./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/trex03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/loops/trex03-1.c -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 6afe57eec1ae7b7a346bea173d21fd3ac6dfbe03 ................................................................................................................................................................................................................................................................. 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 0.1.24-678e011 [2019-11-19 21:15:59,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:15:59,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:15:59,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:15:59,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:15:59,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:15:59,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:16:00,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:16:00,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:16:00,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:16:00,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:16:00,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:16:00,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:16:00,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:16:00,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:16:00,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:16:00,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:16:00,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:16:00,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:16:00,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:16:00,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:16:00,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:16:00,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:16:00,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:16:00,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:16:00,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:16:00,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:16:00,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:16:00,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:16:00,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:16:00,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:16:00,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:16:00,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:16:00,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:16:00,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:16:00,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:16:00,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:16:00,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:16:00,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:16:00,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:16:00,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:16:00,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 21:16:00,059 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:16:00,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:16:00,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:16:00,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:16:00,061 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:16:00,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:16:00,062 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:16:00,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 21:16:00,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:16:00,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:16:00,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:16:00,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:16:00,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:16:00,065 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:16:00,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:16:00,065 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:16:00,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:16:00,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:16:00,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:16:00,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:16:00,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:16:00,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:16:00,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:16:00,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:16:00,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:16:00,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 21:16:00,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 21:16:00,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:16:00,070 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 -> 6afe57eec1ae7b7a346bea173d21fd3ac6dfbe03 [2019-11-19 21:16:00,405 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:16:00,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:16:00,422 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:16:00,423 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:16:00,424 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:16:00,425 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/trex03-1.c [2019-11-19 21:16:00,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a6da17a6/9c4ea3dec5a54d279dab1a66444df608/FLAGb837fe720 [2019-11-19 21:16:00,969 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:16:00,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/trex03-1.c [2019-11-19 21:16:00,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a6da17a6/9c4ea3dec5a54d279dab1a66444df608/FLAGb837fe720 [2019-11-19 21:16:01,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a6da17a6/9c4ea3dec5a54d279dab1a66444df608 [2019-11-19 21:16:01,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:16:01,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:16:01,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:16:01,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:16:01,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:16:01,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:16:01" (1/1) ... [2019-11-19 21:16:01,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611a7384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:01, skipping insertion in model container [2019-11-19 21:16:01,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:16:01" (1/1) ... [2019-11-19 21:16:01,381 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:16:01,402 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:16:01,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:16:01,632 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:16:01,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:16:01,669 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:16:01,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:01 WrapperNode [2019-11-19 21:16:01,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:16:01,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:16:01,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:16:01,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:16:01,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:01" (1/1) ... [2019-11-19 21:16:01,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:01" (1/1) ... [2019-11-19 21:16:01,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:16:01,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:16:01,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:16:01,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:16:01,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:01" (1/1) ... [2019-11-19 21:16:01,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:01" (1/1) ... [2019-11-19 21:16:01,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:01" (1/1) ... [2019-11-19 21:16:01,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:01" (1/1) ... [2019-11-19 21:16:01,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:01" (1/1) ... [2019-11-19 21:16:01,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:01" (1/1) ... [2019-11-19 21:16:01,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:01" (1/1) ... [2019-11-19 21:16:01,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:16:01,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:16:01,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:16:01,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:16:01,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:01" (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 [2019-11-19 21:16:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:16:01,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:16:02,033 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:16:02,034 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-19 21:16:02,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:16:02 BoogieIcfgContainer [2019-11-19 21:16:02,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:16:02,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:16:02,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:16:02,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:16:02,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:16:01" (1/3) ... [2019-11-19 21:16:02,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56dfd76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:16:02, skipping insertion in model container [2019-11-19 21:16:02,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:01" (2/3) ... [2019-11-19 21:16:02,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56dfd76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:16:02, skipping insertion in model container [2019-11-19 21:16:02,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:16:02" (3/3) ... [2019-11-19 21:16:02,044 INFO L109 eAbstractionObserver]: Analyzing ICFG trex03-1.c [2019-11-19 21:16:02,052 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:16:02,058 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 21:16:02,070 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 21:16:02,093 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:16:02,093 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:16:02,094 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:16:02,094 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:16:02,094 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:16:02,094 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:16:02,094 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:16:02,094 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:16:02,106 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-19 21:16:02,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 21:16:02,110 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:16:02,111 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 21:16:02,111 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:16:02,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:16:02,116 INFO L82 PathProgramCache]: Analyzing trace with hash 30293572, now seen corresponding path program 1 times [2019-11-19 21:16:02,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:16:02,123 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594565863] [2019-11-19 21:16:02,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:16:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:16:02,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:16:02,224 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594565863] [2019-11-19 21:16:02,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:16:02,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 21:16:02,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596450032] [2019-11-19 21:16:02,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 21:16:02,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:16:02,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 21:16:02,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:16:02,248 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2019-11-19 21:16:02,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:16:02,265 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-11-19 21:16:02,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 21:16:02,267 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-11-19 21:16:02,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:16:02,277 INFO L225 Difference]: With dead ends: 21 [2019-11-19 21:16:02,277 INFO L226 Difference]: Without dead ends: 9 [2019-11-19 21:16:02,281 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:16:02,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-19 21:16:02,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-19 21:16:02,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-19 21:16:02,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2019-11-19 21:16:02,317 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 5 [2019-11-19 21:16:02,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:16:02,318 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2019-11-19 21:16:02,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 21:16:02,318 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2019-11-19 21:16:02,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 21:16:02,319 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:16:02,319 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 21:16:02,319 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:16:02,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:16:02,320 INFO L82 PathProgramCache]: Analyzing trace with hash 29816916, now seen corresponding path program 1 times [2019-11-19 21:16:02,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:16:02,320 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874284376] [2019-11-19 21:16:02,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:16:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:16:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:16:02,391 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 21:16:02,391 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 21:16:02,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:16:02 BoogieIcfgContainer [2019-11-19 21:16:02,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:16:02,414 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:16:02,414 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:16:02,415 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:16:02,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:16:02" (3/4) ... [2019-11-19 21:16:02,419 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 21:16:02,469 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 21:16:02,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:16:02,473 INFO L168 Benchmark]: Toolchain (without parser) took 1107.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -96.5 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. [2019-11-19 21:16:02,473 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:16:02,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.32 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 940.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-19 21:16:02,475 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -153.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:16:02,476 INFO L168 Benchmark]: Boogie Preprocessor took 20.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:16:02,477 INFO L168 Benchmark]: RCFGBuilder took 249.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. [2019-11-19 21:16:02,478 INFO L168 Benchmark]: TraceAbstraction took 376.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-19 21:16:02,479 INFO L168 Benchmark]: Witness Printer took 55.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:16:02,484 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.32 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 940.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -153.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 249.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 376.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 55.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L16] unsigned int d1=1, d2=1, d3=1; [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L19] COND FALSE !(x1>0 && x2>0 && x3>0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...