./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/nested_structure_ptr-1.i --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/ldv-regression/nested_structure_ptr-1.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 ba8c3ab7692cdfe311be2a8c99aab063ad0366de .................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 21:13:59,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:13:59,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:13:59,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:13:59,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:13:59,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:13:59,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:14:00,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:14:00,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:14:00,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:14:00,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:14:00,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:14:00,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:14:00,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:14:00,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:14:00,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:14:00,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:14:00,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:14:00,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:14:00,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:14:00,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:14:00,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:14:00,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:14:00,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:14:00,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:14:00,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:14:00,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:14:00,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:14:00,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:14:00,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:14:00,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:14:00,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:14:00,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:14:00,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:14:00,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:14:00,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:14:00,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:14:00,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:14:00,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:14:00,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:14:00,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:14:00,070 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 21:14:00,098 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:14:00,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:14:00,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:14:00,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:14:00,101 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:14:00,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:14:00,102 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:14:00,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 21:14:00,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:14:00,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:14:00,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:14:00,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:14:00,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:14:00,105 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:14:00,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:14:00,105 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:14:00,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:14:00,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:14:00,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:14:00,106 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:14:00,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:14:00,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:14:00,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:14:00,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:14:00,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:14:00,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 21:14:00,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 21:14:00,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:14:00,109 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 -> ba8c3ab7692cdfe311be2a8c99aab063ad0366de [2019-11-19 21:14:00,442 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:14:00,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:14:00,465 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:14:00,467 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:14:00,467 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:14:00,468 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/nested_structure_ptr-1.i [2019-11-19 21:14:00,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc2603e5/73eb76d41e7e44f399ed9412b6d42e0d/FLAGbc864c51b [2019-11-19 21:14:00,993 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:14:00,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/nested_structure_ptr-1.i [2019-11-19 21:14:00,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc2603e5/73eb76d41e7e44f399ed9412b6d42e0d/FLAGbc864c51b [2019-11-19 21:14:01,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc2603e5/73eb76d41e7e44f399ed9412b6d42e0d [2019-11-19 21:14:01,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:14:01,376 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:14:01,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:14:01,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:14:01,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:14:01,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:14:01" (1/1) ... [2019-11-19 21:14:01,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37efcfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:01, skipping insertion in model container [2019-11-19 21:14:01,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:14:01" (1/1) ... [2019-11-19 21:14:01,393 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:14:01,410 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:14:01,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:14:01,602 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:14:01,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:14:01,639 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:14:01,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:01 WrapperNode [2019-11-19 21:14:01,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:14:01,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:14:01,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:14:01,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:14:01,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:01" (1/1) ... [2019-11-19 21:14:01,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:01" (1/1) ... [2019-11-19 21:14:01,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:14:01,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:14:01,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:14:01,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:14:01,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:01" (1/1) ... [2019-11-19 21:14:01,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:01" (1/1) ... [2019-11-19 21:14:01,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:01" (1/1) ... [2019-11-19 21:14:01,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:01" (1/1) ... [2019-11-19 21:14:01,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:01" (1/1) ... [2019-11-19 21:14:01,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:01" (1/1) ... [2019-11-19 21:14:01,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:01" (1/1) ... [2019-11-19 21:14:01,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:14:01,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:14:01,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:14:01,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:14:01,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:01" (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 21:14:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 21:14:01,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-19 21:14:01,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-19 21:14:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:14:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:14:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 21:14:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 21:14:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:14:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 21:14:02,096 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:14:02,096 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 21:14:02,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:14:02 BoogieIcfgContainer [2019-11-19 21:14:02,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:14:02,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:14:02,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:14:02,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:14:02,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:14:01" (1/3) ... [2019-11-19 21:14:02,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc38817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:14:02, skipping insertion in model container [2019-11-19 21:14:02,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:01" (2/3) ... [2019-11-19 21:14:02,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc38817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:14:02, skipping insertion in model container [2019-11-19 21:14:02,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:14:02" (3/3) ... [2019-11-19 21:14:02,122 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure_ptr-1.i [2019-11-19 21:14:02,151 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:14:02,161 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 21:14:02,188 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 21:14:02,222 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:14:02,222 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:14:02,222 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:14:02,223 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:14:02,223 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:14:02,223 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:14:02,223 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:14:02,224 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:14:02,241 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-19 21:14:02,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 21:14:02,248 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:14:02,249 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 21:14:02,250 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:14:02,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:14:02,257 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-11-19 21:14:02,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:14:02,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201657980] [2019-11-19 21:14:02,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:14:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:14:02,563 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 21:14:02,564 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201657980] [2019-11-19 21:14:02,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:14:02,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 21:14:02,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462650978] [2019-11-19 21:14:02,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 21:14:02,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:14:02,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 21:14:02,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 21:14:02,585 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2019-11-19 21:14:02,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:14:02,628 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-19 21:14:02,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 21:14:02,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-19 21:14:02,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:14:02,637 INFO L225 Difference]: With dead ends: 13 [2019-11-19 21:14:02,637 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 21:14:02,640 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 21:14:02,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 21:14:02,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 21:14:02,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 21:14:02,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 21:14:02,666 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-19 21:14:02,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:14:02,667 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 21:14:02,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 21:14:02,668 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 21:14:02,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 21:14:02,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 21:14:02,696 INFO L447 ceAbstractionStarter]: At program point L33(lines 25 34) the Hoare annotation is: true [2019-11-19 21:14:02,696 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 21:14:02,696 INFO L444 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2019-11-19 21:14:02,697 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 21:14:02,699 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 21:14:02,699 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 21:14:02,699 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-11-19 21:14:02,700 INFO L444 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2019-11-19 21:14:02,700 INFO L444 ceAbstractionStarter]: For program point L8(lines 1 34) no Hoare annotation was computed. [2019-11-19 21:14:02,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:14:02 BoogieIcfgContainer [2019-11-19 21:14:02,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:14:02,715 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:14:02,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:14:02,716 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:14:02,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:14:02" (3/4) ... [2019-11-19 21:14:02,721 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 21:14:02,734 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-19 21:14:02,734 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 21:14:02,735 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 21:14:02,788 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 21:14:02,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:14:02,791 INFO L168 Benchmark]: Toolchain (without parser) took 1413.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -136.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:02,791 INFO L168 Benchmark]: CDTParser took 0.26 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 21:14:02,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.57 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:02,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -199.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:02,794 INFO L168 Benchmark]: Boogie Preprocessor took 50.62 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:02,795 INFO L168 Benchmark]: RCFGBuilder took 267.54 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:02,795 INFO L168 Benchmark]: TraceAbstraction took 613.48 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:02,796 INFO L168 Benchmark]: Witness Printer took 72.60 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:02,800 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 262.57 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 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 138.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -199.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.62 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 267.54 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 613.48 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Witness Printer took 72.60 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 1 SDslu, 3 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 correct! Received shutdown request...