./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test02.c --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/ldv-regression/test02.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 4dac52ac01526cd7c5a6c950ddf0191864040fa0 ............................................................................................................................................................................................................................................... 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 17:58:21,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:58:21,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:58:21,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:58:21,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:58:21,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:58:21,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:58:21,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:58:21,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:58:21,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:58:21,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:58:21,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:58:21,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:58:21,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:58:21,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:58:21,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:58:21,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:58:21,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:58:21,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:58:21,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:58:21,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:58:21,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:58:21,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:58:21,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:58:21,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:58:21,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:58:21,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:58:21,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:58:21,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:58:21,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:58:21,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:58:21,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:58:21,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:58:21,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:58:21,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:58:21,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:58:21,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:58:21,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:58:21,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:58:21,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:58:21,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:58:21,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:58:21,932 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:58:21,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:58:21,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:58:21,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:58:21,934 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:58:21,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:58:21,935 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:58:21,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:58:21,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:58:21,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:58:21,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:58:21,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:58:21,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:58:21,938 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:58:21,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:58:21,938 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:58:21,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:58:21,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:58:21,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:58:21,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:58:21,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:58:21,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:58:21,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:58:21,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:58:21,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:58:21,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:58:21,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:58:21,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:58:21,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:58:21,941 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 -> 4dac52ac01526cd7c5a6c950ddf0191864040fa0 [2020-07-28 17:58:22,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:58:22,262 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:58:22,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:58:22,268 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:58:22,268 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:58:22,269 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test02.c [2020-07-28 17:58:22,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a201ab7c/04b24544097b4162a8c7e92f4c762c7f/FLAGe73b385fe [2020-07-28 17:58:22,763 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:58:22,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test02.c [2020-07-28 17:58:22,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a201ab7c/04b24544097b4162a8c7e92f4c762c7f/FLAGe73b385fe [2020-07-28 17:58:23,086 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a201ab7c/04b24544097b4162a8c7e92f4c762c7f [2020-07-28 17:58:23,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:58:23,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:58:23,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:58:23,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:58:23,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:58:23,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:58:23" (1/1) ... [2020-07-28 17:58:23,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc6252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:23, skipping insertion in model container [2020-07-28 17:58:23,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:58:23" (1/1) ... [2020-07-28 17:58:23,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:58:23,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:58:23,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:58:23,324 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:58:23,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:58:23,362 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:58:23,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:23 WrapperNode [2020-07-28 17:58:23,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:58:23,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:58:23,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:58:23,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:58:23,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:23" (1/1) ... [2020-07-28 17:58:23,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:23" (1/1) ... [2020-07-28 17:58:23,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:58:23,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:58:23,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:58:23,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:58:23,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:23" (1/1) ... [2020-07-28 17:58:23,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:23" (1/1) ... [2020-07-28 17:58:23,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:23" (1/1) ... [2020-07-28 17:58:23,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:23" (1/1) ... [2020-07-28 17:58:23,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:23" (1/1) ... [2020-07-28 17:58:23,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:23" (1/1) ... [2020-07-28 17:58:23,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:23" (1/1) ... [2020-07-28 17:58:23,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:58:23,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:58:23,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:58:23,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:58:23,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:23" (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 17:58:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:58:23,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:58:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:58:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:58:23,897 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:58:23,898 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-28 17:58:23,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:23 BoogieIcfgContainer [2020-07-28 17:58:23,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:58:23,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:58:23,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:58:23,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:58:23,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:58:23" (1/3) ... [2020-07-28 17:58:23,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3a8f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:58:23, skipping insertion in model container [2020-07-28 17:58:23,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:23" (2/3) ... [2020-07-28 17:58:23,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3a8f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:58:23, skipping insertion in model container [2020-07-28 17:58:23,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:23" (3/3) ... [2020-07-28 17:58:23,911 INFO L109 eAbstractionObserver]: Analyzing ICFG test02.c [2020-07-28 17:58:23,919 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:58:23,927 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:58:23,942 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:58:23,967 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:58:23,967 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:58:23,967 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:58:23,967 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:58:23,968 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:58:23,968 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:58:23,968 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:58:23,968 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:58:23,982 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-07-28 17:58:23,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-28 17:58:23,988 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:58:23,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-28 17:58:23,990 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:58:23,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:58:23,995 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-07-28 17:58:24,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:58:24,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112529998] [2020-07-28 17:58:24,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:58:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:58:24,091 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:58:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:58:24,103 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:58:24,123 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:58:24,123 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:58:24,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:58:24,155 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:58:24,155 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:58:24,155 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-28 17:58:24,155 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-28 17:58:24,156 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-28 17:58:24,156 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-28 17:58:24,156 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-28 17:58:24,156 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:58:24,156 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 17:58:24,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:58:24 BoogieIcfgContainer [2020-07-28 17:58:24,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:58:24,160 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:58:24,160 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:58:24,161 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:58:24,161 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:23" (3/4) ... [2020-07-28 17:58:24,164 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 17:58:24,213 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:58:24,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:58:24,216 INFO L168 Benchmark]: Toolchain (without parser) took 1122.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -143.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:58:24,217 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:58:24,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.48 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:24,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.25 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:58:24,219 INFO L168 Benchmark]: Boogie Preprocessor took 76.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:24,220 INFO L168 Benchmark]: RCFGBuilder took 423.31 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: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:24,221 INFO L168 Benchmark]: TraceAbstraction took 256.55 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:24,222 INFO L168 Benchmark]: Witness Printer took 52.72 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:24,226 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 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.48 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 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 38.25 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 76.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 423.31 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: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 256.55 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Witness Printer took 52.72 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] int q; VAL [q=0] [L7] int a, b; [L8] int *p1 = &a; [L9] int *p2 = p1; [L11] q = 0 VAL [q=0] [L13] COND TRUE p1 == p2 VAL [q=0] [L19] __VERIFIER_error() VAL [q=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...