/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/array-fpi/sina3f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 17:44:23,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:44:23,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:44:23,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:44:23,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:44:23,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:44:23,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:44:23,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:44:23,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:44:23,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:44:23,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:44:23,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:44:23,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:44:23,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:44:23,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:44:23,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:44:23,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:44:23,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:44:23,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:44:23,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:44:23,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:44:23,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:44:23,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:44:23,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:44:23,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 17:44:23,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 17:44:23,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 17:44:23,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 17:44:23,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 17:44:23,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-04 17:44:23,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:44:23,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:44:23,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:44:23,935 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 17:44:23,947 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:44:23,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:44:23,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:44:23,950 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:44:23,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:44:23,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:44:23,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:44:23,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:44:23,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:44:23,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:44:23,951 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:44:23,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:44:23,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:44:23,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:44:23,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:44:23,952 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:44:23,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:44:23,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:44:23,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:44:23,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:44:23,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:44:23,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:44:23,954 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:44:24,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:44:24,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:44:24,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:44:24,437 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:44:24,438 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:44:24,439 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina3f.c [2020-09-04 17:44:24,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9dc4f163/9964ff0fc8a7416ebc3df3cc8c761bea/FLAG98c213284 [2020-09-04 17:44:25,115 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:44:25,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina3f.c [2020-09-04 17:44:25,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9dc4f163/9964ff0fc8a7416ebc3df3cc8c761bea/FLAG98c213284 [2020-09-04 17:44:25,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9dc4f163/9964ff0fc8a7416ebc3df3cc8c761bea [2020-09-04 17:44:25,463 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:44:25,466 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:44:25,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:44:25,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:44:25,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:44:25,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:44:25" (1/1) ... [2020-09-04 17:44:25,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544d7f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:25, skipping insertion in model container [2020-09-04 17:44:25,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:44:25" (1/1) ... [2020-09-04 17:44:25,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:44:25,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:44:25,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:44:25,761 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:44:25,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:44:25,814 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:44:25,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:25 WrapperNode [2020-09-04 17:44:25,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:44:25,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:44:25,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:44:25,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:44:25,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:25" (1/1) ... [2020-09-04 17:44:25,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:25" (1/1) ... [2020-09-04 17:44:25,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:25" (1/1) ... [2020-09-04 17:44:25,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:25" (1/1) ... [2020-09-04 17:44:25,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:25" (1/1) ... [2020-09-04 17:44:25,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:25" (1/1) ... [2020-09-04 17:44:25,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:25" (1/1) ... [2020-09-04 17:44:25,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:44:25,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:44:25,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:44:25,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:44:25,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:25" (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 17:44:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:44:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:44:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 17:44:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 17:44:26,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:44:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:44:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 17:44:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 17:44:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 17:44:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 17:44:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 17:44:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:44:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 17:44:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 17:44:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 17:44:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 17:44:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 17:44:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:44:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:44:26,386 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:44:26,386 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 17:44:26,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:44:26 BoogieIcfgContainer [2020-09-04 17:44:26,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:44:26,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:44:26,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:44:26,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:44:26,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:44:25" (1/3) ... [2020-09-04 17:44:26,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc0ff63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:44:26, skipping insertion in model container [2020-09-04 17:44:26,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:25" (2/3) ... [2020-09-04 17:44:26,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc0ff63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:44:26, skipping insertion in model container [2020-09-04 17:44:26,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:44:26" (3/3) ... [2020-09-04 17:44:26,404 INFO L109 eAbstractionObserver]: Analyzing ICFG sina3f.c [2020-09-04 17:44:26,418 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:44:26,429 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:44:26,453 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:44:26,495 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:44:26,495 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:44:26,496 