/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/sina3f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:32:31,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:32:31,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:32:31,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:32:31,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:32:31,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:32:31,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:32:31,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:32:31,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:32:31,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:32:31,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:32:31,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:32:31,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:32:31,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:32:31,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:32:31,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:32:31,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:32:31,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:32:31,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:32:31,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:32:31,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:32:31,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:32:31,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:32:31,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:32:31,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:32:31,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:32:31,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:32:31,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:32:31,621 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:32:31,647 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:32:31,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:32:31,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:32:31,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:32:31,653 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:32:31,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:32:31,653 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:32:31,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:32:31,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:32:31,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:32:31,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:32:31,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:32:31,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:32:31,654 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:32:31,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:32:31,655 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:32:31,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:32:31,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:32:31,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:32:31,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:32:31,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:32:31,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:32:31,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:32:31,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:32:31,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:32:31,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:32:31,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:32:31,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:32:31,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:32:31,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:32:31,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:32:32,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:32:32,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:32:32,017 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:32:32,018 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:32:32,018 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina3f.c [2020-07-07 11:32:32,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212960860/ef9f668cc1bf43c28d28ed248589cbd2/FLAGcfa42c4f9 [2020-07-07 11:32:32,743 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:32:32,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina3f.c [2020-07-07 11:32:32,755 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212960860/ef9f668cc1bf43c28d28ed248589cbd2/FLAGcfa42c4f9 [2020-07-07 11:32:32,976 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212960860/ef9f668cc1bf43c28d28ed248589cbd2 [2020-07-07 11:32:32,987 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:32:32,988 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:32:32,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:32:32,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:32:32,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:32:32,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:32:32" (1/1) ... [2020-07-07 11:32:32,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5035b21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:32, skipping insertion in model container [2020-07-07 11:32:32,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:32:32" (1/1) ... [2020-07-07 11:32:33,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:32:33,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:32:33,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:32:33,261 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:32:33,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:32:33,402 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:32:33,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:33 WrapperNode [2020-07-07 11:32:33,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:32:33,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:32:33,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:32:33,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:32:33,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:33" (1/1) ... [2020-07-07 11:32:33,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:33" (1/1) ... [2020-07-07 11:32:33,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:33" (1/1) ... [2020-07-07 11:32:33,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:33" (1/1) ... [2020-07-07 11:32:33,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:33" (1/1) ... [2020-07-07 11:32:33,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:33" (1/1) ... [2020-07-07 11:32:33,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:33" (1/1) ... [2020-07-07 11:32:33,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:32:33,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:32:33,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:32:33,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:32:33,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:32:33,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:32:33,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:32:33,514 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 11:32:33,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 11:32:33,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:32:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:32:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 11:32:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 11:32:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 11:32:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:32:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 11:32:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:32:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 11:32:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 11:32:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 11:32:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 11:32:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 11:32:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:32:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:32:33,921 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:32:33,921 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 11:32:33,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:32:33 BoogieIcfgContainer [2020-07-07 11:32:33,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:32:33,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:32:33,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:32:33,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:32:33,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:32:32" (1/3) ... [2020-07-07 11:32:33,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@126bbc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:32:33, skipping insertion in model container [2020-07-07 11:32:33,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:32:33" (2/3) ... [2020-07-07 11:32:33,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@126bbc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:32:33, skipping insertion in model container [2020-07-07 11:32:33,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:32:33" (3/3) ... [2020-07-07 11:32:33,935 INFO L109 eAbstractionObserver]: Analyzing ICFG sina3f.c [2020-07-07 11:32:33,947 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:32:33,955 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:32:33,970 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:32:33,999 