/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/indp3f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 17:43:47,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:43:47,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:43:47,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:43:47,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:43:47,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:43:47,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:43:47,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:43:47,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:43:47,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:43:47,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:43:47,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:43:47,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:43:47,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:43:47,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:43:47,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:43:47,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:43:47,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:43:47,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:43:47,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:43:47,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:43:47,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:43:47,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:43:47,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:43:47,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 17:43:47,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 17:43:47,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 17:43:47,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 17:43:47,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 17:43:47,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-04 17:43:47,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:43:47,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:43:47,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:43:47,798 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 17:43:47,810 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:43:47,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:43:47,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:43:47,812 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:43:47,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:43:47,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:43:47,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:43:47,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:43:47,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:43:47,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:43:47,813 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:43:47,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:43:47,814 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:43:47,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:43:47,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:43:47,814 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:43:47,814 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:43:47,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:43:47,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:43:47,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:43:47,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:43:47,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:43:47,816 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:43:48,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:43:48,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:43:48,287 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:43:48,289 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:43:48,289 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:43:48,290 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp3f.c [2020-09-04 17:43:48,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af327b68e/3b14fee811804877a5017dbb3296e5d5/FLAGad3d4159d [2020-09-04 17:43:48,886 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:43:48,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp3f.c [2020-09-04 17:43:48,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af327b68e/3b14fee811804877a5017dbb3296e5d5/FLAGad3d4159d [2020-09-04 17:43:49,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af327b68e/3b14fee811804877a5017dbb3296e5d5 [2020-09-04 17:43:49,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:43:49,243 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:43:49,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:43:49,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:43:49,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:43:49,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:43:49" (1/1) ... [2020-09-04 17:43:49,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c82f562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:43:49, skipping insertion in model container [2020-09-04 17:43:49,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:43:49" (1/1) ... [2020-09-04 17:43:49,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:43:49,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:43:49,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:43:49,525 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:43:49,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:43:49,571 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:43:49,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:43:49 WrapperNode [2020-09-04 17:43:49,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:43:49,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:43:49,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:43:49,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:43:49,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:43:49" (1/1) ... [2020-09-04 17:43:49,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:43:49" (1/1) ... [2020-09-04 17:43:49,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:43:49" (1/1) ... [2020-09-04 17:43:49,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:43:49" (1/1) ... [2020-09-04 17:43:49,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:43:49" (1/1) ... [2020-09-04 17:43:49,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:43:49" (1/1) ... [2020-09-04 17:43:49,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:43:49" (1/1) ... [2020-09-04 17:43:49,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:43:49,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:43:49,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:43:49,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:43:49,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:43:49" (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 17:43:49,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:43:49,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:43:49,778 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 17:43:49,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 17:43:49,778 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:43:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:43:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 17:43:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 17:43:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 17:43:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 17:43:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 17:43:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:43:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 17:43:49,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 17:43:49,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 17:43:49,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:43:49,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:43:49,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 17:43:50,144 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:43:50,144 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 17:43:50,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:43:50 BoogieIcfgContainer [2020-09-04 17:43:50,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:43:50,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:43:50,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:43:50,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:43:50,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:43:49" (1/3) ... [2020-09-04 17:43:50,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea7a03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:43:50, skipping insertion in model container [2020-09-04 17:43:50,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:43:49" (2/3) ... [2020-09-04 17:43:50,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea7a03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:43:50, skipping insertion in model container [2020-09-04 17:43:50,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:43:50" (3/3) ... [2020-09-04 17:43:50,160 INFO L109 eAbstractionObserver]: Analyzing ICFG indp3f.c [2020-09-04 17:43:50,171 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:43:50,179 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:43:50,198 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:43:50,223 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:43:50,223 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:43:50,224 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:43:50,224 