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:44:26,496 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:44:26,496 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:44:26,496 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:44:26,496 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:44:26,497 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:44:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-09-04 17:44:26,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-04 17:44:26,531 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:26,532 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] [2020-09-04 17:44:26,533 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:26,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:26,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1651935650, now seen corresponding path program 1 times [2020-09-04 17:44:26,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:26,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736863050] [2020-09-04 17:44:26,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:26,629 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:26,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:26,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 17:44:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:26,859 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 17:44:26,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736863050] [2020-09-04 17:44:26,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:26,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 17:44:26,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123542484] [2020-09-04 17:44:26,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 17:44:26,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:26,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 17:44:26,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 17:44:26,894 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 3 states. [2020-09-04 17:44:27,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:27,122 INFO L93 Difference]: Finished difference Result 141 states and 164 transitions. [2020-09-04 17:44:27,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 17:44:27,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2020-09-04 17:44:27,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:27,137 INFO L225 Difference]: With dead ends: 141 [2020-09-04 17:44:27,137 INFO L226 Difference]: Without dead ends: 70 [2020-09-04 17:44:27,142 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 17:44:27,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-04 17:44:27,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-04 17:44:27,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-04 17:44:27,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2020-09-04 17:44:27,204 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 39 [2020-09-04 17:44:27,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:27,205 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2020-09-04 17:44:27,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 17:44:27,205 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2020-09-04 17:44:27,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-04 17:44:27,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:27,207 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] [2020-09-04 17:44:27,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:44:27,208 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:27,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:27,209 INFO L82 PathProgramCache]: Analyzing trace with hash 725298104, now seen corresponding path program 1 times [2020-09-04 17:44:27,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:27,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782793602] [2020-09-04 17:44:27,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:27,212 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:27,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:27,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 17:44:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:27,362 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 17:44:27,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782793602] [2020-09-04 17:44:27,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:27,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 17:44:27,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097300855] [2020-09-04 17:44:27,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 17:44:27,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:27,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 17:44:27,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 17:44:27,366 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand 5 states. [2020-09-04 17:44:27,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:27,663 INFO L93 Difference]: Finished difference Result 140 states and 152 transitions. [2020-09-04 17:44:27,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 17:44:27,663 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-09-04 17:44:27,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:27,668 INFO L225 Difference]: With dead ends: 140 [2020-09-04 17:44:27,668 INFO L226 Difference]: Without dead ends: 100 [2020-09-04 17:44:27,671 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 17:44:27,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-04 17:44:27,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 74. [2020-09-04 17:44:27,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-04 17:44:27,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2020-09-04 17:44:27,694 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 39 [2020-09-04 17:44:27,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:27,695 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2020-09-04 17:44:27,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 17:44:27,695 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2020-09-04 17:44:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-04 17:44:27,697 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:27,698 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] [2020-09-04 17:44:27,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 17:44:27,698 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:27,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:27,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1675406230, now seen corresponding path program 1 times [2020-09-04 17:44:27,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:27,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956390821] [2020-09-04 17:44:27,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:27,731 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 17:44:27,795 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 17:44:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 17:44:27,861 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 17:44:27,916 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 17:44:27,916 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 17:44:27,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 17:44:27,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 05:44:27 BoogieIcfgContainer [2020-09-04 17:44:27,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 17:44:27,946 INFO L168 Benchmark]: Toolchain (without parser) took 2478.76 ms. Allocated memory was 138.9 MB in the beginning and 234.9 MB in the end (delta: 95.9 MB). Free memory was 103.0 MB in the beginning and 178.7 MB in the end (delta: -75.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:27,947 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 17:44:27,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.32 ms. Allocated memory is still 138.9 MB. Free memory was 102.8 MB in the beginning and 92.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:27,949 INFO L168 Benchmark]: Boogie Preprocessor took 129.90 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 92.1 MB in the beginning and 179.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:27,950 INFO L168 Benchmark]: RCFGBuilder took 446.64 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 158.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:27,951 INFO L168 Benchmark]: TraceAbstraction took 1548.29 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 157.5 MB in the beginning and 178.7 MB in the end (delta: -21.2 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:27,955 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 348.32 ms. Allocated memory is still 138.9 MB. Free memory was 102.8 MB in the beginning and 92.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.90 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 92.1 MB in the beginning and 179.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 446.64 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 158.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1548.29 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 157.5 MB in the beginning and 178.7 MB in the end (delta: -21.2 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a 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 sum[1]; [L27] long long *a = malloc(sizeof(long long)*N); [L28] int *b = malloc(sizeof(int)*N); [L30] sum[0] = 1 [L31] i=0 [L31] COND TRUE i