./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/indp5f.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/array-fpi/indp5f.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 261a32248e9ac2597caf1e85d7c8698e07c6c32d .................................................................................................................................................................................................................................................................................................................................................................................................................... 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-f6fb2bb [2019-11-19 18:25:01,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:25:01,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:25:01,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:25:01,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:25:01,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:25:01,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:25:01,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:25:01,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:25:01,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:25:01,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:25:01,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:25:01,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:25:01,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:25:01,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:25:01,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:25:01,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:25:01,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:25:01,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:25:01,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:25:01,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:25:01,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:25:01,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:25:01,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:25:01,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:25:01,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:25:01,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:25:01,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:25:01,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:25:01,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:25:01,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:25:01,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:25:01,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:25:01,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:25:01,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:25:01,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:25:01,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:25:01,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:25:01,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:25:01,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:25:01,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:25:01,500 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 18:25:01,521 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:25:01,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:25:01,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:25:01,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:25:01,523 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:25:01,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:25:01,524 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:25:01,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 18:25:01,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:25:01,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:25:01,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:25:01,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:25:01,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:25:01,526 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:25:01,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:25:01,526 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:25:01,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:25:01,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:25:01,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:25:01,530 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:25:01,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:25:01,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:25:01,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:25:01,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:25:01,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:25:01,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 18:25:01,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 18:25:01,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:25:01,536 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 -> 261a32248e9ac2597caf1e85d7c8698e07c6c32d [2019-11-19 18:25:01,837 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:25:01,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:25:01,860 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:25:01,861 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:25:01,862 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:25:01,864 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/indp5f.c [2019-11-19 18:25:01,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42cd60497/adc91f62c1a140f398dcca3ad4e2405b/FLAG22201b8ee [2019-11-19 18:25:02,427 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:25:02,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/indp5f.c [2019-11-19 18:25:02,439 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42cd60497/adc91f62c1a140f398dcca3ad4e2405b/FLAG22201b8ee [2019-11-19 18:25:02,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42cd60497/adc91f62c1a140f398dcca3ad4e2405b [2019-11-19 18:25:02,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:25:02,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:25:02,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:25:02,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:25:02,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:25:02,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:25:02" (1/1) ... [2019-11-19 18:25:02,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2162ddd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:02, skipping insertion in model container [2019-11-19 18:25:02,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:25:02" (1/1) ... [2019-11-19 18:25:02,824 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:25:02,842 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:25:03,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:25:03,086 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:25:03,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:25:03,123 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:25:03,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:03 WrapperNode [2019-11-19 18:25:03,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:25:03,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:25:03,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:25:03,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:25:03,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:03" (1/1) ... [2019-11-19 18:25:03,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:03" (1/1) ... [2019-11-19 18:25:03,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:25:03,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:25:03,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:25:03,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:25:03,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:03" (1/1) ... [2019-11-19 18:25:03,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:03" (1/1) ... [2019-11-19 18:25:03,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:03" (1/1) ... [2019-11-19 18:25:03,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:03" (1/1) ... [2019-11-19 18:25:03,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:03" (1/1) ... [2019-11-19 18:25:03,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:03" (1/1) ... [2019-11-19 18:25:03,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:03" (1/1) ... [2019-11-19 18:25:03,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:25:03,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:25:03,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:25:03,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:25:03,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:03" (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 18:25:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 18:25:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 18:25:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-19 18:25:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:25:03,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:25:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 18:25:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 18:25:03,641 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:25:03,642 INFO L285 CfgBuilder]: Removed 11 assume(true) statements. [2019-11-19 18:25:03,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:25:03 BoogieIcfgContainer [2019-11-19 18:25:03,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:25:03,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:25:03,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:25:03,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:25:03,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:25:02" (1/3) ... [2019-11-19 18:25:03,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f2c7dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:25:03, skipping insertion in model container [2019-11-19 18:25:03,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:03" (2/3) ... [2019-11-19 18:25:03,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f2c7dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:25:03, skipping insertion in model container [2019-11-19 18:25:03,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:25:03" (3/3) ... [2019-11-19 18:25:03,652 INFO L109 eAbstractionObserver]: Analyzing ICFG indp5f.c [2019-11-19 18:25:03,660 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:25:03,666 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 18:25:03,676 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 18:25:03,697 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:25:03,698 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:25:03,698 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:25:03,698 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:25:03,699 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:25:03,699 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:25:03,699 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:25:03,699 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:25:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-19 18:25:03,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 18:25:03,718 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:25:03,719 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:25:03,719 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:25:03,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:25:03,724 INFO L82 PathProgramCache]: Analyzing