./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/verifythis/elimination_max.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f6fb2bb1 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/verifythis/elimination_max.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 ec686c14a99a8742d6c8b1aae9ba146b60b19534 ................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/verifythis/elimination_max.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 ec686c14a99a8742d6c8b1aae9ba146b60b19534 ..................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 18:52:48,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:52:48,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:52:48,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:52:48,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:52:48,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:52:48,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:52:48,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:52:48,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:52:48,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:52:48,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:52:48,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:52:48,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:52:48,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:52:48,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:52:48,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:52:48,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:52:48,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:52:48,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:52:48,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:52:48,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:52:48,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:52:48,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:52:48,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:52:48,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:52:48,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:52:48,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:52:48,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:52:48,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:52:48,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:52:48,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:52:48,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:52:48,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:52:48,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:52:48,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:52:48,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:52:48,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:52:48,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:52:48,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:52:48,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:52:48,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:52:48,150 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 18:52:48,174 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:52:48,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:52:48,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:52:48,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:52:48,180 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:52:48,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:52:48,181 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:52:48,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 18:52:48,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:52:48,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:52:48,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:52:48,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:52:48,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:52:48,184 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:52:48,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:52:48,185 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:52:48,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:52:48,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:52:48,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:52:48,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:52:48,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:52:48,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:52:48,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:52:48,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:52:48,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:52:48,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 18:52:48,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 18:52:48,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:52:48,190 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 -> ec686c14a99a8742d6c8b1aae9ba146b60b19534 [2019-11-19 18:52:48,492 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:52:48,505 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:52:48,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:52:48,510 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:52:48,511 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:52:48,512 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max.c [2019-11-19 18:52:48,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/659e5592a/d2494fb073da4245b1595c914e09c134/FLAGfea421f9d [2019-11-19 18:52:49,019 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:52:49,027 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max.c [2019-11-19 18:52:49,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/659e5592a/d2494fb073da4245b1595c914e09c134/FLAGfea421f9d [2019-11-19 18:52:49,357 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/659e5592a/d2494fb073da4245b1595c914e09c134 [2019-11-19 18:52:49,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:52:49,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:52:49,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:52:49,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:52:49,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:52:49,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:52:49" (1/1) ... [2019-11-19 18:52:49,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fbd84cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:49, skipping insertion in model container [2019-11-19 18:52:49,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:52:49" (1/1) ... [2019-11-19 18:52:49,378 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:52:49,396 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:52:49,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:52:49,585 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:52:49,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:52:49,619 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:52:49,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:49 WrapperNode [2019-11-19 18:52:49,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:52:49,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:52:49,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:52:49,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:52:49,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:49" (1/1) ... [2019-11-19 18:52:49,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:49" (1/1) ... [2019-11-19 18:52:49,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:52:49,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:52:49,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:52:49,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:52:49,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:49" (1/1) ... [2019-11-19 18:52:49,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:49" (1/1) ... [2019-11-19 18:52:49,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:49" (1/1) ... [2019-11-19 18:52:49,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:49" (1/1) ... [2019-11-19 18:52:49,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:49" (1/1) ... [2019-11-19 18:52:49,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:49" (1/1) ... [2019-11-19 18:52:49,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:49" (1/1) ... [2019-11-19 18:52:49,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:52:49,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:52:49,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:52:49,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:52:49,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:49" (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 18:52:49,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-19 18:52:49,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:52:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:52:49,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 18:52:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 18:52:50,055 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:52:50,055 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-19 18:52:50,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:52:50 BoogieIcfgContainer [2019-11-19 