/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/loops/veris.c_sendmail_tTflag_arr_one_loop.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:25:28,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:25:28,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:25:28,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:25:28,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:25:28,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:25:28,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:25:28,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:25:28,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:25:28,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:25:28,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:25:28,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:25:28,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:25:28,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:25:28,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:25:28,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:25:28,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:25:28,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:25:28,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:25:28,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:25:28,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:25:28,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:25:28,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:25:28,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:25:28,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 21:25:28,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:25:28,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:25:28,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:25:28,723 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 [2019-11-06 21:25:28,750 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:25:28,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:25:28,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:25:28,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:25:28,753 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:25:28,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:25:28,754 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:25:28,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:25:28,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:25:28,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:25:28,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:25:28,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:25:28,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:25:28,756 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:25:28,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:25:28,757 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:25:28,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:25:28,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:25:28,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:25:28,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:25:28,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:25:28,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:25:28,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:25:28,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:25:28,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:25:28,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:25:28,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:25:28,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:25:28,760 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:25:29,013 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:25:29,034 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:25:29,039 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:25:29,040 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:25:29,041 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:25:29,042 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2019-11-06 21:25:29,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7d313c85/1c0aeda79270465f93e140ebb9d49b44/FLAG0bfe28d3a [2019-11-06 21:25:29,561 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:25:29,561 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2019-11-06 21:25:29,568 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7d313c85/1c0aeda79270465f93e140ebb9d49b44/FLAG0bfe28d3a [2019-11-06 21:25:29,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7d313c85/1c0aeda79270465f93e140ebb9d49b44 [2019-11-06 21:25:29,965 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:25:29,967 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:25:29,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:25:29,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:25:29,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:25:29,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:25:29" (1/1) ... [2019-11-06 21:25:29,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67954667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:25:29, skipping insertion in model container [2019-11-06 21:25:29,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:25:29" (1/1) ... [2019-11-06 21:25:29,983 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:25:30,004 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:25:30,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:25:30,216 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:25:30,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:25:30,258 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:25:30,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:25:30 WrapperNode [2019-11-06 21:25:30,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:25:30,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:25:30,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:25:30,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:25:30,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:25:30" (1/1) ... [2019-11-06 21:25:30,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:25:30" (1/1) ... [2019-11-06 21:25:30,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:25:30" (1/1) ... [2019-11-06 21:25:30,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:25:30" (1/1) ... [2019-11-06 21:25:30,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:25:30" (1/1) ... [2019-11-06 21:25:30,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:25:30" (1/1) ... [2019-11-06 21:25:30,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:25:30" (1/1) ... [2019-11-06 21:25:30,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:25:30,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:25:30,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:25:30,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:25:30,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:25:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:25:30,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:25:30,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:25:30,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 21:25:30,435 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:25:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:25:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-11-06 21:25:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 21:25:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:25:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:25:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:25:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:25:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:25:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:25:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:25:30,711 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:25:30,712 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-06 21:25:30,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:25:30 BoogieIcfgContainer [2019-11-06 21:25:30,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:25:30,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:25:30,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:25:30,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:25:30,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:25:29" (1/3) ... [2019-11-06 21:25:30,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@829bf5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:25:30, skipping insertion in model container [2019-11-06 21:25:30,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:25:30" (2/3) ... [2019-11-06 21:25:30,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@829bf5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:25:30, skipping insertion in model container [2019-11-06 21:25:30,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:25:30" (3/3) ... [2019-11-06 21:25:30,725 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail_tTflag_arr_one_loop.c [2019-11-06 21:25:30,738 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:25:30,744 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:25:30,756 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:25:30,779 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:25:30,779 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:25:30,779 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:25:30,779 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:25:30,779 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:25:30,779 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:25:30,779 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:25:30,779 