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:43:50,224 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:43:50,224 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:43:50,225 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:43:50,225 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:43:50,243 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-04 17:43:50,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-04 17:43:50,257 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:43:50,258 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] [2020-09-04 17:43:50,259 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:43:50,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:43:50,266 INFO L82 PathProgramCache]: Analyzing trace with hash 13261349, now seen corresponding path program 1 times [2020-09-04 17:43:50,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:43:50,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924743816] [2020-09-04 17:43:50,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:43:50,351 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:43:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:43:50,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:43:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:43:50,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 17:43:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:43:50,532 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 17:43:50,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924743816] [2020-09-04 17:43:50,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:43:50,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 17:43:50,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002426879] [2020-09-04 17:43:50,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 17:43:50,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:43:50,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 17:43:50,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 17:43:50,565 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 3 states. [2020-09-04 17:43:50,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:43:50,763 INFO L93 Difference]: Finished difference Result 125 states and 148 transitions. [2020-09-04 17:43:50,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 17:43:50,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-09-04 17:43:50,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:43:50,777 INFO L225 Difference]: With dead ends: 125 [2020-09-04 17:43:50,777 INFO L226 Difference]: Without dead ends: 64 [2020-09-04 17:43:50,782 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 17:43:50,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-04 17:43:50,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-09-04 17:43:50,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-04 17:43:50,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2020-09-04 17:43:50,842 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 35 [2020-09-04 17:43:50,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:43:50,842 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2020-09-04 17:43:50,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 17:43:50,843 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2020-09-04 17:43:50,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-04 17:43:50,844 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:43:50,845 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] [2020-09-04 17:43:50,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:43:50,845 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:43:50,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:43:50,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1010060324, now seen corresponding path program 1 times [2020-09-04 17:43:50,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:43:50,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1161792629] [2020-09-04 17:43:50,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:43:50,849 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:43:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:43:50,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:43:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:43:50,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 17:43:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:43:50,987 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 17:43:50,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1161792629] [2020-09-04 17:43:50,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:43:50,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 17:43:50,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958921282] [2020-09-04 17:43:50,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 17:43:50,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:43:50,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 17:43:50,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 17:43:50,991 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 5 states. [2020-09-04 17:43:51,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:43:51,267 INFO L93 Difference]: Finished difference Result 130 states and 142 transitions. [2020-09-04 17:43:51,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 17:43:51,267 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-09-04 17:43:51,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:43:51,272 INFO L225 Difference]: With dead ends: 130 [2020-09-04 17:43:51,272 INFO L226 Difference]: Without dead ends: 92 [2020-09-04 17:43:51,274 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 17:43:51,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-04 17:43:51,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 68. [2020-09-04 17:43:51,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-04 17:43:51,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2020-09-04 17:43:51,296 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 35 [2020-09-04 17:43:51,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:43:51,297 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2020-09-04 17:43:51,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 17:43:51,297 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2020-09-04 17:43:51,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-04 17:43:51,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:43:51,299 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] [2020-09-04 17:43:51,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 17:43:51,300 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:43:51,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:43:51,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1919266361, now seen corresponding path program 1 times [2020-09-04 17:43:51,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:43:51,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205532589] [2020-09-04 17:43:51,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:43:51,334 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:43:51,352 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-09-04 17:43:51,352 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 17:43:51,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 17:43:51,379 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-04 17:43:51,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 05:43:51 BoogieIcfgContainer [2020-09-04 17:43:51,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 17:43:51,382 INFO L168 Benchmark]: Toolchain (without parser) took 2138.88 ms. Allocated memory was 139.5 MB in the beginning and 235.9 MB in the end (delta: 96.5 MB). Free memory was 103.8 MB in the beginning and 192.8 MB in the end (delta: -89.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. [2020-09-04 17:43:51,383 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 17:43:51,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.78 ms. Allocated memory is still 139.5 MB. Free memory was 103.6 MB in the beginning and 93.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-09-04 17:43:51,386 INFO L168 Benchmark]: Boogie Preprocessor took 125.06 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 93.1 MB in the beginning and 179.8 MB in the end (delta: -86.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-09-04 17:43:51,387 INFO L168 Benchmark]: RCFGBuilder took 452.95 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 159.8 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-09-04 17:43:51,388 INFO L168 Benchmark]: TraceAbstraction took 1227.86 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 159.1 MB in the beginning and 192.8 MB in the end (delta: -33.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 17:43:51,392 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 327.78 ms. Allocated memory is still 139.5 MB. Free memory was 103.6 MB in the beginning and 93.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.06 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 93.1 MB in the beginning and 179.8 MB in the end (delta: -86.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 452.95 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 159.8 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1227.86 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 159.1 MB in the beginning and 192.8 MB in the end (delta: -33.7 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); [L28] i=0 [L28] COND TRUE i