./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test05.c --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/test05.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 d041348802bf4718d6612df649aecee20760a6ff .............................................................................................................................................................................................................................................................................................................................................................................................................. 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 16:57:26,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:57:26,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:57:26,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:57:26,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:57:26,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:57:26,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:57:26,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:57:26,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:57:26,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:57:26,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:57:26,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:57:26,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:57:26,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:57:26,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:57:26,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:57:26,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:57:26,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:57:26,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:57:26,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:57:26,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:57:26,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:57:26,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:57:26,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:57:26,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:57:26,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:57:26,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:57:26,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:57:26,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:57:26,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:57:26,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:57:26,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:57:26,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:57:26,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:57:26,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:57:26,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:57:26,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:57:26,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:57:26,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:57:26,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:57:26,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:57:26,627 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:57:26,653 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:57:26,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:57:26,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:57:26,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:57:26,656 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:57:26,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:57:26,657 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:57:26,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:57:26,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:57:26,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:57:26,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:57:26,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:57:26,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:57:26,660 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:57:26,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:57:26,661 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:57:26,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:57:26,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:57:26,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:57:26,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:57:26,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:57:26,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:57:26,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:57:26,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:57:26,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:57:26,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:57:26,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:57:26,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:57:26,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:57:26,664 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 -> d041348802bf4718d6612df649aecee20760a6ff [2019-11-28 16:57:26,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:57:27,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:57:27,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:57:27,011 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:57:27,012 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:57:27,012 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test05.c [2019-11-28 16:57:27,079 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ea748fac/54e06301345f4279bbc9bd8054cd7a61/FLAGb0a54260a [2019-11-28 16:57:27,568 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:57:27,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test05.c [2019-11-28 16:57:27,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ea748fac/54e06301345f4279bbc9bd8054cd7a61/FLAGb0a54260a [2019-11-28 16:57:27,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ea748fac/54e06301345f4279bbc9bd8054cd7a61 [2019-11-28 16:57:27,937 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:57:27,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:57:27,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:57:27,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:57:27,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:57:27,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:57:27" (1/1) ... [2019-11-28 16:57:27,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36afd66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:27, skipping insertion in model container [2019-11-28 16:57:27,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:57:27" (1/1) ... [2019-11-28 16:57:27,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:57:27,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:57:28,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:57:28,174 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:57:28,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:57:28,214 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:57:28,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:28 WrapperNode [2019-11-28 16:57:28,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:57:28,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:57:28,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:57:28,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:57:28,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:28" (1/1) ... [2019-11-28 16:57:28,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:28" (1/1) ... [2019-11-28 16:57:28,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:57:28,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:57:28,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:57:28,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:57:28,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:28" (1/1) ... [2019-11-28 16:57:28,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:28" (1/1) ... [2019-11-28 16:57:28,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:28" (1/1) ... [2019-11-28 16:57:28,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:28" (1/1) ... [2019-11-28 16:57:28,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:28" (1/1) ... [2019-11-28 16:57:28,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:28" (1/1) ... [2019-11-28 16:57:28,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:28" (1/1) ... [2019-11-28 