./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ifncompf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/ifncompf.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 164b91ab2dbe3523d6f674cc1047c15fbc2d5be5 ................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 20:50:03,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:50:03,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:50:03,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:50:03,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:50:03,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:50:03,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:50:03,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:50:03,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:50:03,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:50:03,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:50:03,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:50:03,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:50:03,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:50:03,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:50:03,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:50:03,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:50:03,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:50:03,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:50:03,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:50:03,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:50:03,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:50:03,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:50:03,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:50:03,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:50:03,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:50:03,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:50:03,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:50:03,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:50:03,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:50:03,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:50:03,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:50:03,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:50:03,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:50:03,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:50:03,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:50:03,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:50:03,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:50:03,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:50:03,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:50:03,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:50:03,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 20:50:03,227 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:50:03,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:50:03,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:50:03,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:50:03,229 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:50:03,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:50:03,230 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:50:03,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:50:03,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:50:03,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:50:03,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 20:50:03,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 20:50:03,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 20:50:03,232 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:50:03,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:50:03,233 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:50:03,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 20:50:03,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:50:03,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:50:03,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 20:50:03,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 20:50:03,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 20:50:03,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:50:03,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 20:50:03,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 20:50:03,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:50:03,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 20:50:03,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 20:50:03,237 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 -> 164b91ab2dbe3523d6f674cc1047c15fbc2d5be5 [2019-11-19 20:50:03,537 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:50:03,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:50:03,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:50:03,561 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:50:03,561 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:50:03,562 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ifncompf.c [2019-11-19 20:50:03,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03c028b9/3babfdd7895a43e885fd052f69639bcf/FLAG7fab0638d [2019-11-19 20:50:04,114 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:50:04,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifncompf.c [2019-11-19 20:50:04,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03c028b9/3babfdd7895a43e885fd052f69639bcf/FLAG7fab0638d [2019-11-19 20:50:04,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03c028b9/3babfdd7895a43e885fd052f69639bcf [2019-11-19 20:50:04,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:50:04,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:50:04,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:50:04,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:50:04,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:50:04,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:50:04" (1/1) ... [2019-11-19 20:50:04,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4173a0ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:04, skipping insertion in model container [2019-11-19 20:50:04,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:50:04" (1/1) ... [2019-11-19 20:50:04,497 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:50:04,518 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:50:04,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:50:04,719 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:50:04,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:50:04,831 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:50:04,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:04 WrapperNode [2019-11-19 20:50:04,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:50:04,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:50:04,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:50:04,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:50:04,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:04" (1/1) ... [2019-11-19 20:50:04,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:04" (1/1) ... [2019-11-19 20:50:04,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:50:04,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:50:04,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:50:04,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:50:04,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:04" (1/1) ... [2019-11-19 20:50:04,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:04" (1/1) ... [2019-11-19 20:50:04,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:04" (1/1) ... [2019-11-19 20:50:04,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:04" (1/1) ... [2019-11-19 20:50:04,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:04" (1/1) ... [2019-11-19 20:50:04,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:04" (1/1) ... [2019-11-19 20:50:04,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:04" (1/1) ... [2019-11-19 20:50:04,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:50:04,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:50:04,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:50:04,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:50:04,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:04" (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 20:50:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 20:50:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-19 20:50:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:50:04,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:50:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 20:50:05,294 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:50:05,294 INFO L285 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-19 20:50:05,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:50:05 BoogieIcfgContainer [2019-11-19 20:50:05,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:50:05,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 20:50:05,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 20:50:05,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 20:50:05,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:50:04" (1/3) ... [2019-11-19 20:50:05,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de08916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:50:05, skipping insertion in model container [2019-11-19 20:50:05,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:04" (2/3) ... [2019-11-19 20:50:05,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de08916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:50:05, skipping insertion in model container [2019-11-19 20:50:05,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:50:05" (3/3) ... [2019-11-19 20:50:05,310 INFO L109 eAbstractionObserver]: Analyzing ICFG ifncompf.c [2019-11-19 20:50:05,320 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 20:50:05,329 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 20:50:05,341 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 20:50:05,362 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 20:50:05,362 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 20:50:05,362 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 20:50:05,362 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:50:05,363 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:50:05,363 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 20:50:05,363 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:50:05,363 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 20:50:05,377 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-19 20:50:05,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 20:50:05,382 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 20:50:05,383 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:50:05,383 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 20:50:05,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:50:05,389 INFO L82 PathProgramCache]: Analyzing trace with hash 638964938, now seen corresponding path program 1 times [2019-11-19 20:50:05,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:50:05,397 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454904646] [2019-11-19 20:50:05,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:50:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:50:05,541 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 20:50:05,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454904646] [2019-11-19 20:50:05,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:50:05,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 