotation [2020-07-28 18:16:24,321 WARN L170 areAnnotationChecker]: L7-8 has no Hoare annotation [2020-07-28 18:16:24,321 WARN L170 areAnnotationChecker]: L7-9 has no Hoare annotation [2020-07-28 18:16:24,322 WARN L170 areAnnotationChecker]: L7-9 has no Hoare annotation [2020-07-28 18:16:24,322 WARN L170 areAnnotationChecker]: L8-3 has no Hoare annotation [2020-07-28 18:16:24,322 WARN L170 areAnnotationChecker]: L8-3 has no Hoare annotation [2020-07-28 18:16:24,322 WARN L170 areAnnotationChecker]: L7-11 has no Hoare annotation [2020-07-28 18:16:24,322 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 18:16:24,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 06:16:24 BoogieIcfgContainer [2020-07-28 18:16:24,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 18:16:24,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 18:16:24,326 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 18:16:24,326 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 18:16:24,327 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:16:23" (3/4) ... [2020-07-28 18:16:24,330 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 18:16:24,379 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 18:16:24,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 18:16:24,383 INFO L168 Benchmark]: Toolchain (without parser) took 2072.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 961.6 MB in the beginning and 996.2 MB in the end (delta: -34.6 MB). Peak memory consumption was 89.1 MB. Max. memory is 11.5 GB. [2020-07-28 18:16:24,384 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:16:24,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.59 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:16:24,385 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.78 ms. Allocated memory is still 1.0 GB. Free memory is still 950.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:16:24,386 INFO L168 Benchmark]: Boogie Preprocessor took 88.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2020-07-28 18:16:24,387 INFO L168 Benchmark]: RCFGBuilder took 409.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2020-07-28 18:16:24,388 INFO L168 Benchmark]: TraceAbstraction took 1201.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 91.2 MB). Peak memory consumption was 91.2 MB. Max. memory is 11.5 GB. [2020-07-28 18:16:24,388 INFO L168 Benchmark]: Witness Printer took 54.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 996.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-07-28 18:16:24,392 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 266.59 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.78 ms. Allocated memory is still 1.0 GB. Free memory is still 950.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 409.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1201.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 91.2 MB). Peak memory consumption was 91.2 MB. Max. memory is 11.5 GB. * Witness Printer took 54.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 996.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int idBitLength, material_length, nlen; [L15] int j, k; [L16] nlen = __VERIFIER_nondet_int() [L17] idBitLength = __VERIFIER_nondet_int() [L18] material_length = __VERIFIER_nondet_int() [L19] COND FALSE !(!( nlen == idBitLength / 32 )) [L20] j = 0 [L20] COND TRUE (j < idBitLength / 8) && (j < material_length) [L7] COND FALSE !(!(cond)) [L7] COND FALSE !(!(cond)) [L7] COND FALSE !(!(cond)) [L7] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 25 SDslu, 16 SDs, 0 SdLazy, 29 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 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! Received shutdown request...