16:57:28,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:57:28,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:57:28,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:57:28,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:57:28,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:28" (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 16:57:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 16:57:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 16:57:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:57:28,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:57:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 16:57:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:57:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 16:57:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:57:28,765 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:57:28,766 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-28 16:57:28,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:57:28 BoogieIcfgContainer [2019-11-28 16:57:28,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:57:28,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:57:28,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:57:28,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:57:28,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:57:27" (1/3) ... [2019-11-28 16:57:28,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db05a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:57:28, skipping insertion in model container [2019-11-28 16:57:28,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:28" (2/3) ... [2019-11-28 16:57:28,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db05a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:57:28, skipping insertion in model container [2019-11-28 16:57:28,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:57:28" (3/3) ... [2019-11-28 16:57:28,776 INFO L109 eAbstractionObserver]: Analyzing ICFG test05.c [2019-11-28 16:57:28,786 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:57:28,797 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:57:28,810 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:57:28,840 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:57:28,840 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:57:28,840 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:57:28,840 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:57:28,840 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:57:28,841 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:57:28,841 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:57:28,841 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:57:28,853 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-28 16:57:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 16:57:28,860 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:57:28,860 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-28 16:57:28,861 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:57:28,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:57:28,867 INFO L82 PathProgramCache]: Analyzing trace with hash 889629870, now seen corresponding path program 1 times [2019-11-28 16:57:28,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:57:28,876 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278685255] [2019-11-28 16:57:28,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:57:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:57:29,101 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 16:57:29,102 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278685255] [2019-11-28 16:57:29,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:57:29,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 16:57:29,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855959153] [2019-11-28 16:57:29,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 16:57:29,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:57:29,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 16:57:29,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 16:57:29,126 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2019-11-28 16:57:29,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:57:29,152 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2019-11-28 16:57:29,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:57:29,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-28 16:57:29,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:57:29,165 INFO L225 Difference]: With dead ends: 20 [2019-11-28 16:57:29,165 INFO L226 Difference]: Without dead ends: 9 [2019-11-28 16:57:29,171 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 16:57:29,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-28 16:57:29,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-28 16:57:29,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 16:57:29,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-28 16:57:29,205 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-11-28 16:57:29,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:57:29,205 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-28 16:57:29,206 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 16:57:29,206 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-28 16:57:29,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 16:57:29,206 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:57:29,206 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:57:29,207 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:57:29,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:57:29,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1804905807, now seen corresponding path program 1 times [2019-11-28 16:57:29,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:57:29,208 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79894884] [2019-11-28 16:57:29,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:57:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:57:29,311 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 16:57:29,311 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79894884] [2019-11-28 16:57:29,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:57:29,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 16:57:29,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981922018] [2019-11-28 16:57:29,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 16:57:29,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:57:29,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 16:57:29,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:57:29,315 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2019-11-28 16:57:29,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:57:29,363 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-11-28 16:57:29,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 16:57:29,364 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 16:57:29,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:57:29,365 INFO L225 Difference]: With dead ends: 11 [2019-11-28 16:57:29,365 INFO L226 Difference]: Without dead ends: 9 [2019-11-28 16:57:29,367 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 16:57:29,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-28 16:57:29,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-28 16:57:29,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 16:57:29,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2019-11-28 16:57:29,370 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 7 [2019-11-28 16:57:29,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:57:29,371 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2019-11-28 16:57:29,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 16:57:29,372 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2019-11-28 16:57:29,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 16:57:29,372 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:57:29,373 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:57:29,373 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:57:29,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:57:29,374 INFO L82 PathProgramCache]: Analyzing trace with hash 117506990, now seen corresponding path program 1 times [2019-11-28 16:57:29,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:57:29,376 