./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test_union_cast-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c 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/test_union_cast-2.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 c0b52ca6f506b754b9ab96f64f1e5708d2849337 ................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 16:57:56,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:57:56,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:57:56,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:57:56,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:57:56,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:57:56,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:57:56,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:57:56,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:57:56,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:57:56,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:57:56,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:57:56,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:57:56,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:57:56,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:57:56,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:57:56,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:57:56,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:57:56,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:57:56,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:57:56,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:57:56,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:57:56,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:57:56,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:57:56,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:57:56,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:57:56,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:57:56,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:57:56,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:57:56,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:57:56,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:57:56,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:57:56,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:57:56,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:57:56,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:57:56,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:57:56,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:57:56,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:57:56,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:57:56,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:57:56,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:57:56,808 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:57:56,826 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:57:56,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:57:56,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:57:56,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:57:56,828 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:57:56,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:57:56,829 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:57:56,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:57:56,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:57:56,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:57:56,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:57:56,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:57:56,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:57:56,831 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:57:56,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:57:56,832 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:57:56,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:57:56,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:57:56,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:57:56,833 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:57:56,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:57:56,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:57:56,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:57:56,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:57:56,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:57:56,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:57:56,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:57:56,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:57:56,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:57:56,836 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 -> c0b52ca6f506b754b9ab96f64f1e5708d2849337 [2019-11-28 16:57:57,150 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:57:57,172 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:57:57,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:57:57,178 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:57:57,180 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:57:57,181 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_union_cast-2.i [2019-11-28 16:57:57,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d7655a16/029475b95842487aa0068ad225c1ba9f/FLAGd0e87b3ba [2019-11-28 16:57:57,672 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:57:57,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_union_cast-2.i [2019-11-28 16:57:57,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d7655a16/029475b95842487aa0068ad225c1ba9f/FLAGd0e87b3ba [2019-11-28 16:57:58,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d7655a16/029475b95842487aa0068ad225c1ba9f [2019-11-28 16:57:58,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:57:58,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:57:58,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:57:58,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:57:58,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:57:58,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:57:58" (1/1) ... [2019-11-28 16:57:58,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120696db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:58, skipping insertion in model container [2019-11-28 16:57:58,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:57:58" (1/1) ... [2019-11-28 16:57:58,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:57:58,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:57:58,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:57:58,311 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:57:58,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:57:58,341 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:57:58,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:58 WrapperNode [2019-11-28 16:57:58,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:57:58,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:57:58,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:57:58,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:57:58,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:58" (1/1) ... [2019-11-28 16:57:58,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:58" (1/1) ... [2019-11-28 16:57:58,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:57:58,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:57:58,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:57:58,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:57:58,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:58" (1/1) ... [2019-11-28 16:57:58,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:58" (1/1) ... [2019-11-28 16:57:58,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:58" (1/1) ... [2019-11-28 16:57:58,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:58" (1/1) ... [2019-11-28 16:57:58,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:58" (1/1) ... [2019-11-28 16:57:58,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:58" (1/1) ... [2019-11-28 16:57:58,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:58" (1/1) ... [2019-11-28 16:57:58,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:57:58,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:57:58,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:57:58,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:57:58,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:58" (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 [2019-11-28 16:57:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:57:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 16:57:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-28 16:57:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:57:58,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:57:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 16:57:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:57:58,675 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:57:58,676 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 16:57:58,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:57:58 BoogieIcfgContainer [2019-11-28 16:57:58,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:57:58,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:57:58,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:57:58,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:57:58,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:57:58" (1/3) ... [2019-11-28 16:57:58,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6c733c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:57:58, skipping insertion in model container [2019-11-28 16:57:58,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:58" (2/3) ... [2019-11-28 16:57:58,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6c733c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:57:58, skipping insertion in model container [2019-11-28 16:57:58,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:57:58" (3/3) ... [2019-11-28 16:57:58,685 INFO L109 eAbstractionObserver]: Analyzing ICFG test_union_cast-2.i [2019-11-28 16:57:58,693 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:57:58,698 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:57:58,710 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:57:58,729 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:57:58,729 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:57:58,729 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:57:58,730 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:57:58,730 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:57:58,730 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:57:58,730 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:57:58,730 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:57:58,742 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-28 16:57:58,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 16:57:58,746 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:57:58,747 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 16:57:58,748 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:57:58,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:57:58,754 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-11-28 16:57:58,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:57:58,763 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775434906] [2019-11-28 16:57:58,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:57:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:57:58,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:57:58,942 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775434906] [2019-11-28 16:57:58,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:57:58,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 16:57:58,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127092435] [2019-11-28 16:57:58,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 16:57:58,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:57:58,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 16:57:58,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 16:57:58,967 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2019-11-28 16:57:58,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:57:58,990 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-28 16:57:58,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:57:58,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-28 16:57:58,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:57:59,000 INFO L225 Difference]: With dead ends: 13 [2019-11-28 16:57:59,000 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 16:57:59,004 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 [2019-11-28 16:57:59,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 16:57:59,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 16:57:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 16:57:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 16:57:59,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-28 16:57:59,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:57:59,036 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 16:57:59,036 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 16:57:59,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 16:57:59,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 16:57:59,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 16:57:59,083 INFO L242 CegarLoopResult]: At program point L3-2(lines 2 7) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2019-11-28 16:57:59,084 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 16:57:59,084 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 16:57:59,084 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 16:57:59,084 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 16:57:59,085 INFO L242 CegarLoopResult]: At program point L27(lines 22 28) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2019-11-28 16:57:59,085 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-11-28 16:57:59,085 INFO L246 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2019-11-28 16:57:59,085 INFO L246 CegarLoopResult]: For program point L3(lines 3 5) no Hoare annotation was computed. [2019-11-28 16:57:59,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:57:59 BoogieIcfgContainer [2019-11-28 16:57:59,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:57:59,124 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:57:59,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:57:59,125 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:57:59,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:57:58" (3/4) ... [2019-11-28 16:57:59,129 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 16:57:59,141 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-28 16:57:59,142 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 16:57:59,142 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 16:57:59,194 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:57:59,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:57:59,203 INFO L168 Benchmark]: Toolchain (without parser) took 1125.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -123.9 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:59,203 INFO L168 Benchmark]: CDTParser took 0.77 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. [2019-11-28 16:57:59,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.81 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:59,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:59,207 INFO L168 Benchmark]: Boogie Preprocessor took 20.66 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. [2019-11-28 16:57:59,211 INFO L168 Benchmark]: RCFGBuilder took 220.21 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: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:59,212 INFO L168 Benchmark]: TraceAbstraction took 445.24 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:59,214 INFO L168 Benchmark]: Witness Printer took 70.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:57:59,219 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 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 266.81 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 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 92.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.66 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. * RCFGBuilder took 220.21 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: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 445.24 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * Witness Printer took 70.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 22]: Loop Invariant Derived loop invariant: !(0 == cond) - InvariantResult [Line: 2]: Loop Invariant Derived loop invariant: !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 1 SDs, 0 SdLazy, 1 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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...