/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/array-fpi/indp5f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 23:09:31,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 23:09:31,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 23:09:31,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 23:09:31,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 23:09:31,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 23:09:31,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 23:09:31,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 23:09:31,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 23:09:31,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 23:09:31,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 23:09:31,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 23:09:31,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 23:09:31,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 23:09:31,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 23:09:31,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 23:09:31,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 23:09:31,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 23:09:31,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 23:09:31,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 23:09:31,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 23:09:31,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 23:09:31,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 23:09:31,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 23:09:31,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 23:09:31,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 23:09:31,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 23:09:31,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 23:09:31,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 23:09:31,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 23:09:31,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 23:09:31,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 23:09:31,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 23:09:31,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 23:09:31,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 23:09:31,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 23:09:31,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 23:09:31,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 23:09:31,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 23:09:31,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 23:09:31,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 23:09:31,298 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 23:09:31,328 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 23:09:31,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 23:09:31,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 23:09:31,333 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 23:09:31,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 23:09:31,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 23:09:31,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 23:09:31,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 23:09:31,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 23:09:31,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 23:09:31,338 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 23:09:31,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 23:09:31,338 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 23:09:31,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 23:09:31,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 23:09:31,339 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 23:09:31,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 23:09:31,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 23:09:31,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 23:09:31,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 23:09:31,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 23:09:31,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 23:09:31,340 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 23:09:31,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 23:09:31,895 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 23:09:31,899 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 23:09:31,902 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 23:09:31,902 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 23:09:31,903 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp5f.c [2020-09-04 23:09:31,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f12274c4/7b60085d76eb456a967c802226f56462/FLAG177337ccc [2020-09-04 23:09:32,577 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 23:09:32,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp5f.c [2020-09-04 23:09:32,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f12274c4/7b60085d76eb456a967c802226f56462/FLAG177337ccc [2020-09-04 23:09:32,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f12274c4/7b60085d76eb456a967c802226f56462 [2020-09-04 23:09:32,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 23:09:32,917 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 23:09:32,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 23:09:32,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 23:09:32,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 23:09:32,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 11:09:32" (1/1) ... [2020-09-04 23:09:32,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f62795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:09:32, skipping insertion in model container [2020-09-04 23:09:32,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 11:09:32" (1/1) ... [2020-09-04 23:09:32,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 23:09:32,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 23:09:33,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 23:09:33,211 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 23:09:33,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 23:09:33,351 INFO L208 MainTranslator]: Completed translation [2020-09-04 23:09:33,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:09:33 WrapperNode [2020-09-04 23:09:33,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 23:09:33,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 23:09:33,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 23:09:33,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 23:09:33,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:09:33" (1/1) ... [2020-09-04 23:09:33,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:09:33" (1/1) ... [2020-09-04 23:09:33,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:09:33" (1/1) ... [2020-09-04 23:09:33,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:09:33" (1/1) ... [2020-09-04 23:09:33,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:09:33" (1/1) ... [2020-09-04 23:09:33,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:09:33" (1/1) ... [2020-09-04 23:09:33,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:09:33" (1/1) ... [2020-09-04 23:09:33,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 23:09:33,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 23:09:33,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 23:09:33,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 23:09:33,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:09:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 23:09:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 23:09:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 23:09:33,476 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 23:09:33,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 23:09:33,476 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 23:09:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 23:09:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 23:09:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 23:09:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 23:09:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 23:09:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 23:09:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 23:09:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 23:09:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 23:09:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 23:09:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 23:09:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 23:09:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 23:09:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 23:09:33,844 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 23:09:33,845 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 23:09:33,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 11:09:33 BoogieIcfgContainer [2020-09-04 23:09:33,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 23:09:33,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 23:09:33,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 23:09:33,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 23:09:33,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 11:09:32" (1/3) ... [2020-09-04 23:09:33,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214910d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 11:09:33, skipping insertion in model container [2020-09-04 23:09:33,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:09:33" (2/3) ... [2020-09-04 23:09:33,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214910d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 11:09:33, skipping insertion in model container [2020-09-04 23:09:33,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 11:09:33" (3/3) ... [2020-09-04 23:09:33,860 INFO L109 eAbstractionObserver]: Analyzing ICFG indp5f.c [2020-09-04 23:09:33,873 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 23:09:33,883 