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:32:33,999 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:32:34,000 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:32:34,000 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:32:34,000 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:32:34,000 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:32:34,001 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:32:34,001 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:32:34,022 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-07 11:32:34,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-07 11:32:34,030 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:32:34,031 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] [2020-07-07 11:32:34,032 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:32:34,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:32:34,038 INFO L82 PathProgramCache]: Analyzing trace with hash -173101897, now seen corresponding path program 1 times [2020-07-07 11:32:34,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:32:34,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071433379] [2020-07-07 11:32:34,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:32:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:32:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:32:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:32:34,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:32:34,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071433379] [2020-07-07 11:32:34,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:32:34,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 11:32:34,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002561138] [2020-07-07 11:32:34,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:32:34,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:32:34,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:32:34,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 11:32:34,306 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-07-07 11:32:34,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:32:34,496 INFO L93 Difference]: Finished difference Result 70 states and 93 transitions. [2020-07-07 11:32:34,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:32:34,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-07-07 11:32:34,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:32:34,518 INFO L225 Difference]: With dead ends: 70 [2020-07-07 11:32:34,518 INFO L226 Difference]: Without dead ends: 35 [2020-07-07 11:32:34,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 11:32:34,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-07 11:32:34,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-07-07 11:32:34,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-07 11:32:34,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-07-07 11:32:34,608 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 26 [2020-07-07 11:32:34,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:32:34,609 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-07-07 11:32:34,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:32:34,610 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-07-07 11:32:34,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-07 11:32:34,611 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:32:34,612 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] [2020-07-07 11:32:34,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:32:34,613 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:32:34,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:32:34,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1503462707, now seen corresponding path program 1 times [2020-07-07 11:32:34,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:32:34,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566510612] [2020-07-07 11:32:34,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:32:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:32:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:32:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:32:34,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:32:34,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566510612] [2020-07-07 11:32:34,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:32:34,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:32:34,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14451314] [2020-07-07 11:32:34,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:32:34,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:32:34,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:32:34,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:32:34,801 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2020-07-07 11:32:35,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:32:35,013 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2020-07-07 11:32:35,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:32:35,014 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-07-07 11:32:35,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:32:35,018 INFO L225 Difference]: With dead ends: 67 [2020-07-07 11:32:35,019 INFO L226 Difference]: Without dead ends: 47 [2020-07-07 11:32:35,021 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 [2020-07-07 11:32:35,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-07-07 11:32:35,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2020-07-07 11:32:35,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-07 11:32:35,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-07-07 11:32:35,039 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 26 [2020-07-07 11:32:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:32:35,040 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-07-07 11:32:35,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:32:35,040 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-07-07 11:32:35,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-07 11:32:35,041 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:32:35,042 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] [2020-07-07 11:32:35,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:32:35,042 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:32:35,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:32:35,043 INFO L82 PathProgramCache]: Analyzing trace with hash -260192085, now seen corresponding path program 1 times [2020-07-07 11:32:35,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:32:35,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907757107] [2020-07-07 11:32:35,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:32:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 11:32:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 11:32:35,251 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 11:32:35,251 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 11:32:35,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 11:32:35,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:32:35 BoogieIcfgContainer [2020-07-07 11:32:35,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:32:35,312 INFO L168 Benchmark]: Toolchain (without parser) took 2321.91 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 102.7 MB in the beginning and 92.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 67.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:32:35,313 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-07 11:32:35,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.58 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 181.4 MB in the end (delta: -79.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2020-07-07 11:32:35,315 INFO L168 Benchmark]: Boogie Preprocessor took 47.13 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 179.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-07 11:32:35,316 INFO L168 Benchmark]: RCFGBuilder took 474.75 ms. Allocated memory is still 202.4 MB. Free memory was 179.1 MB in the beginning and 160.2 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2020-07-07 11:32:35,317 INFO L168 Benchmark]: TraceAbstraction took 1381.16 ms. Allocated memory is still 202.4 MB. Free memory was 159.5 MB in the beginning and 92.9 MB in the end (delta: 66.6 MB). Peak memory consumption was 66.6 MB. Max. memory is 7.1 GB. [2020-07-07 11:32:35,322 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 413.58 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 181.4 MB in the end (delta: -79.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.13 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 179.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 474.75 ms. Allocated memory is still 202.4 MB. Free memory was 179.1 MB in the beginning and 160.2 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1381.16 ms. Allocated memory is still 202.4 MB. Free memory was 159.5 MB in the beginning and 92.9 MB in the end (delta: 66.6 MB). Peak memory consumption was 66.6 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; VAL [\old(N)=10, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [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 VAL [\old(N)=0, a={-2:0}, b={5:0}, i=0, malloc(sizeof(int)*N)={5:0}, malloc(sizeof(long long)*N)={-2:0}, N=1, sum={7:0}] [L31] COND TRUE i