trace with hash -616844446, now seen corresponding path program 1 times [2019-11-19 18:25:03,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:25:03,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771571417] [2019-11-19 18:25:03,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:25:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:25:03,858 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 18:25:03,859 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771571417] [2019-11-19 18:25:03,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:25:03,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 18:25:03,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912775454] [2019-11-19 18:25:03,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 18:25:03,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:25:03,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 18:25:03,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 18:25:03,881 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-19 18:25:03,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:25:03,898 INFO L93 Difference]: Finished difference Result 45 states and 64 transitions. [2019-11-19 18:25:03,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 18:25:03,899 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-11-19 18:25:03,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:25:03,907 INFO L225 Difference]: With dead ends: 45 [2019-11-19 18:25:03,908 INFO L226 Difference]: Without dead ends: 21 [2019-11-19 18:25:03,911 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 18:25:03,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-19 18:25:03,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-19 18:25:03,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-19 18:25:03,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-19 18:25:03,946 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 15 [2019-11-19 18:25:03,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:25:03,947 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-19 18:25:03,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 18:25:03,947 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-19 18:25:03,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 18:25:03,948 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:25:03,948 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:25:03,949 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:25:03,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:25:03,949 INFO L82 PathProgramCache]: Analyzing trace with hash -212259730, now seen corresponding path program 1 times [2019-11-19 18:25:03,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:25:03,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956304125] [2019-11-19 18:25:03,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:25:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:25:04,026 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 18:25:04,027 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956304125] [2019-11-19 18:25:04,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:25:04,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 18:25:04,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884796940] [2019-11-19 18:25:04,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 18:25:04,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:25:04,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 18:25:04,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 18:25:04,031 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 3 states. [2019-11-19 18:25:04,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:25:04,099 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2019-11-19 18:25:04,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 18:25:04,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-19 18:25:04,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:25:04,101 INFO L225 Difference]: With dead ends: 39 [2019-11-19 18:25:04,101 INFO L226 Difference]: Without dead ends: 23 [2019-11-19 18:25:04,102 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 18:25:04,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-19 18:25:04,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-11-19 18:25:04,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-19 18:25:04,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-11-19 18:25:04,108 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2019-11-19 18:25:04,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:25:04,109 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-11-19 18:25:04,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 18:25:04,109 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-19 18:25:04,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-19 18:25:04,110 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:25:04,110 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:25:04,111 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:25:04,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:25:04,111 INFO L82 PathProgramCache]: Analyzing trace with hash -673295792, now seen corresponding path program 1 times [2019-11-19 18:25:04,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:25:04,112 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821680781] [2019-11-19 18:25:04,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:25:04,126 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 18:25:04,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859280229] [2019-11-19 18:25:04,127 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 18:25:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:25:04,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-19 18:25:04,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:25:04,252 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 18:25:04,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821680781] [2019-11-19 18:25:04,254 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-19 18:25:04,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859280229] [2019-11-19 18:25:04,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:25:04,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 18:25:04,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995602144] [2019-11-19 18:25:04,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 18:25:04,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:25:04,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 18:25:04,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 18:25:04,257 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 4 states. [2019-11-19 18:25:04,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:25:04,363 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2019-11-19 18:25:04,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 18:25:04,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-19 18:25:04,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:25:04,365 INFO L225 Difference]: With dead ends: 44 [2019-11-19 18:25:04,367 INFO L226 Difference]: Without dead ends: 31 [2019-11-19 18:25:04,367 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 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 18:25:04,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-19 18:25:04,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2019-11-19 18:25:04,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-19 18:25:04,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-11-19 18:25:04,381 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 17 [2019-11-19 18:25:04,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:25:04,381 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-11-19 18:25:04,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 18:25:04,383 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-11-19 18:25:04,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-19 18:25:04,383 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:25:04,384 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, 1, 1, 1, 1] [2019-11-19 18:25:04,584 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:25:04,585 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:25:04,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:25:04,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1943746392, now seen corresponding path program 1 times [2019-11-19 18:25:04,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:25:04,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110732446] [2019-11-19 18:25:04,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:25:04,601 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 18:25:04,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475393286] [2019-11-19 18:25:04,602 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 18:25:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:25:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:25:04,731 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 18:25:04,732 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 18:25:04,944 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:25:04,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:25:04 BoogieIcfgContainer [2019-11-19 18:25:04,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 18:25:04,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 18:25:04,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 18:25:04,990 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 18:25:04,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:25:03" (3/4) ... [2019-11-19 18:25:04,994 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 18:25:05,066 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 18:25:05,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 18:25:05,069 INFO L168 Benchmark]: Toolchain (without parser) took 2261.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -65.5 MB). Peak memory consumption was 58.3 MB. Max. memory is 11.5 GB. [2019-11-19 18:25:05,069 INFO L168 Benchmark]: CDTParser took 0.44 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 18:25:05,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.69 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:25:05,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:25:05,072 INFO L168 Benchmark]: Boogie Preprocessor took 31.95 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 18:25:05,073 INFO L168 Benchmark]: RCFGBuilder took 369.23 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:25:05,073 INFO L168 Benchmark]: TraceAbstraction took 1344.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.6 MB). Peak memory consumption was 70.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:25:05,074 INFO L168 Benchmark]: Witness Printer took 76.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:25:05,078 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 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 316.69 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 117.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 369.23 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1344.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.6 MB). Peak memory consumption was 70.6 MB. Max. memory is 11.5 GB. * Witness Printer took 76.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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 sum[1]; [L26] sum[0] = 1 [L27] i=0 VAL [N=1] [L27] COND TRUE i