18:52:50,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:52:50,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:52:50,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:52:50,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:52:50,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:52:49" (1/3) ... [2019-11-19 18:52:50,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603e42d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:52:50, skipping insertion in model container [2019-11-19 18:52:50,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:49" (2/3) ... [2019-11-19 18:52:50,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603e42d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:52:50, skipping insertion in model container [2019-11-19 18:52:50,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:52:50" (3/3) ... [2019-11-19 18:52:50,068 INFO L109 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2019-11-19 18:52:50,081 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:52:50,089 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-19 18:52:50,105 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-19 18:52:50,130 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:52:50,130 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:52:50,131 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:52:50,131 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:52:50,131 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:52:50,131 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:52:50,131 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:52:50,132 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:52:50,146 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-19 18:52:50,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 18:52:50,152 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:52:50,153 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:52:50,153 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:52:50,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:52:50,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1804411268, now seen corresponding path program 1 times [2019-11-19 18:52:50,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:52:50,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95765886] [2019-11-19 18:52:50,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:52:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:52:50,300 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 18:52:50,301 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95765886] [2019-11-19 18:52:50,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:52:50,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 18:52:50,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261329903] [2019-11-19 18:52:50,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 18:52:50,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:52:50,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 18:52:50,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 18:52:50,325 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-19 18:52:50,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:52:50,345 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-19 18:52:50,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 18:52:50,347 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-19 18:52:50,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:52:50,357 INFO L225 Difference]: With dead ends: 35 [2019-11-19 18:52:50,357 INFO L226 Difference]: Without dead ends: 16 [2019-11-19 18:52:50,360 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 18:52:50,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-19 18:52:50,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-19 18:52:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-19 18:52:50,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-19 18:52:50,399 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 7 [2019-11-19 18:52:50,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:52:50,399 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-19 18:52:50,399 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 18:52:50,400 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-19 18:52:50,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 18:52:50,400 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:52:50,400 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:52:50,401 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:52:50,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:52:50,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1804113358, now seen corresponding path program 1 times [2019-11-19 18:52:50,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:52:50,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805226688] [2019-11-19 18:52:50,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:52:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:52:50,523 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (const Int) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:478) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1307) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1188) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.TermTransferrer.convertApplicationTerm(TermTransferrer.java:182) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:339) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:573) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:171) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:300) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:202) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-19 18:52:50,531 INFO L168 Benchmark]: Toolchain (without parser) took 1169.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 955.0 MB in the beginning and 1.0 GB in the end (delta: -86.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2019-11-19 18:52:50,532 INFO L168 Benchmark]: CDTParser took 0.27 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 18:52:50,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.85 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:52:50,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:52:50,540 INFO L168 Benchmark]: Boogie Preprocessor took 26.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-19 18:52:50,541 INFO L168 Benchmark]: RCFGBuilder took 309.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2019-11-19 18:52:50,542 INFO L168 Benchmark]: TraceAbstraction took 470.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:52:50,554 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 257.85 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.2 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 99.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 309.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 470.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (const Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (const Int): de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:478) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-f6fb2bb [2019-11-19 18:52:52,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:52:52,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:52:52,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:52:52,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:52:52,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:52:52,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:52:52,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:52:52,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:52:52,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:52:52,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:52:52,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:52:52,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:52:52,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:52:52,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:52:52,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:52:52,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:52:52,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:52:52,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:52:52,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:52:52,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:52:52,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:52:52,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:52:52,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:52:52,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:52:52,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:52:52,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:52:52,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:52:52,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:52:52,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:52:52,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:52:52,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:52:52,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:52:52,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:52:52,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:52:52,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:52:52,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:52:52,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:52:52,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:52:52,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:52:52,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:52:52,664 