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015476958] [2019-11-28 16:57:29,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:57:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:57:29,618 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 16:57:29,618 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015476958] [2019-11-28 16:57:29,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:57:29,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 16:57:29,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632223379] [2019-11-28 16:57:29,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 16:57:29,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:57:29,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 16:57:29,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-28 16:57:29,621 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 7 states. [2019-11-28 16:57:29,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:57:29,740 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2019-11-28 16:57:29,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 16:57:29,740 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-28 16:57:29,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:57:29,741 INFO L225 Difference]: With dead ends: 9 [2019-11-28 16:57:29,741 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 16:57:29,741 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 16:57:29,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 16:57:29,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 16:57:29,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 16:57:29,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 16:57:29,743 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-28 16:57:29,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:57:29,743 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 16:57:29,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 16:57:29,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 16:57:29,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 16:57:29,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 16:57:29,786 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 16:57:29,786 INFO L246 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2019-11-28 16:57:29,787 INFO L246 CegarLoopResult]: For program point L34(lines 34 36) no Hoare annotation was computed. [2019-11-28 16:57:29,787 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 16:57:29,787 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 16:57:29,787 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 16:57:29,788 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-11-28 16:57:29,788 INFO L242 CegarLoopResult]: At program point L16(lines 11 18) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#p1~0.base|) |ULTIMATE.start_main_~#p1~0.offset|))) (and (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#p1~0.base|) |ULTIMATE.start_main_~#p1~0.offset|)) 0) (= ULTIMATE.start_f_~a 4) (= 1 |ULTIMATE.start_f_#res|) (not (= |ULTIMATE.start_main_~#a~0.base| .cse0)) (not (= |ULTIMATE.start_main_~#a~0.base| |ULTIMATE.start_main_~#p1~0.base|)))) [2019-11-28 16:57:29,788 INFO L242 CegarLoopResult]: At program point L45(lines 20 46) the Hoare annotation is: (= ULTIMATE.start_f_~a 4) [2019-11-28 16:57:29,789 INFO L246 CegarLoopResult]: For program point L12(lines 12 17) no Hoare annotation was computed. [2019-11-28 16:57:29,790 INFO L242 CegarLoopResult]: At program point L39(lines 20 46) the Hoare annotation is: false [2019-11-28 16:57:29,790 INFO L246 CegarLoopResult]: For program point L4(lines 4 9) no Hoare annotation was computed. [2019-11-28 16:57:29,810 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-28 16:57:29,811 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-28 16:57:29,812 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-28 16:57:29,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 16:57:29,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-28 16:57:29,817 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-28 16:57:29,818 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-28 16:57:29,821 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-28 16:57:29,821 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-28 16:57:29,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-28 16:57:29,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 16:57:29,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-28 16:57:29,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-28 16:57:29,824 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-28 16:57:29,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:57:29 BoogieIcfgContainer [2019-11-28 16:57:29,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:57:29,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:57:29,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:57:29,831 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:57:29,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:57:28" (3/4) ... [2019-11-28 16:57:29,836 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 16:57:29,853 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-11-28 16:57:29,854 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 16:57:29,854 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 16:57:29,915 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((unknown-#memory_int-unknown[#memory_$Pointer$[p1][p1]][#memory_$Pointer$[p1][p1]] == 0 && a == 4) && 1 == \result) && !(a == #memory_$Pointer$[p1][p1])) && !(a == p1) [2019-11-28 16:57:29,970 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:57:29,971 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:57:29,973 INFO L168 Benchmark]: Toolchain (without parser) took 2033.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -70.8 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:29,974 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:57:29,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.54 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:29,976 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:29,978 INFO L168 Benchmark]: Boogie Preprocessor took 24.19 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 16:57:29,981 INFO L168 Benchmark]: RCFGBuilder took 431.85 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: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:29,981 INFO L168 Benchmark]: TraceAbstraction took 1061.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:29,984 INFO L168 Benchmark]: Witness Printer took 139.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:29,987 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 274.54 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 431.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1061.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 11.5 GB. * Witness Printer took 139.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 11]: Loop Invariant [2019-11-28 16:57:29,996 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-28 16:57:29,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-28 16:57:29,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-28 16:57:29,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 16:57:29,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-28 16:57:29,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-28 16:57:30,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-28 16:57:30,004 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-28 16:57:30,004 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-28 16:57:30,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-28 16:57:30,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 16:57:30,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-28 16:57:30,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-28 16:57:30,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((unknown-#memory_int-unknown[#memory_$Pointer$[p1][p1]][#memory_$Pointer$[p1][p1]] == 0 && a == 4) && 1 == \result) && !(a == #memory_$Pointer$[p1][p1])) && !(a == p1) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: a == 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 15 SDslu, 15 SDs, 0 SdLazy, 18 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 38 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 816 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...