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 23:09:33,907 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 23:09:33,955 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 23:09:33,956 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 23:09:33,956 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 23:09:33,956 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 23:09:33,956 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 23:09:33,956 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 23:09:33,957 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 23:09:33,957 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 23:09:33,975 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-09-04 23:09:33,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-04 23:09:33,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 23:09:33,990 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 23:09:33,990 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 23:09:33,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 23:09:33,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1581664836, now seen corresponding path program 1 times [2020-09-04 23:09:34,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 23:09:34,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881413883] [2020-09-04 23:09:34,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 23:09:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 23:09:34,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 23:09:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 23:09:34,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 23:09:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 23:09:34,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 23:09:34,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881413883] [2020-09-04 23:09:34,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 23:09:34,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 23:09:34,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303258615] [2020-09-04 23:09:34,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 23:09:34,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 23:09:34,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 23:09:34,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 23:09:34,314 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2020-09-04 23:09:34,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 23:09:34,572 INFO L93 Difference]: Finished difference Result 143 states and 166 transitions. [2020-09-04 23:09:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 23:09:34,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-09-04 23:09:34,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 23:09:34,587 INFO L225 Difference]: With dead ends: 143 [2020-09-04 23:09:34,588 INFO L226 Difference]: Without dead ends: 68 [2020-09-04 23:09:34,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 23:09:34,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-04 23:09:34,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-04 23:09:34,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-04 23:09:34,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2020-09-04 23:09:34,654 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 37 [2020-09-04 23:09:34,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 23:09:34,655 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2020-09-04 23:09:34,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 23:09:34,656 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2020-09-04 23:09:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-04 23:09:34,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 23:09:34,658 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 23:09:34,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 23:09:34,659 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 23:09:34,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 23:09:34,659 INFO L82 PathProgramCache]: Analyzing trace with hash 44636293, now seen corresponding path program 1 times [2020-09-04 23:09:34,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 23:09:34,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067441053] [2020-09-04 23:09:34,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 23:09:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 23:09:34,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 23:09:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 23:09:34,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 23:09:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 23:09:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 23:09:34,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067441053] [2020-09-04 23:09:34,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 23:09:34,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 23:09:34,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926943434] [2020-09-04 23:09:34,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 23:09:34,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 23:09:34,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 23:09:34,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 23:09:34,842 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 5 states. [2020-09-04 23:09:35,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 23:09:35,130 INFO L93 Difference]: Finished difference Result 138 states and 150 transitions. [2020-09-04 23:09:35,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 23:09:35,131 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-09-04 23:09:35,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 23:09:35,133 INFO L225 Difference]: With dead ends: 138 [2020-09-04 23:09:35,133 INFO L226 Difference]: Without dead ends: 98 [2020-09-04 23:09:35,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-04 23:09:35,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-04 23:09:35,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 73. [2020-09-04 23:09:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-04 23:09:35,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2020-09-04 23:09:35,152 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 37 [2020-09-04 23:09:35,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 23:09:35,153 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2020-09-04 23:09:35,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 23:09:35,153 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-09-04 23:09:35,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-04 23:09:35,155 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 23:09:35,156 INFO L422 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 23:09:35,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 23:09:35,156 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 23:09:35,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 23:09:35,157 INFO L82 PathProgramCache]: Analyzing trace with hash -25889220, now seen corresponding path program 1 times [2020-09-04 23:09:35,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 23:09:35,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630976319] [2020-09-04 23:09:35,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 23:09:35,178 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-09-04 23:09:35,179 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-09-04 23:09:35,179 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 23:09:35,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 23:09:35,226 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-04 23:09:35,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 11:09:35 BoogieIcfgContainer [2020-09-04 23:09:35,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 23:09:35,238 INFO L168 Benchmark]: Toolchain (without parser) took 2317.35 ms. Allocated memory was 140.0 MB in the beginning and 234.4 MB in the end (delta: 94.4 MB). Free memory was 102.7 MB in the beginning and 189.4 MB in the end (delta: -86.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB. [2020-09-04 23:09:35,240 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 140.0 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 23:09:35,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.50 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 102.5 MB in the beginning and 181.2 MB in the end (delta: -78.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-09-04 23:09:35,243 INFO L168 Benchmark]: Boogie Preprocessor took 48.35 ms. Allocated memory is still 202.4 MB. Free memory was 181.2 MB in the beginning and 178.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-09-04 23:09:35,244 INFO L168 Benchmark]: RCFGBuilder took 449.60 ms. Allocated memory is still 202.4 MB. Free memory was 178.8 MB in the beginning and 156.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-09-04 23:09:35,246 INFO L168 Benchmark]: TraceAbstraction took 1379.49 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 156.1 MB in the beginning and 189.4 MB in the end (delta: -33.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 23:09:35,263 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 140.0 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 434.50 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 102.5 MB in the beginning and 181.2 MB in the end (delta: -78.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.35 ms. Allocated memory is still 202.4 MB. Free memory was 181.2 MB in the beginning and 178.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 449.60 ms. Allocated memory is still 202.4 MB. Free memory was 178.8 MB in the beginning and 156.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1379.49 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 156.1 MB in the beginning and 189.4 MB in the end (delta: -33.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long *a = malloc(sizeof(long long)*N); [L27] long long sum[1]; [L29] sum[0] = 1 [L30] i=0 [L30] COND TRUE i