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:25:30,796 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-06 21:25:30,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-06 21:25:30,801 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:25:30,802 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:25:30,804 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:25:30,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:25:30,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1522547275, now seen corresponding path program 1 times [2019-11-06 21:25:30,816 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:25:30,816 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438316894] [2019-11-06 21:25:30,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:25:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:25:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:25:30,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:25:30,988 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438316894] [2019-11-06 21:25:30,989 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:25:30,989 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 21:25:30,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388784104] [2019-11-06 21:25:30,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 21:25:30,995 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:25:31,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 21:25:31,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 21:25:31,008 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2019-11-06 21:25:31,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:25:31,092 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-11-06 21:25:31,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 21:25:31,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-06 21:25:31,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:25:31,101 INFO L225 Difference]: With dead ends: 36 [2019-11-06 21:25:31,102 INFO L226 Difference]: Without dead ends: 15 [2019-11-06 21:25:31,105 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 21:25:31,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-06 21:25:31,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-06 21:25:31,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-06 21:25:31,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-11-06 21:25:31,145 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2019-11-06 21:25:31,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:25:31,146 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-11-06 21:25:31,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 21:25:31,146 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-11-06 21:25:31,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-06 21:25:31,147 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:25:31,147 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:25:31,148 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:25:31,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:25:31,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1742365231, now seen corresponding path program 1 times [2019-11-06 21:25:31,149 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:25:31,150 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870554401] [2019-11-06 21:25:31,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:25:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:25:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:25:31,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:25:31,268 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870554401] [2019-11-06 21:25:31,268 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:25:31,268 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 21:25:31,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704127054] [2019-11-06 21:25:31,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 21:25:31,271 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:25:31,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 21:25:31,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 21:25:31,272 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 5 states. [2019-11-06 21:25:31,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:25:31,362 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-11-06 21:25:31,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 21:25:31,363 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-11-06 21:25:31,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:25:31,364 INFO L225 Difference]: With dead ends: 15 [2019-11-06 21:25:31,365 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 21:25:31,366 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-06 21:25:31,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 21:25:31,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 21:25:31,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 21:25:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 21:25:31,367 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-06 21:25:31,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:25:31,367 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 21:25:31,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 21:25:31,368 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 21:25:31,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 21:25:31,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 21:25:31,445 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 21:25:31,446 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-11-06 21:25:31,446 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 21:25:31,446 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 21:25:31,446 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 21:25:31,447 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 21:25:31,447 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 21:25:31,447 INFO L446 ceAbstractionStarter]: At program point L27-2(lines 27 33) the Hoare annotation is: true [2019-11-06 21:25:31,448 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 37) no Hoare annotation was computed. [2019-11-06 21:25:31,448 INFO L446 ceAbstractionStarter]: At program point L27-3(lines 27 33) the Hoare annotation is: true [2019-11-06 21:25:31,448 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 37) no Hoare annotation was computed. [2019-11-06 21:25:31,448 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 10 37) the Hoare annotation is: (= |#valid| |old(#valid)|) [2019-11-06 21:25:31,448 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 20) no Hoare annotation was computed. [2019-11-06 21:25:31,448 INFO L446 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: true [2019-11-06 21:25:31,449 INFO L443 ceAbstractionStarter]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2019-11-06 21:25:31,449 INFO L443 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2019-11-06 21:25:31,449 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-06 21:25:31,449 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2019-11-06 21:25:31,449 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2019-11-06 21:25:31,450 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-06 21:25:31,451 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-06 21:25:31,451 INFO L443 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2019-11-06 21:25:31,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:25:31 BoogieIcfgContainer [2019-11-06 21:25:31,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 21:25:31,469 INFO L168 Benchmark]: Toolchain (without parser) took 1500.81 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 104.5 MB in the beginning and 124.4 MB in the end (delta: -20.0 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB. [2019-11-06 21:25:31,472 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 21:25:31,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.88 ms. Allocated memory is still 140.0 MB. Free memory was 104.3 MB in the beginning and 94.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-06 21:25:31,484 INFO L168 Benchmark]: Boogie Preprocessor took 111.42 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 94.1 MB in the beginning and 181.0 MB in the end (delta: -86.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-11-06 21:25:31,485 INFO L168 Benchmark]: RCFGBuilder took 343.42 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 167.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-11-06 21:25:31,486 INFO L168 Benchmark]: TraceAbstraction took 750.89 ms. Allocated memory is still 203.4 MB. Free memory was 166.7 MB in the beginning and 124.4 MB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2019-11-06 21:25:31,496 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 290.88 ms. Allocated memory is still 140.0 MB. Free memory was 104.3 MB in the beginning and 94.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.42 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 94.1 MB in the beginning and 181.0 MB in the end (delta: -86.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 343.42 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 167.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 750.89 ms. Allocated memory is still 203.4 MB. Free memory was 166.7 MB in the beginning and 124.4 MB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 7 SDslu, 27 SDs, 0 SdLazy, 28 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 19 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...