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 18:52:52,697 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:52:52,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:52:52,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:52:52,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:52:52,704 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:52:52,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:52:52,705 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:52:52,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:52:52,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:52:52,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:52:52,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:52:52,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:52:52,707 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 18:52:52,707 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 18:52:52,708 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:52:52,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:52:52,709 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:52:52,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:52:52,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:52:52,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:52:52,710 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:52:52,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:52:52,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:52:52,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:52:52,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:52:52,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:52:52,712 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 18:52:52,712 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 18:52:52,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:52:52,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 18:52:52,713 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> ec686c14a99a8742d6c8b1aae9ba146b60b19534 [2019-11-19 18:52:53,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:52:53,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:52:53,037 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:52:53,039 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:52:53,040 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:52:53,041 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max.c [2019-11-19 18:52:53,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/078e6d80a/b99b3b0ff7ab42cdbe7d75e6f160b38a/FLAG50d696afb [2019-11-19 18:52:53,592 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:52:53,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max.c [2019-11-19 18:52:53,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/078e6d80a/b99b3b0ff7ab42cdbe7d75e6f160b38a/FLAG50d696afb [2019-11-19 18:52:53,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/078e6d80a/b99b3b0ff7ab42cdbe7d75e6f160b38a [2019-11-19 18:52:53,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:52:53,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:52:53,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:52:53,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:52:53,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:52:53,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:52:53" (1/1) ... [2019-11-19 18:52:53,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b4017a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:53, skipping insertion in model container [2019-11-19 18:52:53,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:52:53" (1/1) ... [2019-11-19 18:52:54,007 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:52:54,025 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:52:54,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:52:54,246 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:52:54,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:52:54,346 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:52:54,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:54 WrapperNode [2019-11-19 18:52:54,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:52:54,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:52:54,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:52:54,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:52:54,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:54" (1/1) ... [2019-11-19 18:52:54,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:54" (1/1) ... [2019-11-19 18:52:54,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:52:54,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:52:54,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:52:54,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:52:54,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:54" (1/1) ... [2019-11-19 18:52:54,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:54" (1/1) ... [2019-11-19 18:52:54,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:54" (1/1) ... [2019-11-19 18:52:54,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:54" (1/1) ... [2019-11-19 18:52:54,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:54" (1/1) ... [2019-11-19 18:52:54,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:54" (1/1) ... [2019-11-19 18:52:54,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:54" (1/1) ... [2019-11-19 18:52:54,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:52:54,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:52:54,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:52:54,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:52:54,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:54" (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 18:52:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-19 18:52:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 18:52:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:52:54,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:52:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 18:52:54,767 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:52:54,768 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-19 18:52:54,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:52:54 BoogieIcfgContainer [2019-11-19 18:52:54,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:52:54,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:52:54,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:52:54,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:52:54,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:52:53" (1/3) ... [2019-11-19 18:52:54,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecc9d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:52:54, skipping insertion in model container [2019-11-19 18:52:54,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:54" (2/3) ... [2019-11-19 18:52:54,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecc9d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:52:54, skipping insertion in model container [2019-11-19 18:52:54,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:52:54" (3/3) ... [2019-11-19 18:52:54,790 INFO L109 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2019-11-19 18:52:54,800 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:52:54,807 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-19 18:52:54,823 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-19 18:52:54,844 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:52:54,844 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:52:54,845 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:52:54,845 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:52:54,845 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:52:54,845 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:52:54,846 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:52:54,846 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:52:54,858 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-19 18:52:54,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 18:52:54,865 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:52:54,866 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:52:54,866 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:52:54,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:52:54,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1804411268, now seen corresponding path program 1 times [2019-11-19 18:52:54,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 18:52:54,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [406874291] [2019-11-19 18:52:54,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 18:52:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:52:54,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-19 18:52:54,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:52:54,985 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 18:52:54,985 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 18:52:54,988 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 18:52:54,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [406874291] [2019-11-19 