20:50:05,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273726721] [2019-11-19 20:50:05,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 20:50:05,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:50:05,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 20:50:05,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 20:50:05,568 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-19 20:50:05,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:50:05,589 INFO L93 Difference]: Finished difference Result 44 states and 64 transitions. [2019-11-19 20:50:05,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 20:50:05,590 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-19 20:50:05,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 20:50:05,598 INFO L225 Difference]: With dead ends: 44 [2019-11-19 20:50:05,599 INFO L226 Difference]: Without dead ends: 21 [2019-11-19 20:50:05,602 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 20:50:05,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-19 20:50:05,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-19 20:50:05,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-19 20:50:05,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2019-11-19 20:50:05,637 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 12 [2019-11-19 20:50:05,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 20:50:05,638 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2019-11-19 20:50:05,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 20:50:05,638 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2019-11-19 20:50:05,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 20:50:05,639 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 20:50:05,639 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:50:05,640 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 20:50:05,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:50:05,640 INFO L82 PathProgramCache]: Analyzing trace with hash -953872449, now seen corresponding path program 1 times [2019-11-19 20:50:05,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:50:05,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075127161] [2019-11-19 20:50:05,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:50:05,660 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 20:50:05,661 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1656963818] [2019-11-19 20:50:05,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:50:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:50:05,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-19 20:50:05,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:50:05,800 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 20:50:05,801 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075127161] [2019-11-19 20:50:05,801 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-19 20:50:05,802 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656963818] [2019-11-19 20:50:05,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:50:05,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:50:05,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089326356] [2019-11-19 20:50:05,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 20:50:05,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:50:05,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 20:50:05,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:50:05,805 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand 3 states. [2019-11-19 20:50:05,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:50:05,878 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2019-11-19 20:50:05,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 20:50:05,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-19 20:50:05,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 20:50:05,879 INFO L225 Difference]: With dead ends: 39 [2019-11-19 20:50:05,879 INFO L226 Difference]: Without dead ends: 24 [2019-11-19 20:50:05,882 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:50:05,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-19 20:50:05,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2019-11-19 20:50:05,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-19 20:50:05,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2019-11-19 20:50:05,893 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 12 [2019-11-19 20:50:05,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 20:50:05,894 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2019-11-19 20:50:05,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 20:50:05,894 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2019-11-19 20:50:05,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 20:50:05,896 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 20:50:05,897 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:50:06,098 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:50:06,099 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 20:50:06,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:50:06,100 INFO L82 PathProgramCache]: Analyzing trace with hash 361112916, now seen corresponding path program 1 times [2019-11-19 20:50:06,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:50:06,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187056054] [2019-11-19 20:50:06,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:50:06,128 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 20:50:06,128 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625942238] [2019-11-19 20:50:06,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:50:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:50:06,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-19 20:50:06,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:50:06,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 20:50:06,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187056054] [2019-11-19 20:50:06,201 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-19 20:50:06,202 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625942238] [2019-11-19 20:50:06,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:50:06,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 20:50:06,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740786138] [2019-11-19 20:50:06,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 20:50:06,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:50:06,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 20:50:06,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 20:50:06,204 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand 4 states. [2019-11-19 20:50:06,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:50:06,330 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2019-11-19 20:50:06,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 20:50:06,333 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-19 20:50:06,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 20:50:06,335 INFO L225 Difference]: With dead ends: 47 [2019-11-19 20:50:06,335 INFO L226 Difference]: Without dead ends: 36 [2019-11-19 20:50:06,336 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 20:50:06,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-19 20:50:06,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2019-11-19 20:50:06,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-19 20:50:06,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2019-11-19 20:50:06,347 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 15 [2019-11-19 20:50:06,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 20:50:06,348 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2019-11-19 20:50:06,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 20:50:06,349 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2019-11-19 20:50:06,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-19 20:50:06,350 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 20:50:06,350 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:50:06,555 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:50:06,555 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 20:50:06,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:50:06,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1034367045, now seen corresponding path program 1 times [2019-11-19 20:50:06,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:50:06,556 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552791047] [2019-11-19 20:50:06,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:50:06,575 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 20:50:06,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [547275200] [2019-11-19 20:50:06,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:50:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:50:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:50:06,716 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:50:06,716 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 20:50:06,921 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:50:06,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:50:06 BoogieIcfgContainer [2019-11-19 20:50:06,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 20:50:06,965 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:50:06,965 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:50:06,966 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:50:06,966 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:50:05" (3/4) ... [2019-11-19 20:50:06,968 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 20:50:07,032 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 20:50:07,032 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:50:07,035 INFO L168 Benchmark]: Toolchain (without parser) took 2552.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 952.3 MB in the beginning and 999.8 MB in the end (delta: -47.5 MB). Peak memory consumption was 71.5 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:07,036 INFO L168 Benchmark]: CDTParser took 0.29 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 20:50:07,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:07,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.02 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:07,039 INFO L168 Benchmark]: Boogie Preprocessor took 29.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:50:07,039 INFO L168 Benchmark]: RCFGBuilder took 390.96 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:07,040 INFO L168 Benchmark]: TraceAbstraction took 1668.39 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: 82.2 MB). Peak memory consumption was 82.2 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:07,041 INFO L168 Benchmark]: Witness Printer took 67.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 999.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:07,045 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 350.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.02 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 390.96 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1668.39 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: 82.2 MB). Peak memory consumption was 82.2 MB. Max. memory is 11.5 GB. * Witness Printer took 67.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 999.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; VAL [N=0] [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] long long *a = malloc(sizeof(long long)*N); [L24] long long *b = malloc(sizeof(long long)*N); [L25] long long *c = malloc(sizeof(long long)*N); [L27] i=0 VAL [N=1] [L27] COND TRUE i