18:52:54,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:52:54,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 18:52:54,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965682330] [2019-11-19 18:52:54,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 18:52:54,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 18:52:55,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 18:52:55,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 18:52:55,006 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-19 18:52:55,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:52:55,021 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-19 18:52:55,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 18:52:55,022 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-19 18:52:55,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:52:55,032 INFO L225 Difference]: With dead ends: 35 [2019-11-19 18:52:55,032 INFO L226 Difference]: Without dead ends: 16 [2019-11-19 18:52:55,035 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 18:52:55,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-19 18:52:55,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-19 18:52:55,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-19 18:52:55,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-19 18:52:55,070 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 7 [2019-11-19 18:52:55,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:52:55,070 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-19 18:52:55,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 18:52:55,071 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-19 18:52:55,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 18:52:55,071 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:52:55,071 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:52:55,273 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 18:52:55,274 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:52:55,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:52:55,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1804113358, now seen corresponding path program 1 times [2019-11-19 18:52:55,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 18:52:55,276 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [581646320] [2019-11-19 18:52:55,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 18:52:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:52:55,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 18:52:55,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:52:55,412 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2019-11-19 18:52:55,413 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 18:52:55,422 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:52:55,422 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 18:52:55,423 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:7, output treesize:6 [2019-11-19 18:52:55,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:52:55,471 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 18:52:55,472 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 18:53:03,662 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 18:53:03,665 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [581646320] [2019-11-19 18:53:03,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:53:03,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-19 18:53:03,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010810808] [2019-11-19 18:53:03,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 18:53:03,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 18:53:03,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 18:53:03,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=36, Unknown=4, NotChecked=0, Total=56 [2019-11-19 18:53:03,673 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 8 states. [2019-11-19 18:53:05,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:53:05,799 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2019-11-19 18:53:05,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 18:53:05,803 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2019-11-19 18:53:05,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:53:05,804 INFO L225 Difference]: With dead ends: 16 [2019-11-19 18:53:05,804 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 18:53:05,805 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=31, Invalid=54, Unknown=5, NotChecked=0, Total=90 [2019-11-19 18:53:05,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 18:53:05,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 18:53:05,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 18:53:05,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 18:53:05,807 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-19 18:53:05,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:53:05,807 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 18:53:05,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 18:53:05,808 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 18:53:05,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 18:53:06,013 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 18:53:06,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 18:53:06,098 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-19 18:53:06,098 INFO L444 ceAbstractionStarter]: For program point L19-2(lines 19 31) no Hoare annotation was computed. [2019-11-19 18:53:06,098 INFO L447 ceAbstractionStarter]: At program point L44(lines 11 45) the Hoare annotation is: true [2019-11-19 18:53:06,099 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 18:53:06,099 INFO L444 ceAbstractionStarter]: For program point L-1-1(line -1) no Hoare annotation was computed. [2019-11-19 18:53:06,099 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 18:53:06,100 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 18:53:06,100 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-19 18:53:06,100 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 18:53:06,100 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2019-11-19 18:53:06,100 INFO L440 ceAbstractionStarter]: At program point L29-2(lines 19 31) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (= (select |#memory_int| |ULTIMATE.start_main_#t~malloc3.base|) .cse0))) [2019-11-19 18:53:06,100 INFO L444 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-19 18:53:06,101 INFO L444 ceAbstractionStarter]: For program point L5-1(lines 5 7) no Hoare annotation was computed. [2019-11-19 18:53:06,101 INFO L444 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-19 18:53:06,101 INFO L444 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-11-19 18:53:06,101 INFO L444 ceAbstractionStarter]: For program point L39-2(lines 39 41) no Hoare annotation was computed. [2019-11-19 18:53:06,101 INFO L440 ceAbstractionStarter]: At program point L39-3(lines 39 41) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (select |#memory_int| |ULTIMATE.start_main_#t~malloc3.base|) .cse0))) [2019-11-19 18:53:06,101 INFO L444 ceAbstractionStarter]: For program point L6-3(line 6) no Hoare annotation was computed. [2019-11-19 18:53:06,102 INFO L444 ceAbstractionStarter]: For program point L39-4(lines 39 41) no Hoare annotation was computed. [2019-11-19 18:53:06,102 INFO L444 ceAbstractionStarter]: For program point L6-4(line 6) no Hoare annotation was computed. [2019-11-19 18:53:06,105 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:556) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:256) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:213) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-19 18:53:06,110 INFO L168 Benchmark]: Toolchain (without parser) took 12119.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 963.1 MB in the beginning and 1.1 GB in the end (delta: -87.8 MB). Peak memory consumption was 59.0 MB. Max. memory is 11.5 GB. [2019-11-19 18:53:06,111 INFO L168 Benchmark]: CDTParser took 0.32 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. [2019-11-19 18:53:06,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 963.1 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:53:06,112 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.38 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. [2019-11-19 18:53:06,113 INFO L168 Benchmark]: Boogie Preprocessor took 35.97 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. [2019-11-19 18:53:06,114 INFO L168 Benchmark]: RCFGBuilder took 337.14 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-11-19 18:53:06,115 INFO L168 Benchmark]: TraceAbstraction took 11336.69 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: 65.9 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. [2019-11-19 18:53:06,119 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 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 356.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 963.1 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.38 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. * Boogie Preprocessor took 35.97 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 337.14 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11336.69 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: 65.9 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...